Inside a hedge fund

Fund auditors: what a hedge fund audit checks, and what it cannot

Inside a hedge fund · Published 2026-10-28

Every serious hedge fund has its financial statements audited each year by an independent accounting firm. For investors, the audit is one of the few external checks that a fund's assets exist and are valued fairly. Understanding what an audit does, and what it does not, is part of basic due diligence.

Internal and external audit

An internal auditor is part of the organisation, reviewing its own controls and processes. An external auditor is an independent firm engaged to give an opinion on the financial statements. For hedge funds, "the auditor" means the external auditor. Its independence from the fund manager is what gives the opinion value.

What a fund audit covers

The auditor examines the fund's annual financial statements, typically including a statement of assets and liabilities, a schedule of investments, statements of operations and of changes in net assets, and notes, prepared under an accounting framework such as U.S. GAAP or IFRS. Key procedures include:

• Existence: confirming holdings and cash directly with prime brokers, custodians, banks and counterparties.
• Valuation: testing the prices used for each investment. Exchange-traded securities are checked against market prices; hard-to-value assets require reviewing models, inputs and independent pricing sources.
• Income and expenses: testing that gains, dividends, interest, and management and performance fees are correctly calculated.
• Capital activity: verifying subscriptions and redemptions and the allocation of results between investors.
• Disclosures: checking that notes on risks, related parties, fair value hierarchy and subsequent events are complete.

The result is an audit opinion. An "unqualified" or "clean" opinion states that the financial statements present fairly, in all material respects, the fund's financial position under the applicable framework. A qualified or adverse opinion, or a disclaimer, is a serious warning sign.

Fair value levels

Accounting standards classify investments by how their fair value is determined: Level 1 for quoted prices in active markets, Level 2 for observable inputs such as similar securities' prices, and Level 3 for unobservable inputs that rely on the manager's models. A fund with a large share of Level 3 assets is harder to audit and to value, and investors usually ask more questions about it.

The regulatory role of the audit in the U.S.

Under the SEC's custody rule, Rule 206(4)-2 under the Investment Advisers Act, a registered adviser with custody of client assets must meet several safeguards. For pooled funds such as hedge funds, an adviser can satisfy key requirements by having the fund audited annually by an independent public accountant registered with, and subject to regular inspection by, the Public Company Accounting Oversight Board (PCAOB), and distributing the audited financial statements to investors within 120 days of the fund's fiscal year-end (180 days for funds of funds). This is why an audit is effectively standard for U.S. hedge funds managed by registered advisers.

The SEC adopted further private fund adviser rules in 2023, including a mandatory audit requirement, but the U.S. Court of Appeals for the Fifth Circuit vacated those rules in June 2024. The custody rule's audit provision remained in place.

In the European Union, alternative investment fund managers must have their funds' annual reports audited under the AIFMD.

Why auditor quality became a due diligence item

The fraud run by Bernard Madoff, uncovered in December 2008, involved billions of dollars of fictitious assets. Its accounts were audited by a very small firm with a single practising accountant, which was not subject to peer review. The accountant later pleaded guilty to charges related to the fraud. Since then, investors routinely check who audits a fund and treat an unknown or tiny audit firm, relative to the fund's size and complexity, as a red flag. Large funds typically use one of the major international accounting networks or established specialist firms, though size alone does not guarantee quality.

What an audit does not do

• It is based on samples and materiality; it gives reasonable, not absolute, assurance.
• It covers a point in time (the fiscal year-end) and a past year. It says nothing about current positions.
• It does not judge whether the strategy is sound or whether risks are appropriate.
• It is not designed primarily to detect fraud, although auditors must consider fraud risk; collusion with third parties can defeat procedures.
• It relies on the integrity of confirmations; if a fund's assets are held at a related party, independence is weakened.

Checks for investors

• Who is the auditor, and is it registered and inspected by the relevant oversight body?
• Has the auditor changed recently, and why?
• Was the latest opinion clean, and were the statements delivered on time?
• Can you confirm the engagement directly with the audit firm?
• Are assets held by independent custodians and prime brokers that the auditor confirms?
• What share of assets is Level 3, and how is it valued?

The auditor is one of several independent service providers, alongside the administrator, custodian and prime broker, whose presence and quality together form the operational foundation of a fund.

The audit timeline

For a fund with a December year-end, the audit usually starts with planning in the autumn, including a review of controls at the manager and administrator. After year-end, the auditor sends confirmation requests to counterparties, tests valuations and capital activity, and reviews the draft financial statements prepared by the administrator. The audited statements are typically issued in the spring, within the deadlines set by regulators and fund documents. Investors receive them along with the auditor's report. Delays beyond the usual timetable are worth asking about, because they can signal disagreements over valuation or other problems.