ciferi Blog

ISA, IFRS, IAS & CSRD Standards, Explained

Plain-language guides to audit, accounting, and sustainability standards for practitioners.


Showing 288 of 288 guides

Revised Standards & Implementation

ISA 240 & 570 Revised · 15 guides

December 2026 ISA Deadline: What Your Firm Needs to Prepare Now

ISA 240 (Revised) and ISA 570 (Revised 2024) both take effect 15 December 2026. Preparation timeline with template updates and training for non-Big 4 firms.

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Revised ISA Standards 2026: What's Changing

ISA 240 (Revised) and ISA 570 (Revised 2024) take effect 15 December 2026. Key changes to fraud and going concern procedures for non-Big 4 audit firms.

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IAASB 2026 Updates: What Auditors Need to Know

Every IAASB standard effective 15 December 2026: ISA 240, ISA 570, ISSA 5000, PTE amendments, ISA 500 series pipeline, and a worked implementation timeline.

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IASB 2026 Agenda: Upcoming Standard Changes That Affect Your Audit Files

IASB 2026 agenda: IFRS 18 replacing IAS 1, rate-regulated activities standard, IFRS 9/7 amendments, intangible assets project, and what auditors need to do now.

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ISA 240 Revised 2024: Everything That Changed

ISA 240 (Revised) removes "accept records as genuine," adds a fraud-specific stand-back, expands third-party fraud coverage, and takes effect 15 December 2026.

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ISA 240 Revised vs ISA 240 Current: Side-by-Side Comparison

Side-by-side comparison of ISA 240 (Revised) versus extant ISA 240: every requirement that changed, with paragraph references and file-level examples.

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ISA 240 Revised: Strengthened Management Override Procedures

How ISA 240 (Revised) changes management override testing for journal entries, accounting estimates, and unusual transactions. Effective 15 December 2026.

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ISA 240 Revised: New Whistleblower and Third-Party Fraud Guidance

What ISA 240 (Revised) requires for whistleblower programme understanding and third-party fraud response, with worked example. For non-Big 4 firms.

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ISA 240 Revised: New Fraud Brainstorming Requirements Explained

What ISA 240 Revised changes for your fraud brainstorming session: third-party misappropriation, fraud risk factors, documentation of matters discussed.

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How to Update Your Fraud Documentation for ISA 240 Revised

How to update your fraud documentation for ISA 240 Revised, including the new stand-back requirement, expanded discussion records, and a practical checklist.

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ISA 240 Revised Implementation Checklist for Non-Big 4 Firms

Practical implementation checklist for ISA 240 (Revised) at non-Big 4 firms: templates, file changes, and training priorities before the December 2026 deadline.

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ISA 570 Revised 2024: What Changed for Going Concern

ISA 570 (Revised 2024) requires gross-basis identification, management method evaluation on every audit, extended assessment period, and new report conclusions.

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ISA 570 Revised vs ISA 570 Current: Side-by-Side Comparison

ISA 570 (Revised 2024) vs current ISA 570: gross basis assessment, mandatory management evaluation, extended period, and new auditor's report sections.

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ISA 570 Revised: New Event and Condition Assessment Framework

How ISA 570 (Revised 2024) changes going concern assessment with gross-basis evaluation, extended assessment periods, and mandatory auditor report content.

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How to Update Your Going Concern Documentation for ISA 570 Revised

Update your going concern file for ISA 570 (Revised 2024). Covers gross basis identification, management assessment evaluation, extended period, and reports.

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General Principles & Responsibilities

ISA 200–265 · 21 guides

Audit Risk Model Explained: AR = IR x CR x DR Under ISA 200 and ISA 315

The audit risk model (AR = IR x CR x DR) explained under ISA 200 and ISA 315 with paragraph references, a worked example, and practical file decisions.

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ISA 200: Overall Objectives of the Independent Auditor: Complete Guide

ISA 200 defines the auditor's objectives, reasonable assurance, the audit risk model, and professional skepticism. Plain-language guide to the ISA framework.

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ISA 210: Preconditions, Engagement Letters and Terms

ISA 210 covers audit preconditions, engagement letter requirements, recurring audits, and when to decline or withdraw. Plain-language practitioner guide.

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Year-End Audit Preparation Guide for Clients

How to prepare your audit clients for year-end fieldwork under ISA 210 and ISA 260. Includes a preparation letter structure, delivery timeline, and example.

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ISA 220 (Revised): Quality Management for Audit Engagements

ISA 220 (Revised) explained: the engagement partner's quality management responsibilities, from ethical requirements to direction, supervision, and the EQR.

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ISA 230: Audit Documentation: Complete Guide

ISA 230 audit documentation explained: the experienced auditor test, timely preparation, final audit file assembly, and rules for post-report modifications.

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How to Build a Fraud Risk Response Matrix That Links Every Risk to a Procedure

How to build a fraud risk response matrix under ISA 240 that maps every identified risk to a specific procedure with documented timing, nature, and extent.

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ISA 240 (Revised) Stand-back Evaluation: What It Requires and How to Document It

ISA 240 (Revised) stand-back evaluation at paragraph 54: what the two new completion requirements mean, how they differ from ISA 330, and documentation.

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ISA 240 Fraud Risk Factors: How to Evaluate All Three Dimensions on a Real Engagement

How to evaluate all ISA 240 Appendix 1 fraud risk factors across the three fraud triangle dimensions with entity-specific evidence on a real engagement.

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Fraud Risk Brainstorming: How to Run and Document the ISA 240.29 Discussion

How to run and document the ISA 240 fraud risk brainstorming discussion with a structured 11-item agenda from paragraph 29 and pre-meeting preparation.

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How to Document Management Override Procedures: Journal Entries, Estimates, and Unusual Transactions

How to document ISA 240 management override procedures: journal entry testing with gating steps, estimates bias review, and unusual transaction evaluation.

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Revenue recognition fraud risk: when and how to rebut the presumption under ISA 240

ISA 240 revenue fraud presumption: when rebuttal is appropriate and how to document a per-stream assessment that survives review.

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December 2026 ISA Deadline: 7 Standards Changing at Once

Seven ISAs take effect for periods beginning 15 December 2026. What changed in ISA 240, 500, 200, 220, 230, 700, and 570, and what firms must do now.

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How to Respond to Fraud Indicators During an Audit Under ISA 240

How to respond to fraud indicators during an audit under ISA 240, including journal entry testing, management override procedures, and escalation requirements.

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ISA 240: Fraud Risk Factors, Journal Entries and Override

ISA 240 explained: the fraud triangle, risk assessment, management override procedures, revenue recognition presumption, and communication.

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How to Test Journal Entries for Fraud Under ISA 240

How to test journal entries for fraud under ISA 240, with fraud-specific selection criteria, population completeness, testing depth, and file documentation.

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ISA 250: Laws, Regulations and Non-Compliance in Audits

ISA 250 (Revised) explained: two categories of laws and regulations, auditor responsibilities, non-compliance procedures, reporting obligations, and NOCLAR.

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ISA 260 (Revised): Communication with Those Charged with Governance: Complete Guide

ISA 260 (Revised) explained: who TCWG are, what auditors must communicate, timing, two-way communication, and independence.

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ISA 265 Communicating Internal Control Deficiencies: When and How to Report

ISA 265: when and how to communicate internal control deficiencies to governance and management, reporting triggers, and common errors.

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ISA 265: Reporting Internal Control Deficiencies

ISA 265 explained: deficiencies vs significant deficiencies, who to communicate to, written communication requirements, and management letters.

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How to Write an Audit Findings Report Under ISA 265

How to write an audit findings report under ISA 265, with the five-part finding structure, quantified effects, worked example, and checklist for partner review.

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Risk Assessment & Response

ISA 300–450 · 18 guides

ISA 300 Planning an Audit: The Planning Memorandum Structure

How to structure an ISA 300 audit planning memorandum, including engagement context, materiality, risk assessment approach, key areas, and timing.

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How to Write an Audit Planning Memorandum Under ISA 300

How to write an audit planning memorandum under ISA 300. Worked example for a Dutch holding company showing every section a quality reviewer expects to find.

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ISA 300: Planning an Audit of Financial Statements

ISA 300 explained: overall audit strategy vs. audit plan, preliminary engagement activities, iterative planning, direction and supervision, and documentation.

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How to Build an Audit Program From Scratch

How to build an audit program from scratch under ISA 300 and ISA 330, linking each assessed risk to specific procedures, with a worked example for reviewers.

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ISA 315 (Revised 2019) Risk Assessment: The Spectrum of Inherent Risk

How ISA 315 (Revised 2019) requires a spectrum of inherent risk, not binary high/low. Risk assessment at assertion level with worked example.

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ISA 315 (Revised 2019): Risk Assessment Procedures

ISA 315 (Revised 2019) explained for auditors. The risk assessment process, five components of internal control, inherent risk spectrum, and IT requirements.

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How to Perform a Walkthrough Test Under ISA 315

How to perform a walkthrough test under ISA 315.A178 with transaction selection, documentation, a worked example, and the distinction from tests of controls.

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How to Document Internal Controls

How to document internal controls in an audit file under ISA 315, including control descriptions, walkthroughs, design assessments, and what inspectors flag.

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Month-End Close Checklist for Controllers

A structured month-end close checklist for controllers at mid-market European companies, with timing, ownership, and the reconciliations auditors check first.

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How to Set Materiality for Different Industries: ISA 320 Benchmarks

How to select ISA 320 materiality benchmarks by industry type, apply the percentage ranges from ISA 320.A3-A7, and document qualitative adjustments properly.

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How to Calculate Materiality for Different Industries

How to calculate audit materiality under ISA 320 for different industries, including benchmark selection, percentage ranges, and qualitative adjustments.

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ISA 320: Materiality and Performance Materiality Defined

ISA 320 materiality guide for auditors. Benchmarks, percentages, performance materiality, specific materiality, revision triggers, and qualitative factors.

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ISA 330: The Auditor's Responses to Assessed Risks: Complete Guide

ISA 330 guide for auditors. Tests of controls vs. substantive procedures, combined approach, dual-purpose testing, interim testing, and stand-back evaluation.

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How to Evaluate a Service Organisation Report: The ISA 402 User Auditor Checklist

How to evaluate an ISAE 3402 or SOC 1 report as a user auditor under ISA 402, including Type 1 vs Type 2, CUECs, bridge letters, and gap periods.

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ISA 402: Using Service Organisation Reports in Audits

ISA 402 explained: the user auditor's responsibilities when clients outsource, Type 1 vs Type 2 reports under ISAE 3402, CUECs, and subservice organisations.

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How to Review a Service Organisation Report (SOC/ISAE 3402)

How to review a Type II service organisation report under ISA 402.15, including CUEC testing, period gap procedures, and a worked example with bridge letter.

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ISA 450 Misstatement Accumulation: Tracking Factual, Judgmental, and Projected Misstatements

How to accumulate and evaluate factual, judgmental, and projected misstatements under ISA 450, including qualitative considerations and TCWG communication.

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ISA 450: Evaluating Misstatements and the Trivial Threshold

ISA 450 explained: how to accumulate and evaluate misstatements. Covers clearly trivial thresholds, factual vs projected misstatements, and reporting effects.

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Audit Evidence

ISA 500–580 · 28 guides

ISA 500: Audit Evidence Requirements and Reliability

ISA 500 explained: sufficient and appropriate audit evidence, the seven procedure types, reliability hierarchy, external sources, and item selection.

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How to Perform Stock Count Observations Under ISA 501

How to plan and perform inventory stock count observations under ISA 501.4-8, with attendance procedures, test count documentation, and a worked example.

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ISA 501: Audit Evidence: Specific Considerations for Selected Items: Complete Guide

ISA 501 explained: audit procedures for inventory physical counting, litigation and claims confirmation letters, and segment information disclosures.

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Audit Confirmation Letters: ISA 505 Guide

How to design, send, and evaluate external confirmations under ISA 505: bank letters, receivables, legal confirmations, with worked example.

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ISA 505: External Confirmations and Positive vs Negative Requests

ISA 505 explained: positive vs. negative confirmations, blank confirmations, non-responses and exceptions, management refusal, and reliability evaluation.

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ISA 510 Opening Balances: First-Year Engagement Procedures

ISA 510 explained: opening balance procedures for first-year engagements, predecessor auditor coordination, and opinion modifications.

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ISA 510: Opening Balances and Predecessor Auditor Steps

ISA 510 explained: opening balance procedures for first-year engagements, predecessor auditor review, unaudited prior periods, and reporting implications.

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First-Year Audit Engagement Checklist

First-year audit engagement checklist covering ISA 510 opening balances, predecessor auditor communication, risk assessment procedures, and a worked example.

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ISA 520 Analytical Procedures: Setting Expectations and Investigating Variances

ISA 520: setting expectations, investigating variances, threshold-setting, data reliability, and what reviewers check on analytical procedures.

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ISA 520: Analytical Procedures at Planning and Completion

ISA 520 explained: analytical procedures as substantive tests and overall review. How to develop expectations, set thresholds, and investigate fluctuations.

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How to Perform Analytical Procedures Under ISA 520

How to perform analytical procedures under ISA 520, including expectation development, threshold setting, investigation of variances, and what reviewers check.

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Monetary Unit Sampling in Practice: ISA 530 Worked Example With the Calculator

How monetary unit sampling works under ISA 530 with a step-by-step worked example, sample size calculation, selection method, and evaluation of results.

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How to Design an Audit Sampling Plan

How to design an audit sampling plan under ISA 530, including sample size calculation, selection methods, MUS vs attribute sampling, and evaluation of results.

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ISA 530: Audit Sampling, Deviations and Misstatement Rules

How to design, execute, and evaluate audit samples under ISA 530, including sample size, selection methods, MUS, projecting misstatements, and common pitfalls.

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ISA 540 (Revised) Accounting Estimates: Auditing Assumptions, Data, and Methods

How to audit accounting estimates under ISA 540 (Revised). The three response approaches, estimation uncertainty spectrum, and common findings.

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How to Audit Estimates and Fair Values Under ISA 540: A Practical Guide

How to audit accounting estimates and fair values under ISA 540, including retrospective review, management bias indicators, and fair value procedures.

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ISA 540 (Revised): Auditing Accounting Estimates and Related Disclosures: Complete Guide

How to audit accounting estimates under ISA 540 (Revised), including the spectrum of inherent risk, management bias, and the three testing approaches.

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ISA 550 Related Party Transactions: Audit Procedures Beyond Inquiry

ISA 550 audit procedures for related party transactions beyond inquiry, covering identification, risk assessment, arm's-length testing, and disclosure.

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How to Audit Transfer Pricing Documentation Under ISA 550 and OECD BEPS Action 13

Auditing transfer pricing under ISA 550 and BEPS Action 13: functional analysis testing, benchmarking validation, and tax provisions.

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How to Audit Related Party Transactions Under ISA 550: A Practical Guide

How to audit related party transactions under ISA 550, including identification procedures, arm's length testing, IAS 24 disclosures, and common AFM findings.

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ISA 550: Related Party Audit Procedures and Assertions

How to identify and audit related party transactions under ISA 550, including risk assessment, arm's length assertions, dominant influence, and disclosure.

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ISA 560: Subsequent Events: Complete Guide

ISA 560 subsequent events explained: the three time periods, adjusting vs non-adjusting events, dual dating, and what to do when facts emerge after issuance.

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Going Concern Indicators: The ISA 570 Assessment Workflow

How to assess going concern under ISA 570, including financial, operating, and other indicators, management's assessment, and the audit procedures that follow.

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ISA 570 (Revised 2024): Going Concern Assessment

ISA 570 going concern guide: indicators of doubt, evaluating management's assessment, MURGC reporting, and ISA 570 (Revised 2024) changes effective Dec 2026.

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How to Evaluate Going Concern Indicators Under ISA 570

How to evaluate going concern indicators under ISA 570. Covers financial and operational criteria, worked examples, and documentation guidance for auditors.

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ISA 580 Management Rep Letter: Fraud Paragraphs Inspectors Check

ISA 580 management representation letter fraud paragraphs that inspectors check, with the four mandatory representations under ISA 240.63(a)-(d) explained.

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Management Representation Letter Template Under ISA 580

ISA 580 management representation letter template with required paragraphs, engagement-specific additions, timing rules, and management pushback scenarios.

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ISA 580: Written Representations: Complete Guide

How to handle written representations under ISA 580, including who signs the letter, what it must cover, and what happens when management refuses to sign.

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Using Work of Others

ISA 600–620 · 6 guides

Component Materiality in Group Audits: ISA 600 Allocation Methods

How to allocate component materiality in group audits under ISA 600, including proportional, risk-based, and hybrid methods with worked examples.

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Intercompany Eliminations: The Consolidation Audit Procedure Juniors Get Wrong

How to audit intercompany eliminations in a group consolidation under IFRS 10 and ISA 600, with the five common junior errors and a step-by-step procedure.

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How to Set Component Materiality for Group Audits Under ISA 600 (Revised)

How to set component materiality under ISA 600 (Revised), including the 60-85% allocation range, aggregation risk, and what inspectors check in your group file.

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ISA 600 (Revised): Group Audits and Component Identification

How ISA 600 (Revised) changes group audits: the risk-based approach, aggregation risk, component materiality, and two-way communication with component auditors.

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ISA 610 (Revised): Using Internal Audit in External Audits

When and how to use internal audit work under ISA 610, including evaluating objectivity and competence, direct assistance rules, and local prohibitions.

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ISA 620: Using an Auditor's Expert in the Audit

How to use an auditor's expert under ISA 620: evaluating competence and objectivity, setting up the agreement, and assessing the adequacy of the work.

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Audit Conclusions & Reporting

ISA 700–810 · 12 guides

ISA 700 Forming an Opinion: The Completion Checklist Before You Sign

How to form an audit opinion under ISA 700 with a pre-signing completion checklist covering evidence sufficiency, misstatement evaluation, and ISA 705 triggers.

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ISA 700 (Revised): Forming an Opinion and Reporting on Financial Statements: Complete Guide

How the auditor forms an opinion and structures the report under ISA 700 (Revised), including fair presentation vs. compliance frameworks and report elements.

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How to Write Key Audit Matters: ISA 701 Worked Examples by Industry

How to write key audit matters under ISA 701, with worked KAM examples for manufacturing, real estate, financial services, and technology engagements.

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Writing Key Audit Matters (KAMs): ISA 701 Examples

How to write key audit matters under ISA 701 that pass inspection. Covers selection, structure, worked examples for revenue and goodwill, and common pitfalls.

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ISA 701: Key Audit Matters in the Auditor's Report

ISA 701 explained: what Key Audit Matters (KAM) are, how to determine and communicate them, the ISA 705/706 relationship, and common KAM examples.

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ISA 705: Qualified, Adverse, and Disclaimer Opinions

ISA 705 (Revised) explained: qualified, adverse, and disclaimer opinions. When each applies, the material vs. pervasive distinction, and report modifications.

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ISA 706: Emphasis of Matter and Other Matter Paragraphs

When to use Emphasis of Matter vs Other Matter paragraphs under ISA 706 (Revised), including required conditions, report placement, and KAM interaction.

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ISA 710: Comparatives and Corresponding Figures in Audits

ISA 710 guide: corresponding figures vs comparative financial statements, prior-period misstatements, predecessor auditor reporting, and restatement procedures.

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ISA 720 (Revised): The Auditor's Responsibilities Relating to Other Information: Complete Guide

ISA 720 (Revised) guide: auditor's responsibilities for other information in annual reports, material inconsistency procedures, and European implementations.

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ISA 800: Auditing Under Special Purpose Frameworks

ISA 800 (Revised) explained: auditing special purpose financial statements covering tax basis, regulatory, and contractual frameworks.

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ISA 805: Audits of Single Financial Statements and Elements

ISA 805 (Revised) explained: auditing single financial statements and specific elements, including materiality and opinion interactions.

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ISA 810 (Revised): Engagements to Report on Summary Financial Statements: Complete Guide

ISA 810 (Revised) explained: reporting on summary financial statements, engagement acceptance, opinion wording, and worked examples.

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ISAE Standards

ISAE 3000+ · 15 guides

ISAE 3000 (Revised): Assurance Engagements Other Than Audits or Reviews: Complete Guide

How to perform non-audit assurance engagements under ISAE 3000 (Revised), including reasonable and limited assurance, ISSA 5000 transition, and EU examples.

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How to build an ISAE 3402 control matrix: the structure behind a defensible file

How to structure an ISAE 3402 control matrix with 28 columns across four blocks, using the 5-element control description test and IPE flagging.

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ISAE 3402 testing: why your sampling paragraph references are probably wrong

Why most ISAE 3402 files cite paragraphs A47-A54 for sampling when those cover modified opinions, and how to fix the reference.

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ISAE 3402 gap analysis: from deviation to opinion in four worked examples

How ISAE 3402 gap analysis works from deviation to opinion, with four worked examples showing severity, compensating controls, and qualification.

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CUECs: how to test them through the full audit period (not just year-end)

How to test complementary user entity controls through the full audit period, not just at year-end, and why this is the top PCAOB finding.

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ISAE 3402 Bridge Letter: The 3-Month Convention Nobody Can Find in the Standard

What an ISAE 3402 bridge letter must contain, why the 3-month gap convention exists, and how to avoid the gap period mistakes that trigger review comments.

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Key vs Non-Key Controls in ISAE 3402: The Classification That Triggers Every Review Comment

How to classify key vs non-key controls in ISAE 3402 with a defensible rationale, including the three-question test that prevents AFM review comments.

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ISAE 3402 vs SOC 2: Which Report Does Your Client Need?

ISAE 3402 covers European service organisations; SOC 2 targets US clients. Learn when each report applies, key structural differences, and how to decide.

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ISAE 3402 FAQ: IT Controls, Testing, and What Auditors Actually Check

ISAE 3402 FAQ: which IT controls to include, testing methods, sample sizes, Type I vs Type II, engagement timelines, and who signs.

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ISAE 3402 in Germany: WPK Requirements and IDW Standards

ISAE 3402 in Germany: WPK registration, IDW PS 951 requirements, BaFin expectations, and how German standards differ from the international framework.

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ISAE 3402 Explained: Type I, Type II and Key Requirements

ISAE 3402 guide: Type 1 and Type 2 reports on service organisation controls, carve-out vs inclusive method, user entity controls, and EU implementations.

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ISAE 3402 Bridge Letter: Purpose and Template

What an ISAE 3402 bridge letter must contain under ISA 402.12, when it's sufficient, how to evaluate it, and a worked example with template guidance.

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Carve-Out vs Inclusive Method in ISAE 3402

ISAE 3402 carve-out vs inclusive method for subservice organisations: when to use each, report differences, and audit scope impact.

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ISAE 3402 CUECs: Examples and User Entity Controls

ISAE 3402 CUECs explained: practical examples, how to test complementary user entity controls, and where they appear in Type II reports.

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ISAE 3410: Assurance on Greenhouse Gas Statements

ISAE 3410 guide for European auditors: GHG assurance engagements, emission scopes, scientific vs estimation uncertainty, and ISSA 5000.

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Dutch Audit Regulation

NBA, WTA, AFM, Wwft & more · 17 guides

Netherlands Audit Requirements: What Triggers a Statutory Audit for a Dutch BV

Dutch BV audit requirements by size class under Book 2 Title 9 BW: micro, small, medium, and large thresholds, plus KvK filing rules.

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Common AFM Findings on ISA 240 Fraud Documentation

Common AFM findings on ISA 240 fraud documentation from the January 2025 inspection report. 23 of 32 audits had deficiencies. Worked example and checklist.

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Common AFM Findings on ISA 540 Estimates

Common AFM and IFIAR findings on ISA 540 accounting estimates. Why estimates top every inspection deficiency list and how to fix the four most common failures.

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Common AFM Findings on ISA 570 Going Concern

The AFM flags ISA 570 going concern deficiencies in 38% of inspected files. The four recurring findings, why they persist, and how to fix your working papers.

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AFM Inspection Findings 2025: Common Deficiencies and What They Mean for Your File

Common AFM inspection findings in 2025 for non-PIE and PIE audit firms, with the EQCR, fraud risk, and consulting deficiencies that affect your file.

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How to Prepare for an NBA Quality Review at Your Dutch Audit Firm

How to prepare for an NBA quality review (toetsing) at your Dutch audit firm. Covers the orientation questionnaire, deficiencies, and what reviewers check.

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COS Standards: What Dutch Auditing Standards Mean for Your Practice

How COS standards (NV COS) work in Dutch auditing: the ISA mapping, Dutch-specific additions, standard series by engagement type, and practical file checks.

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WTA (Wet Toezicht Accountantsorganisaties) Explained: What the Audit Firms Supervision Act Means for Your Firm

WTA explained: what the Audit Firms Supervision Act requires from Dutch firms, AFM licence types, Bta quality rules, and non-compliance.

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What Dutch Audit Firms Need to Know About AFM Inspections

How AFM inspections work for Dutch audit firms: file selection, what inspectors check, common findings at non-PIE firms, and how to prepare your practice.

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Wwft Compliance for Dutch Audit Firms: What You Actually Need to Do

Wwft obligations for Dutch audit firms: client due diligence, unusual transaction reporting to the FIU-Nederland, SIRA requirements, and BFT enforcement.

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Dutch Audit Market: How the Non-Big 4 Sector Actually Works

How the Dutch non-Big 4 audit market works: reguliere vergunninghouders, AFM supervision, NBA review, and upcoming regulatory changes for mid-tier firms.

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Dutch BV Audit Thresholds: When Is an Audit Required?

Dutch BV statutory audit thresholds for 2024 and beyond: €7.5M assets, €15M turnover, 50 employees. How to apply the two-year test under BW2 article 2:396.

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Dutch Foundation (Stichting) Audit Requirements

When does a Dutch stichting need an audit? Size thresholds, the €6M turnover trigger under BW2 article 2:360, and what auditors check on these engagements.

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Dutch Tax Audit vs. Financial Statement Audit: When to Use Each and What Happens if You Confuse Them

Dutch tax audit (boekenonderzoek) vs financial statement audit under BW2 2:393: different objectives, materiality thresholds, and consequences explained.

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Wna (Wet op het Notarisambt) Audit Considerations: What Auditors Need to Know About Notarial Entities

Wna audit considerations for notarial entities: BFT reporting, derdengeldenrekening procedures, bewaringspositie calculation, and accountantsprotocol.

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SBR Reporting in the Netherlands: What Auditors Need to Know

How SBR reporting works for Dutch auditors: XBRL filing requirements, Standaard 3950N procedures, and what your firm needs before the first SBR filing.

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AFM Inspection Findings 2025: What Non-PIE Audit Firms Need to Know

AFM 2025 findings for non-PIE audit firms: fraud risk identification, independence threats, consultation rates, and root cause analysis benchmarks by firm size.

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Dutch Accounting Standards

BW2 & Dutch GAAP · 2 guides

Dutch GAAP (RJ) vs IFRS: Key Differences for Auditors

Key differences between Dutch GAAP (RJ) and IFRS that affect audit procedures, covering leases, revenue, financial instruments, and size-category exemptions.

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BW2 Title 9 Explained: Dutch Financial Reporting Requirements for Auditors

BW2 Title 9 explained for auditors: 2024 size thresholds, statutory audit requirements, filing deadlines, exemptions, and 403-verklaring rules under Dutch law.

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German Auditing Standards

IDW, WPK, HGB, BaFin & more · 8 guides

IDW Auditing Standards Overview for German Firms

IDW auditing standards explained: how IDW PS standards map to ISAs, where German law creates differences, and what the ISA [DE] transition means for your firm.

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WPK Requirements for German Auditors: What Every Wirtschaftsprüfer Must Comply With

WPK requirements for German auditors: CPD hours, quality assurance reviews, insurance obligations, and disciplinary rules under the WPO.

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German HGB vs IFRS: Key Differences for Auditors

Key differences between German HGB and IFRS that auditors face: goodwill amortisation, provisions, development costs, and financial instruments explained.

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StaRUG: German Restructuring Framework for Auditors

How StaRUG affects your audit: Section 1 crisis detection duties, going concern assessment under ISA 570, IDW S 11 thresholds, and what to document.

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BaFin Oversight: What German Audit Firms Must Know

How BaFin and APAS oversee German audit firms, including PIE inspection cycles, enforcement powers under the FISG, and what non-Big 4 firms must prepare for.

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German GmbH Audit Requirements & Thresholds

When a German GmbH needs a statutory audit under §316 HGB, the updated 2024 size thresholds under §267 HGB, and how the two-consecutive-year rule works.

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IDW PS 250 vs ISA 320: Materiality Comparison

IDW PS 250 n.F. vs ISA 320 materiality: key differences in terminology, benchmark guidance, qualitative factors, and documentation for cross-border audits.

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IDW PS 270: How to Apply Going Concern Requirements Under German Audit Standards

How to apply IDW PS 270 n.F. on a German HGB audit, covering the four scenarios, InsO forecast periods, Bestätigungsvermerk, and WPK review expectations.

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Quality Management Standards

ISQM 1 & 2 · 2 guides

ISQM 1: How to Implement Quality Management at a Non-Big 4 Audit Firm

How to implement ISQM 1 quality management at a mid-tier audit firm. Includes a worked example with risk register, practical checklist, and AFM findings.

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ISQM 2: How to Perform and Document Engagement Quality Reviews

How to perform engagement quality reviews under ISQM 2, including reviewer eligibility, required procedures, and a worked example for mid-tier audit firms.

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Review & Compilation Standards

ISRE & ISRS · 4 guides

ISRE 2400 (Revised): How to Perform a Review of Historical Financial Statements

How to plan and perform a review of historical financial statements under ISRE 2400 (Revised), with worked example and practical checklist for non-Big 4 firms.

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ISRE 2410: How to Perform an Interim Review as the Entity's Auditor

How to perform a review of interim financial information under ISRE 2410, including inquiry, analytical procedures, going concern, and reporting requirements.

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ISRS 4400 (Revised): How to Plan, Perform, and Report Agreed-Upon Procedures Engagements

How to plan, perform, and report an agreed-upon procedures engagement under ISRS 4400 (Revised), including a worked subsidy example and pitfalls to avoid.

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ISRS 4410 (Revised): How to Perform and Report a Compilation Engagement

How to perform a compilation engagement under ISRS 4410 (Revised), covering engagement terms, what to do when you spot errors, and how to write the report.

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SOC & Service Organisation Reporting

SOC 1 & 2 · 2 guides

SOC 1 vs ISAE 3402: Key Differences for European Auditors

SOC 1 vs ISAE 3402: how the two service organisation standards differ in scope, reporting, and regulatory acceptance, and which one your client needs.

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SOC 2 vs ISAE 3402: Mapping Controls Across Both Frameworks

SOC 2 vs ISAE 3402 compared: how these service organisation reports differ in purpose, scope, and control mapping, with a decision framework for user auditors.

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Audit Failure Case Studies

Steinhoff, Wirecard, Carillion & more · 5 guides

Steinhoff: Fraud Detection Failures in Group Audits

How Steinhoff's €6.5bn fraud exploited the gap between group and component auditors, and what ISA 600 (Revised) now requires for oversight and scoping.

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Patisserie Valerie: What Went Wrong in a Small Company Audit

How Grant Thornton missed £54M in overstated cash at Patisserie Valerie, and what ISA 240 and ISA 505 require you to do differently on cash and revenue.

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Carillion: Going Concern Failures and Auditor Responsibility

How KPMG's going concern failures on the Carillion audit led to the FRC's record £21M fine. ISA 570 lessons, worked example, and checklist for auditors.

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PwC / London Capital & Finance: What Every Auditor Should Learn

PwC was fined £19.9 million for the London Capital & Finance audit. The eight admitted ISA breaches and FCA reporting duty every auditor should know.

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Wirecard: The Audit Failure That Changed European Regulation

How EY's failure to verify €1.9 billion at Wirecard changed European audit regulation. Germany's FISG Act and ISA 505 confirmation lessons for auditors.

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Audit Quality & Inspection Findings

AFM, FRC, PCAOB, IFIAR & DORA · 10 guides

DORA ICT Risk: What Auditors Need to Check on Financial Sector Engagements

DORA ICT risk requirements for EU financial entity auditors: what to verify on bank, insurer, and payment institution engagements.

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Why Fraud Goes Undetected: Lessons from Enforcement Actions

Why fraud goes undetected in audits: lessons from FRC and FCA enforcement actions on LCF and Wirecard. Practical ISA 240 fraud risk procedures for auditors.

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Regulator Expectations vs Audit Reality: Closing the Gap

Where AFM, FRC, and PCAOB expectations diverge from what audit teams deliver. Four areas where the gap is widest, plus a worked example for closing it.

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Audit Quality Indicators: How to Build and Monitor an AQI Framework Under ISQM 1

How to select, measure, set thresholds for, and monitor audit quality indicators under ISQM 1.30-31, with a worked example AQI dashboard for mid-tier firms.

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Big 4 vs Mid-Tier vs Small Firm: How Audit Approaches Actually Differ

How Big 4, mid-tier, and small firm audit approaches differ in practice across staffing, methodology, and regulatory scrutiny under ISA 220 and ISQM 1.

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Top Audit Quality Findings Across European Regulators: What the AFM, FRC, and IFIAR Keep Flagging

Most common audit quality findings from European regulators (FRC, AFM, IFIAR), covering estimates, going concern, revenue, journals, and ISQM 1 fixes.

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PCAOB Inspection Findings: Most Common Deficiencies and How to Avoid Them

Most common PCAOB inspection deficiencies from the 2024 cycle covering revenue, ICFR, data reliability, and supervision findings, with procedures to avoid them.

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FRC Audit Quality Review 2025: What Went Wrong and What Your File Needs

FRC 2025 audit quality review findings for Tier 1, 2, and 3 firms, covering impairment, journals, going concern, and the gap between Big 4 and mid-tier.

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DORA ICT Risk for Financial Auditors: What You Need to Know for 2025 Engagements

How DORA (EU 2022/2554) changes ICT risk assessment on financial entity audits, with step-by-step file actions, a worked example, and the Article 58 review.

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FRC Audit Quality Review 2025: What the Results Mean for Non-Big 4 Firms

FRC Audit Quality Review 2025: 86% Tier 1 positive outcomes, widening gap to smaller firms, revenue and impairment top findings, SoQM maturity gaps flagged.

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Tax & Transfer Pricing

Pillar Two, BEPS, FATCA, DAC6/7 & more · 5 guides

Pillar Two Global Minimum Tax: What Auditors Must Know

How Pillar Two affects your audit: IAS 12 deferred tax exception, disclosure requirements, top-up tax recognition, and what reviewers check in practice.

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Transfer Pricing for Auditors: TP Documentation Testing

How to test transfer pricing documentation on audit under ISA 550 and ISA 540. Covers local file checks, benchmarking validation, and arm's length testing.

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FATCA and CRS: Audit Considerations

How to audit FATCA and CRS compliance at financial institutions, with due diligence procedures, reporting obligations, and a worked example for a Dutch bank.

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BEPS 2.0 Impact on Financial Statement Audits

How BEPS 2.0 Pillar Two affects your audit file under IAS 12, ISA 540, and ISA 250: deferred tax exception, top-up tax, and safe harbours.

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DAC6 and DAC7: EU Tax Reporting and Audit Implications

How DAC6 and DAC7 affect your audit file under ISA 250 and IAS 37, including reportable arrangement identification, penalty exposure, and documentation.

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Regulatory & Compliance

AML, GDPR, NIS2, EU AI Act & more · 5 guides

Sanctions Screening: Audit Firm Obligations

How audit firms meet sanctions screening obligations under the Wwft and Sanctions Act 1977: client acceptance, ongoing monitoring, and BFT expectations.

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GDPR Implications for Audit Data Handling

How GDPR applies to audit firms as data controllers: legal basis for processing, retention vs ISA 230, data subject rights, and engagement letter clauses.

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EU Anti-Money Laundering Directive: Auditor Obligations

What EU anti-money laundering rules require from statutory auditors: Wwft reporting duties, suspicious transaction reporting, ISA 250, and record-keeping.

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NIS2 Directive: Cybersecurity Audit Considerations for Non-Big 4 Firms

How the NIS2 Directive affects your financial statement audit: IT general controls, incident reporting, supply chain risk, and fine exposure under ISA 315.

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EU AI Act: Implications for Audit Technology

How the EU AI Act's risk classifications affect audit tools and client AI systems, covering ISA 500 evidence, ISA 540 estimates, and ISA 220 quality.

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Industry-Specific Audit Guidance

Construction, Crypto, Healthcare, SaaS & more · 11 guides

Audit Considerations for Construction Companies

How to audit construction companies under IFRS 15 and IAS 37: cost-to-complete testing, onerous contract assessment, and regulator findings for mid-tier firms.

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Audit Considerations for Crypto Assets: How to Assess, Test, and Document Digital Asset Holdings

How to audit crypto asset holdings under IAS 38, IAS 2, and IFRS 13, with worked examples covering existence, valuation, and classification for non-Big 4 firms.

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Audit Considerations for Healthcare Entities

How to audit healthcare entities under IFRS 15 and IAS 37, covering retrospective settlement testing, malpractice provisions, and regulatory compliance.

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Audit Considerations for SaaS Companies: Revenue Recognition, Capitalised Costs, and Key Judgments

How to audit SaaS companies under IFRS 15, IAS 38, and ISA 540, covering revenue recognition, capitalised development costs, and contract modifications.

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Audit Considerations for Real Estate Entities Under ISA and IFRS

How to audit real estate entities under ISA 540, IAS 40, and IFRS 13. Covers fair value testing, rental income, covenant analysis, and a worked example.

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Audit Considerations for Non-Profit Organisations Under ISA and Dutch GAAP

How to audit non-profit organisations under ISA 315, ISA 240, and RJ 640. Grant income, restricted funds, fraud risk, and worked example for a Dutch foundation.

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Materiality Calculator: Manufacturing vs Banking vs Retail

How to select the right materiality benchmark for manufacturing, banking, and retail entities under ISA 320, with accepted ranges and worked examples.

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Audit Considerations for Energy and Mining Entities

Auditing energy and mining clients: IFRS 6, IAS 36, IAS 37, and ISA 540 considerations with worked examples for impairment and provisions.

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Audit Considerations for Agriculture Entities

How to audit biological assets under IAS 41: fair value measurement, harvest-point recognition, bearer plants, and worked examples for European agri-entities.

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Audit Considerations for Government Entities

How to audit government entities under ISA 800, ISA 250, and ISA 260, covering compliance frameworks, budgetary accounting, and regulatory review documentation.

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Audit Considerations for Insurance Companies

How to audit insurance companies under IFRS 17 and ISA 540, covering actuarial estimates, claims provisions, reinsurance, and premium deficiency testing.

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Audit Technology & Practice

Tools, AI & Data Analytics · 5 guides

Best Audit Tools for Non-Big 4 Firms in 2026

The audit tools that work for non-Big 4 firms in 2026, with real pricing, a four-layer stack model, and a worked example for a 12-person Dutch practice.

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Audit Software for Non-Big 4 Firms: Alternatives to CaseWare

CaseWare alternatives for non-Big 4 European audit firms in 2026: real pricing, ISA template depth, and a worked example for the switch vs supplement decision.

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AI in Audit: What’s Real and What’s Hype

What AI audit tools actually do today versus vendor claims. Practical assessment for non-Big 4 firms evaluating AI adoption under ISA 500 and ISA 520.

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How Cloud Accounting Changes Your Audit Procedures

How cloud accounting platforms like Xero and Exact Online change your audit procedures under ISA 315, ISA 500, and ISA 402. Practical steps for non-Big 4 firms.

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Data Analytics in Audit: Practical Applications for Non-Big 4 Firms

How to apply data analytics in audit under ISA 520 and ISA 500, with four practical techniques, a worked example, and documentation for non-Big 4 firms.

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Remote Auditing, ESG, Talent & more · 7 guides

Remote Auditing Best Practices Post-COVID

How to run remote audit procedures that satisfy ISA 500 evidence requirements, including inventory observation, confirmations, and document inspection.

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ESG Assurance Market Growth: Opportunities for Small Firms

How the CSRD Omnibus, ISSA 5000, and the ESG assurance market create new revenue opportunities for non-Big 4 European audit firms from 2027.

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Integrated Reporting Framework for Auditors

How the Integrated Reporting Framework affects audit engagements: the six capitals, connectivity, and where ISA requirements intersect with ISSA 5000.

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The Future of the Auditor's Report

How the auditor's report changes from 2027 under ISA 570 (Revised 2024) and ISA 240 (Revised): going concern conclusions, fraud KAMs, and FRC proposals.

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Audit Profession Talent Shortage: The Data, Why It Hits Mid-Tier Firms Hardest, and What Actually Works

Audit profession talent shortage: 300K+ accountants left since 2019, CPA candidates down 30%, and 40% of Dutch firms short-staffed. Mid-tier solutions.

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Audit Committee Expectations: What Auditors Should Know

What audit committees expect from external auditors under ISA 260 and ISA 265, with practical guidance on communication timing and building the relationship.

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Continuous Auditing and Continuous Monitoring Explained: What External Auditors Need to Know

Continuous auditing vs continuous monitoring: who owns each, how they differ, where they overlap, and what external auditors should assess under ISA 315.

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Career & Professional Development

RA Exam, Career Guides, Salary & Qualifications · 13 guides

RA Exam Netherlands: How the Qualification Works and How to Pass It

How to become a Registeraccountant (RA) in the Netherlands. The full qualification path from MSc through post-master, praktijkopleiding, and the slotexamen.

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RA Exam Study Plan: Month-by-Month Guide for Working Auditors in the Netherlands

A month-by-month RA exam study plan for working auditors in the Netherlands, covering the theoretical modules, practical experience log, and final assessment.

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How to Transition from Big 4 to Mid-Tier or Small Firm: Complete Guide

How to move from a Big 4 to a mid-tier or small audit practice in Europe. Real salary data and effective hourly rate comparisons with a worked example.

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Audit Manager vs Senior: What Changes When You Get Promoted

What changes when you move from senior to audit manager, covering file ownership, client relationships, team leadership, and the key skills gap.

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Common First-Year Auditor Mistakes and How to Avoid Them

The most common mistakes first-year auditors make on real engagements, with specific fixes for documentation, testing, client communication and time management.

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Audit Senior Survival Guide: First 90 Days

First 90 days as audit senior: how to run planning, manage staff, handle review notes, and keep your files inspection-ready under ISA 300 and ISA 220.

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Essential Excel Skills Every Auditor Needs

Excel skills for auditors: VLOOKUP, pivot tables, conditional formatting, and data validation techniques for ISA 520 analytical procedures and ISA 530 sampling.

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How to Prepare for Your First Busy Season

How to prepare for your first audit busy season: what to expect, how to organise your files, manage your energy, and avoid the mistakes that sink first-years.

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Audit Interview Questions: Technical & Behavioural

Audit interview questions with worked answers covering ISA technical knowledge, behavioural scenarios, answer structure, and what mid-tier European firms ask.

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Data Analytics Skills for Auditors: Where to Start

Data analytics skills for auditors: four capabilities that produce real audit evidence under ISA 500 and ISA 520, starting from zero, with a 90-day plan.

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How to Build an Audit Career Outside the Big 4

How to build an audit career outside the Big 4: mid-tier career paths, RA qualification strategy, specialisation areas, and salary benchmarks for auditors.

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CPA vs RA vs WP vs ACA: Global Audit Qualification Comparison

CPA vs RA vs WP vs ACA compared: which audit qualification grants signing rights where, study timelines, costs, mutual recognition, and how to choose.

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Salary Benchmarks for Auditors in Europe 2026

Auditor salary benchmarks for Europe 2026. Actual figures by country and firm type from Robert Half, Hays, Glassdoor, and Leonid Group with negotiation tips.

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Standards & Regulatory Updates

IAASB, IASB & ISA Trackers · 3 guides

ISA Effective Date Tracker: All Current and Upcoming Standards

ISA effective date tracker covering ISA 240 Revised, ISA 570 Revised, and ISSA 5000, all effective 15 December 2026. Worked example for non-Big 4 firms.

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IAASB Standards Update [2025]: What's New

The IAASB 2025 standards update covers ISA 570 (Revised 2024), ISA 240 (Revised), ISSA 5000, and narrow-scope amendments, all effective 15 December 2026.

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IASB Standards Update [2025]: What's New

IASB 2025 standards update: IFRS 18 replaces IAS 1 from January 2027, IAS 21 and IFRS 19 amendments, IAS 37 proposals, and new climate uncertainty examples.

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Market Data & Benchmarks

Audit Fees, Market Reports & Trends · 2 guides

European Audit Market Report [2025]: Fees, Firms & Trends

European audit market data for 2025: Big Four vs mid-tier fee splits, CSRD assurance costs, country benchmarks, and what non-Big 4 firms should plan for.

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Audit Fee Benchmarks by Industry [2025]

Audit fee benchmarks by industry for 2025: sector-level data from the FRC and IAA, fee-to-revenue ratios by sector, and how to use them in fee proposals.

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IFRS First Adoption & Entity Transactions

IFRS 1–5 · 4 guides

How to Audit a First-Time IFRS Adoption Under IFRS 1

How to audit first-time IFRS adoption under IFRS 1, including transition adjustments, mandatory exceptions, optional exemptions, and reconciliation disclosures.

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How to Audit Share-Based Payment Under IFRS 2

How to audit share-based payment under IFRS 2, including option pricing model inputs, vesting period expense, forfeitures, and disclosure requirements.

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How to Audit Business Combinations Under IFRS 3

How to audit business combinations under IFRS 3: purchase price allocation, intangible asset identification, contingent consideration, provisional accounting

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How to Audit Non-current Assets Held for Sale Under IFRS 5

How to audit held-for-sale assets under IFRS 5: the six classification criteria, measurement at reclassification, disposal groups, and discontinued operations.

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IFRS Financial Instruments

IFRS 7 & 9 · 4 guides

How to Document IFRS 7 Financial Instruments Disclosures on a Real Engagement

How to document IFRS 7 financial instruments disclosures, including credit risk, liquidity risk, and fair value hierarchy requirements auditors actually check.

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IFRS 9 Expected Credit Losses: How to Audit the Provision Matrix

How to audit the IFRS 9 provision matrix, including historical loss rates, forward-looking adjustments, staging criteria, and ISA 540 estimate procedures.

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How to Calculate and Document Expected Credit Losses Under IFRS 9

How to calculate expected credit losses under IFRS 9, including provision matrices, forward-looking adjustments, and the documentation auditors verify.

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How to Audit Hedge Accounting Under IFRS 9

How to audit hedge accounting under IFRS 9, covering qualifying criteria, hedge documentation, ongoing effectiveness, and ineffectiveness measurement.

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IFRS Group Accounting & Fair Value

IFRS 10–13 · 4 guides

How to Audit Consolidated Financial Statements Under IFRS 10

How to audit consolidated financial statements under IFRS 10: control assessment, de facto control, consolidation procedures, and intercompany eliminations.

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How to Audit Joint Arrangements Under IFRS 11

How to audit joint arrangements under IFRS 11: classification as joint operation or joint venture, the shareholders' agreement test, line-by-line accounting.

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How to Audit Disclosures of Interests in Other Entities Under IFRS 12

How to audit IFRS 12 disclosures: significant judgments, summarised financial information for associates and joint ventures, NCI, and structured entities.

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How to Audit Fair Value Measurements Under IFRS 13

How to audit fair value measurements under IFRS 13: hierarchy classification, Level 2 and Level 3 inputs, and the valuation documentation reviewers check.

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IFRS Revenue & Leases

IFRS 15 & 16 · 7 guides

IFRS 15 Revenue Recognition: The 5-Step Model With Audit Procedures at Each Step

How to audit IFRS 15 revenue recognition through the 5-step model, with audit procedures at each step and common errors auditors catch on engagements.

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How to Audit Revenue Recognition Under IFRS 15: A Practical Guide

How to audit revenue recognition under IFRS 15, including performance obligation testing, transaction price allocation, and the ISA 240 fraud presumption.

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How to Audit Revenue Recognition Under IFRS 15

How to audit revenue recognition under IFRS 15, including the five-step model, performance obligation identification, and variable consideration auditors check.

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IFRS 15 Five-Step Revenue Recognition Model: Worked Examples for Auditors

How to audit revenue recognition under the IFRS 15 five-step model with worked examples, allocation calculations, and documentation guidance for each step.

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IFRS 16 Leases: Implementation Guide for Auditors

How to audit lease accounting under IFRS 16 with worked examples covering right-of-use assets, lease liabilities, discount rates, and modification accounting.

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IFRS 16 Lease Modifications: How to Account for and Audit Them

How to account for lease modifications under IFRS 16.44–46, with the two-condition test, remeasurement mechanics, and a worked example from Dekker B.V.

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IFRS 16 Sale and Leaseback Transactions: How to Account for and Audit Them

How to account for and audit sale and leaseback transactions under IFRS 16.98–103, with the IFRS 15 transfer test, gain-split formula, and a worked example.

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IFRS Presentation & New Standards

IFRS 17 & 18 · 2 guides

IFRS 17 Insurance Contracts: What Auditors at Non-Big 4 Firms Actually Need to Know

How to audit insurance contracts under IFRS 17, covering the general measurement model, premium allocation approach, and a captive insurer worked example.

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IFRS 18 Presentation and Disclosure in Financial Statements: What Changes from IAS 1 and What Auditors Need to Do

What IFRS 18 changes from IAS 1 for the income statement, covering the five categories, mandatory subtotals, MPM disclosure requirements, and a worked example.

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IFRS Cross-Standard Guides

Comparative · 4 guides

IFRS for SMEs vs Full IFRS: Key Differences That Affect the Audit

Key differences between full IFRS and the IFRS for SMEs Accounting Standard, including leases, revenue, financial instruments, and what auditors must check.

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IFRS Taxonomy 2026: Why There Is No Update and What That Means for Your ESEF Filing

No IFRS Taxonomy 2026 exists. The 2025 IFRS Accounting Taxonomy carries forward. What auditors need to check for ESEF filings in the 2026 reporting season.

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IFRS vs US GAAP: The Differences That Actually Matter on a European Audit Engagement

Key IFRS vs US GAAP differences that affect European audit engagements, covering inventory, impairment reversal, leases, development costs, and IFRS 18.

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IAS 1 vs IFRS 18: What Changes for Financial Statement Presentation

What IFRS 18 changes from IAS 1 for financial statement presentation, including the five P&L categories, mandatory operating profit, and MPM disclosures.

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IAS Presentation & Policies

IAS 1 & 8 · 2 guides

How to Audit the Presentation of Financial Statements Under IAS 1

How to audit financial statement presentation under IAS 1, with procedures for classification, disaggregation, the 2021 policy amendments, and findings.

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How to Audit Accounting Policy Changes, Estimate Changes, and Prior Period Errors Under IAS 8

How to audit accounting policy changes, estimate revisions, prior period error corrections under IAS 8, and the classification test that reviewers check first.

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IAS Assets & Inventories

IAS 2, 16, 36 & 38 · 5 guides

How to Audit Inventory Valuation and Disclosure Under IAS 2

How to audit inventory under IAS 2. Cost build-up testing, overhead allocation at normal capacity, NRV assessment, cost formulas, and a worked example.

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How to Audit Property, Plant and Equipment Under IAS 16

How to audit property, plant and equipment under IAS 16. Covers componentisation, useful life estimates, revaluation model, and what AFM reviewers check.

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IAS 36 Impairment Testing: Calculating Value in Use Step by Step

IAS 36 value in use: cash flow projections, discount rates, terminal value, and what auditors test in management's impairment model.

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How to Audit Impairment of Assets Under IAS 36

How to audit impairment of assets under IAS 36, including CGU identification, value in use, discount rates, goodwill allocation, and common inspection findings.

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How to Audit Intangible Assets Under IAS 38

How to audit intangible assets under IAS 38, including identifiability, development cost capitalisation, useful life assessment, and the amortisation trap.

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IAS Financial Reporting

IAS 7, 10 & 33 · 3 guides

How to Audit the Statement of Cash Flows Under IAS 7

How to audit the statement of cash flows under IAS 7, including classification testing, non-cash transactions, reconciliation procedures, and worked examples.

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How to Identify and Document Events After the Reporting Period Under IAS 10

How to classify and document events after the reporting period under IAS 10. Covers adjusting vs. non-adjusting decisions and going concern reassessment.

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How to Audit Earnings Per Share Under IAS 33

How to audit basic and diluted earnings per share under IAS 33, including anti-dilution testing, bonus issues, convertible instruments, and review traps.

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IAS Tax & Provisions

IAS 12 & 37 · 4 guides

IAS 12 Deferred Tax: Temporary vs Permanent Differences With Worked Example

How to identify temporary versus permanent differences under IAS 12, calculate deferred tax, and audit DTA recoverability with a step-by-step worked example.

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Pillar Two: Audit Implications and How to Test the GloBE Calculation

Pillar Two audit implications: IAS 12 amendments, safe harbour testing, GloBE calculation procedures, and Dutch Wet minimumbelasting 2024.

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How to Calculate and Document Deferred Tax Under IAS 12

How to calculate and document deferred tax under IAS 12. Covers temporary differences, DTA recoverability, rate changes, and a worked example with IFRS 16.

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How to Audit Provisions, Contingent Liabilities and Contingent Assets Under IAS 37

How to audit provisions under IAS 37, including the recognition test, measurement methods, onerous contracts, and the contingent liability disclosure trap.

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IAS Employee Benefits & Foreign Operations

IAS 19, 21 & 24 · 3 guides

How to Audit Pension Obligations Under IAS 19 Employee Benefits

How to audit defined benefit pension obligations under IAS 19, including actuarial assumptions, the actuary's report, discount rates, and reviewer focus areas.

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How to Apply and Audit Foreign Currency Translation Under IAS 21

How to apply IAS 21 for foreign currency transactions and translation of foreign operations, with the functional currency test auditors miss most.

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How to Audit Related Party Disclosures Under IAS 24 and ISA 550

How to audit related party disclosures under IAS 24 and ISA 550, including identification procedures, arm's length testing, and what inspectors flag most.

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IAS Revenue & Borrowing Costs

IAS 20 & 23 · 2 guides

How to Account for and Audit Government Grants Under IAS 20

How to account for and audit government grants under IAS 20, including recognition timing, presentation choices, and the worked example auditors actually need.

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How to Audit Borrowing Cost Capitalisation Under IAS 23

How to audit borrowing cost capitalisation under IAS 23, including the capitalisation rate calculation, suspension and cessation rules, and worked examples.

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IAS Consolidation & Associates

IAS 27 & 28 · 2 guides

How to Account for Investments in Separate Financial Statements Under IAS 27

How to account for investments in separate financial statements under IAS 27, covering the cost vs equity method election, impairment triggers, and disclosures.

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How to Apply the Equity Method for Associates and Joint Ventures Under IAS 28

How to apply the equity method for associates and joint ventures under IAS 28, covering the roll-forward, unrealised profit elimination, and impairment.

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CSRD Implementation

CSRD · 14 guides

CSRD Limited Assurance: What ISSA 5000 Requires From Auditors

What ISSA 5000 requires from auditors performing CSRD limited assurance on sustainability reports. Procedures, evidence, and timeline.

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CSRD Compliance 2026: What Auditors Need to Know

CSRD compliance for auditors in 2026: revised scope after Omnibus I, limited assurance requirements under ESRS, and what non-Big 4 firms need to do now.

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ESRS Double Materiality: Step-by-Step Methodology

How to conduct a double materiality assessment under ESRS 1: the four-step process, IRO identification, scoring methodology, and assurance documentation.

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CSRD in Ireland: What Auditors Must Know

CSRD in Ireland for auditors: S.I. 336/2024 transposition, IAASA supervision, assurance requirements under ESRS, scope anomalies, and what Omnibus I changes.

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CSRD in Austria: Implementation Guide for Auditors

CSRD implementation in Austria: the NaBeG explained for auditors, Wave 1 and Wave 2 timelines, FMA/KSW oversight, assurance requirements, and Omnibus I effects.

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CSRD in Belgium: Requirements for Audit Firms

CSRD in Belgium: audit firm obligations under the 2024 transposition law, IBR/IRE assurance standards, three-wave timeline, and Omnibus I scope changes.

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CSRD in France: Timeline & Obligations for Auditors

CSRD in France: phased reporting timeline from 2025 to 2029, H2A assurance requirements, Omnibus I scope changes, and what audit firms need to prepare now.

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CSRD in Germany: Requirements for Auditors

CSRD for auditors in Germany: sustainability auditor registration, 40-hour training, limited assurance scope, and the delayed CSRD-UmsG.

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CSRD in Italy: Auditor Obligations

CSRD in Italy: D.Lgs. 125/2024 requirements, sustainability auditor registration, Consob sanctions, and the Omnibus I impact.

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CSRD in the Netherlands: Timeline & Requirements

CSRD timeline for the Netherlands: which companies report, when, and what Dutch auditors need to know after Omnibus I.

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CSRD in Spain: Requirements & Timeline

CSRD in Spain: LEIS timeline, Royal Decree 214/2025 reporting impact, CNMV and ICAC expectations, and the revised timeline after Omnibus I.

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CSRD Limited Assurance vs Reasonable Assurance

CSRD limited vs reasonable assurance: what each requires, how procedures differ, and what the Omnibus I mandate removal means for audit firms.

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CSRD Assurance: When to Use ISAE 3000 and When to Use ISAE 3410

When to apply ISAE 3000 versus ISAE 3410 for CSRD sustainability assurance, including scope, procedures, reporting differences, and the transition to ISSA 5000.

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CSRD Implementation Tracker: Country-by-Country Status

CSRD implementation tracker: country-by-country transposition status, Omnibus I timeline for Waves 1-3, assurance requirements and national choices. March 2026.

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ESRS Environmental Standards

ESRS E1–E5 · 5 guides

ESRS E1 Climate Change: What Auditors and Preparers Need to Get Right

ESRS E1 climate change: what the July 2025 amendments changed across the 11 disclosure requirements and how to prepare your file for limited assurance.

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ESRS E2 Pollution Disclosure Requirements: What Your Client's File Needs

ESRS E2 pollution disclosure under the CSRD: six disclosure requirements for emissions to air, water and soil, substances of concern, and file documentation.

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How to Report Under ESRS E3: Water and Marine Resources for Non-Big 4 Auditors

How to report under ESRS E3 on water resources: materiality assessment, the four disclosure requirements, metrics, and what changed under the 2025 Omnibus.

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How to Report Under ESRS E4: Biodiversity and Ecosystems for Non-Big 4 Auditors

Practical guide to ESRS E4 biodiversity reporting, including the LEAP approach, site-level metrics, all five disclosure requirements, and Omnibus amendments.

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How to Report Resource Use and Circular Economy Under ESRS E5

How to report resource use and circular economy under ESRS E5, covering materiality assessment, resource inflows, outflows, waste data, and worked examples.

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ESRS Social & Governance Standards

ESRS S1–S4 & G1 · 5 guides

How to Report on Your Client’s Own Workforce Under ESRS S1

How to report own workforce disclosures under ESRS S1, covering all 17 disclosure requirements from policies to gender pay gap, with practical worked examples.

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How to Report Under ESRS G1: Business Conduct for Non-Big 4 Auditors

How to report business conduct under ESRS G1, including anti-corruption, whistleblower protection, political influence, payment practices, and Omnibus changes.

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ESRS S2 Workers in the Value Chain: How to Document the File When Labour Risks Sit Outside Your Client’s Payroll

ESRS S2 value chain workers under the CSRD: disclosure requirements for supplier labour risks, grievance mechanisms, incident reporting, and assurance files.

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ESRS S3 Affected Communities: What the Standard Actually Requires and How to Build the File

ESRS S3 affected communities under the CSRD: four disclosure requirements for community impacts, indigenous peoples' rights, grievance channels, and assurance.

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How to Report Under ESRS S4: Consumers and End-Users for Non-Big 4 Auditors

How to assess and report consumer impacts under ESRS S4, including product safety, data privacy, grievance mechanisms, and December 2025 Omnibus changes.

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ESRS Cross-Cutting

ESRS IRO · 1 guide

ESRS IRO Assessment Framework: How to Identify Impacts, Risks, and Opportunities

How to conduct the ESRS IRO assessment under ESRS 1 and ESRS 2 IRO-1, including scoring criteria, materiality thresholds, and a worked example for auditors.*

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EU Taxonomy

EU Taxonomy · 1 guide

EU Taxonomy Alignment: What Auditors Need to Verify

What auditors verify for EU Taxonomy alignment: eligibility mapping, technical screening criteria, DNSH assessment, KPI calculations, and double-counting.

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