Glossary/Audit procedures

Confirmation exceptions

A confirmation exception is a reply that disagrees with the recorded amount or terms. The auditor investigates each one to decide whether it is a misstatement, a timing difference or an unreliable response.

CORAA TeamUpdated November 5, 2026

Definition

A third party's reply may differ from the entity's records. Under AU-C 505 the auditor investigates exceptions to find out whether they indicate a misstatement, including the possibility of fraud. Many are timing differences, such as a payment in transit on year end, or disputes that are already known. Others are real errors, such as billing mistakes or invalid balances.

Why it matters in an audit or review

An exception is useful because it shows where the books and the outside party differ. Misstatements found are accumulated and, in a sample, projected. If a pattern appears, the auditor may need to change the risk assessment, extend testing or reconsider the reliability of the client's records.

Example

Of 25 positive receivable confirmations (illustrative), 3 differ. One customer paid $14,000 on December 30, and the check was deposited January 3, which is a timing difference supported by the bank deposit. One disputes a $9,500 charge for returned goods, which is an error if the credit memo was issued late. One reply has an unverified email sender and is treated as unreliable.

Common mistakes

  • Accepting the client's explanation without checking it to an external or independent document.
  • Treating every exception as timing.
  • Not logging exceptions on the confirmation control log.

FAQ

Does an exception always mean an adjustment?

No. Only exceptions that are real misstatements lead to adjustment.

Sources

  • AICPA, AU-C Section 505, External Confirmations
  • AICPA, AU-C Section 530, Audit Sampling (projecting misstatements)
  • AICPA, AU-C Section 450, Evaluation of Misstatements Identified During the Audit

Definitions paraphrase AICPA and FASB guidance; read the standard itself before relying on a requirement. Example figures are illustrative. This page is guidance, not professional advice. Report an error

Standards

AU-C 505

Related terms

  • External confirmation
    External confirmation is audit evidence obtained as a direct written response from a third party, on paper or electronically, about a balance, term or transaction, using positive or negative request forms.
  • Alternative procedures
    Alternative procedures are other audit tests performed to get the evidence a confirmation would have provided, used when a confirmation request is not returned or a reply is unreliable.
  • Projected misstatement
    Projected misstatement is the auditor's estimate of misstatement in a population, found by extrapolating the misstatements identified in a sample to the whole population from which the sample was drawn.
  • Uncorrected misstatements (SUM)
    Uncorrected misstatements are errors found by the auditor that management chose not to adjust. They are accumulated, often on a schedule called the SUM, and evaluated together against materiality.

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