First-Year Audit Engagement Checklist

Key Takeaways

ISA 510.6 requires the auditor to obtain sufficient appropriate evidence about opening balances — the predecessor’s audited financial statements alone are not sufficient evidence. Independent procedures are required.
ISA 510.8 requires management’s authorisation to contact the predecessor auditor. If management refuses, ISA 510.9 treats that as a factor in deciding whether to accept the engagement.
A first-year engagement requires 20% to 30% more hours than a comparable recurring engagement. The additional time covers predecessor contact, opening balance work, and extended risk assessment.
Assign your most experienced team member to first-year planning. The risk assessment sets the direction for the entire engagement, and on a first-year there is no cumulative knowledge to fall back on.

Your firm just won a new audit client. The partner signed the engagement letter, the fee was agreed, and the prior year file is sitting on a USB stick from the predecessor auditor. The instinct is to start where any audit starts: materiality, risk assessment, the planning memo. But a first-year engagement has at least six procedures that don’t exist on a recurring audit, and missing any of them creates a file deficiency that’s difficult to fix at completion.

A first-year audit engagement requires the auditor to obtain sufficient appropriate evidence about opening balances under ISA 510.6, communicate with the predecessor auditor under ISA 510.8, evaluate whether accounting policies are consistently applied between periods, and perform specific risk assessment procedures that account for the team’s lack of cumulative audit knowledge about the client.

What makes a first-year engagement different

On a recurring engagement, you carry forward cumulative audit knowledge. You know the client’s systems, you know where the risks are, you know which management representations turned out to be reliable last year and which didn’t. You have a prior-year file with tested balances. None of that exists on a first-year engagement.

ISA 510.3 defines the auditor’s objective clearly: obtain sufficient appropriate audit evidence about whether opening balances contain misstatements that materially affect the current period’s financial statements. Opening balances aren’t just prior-year closing numbers. They include matters requiring disclosure that existed at the beginning of the period (contingent liabilities, commitments, related party relationships). If the prior-year auditor qualified their opinion, the reason for that qualification may still affect the current period.

ISA 300.13 adds a first-year-specific planning requirement. The engagement partner must undertake additional activities before starting the audit, including establishing communication with the predecessor auditor (where one exists) and any additional procedures required by the firm’s quality management system under ISQM 1. Your firm’s quality manual likely has a section on acceptance procedures for new engagements. Check it before fieldwork. The EQCR or engagement acceptance review may require partner-level sign-off before substantive work begins.

The practical consequence is that a first-year engagement takes more hours per revenue euro than a recurring audit. Budget accordingly. The additional procedures (predecessor contact, opening balance work, extended understanding of the client) aren’t overhead. They’re the audit.

Communicating with the predecessor auditor

ISA 510.8 states that where the prior period was audited, the auditor shall request management’s authorisation to contact the predecessor. If management refuses, ISA 510.9 treats that as a factor the auditor should consider in deciding whether to accept the engagement. In practice, refusals are rare, but document the request and the response either way.

Once you have authorisation, contact the predecessor in writing. Request access to their working papers (or at minimum, a meeting to review them), and specifically ask about the following:

The reason the audit relationship ended (resignation, non-renewal, dismissal)
Any disagreements with management on accounting treatments
Any material matters communicated to those charged with governance under ISA 260
Any fraud or suspected fraud identified during their tenure
Whether they identified any scope limitations

Not every predecessor auditor will cooperate fully. Some firms have policies restricting access to working papers. Others will allow a review meeting but not copy access. Whatever access you obtain, document it. Whatever access you don’t obtain, document that too, along with the alternative procedures you performed to compensate (ISA 510.10).

Two things to watch for in the predecessor’s file

First, areas where the predecessor obtained evidence through management representations alone, without corroborating evidence. Those areas need fresh testing in your opening balance work because management representations from the predecessor’s engagement don’t carry forward to yours. Second, any qualification or emphasis of matter in the predecessor’s report. If the predecessor qualified on inventory valuation, you can’t carry forward last year’s inventory balance as your opening position. You need independent evidence that the opening inventory is not materially misstated.

What if there was no predecessor auditor?

For a first-time audit (the client was never audited before), the opening balance procedures are more extensive. You don’t have a predecessor to contact. ISA 510.6(b) requires alternative procedures, and for balance sheet items this often means substantive testing of the opening balances themselves. For a first-time audit of a company with €25M in fixed assets, you may need to verify the historical cost and accumulated depreciation of material asset classes back to source documentation. This is time-consuming and must be budgeted separately.

Obtaining evidence on opening balances

Opening balance work isn’t about re-auditing the prior year. It’s about confirming that the numbers you’re starting from don’t contain misstatements that will flow into the current period.

ISA 510.6 distinguishes between current assets and liabilities (where evidence about the opening balance is typically obtained through current-period procedures) and non-current items (where you may need to examine the predecessor’s working papers or perform additional procedures). For trade receivables, the fact that prior-year receivables were collected in the current period provides evidence that the opening balance was not materially overstated. For fixed assets, you need to verify that the opening balance reflects properly recorded historical cost and accumulated depreciation.

Start with the prior-year audited financial statements. Compare every line item to your opening trial balance. If any line differs from the prior-year audited figures, investigate the difference. It may be a reclassification, a prior-period adjustment, or an error. Document each difference and its resolution.

Revenue and expense accounts

Opening balances are zero by definition (the accounts reset at the start of the period). But prior-year revenue recognition and expense accruals can create misstatements in the current period. If the prior auditor accepted a revenue cut-off position that was aggressive, the effect carries into your period. Review the predecessor’s cut-off testing (if accessible) or perform your own cut-off procedures on transactions around the prior year-end.

Equity

Trace the opening balance of each equity component to the prior-year audited financial statements and to the client’s shareholder register, board resolutions, articles of association, and KVK registration. Any movements in equity (dividends declared, capital contributions, prior-period adjustments) need supporting documentation.

Provisions and estimates

The opening balance work is where you spend the most judgment. A provision for warranty claims of €800,000 carried forward from the prior year needs evaluation: was the methodology reasonable, has the provision settled close to the estimated amount, and are the assumptions still valid for the current period? ISA 540 applies to estimates in the current period, but the opening balance of an estimate is your starting point. If you can’t verify it, you may need to report a scope limitation under ISA 510.11.

Accounting policies

ISA 510.6(c) requires you to evaluate whether the accounting policies reflected in the opening balances have been consistently applied in the current period. If the client changed its depreciation method, its revenue recognition policy, or its provisioning methodology between years, you need to evaluate whether the change was properly accounted for under IAS 8 and whether the opening balances were restated as required.

Compare the accounting policy notes in the prior-year financial statements to the draft current-year policies. Flag any differences for discussion with management. If the client adopted a new standard in the current period (IFRS 16 leases, for instance, adopted late by a smaller client), the transition adjustments are part of your opening balance work.

Reconcile first, investigate second

Compare every line item of the prior-year audited financial statements to your opening trial balance before doing anything else. If any line differs, investigate the difference. This reconciliation catches reclassifications, prior-period adjustments, and errors that would otherwise surface unexpectedly during fieldwork.

First-year risk assessment: filling the knowledge gap

ISA 315.13 requires the auditor to obtain an understanding of the client and its environment. On a recurring engagement, much of this understanding carries forward. On a first-year engagement, you build it from scratch.

The most efficient approach is to structure your first-year risk assessment around four information sources that compensate for the missing cumulative knowledge: the predecessor auditor’s file (already covered above), the client’s own documentation, external sources, and your own analytical procedures.

From the client

Request the articles of association, shareholders’ register, organisational chart, most recent management accounts, board minutes for the current and prior year, any internal audit reports, and the quality management system documentation if the client is in a regulated industry. Read the board minutes cover to cover. On a recurring engagement, you might skim them. On a first-year, they’re your primary window into management’s decision-making and risk appetite.

From external sources

Check the KVK (Chamber of Commerce) extract for any registered charges, changes in directors, or filed annual accounts. Review any industry reports relevant to the client’s sector. For clients with public debt, check the most recent credit rating. For clients in regulated sectors, check the relevant regulator’s register for any sanctions, warnings, or licence conditions.

From analytical procedures

Run analytical procedures on two years of financial data (the prior-year audited figures and the current-period management accounts). Use the analytical review tool to compute ratios and trend analysis. On a first-year engagement, analytics serve a dual purpose: they inform risk assessment under ISA 315 and they help you identify unusual items in the opening balances.

Related party transactions

Pay particular attention to related party transactions. ISA 550.13 requires the auditor to identify related parties, and on a first-year engagement you have no baseline. Request the related party list from management, cross-reference it to the KVK extract (for shared directors or shareholders), and review the prior-year disclosures. If the predecessor’s file identified related parties that management’s list doesn’t include, ask why.

Assign experience to first-year planning

Assign your most experienced team member to the first-year planning work, not the most junior. The first-year planning file sets the direction for the entire engagement. If the risk assessment misses a significant risk because the person doing it didn’t know what to look for, every downstream procedure is built on a flawed foundation.

Worked example: Jansen Vastgoed B.V.

Client: Jansen Vastgoed B.V., a Dutch commercial real estate holding company. Revenue €9.5M (rental income), total assets €62M (investment properties €54M). Year-end 31 December 2024. First-year engagement. Predecessor auditor: mid-tier Dutch firm that resigned after a fee disagreement.

Step 1. Obtain management’s authorisation to contact the predecessor

Request written authorisation from the managing director, R. Jansen. Authorisation received 8 November 2024. Contact the predecessor engagement partner by email. Request a review meeting and access to the prior-year working papers.

Documentation note: “Management authorisation to contact predecessor obtained 8 November 2024 (letter on file). Predecessor contacted by email 11 November. Review meeting scheduled 25 November. Predecessor confirmed the resignation was due to a fee disagreement. No disagreements on accounting treatments, no fraud identified, and no scope limitations in the prior-year audit. Predecessor’s opinion was unmodified. Meeting notes documented [WP ref].”

Step 2. Review predecessor’s working papers and identify gaps

At the review meeting, examine the predecessor’s files on investment property valuation (the dominant balance at €54M), rental income recognition, borrowings, and related party transactions. The predecessor relied on an external valuation report from a RICS-registered valuer for investment properties. Revenue testing was substantive (analytical procedures plus detailed testing of lease agreements against rental income). Borrowing confirmations obtained from two banks. Related party transactions identified: management fees of €180,000 paid to R. Jansen Holding B.V., a company owned by the managing director.

Documentation note: “Predecessor working papers reviewed 25 November 2024. Key observations: investment property valued by RICS-registered external valuer (report dated October 2023, fair value €54M). Revenue tested substantively. Two bank confirmations obtained. Related party: management fee of €180K to R. Jansen Holding B.V. No areas where predecessor relied solely on management representations without corroboration. Predecessor’s report was unmodified.”

Step 3. Perform opening balance procedures

Investment properties (€54M): obtain the prior-year valuation report, assess the valuer’s competence and objectivity under ISA 620, compare the valuation to the amount recorded in the prior-year audited financial statements. Verify that no disposals or additions between the valuation date and year-end were unrecorded.

Rental income (€9.5M): obtain all active lease agreements. Recalculate expected rental income per lease for the prior year. Compare to recorded revenue. Differences investigated.

Borrowings (€28M across two loans): obtain the loan agreements. Confirm opening balances to the predecessor’s bank confirmations. Recalculate the expected opening balance based on the repayment schedule.

Equity (€8.2M): trace to the prior-year audited financial statements and to the KVK extract for registered share capital.

Documentation note: “Opening balance procedures completed for all material balance sheet lines. Investment property opening balance of €54M agreed to prior-year valuation report and predecessor’s working papers. Rental income: recalculated expected revenue from lease agreements; variance of €12K investigated and resolved (one lease amendment effective November 2023). Borrowings: confirmed to loan agreements and predecessor bank confirmations. Equity: traced to prior-year audited financials and KVK extract. No misstatements identified in opening balances. Conclusion: opening balances do not contain misstatements that materially affect the current period (ISA 510.6).”

Conclusion

The first-year file shows the predecessor communication trail (authorisation, meeting notes, observations), the opening balance procedures for each material line, and the conclusion under ISA 510.6. A reviewer can trace every opening balance to its evidence source. The risk assessment file includes board minutes, KVK extract, industry analysis, two-year analytics, and the related party register built from scratch.

Practical checklist for first-year engagements

Obtain written management authorisation to contact the predecessor auditor before any other first-year procedures. If management refuses, document the refusal and evaluate whether acceptance is appropriate (ISA 510.8 and 510.9).
At the predecessor review meeting, specifically ask about disagreements with management, fraud, scope limitations, and the reason the relationship ended. Document the answers verbatim in the meeting notes (ISA 510.8).
Perform opening balance procedures for every material balance sheet line. Current assets: verify through current-period collection or settlement. Non-current assets: trace to predecessor’s working papers or source documentation. Provisions and estimates: evaluate the prior-year methodology against current-period outcomes (ISA 510.6).
Read the prior-year and current-year board minutes in full. Do not skim. Board minutes are the single best source of information about management’s decision-making on a first-year engagement where you have no cumulative knowledge.
Check the KVK extract for registered charges, director changes, UBO registrations, and filed annual accounts. Cross-reference the shareholder register to the related party list. Any shareholder with more than 10% ownership who doesn’t appear on management’s related party list needs an explanation.
Budget the first-year engagement at 20% to 30% more hours than a comparable recurring engagement. The additional time is spent on predecessor contact, opening balances, extended risk assessment, and building the permanent file from scratch. If the budget doesn’t reflect this, the audit will be rushed at completion.

Common mistakes reviewers flag

Accepting the predecessor’s audited financial statements as sufficient evidence for opening balances without performing any independent procedures. ISA 510.6 requires the auditor (not the predecessor) to obtain sufficient appropriate evidence. The FRC’s Annual Inspection Results have flagged insufficient opening balance work as a recurring deficiency in first-year engagement files.
Skipping the predecessor communication or treating it as a formality. The AFM has noted in its thematic reviews that first-year files often lack documentation of what was discussed with the predecessor, what access was obtained, and what alternative procedures were performed for areas where access was limited.
Applying the same risk assessment depth to a first-year engagement as to a recurring engagement. ISA 315.13 requires understanding the client and its environment, and on a first-year engagement this understanding starts at zero. A first-year planning file that’s the same thickness as a recurring file is a first-year planning file that missed something.

Frequently asked questions

What does ISA 510 require for opening balances on a first-year audit?

ISA 510.6 requires the auditor to obtain sufficient appropriate audit evidence about whether opening balances contain misstatements that materially affect the current period’s financial statements. For current assets, evidence is typically obtained through current-period procedures (e.g., collection of prior-year receivables). For non-current items, the auditor may need to examine the predecessor’s working papers or perform additional procedures such as tracing fixed asset balances to source documentation. Opening balances include not just prior-year closing numbers but also matters requiring disclosure that existed at the beginning of the period.

What should you ask the predecessor auditor on a first-year engagement?

ISA 510.8 requires the auditor to request management’s authorisation to contact the predecessor. Once authorised, ask about: the reason the audit relationship ended (resignation, non-renewal, dismissal), any disagreements with management on accounting treatments, any material matters communicated to governance under ISA 260, any fraud or suspected fraud identified during their tenure, and whether they identified scope limitations. Also examine areas where the predecessor obtained evidence through management representations alone, and any qualifications in the predecessor’s report.

How much additional time should be budgeted for a first-year audit engagement?

Budget a first-year engagement at 20% to 30% more hours than a comparable recurring engagement. The additional time covers predecessor communication, opening balance procedures, extended risk assessment under ISA 315.13 (building understanding of the client from scratch), and constructing the permanent file. If the budget does not reflect this additional effort, the audit will be rushed at completion.

What if the predecessor auditor refuses to cooperate or management refuses authorisation?

If the predecessor refuses to cooperate fully, document what access was obtained and what was not, along with the alternative procedures performed to compensate (ISA 510.10). If management refuses authorisation to contact the predecessor, ISA 510.9 treats that as a factor the auditor should consider in deciding whether to accept the engagement. In both cases, the auditor must obtain evidence on opening balances through alternative means such as substantive testing of opening balances directly, which may include verifying historical cost and accumulated depreciation of material asset classes back to source documentation.

How do you handle accounting policy changes on a first-year engagement?

ISA 510.6(c) requires evaluating whether the accounting policies reflected in the opening balances have been consistently applied in the current period. Compare the accounting policy notes in the prior-year financial statements to the draft current-year policies. If the client changed its depreciation method, revenue recognition policy, or provisioning methodology, evaluate whether the change was properly accounted for under IAS 8 and whether opening balances were restated as required. If the client adopted a new standard in the current period, the transition adjustments are part of opening balance work.