ISA 800 (Revised): Audits of Special Purpose Financial Statements: Complete Guide

Why ISA 800 matters

Not all FS are prepared under IFRS or local GAAP. Entities routinely prepare FS under frameworks designed for specific purposes: tax filings, regulatory returns, contractual compliance, or funding agreements. These special purpose financial statements still require auditing, and the engagement follows all ISAs with important modifications. ISA 800 (Revised) identifies the special considerations that arise when the applicable financial reporting framework is a special-purpose framework rather than a general purpose one.

For mid-tier firms across Europe, SPF engagements make up a significant part of the practice. Owner-managed businesses may need audited accounts on a tax basis for fiscal authorities. Regulated entities prepare supervisory returns under frameworks prescribed by financial regulators. Investment funds report under specific fund accounting rules. Entities involved in government contracts or grant programmes prepare statements per the funder’s requirements.

Scope and key definitions

ISA 800 (Revised), effective for periods ending on or after 15 December 2016, applies when an auditor conducts an audit of a complete set of FS prepared in accordance with a special-purpose framework. It is written in the context of the full ISA suite (100–700 series) and adds special considerations on top of those requirements. It does not replace them.

A special-purpose framework is a financial reporting framework designed to meet the financial information needs of specific users. The intended users’ needs determine the applicable framework. Types include:

The framework is either fair presentation or compliance. This distinction matters for the opinion wording. A fair presentation framework requires fair presentation (management may need to make additional disclosures beyond the framework requirements). A compliance framework simply requires preparation in accordance with the framework’s requirements without the overriding fair presentation obligation. In our experience, this is where compliance-basis work quietly becomes a tick-box exercise. The engagement partner (EP) signs off against “did we follow the rules in the contract” and never asks whether the resulting numbers could mislead the intended user.

The first step in any ISA 800 engagement is determining exactly what framework applies and whether it is a fair presentation or compliance framework. Review the contract, regulation, or statutory requirement carefully. If the framework states “shall be prepared in accordance with [requirements] and present fairly,” it is a fair presentation framework. If it simply prescribes specific rules without a fair presentation override, it is a compliance framework.

Acceptance considerations

Before accepting an ISA 800 engagement, the auditor must determine that the special-purpose framework is an acceptable financial reporting framework in the circumstances. Considerations include:

1. What is the purpose of the FS? Who will use them and for what decisions?
2. Is the framework designed to meet those needs? Does it produce information that is relevant and reliable for the intended users?
3. Will the FS achieve adequate presentation? Even under a compliance framework, the statements should not be misleading.
4. Are there any restrictions on distribution or use that should be reflected in the engagement terms?

The auditor should not accept an engagement where the framework requires compliance with “most, but not all” requirements of a recognised framework (such as IFRS minus certain standards). If a contract states “prepare in accordance with IFRS except for IAS 19,” the resulting framework is neither IFRS nor necessarily an acceptable special-purpose framework. The auditor must evaluate whether the modifications create an acceptable framework in the circumstances.

Special considerations in planning and performing the audit

Understanding the framework

ISA 315 requires the auditor to obtain an understanding of the entity’s selection and application of accounting policies. For special-purpose frameworks, this understanding extends to:

• The purpose for which the FS are prepared
• The intended users
• The steps taken by management to determine the framework is acceptable
• Any significant interpretations of the framework (particularly for contractual frameworks where contract terms may be ambiguous)

Going concern

Going concern considerations differ for special-purpose frameworks. The going concern basis may not be relevant. FS prepared on a tax basis for a partnership that is dissolving, or statements prepared on a liquidation basis, are common examples. The auditor must evaluate whether the going concern basis is relevant to the specific framework and adapt procedures accordingly. When going concern is not relevant, the auditor adapts the report to remove or modify going concern references in the management and auditor responsibilities descriptions.

All ISAs apply

A common misconception is that SPF engagements are “lighter” audits. They are not. ISA 200 requires compliance with all relevant ISAs. The auditor still performs risk assessment (ISA 315), still determines materiality (mat, ISA 320) at planning materiality (PM) level, still designs responses (ISA 330), and still performs every other applicable procedure. What changes is the framework against which the FS are evaluated, not the rigour of the audit process.

Forming the opinion

The auditor applies ISA 700 when forming an opinion but with framework-specific wording.

Fair presentation framework opinion: “In our opinion, the financial statements present fairly, in all material respects, [the financial position of the entity]... in accordance with [the special-purpose framework].”

Compliance framework opinion: “In our opinion, the financial statements are prepared, in all material respects, in accordance with [the special-purpose framework].”

The distinction is that a fair presentation opinion addresses both compliance with the framework and fair presentation, while a compliance framework opinion addresses only compliance.

Reporting: the mandatory EOM paragraph

ISA 800 (Revised) requires the auditor’s report to include an Emphasis of Matter (EOM) paragraph that:

1. Alerts users that the FS are prepared in accordance with a special-purpose framework
2. Refers to the note in the FS that describes the framework
3. States that the FS may not be suitable for another purpose
4. May restrict distribution or use of the report to the intended users

This EOM paragraph is mandatory even when the auditor is satisfied with the FS. It is not an expression of doubt but a contextual alert. The paragraph may also include a statement restricting distribution or use of the report to the intended users.

For many SPF engagements, the auditor’s report should include a restriction on distribution. If the FS are prepared solely for bank covenant compliance, the report should state that it is intended only for the entity and the bank and should not be distributed to other parties. This protects both the auditor and users who might inappropriately rely on FS prepared under a framework not designed for their needs.

Report structure

The full report follows ISA 700’s structure with modifications:

When the auditor also reports on general purpose financial statements

When the auditor has issued an audit report on the same entity’s general-purpose FS and also issues a report on special-purpose FS, the two reports should be distinguishable. Different addressees, clear identification of the framework in each report, and potentially separate report dates help avoid confusion. The file should tell a story here: the reviewer needs to see immediately which report relates to which framework, and why the entity has two.

Common special-purpose engagement scenarios

In loan covenant compliance engagements, a bank requires audited FS prepared under specific accounting rules defined in the loan agreement. The auditor verifies that the entity has applied the contractual framework correctly, including covenant calculations. The report is addressed to the entity and the bank.

Regulatory supervisory returns are another common scenario. A financial regulator requires an audit of prudential returns prepared under the regulator’s specific framework. The auditor evaluates compliance with the regulatory framework and may need to follow additional requirements imposed by the regulator.

For tax-basis FS, an entity prepares FS on a tax basis for filing with fiscal authorities. Revenue recognition, asset valuation, and expense recognition follow tax rules rather than accounting standards. The auditor evaluates compliance with the tax framework.

Government grant compliance engagements involve a government agency requiring audited FS demonstrating how grant funds were used, prepared under the agency’s specified framework. The auditor verifies that expenditures comply with grant conditions.

Joint venture or shareholders’ agreement engagements arise when the agreement requires annual audited FS prepared under specific accounting rules agreed by the parties. The auditor follows the contractual framework and addresses the report to the joint venture parties.

European jurisdiction implementations

Netherlands

Dutch practice encounters special-purpose frameworks frequently in the context of regulatory reporting to De Nederlandsche Bank (DNB) and the Autoriteit Financiële Markten (AFM). Financial institutions prepare supervisory returns (FINREP, COREP) under frameworks prescribed by the European Banking Authority as implemented by DNB. The NBA has issued specific guidance (Standaard 800) aligning with ISA 800 while addressing Dutch statutory requirements. Dutch stichtingen (foundations) and verenigingen (associations) may prepare accounts under simplified frameworks permitted by BW 2 Title 9, and audits of these special-purpose accounts follow ISA 800 principles. The auditor must ensure the report clearly distinguishes between the scope of a BW 2 statutory audit and a special-purpose engagement.

Germany

German auditors encounter SPF engagements in the context of HGB §264(3)/§264b exemptions, where subsidiaries are exempted from preparing individual FS under full HGB rules. Tax-basis reporting is common for smaller entities, with audits following IDW PS 480 on special-purpose FS. Regulatory reporting to BaFin for banks, insurance companies, and securities firms requires audits under specific supervisory frameworks. The Prüfungsberichtsverordnung (PrüfbV) for banks and Prüfungsberichtsverordnung für Versicherungsunternehmen for insurers prescribe detailed report contents that go beyond ISA 800. IDW PS 800 (the German equivalent) provides additional guidance on framework acceptability and report wording in German-language contexts.

United Kingdom

ISA (UK) 800 aligns closely with the international standard. SPF engagements are common in the UK financial services sector, where the PRA and FCA require audits of regulatory returns. The FRC has issued practice notes covering specific industries: Practice Note 16 for banks, Practice Note 20 for insurers, and others. Charities preparing accounts under the Charities SORP (which itself is based on FRS 102) technically follow a general-purpose framework, but many smaller charities prepare receipts and payments accounts under a simplified basis that may constitute a special-purpose framework. Academies (state-funded schools) prepare accounts under the Academy Trust Handbook framework, which introduces specific requirements that go beyond general GAAP. UK auditors must be careful to distinguish between ISA (UK) 800 SPF engagements and the more common general-purpose audits under FRS 102 or IFRS.

France

French commissaires aux comptes encounter special-purpose frameworks primarily in the context of comptes de campagne (political campaign FS), associations receiving public subsidies that must report under specific government-prescribed frameworks, and financial institutions reporting under ACPR (Autorité de Contrôle Prudentiel et de Résolution) supervisory frameworks. NEP 9080 governs the auditor’s work on special-purpose FS. French law also requires specific certifications (attestations) for various regulatory filings. These may fall under ISA 800 or under ISAE 3000 depending on whether they constitute an audit of FS or an assurance engagement. The distinction requires careful analysis of the engagement’s nature. For sociétés civiles immobilières (real estate holding companies) and other structures used in tax planning, special-purpose accounts on a tax basis are frequently encountered.

Relationship with other standards

• ISA 700 applies, with modifications for the framework type and the mandatory EOM paragraph
• ISA 705 governs modified opinions, which follow the same principles but reference the special-purpose framework
• ISA 706 governs the mandatory EOM paragraph under ISA 800, setting requirements for form and placement
• ISA 805 applies instead of ISA 800 for audits of single FS or specific elements (not complete sets)
• ISA 570 going concern assessment may not be applicable depending on the framework
• ISA 210 requires the engagement letter to clearly identify the special-purpose framework and intended users

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Frequently asked questions

Further reading and source references

• IAASB Handbook 2024: The authoritative source for the complete ISA 800 (Revised) text.
• ISA 700 (Revised): ISA 800 applies ISA 700's reporting requirements with modifications for the framework type.
• ISA 705 (Revised): Modified opinions follow the same principles but reference the special purpose framework.
• ISA 706 (Revised): The mandatory EOM paragraph under ISA 800 follows ISA 706's requirements for form and placement.
• ISA 805 (Revised): For audits of single financial statements or specific elements rather than complete sets.
• ISA 570 (Revised): Going concern assessment may not be applicable depending on the framework.
• ISA 210: The engagement letter must clearly identify the special purpose framework and intended users.