Glossary/Audit procedures

Related party procedures

Related party procedures are the audit steps to identify related parties, find related party transactions, evaluate their business purpose and test whether they are properly accounted for and disclosed under GAAP.

CORAA TeamUpdated November 5, 2026

Definition

AU-C 550 requires risk assessment inquiries of management and others about related parties and their transactions, a review of records for transactions outside the normal course, and procedures to identify previously unidentified or undisclosed relationships. For significant transactions outside the normal course, the auditor evaluates the business rationale and whether terms are supported. ASC 850 governs disclosure.

Why it matters in an audit or review

Related party transactions carry a higher risk of fraud and incomplete disclosure, because terms may not be arm's length and management may have an interest in hiding them. Auditors are also required to obtain written representations on completeness. A statement that transactions were at arm's length cannot be made unless it can be substantiated.

Example

During journal entry testing, the auditor notes a $250,000 (illustrative) loan to an entity that shares an address with the owner's spouse. The auditor asks about the relationship, inspects the note and board approvals, confirms the balance with the borrower, and adds a disclosure requirement under ASC 850.

Common mistakes

  • Relying on the client's list alone.
  • Treating a transaction as arm's length because management says so.
  • Ignoring loans to officers and owners.

FAQ

Yes. The inquiry, awareness and testing steps are required on every audit.

Sources

  • AICPA, AU-C Section 550, Related Parties
  • FASB ASC 850-10-50

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 550ASC 850

Related terms

  • Journal entry testing
    Journal entry testing is the audit procedure of examining journal entries and other adjustments for evidence of material misstatement due to fraud, required on every audit as a response to management override risk.
  • Management override of controls
    Management override of controls is the risk that management bypasses controls that otherwise work, by posting false entries or biasing estimates, and AU-C 240 treats it as present in every audit.
  • Inquiry
    Inquiry is an audit procedure that seeks information from knowledgeable people inside or outside the entity, in formal written or informal oral form, and is rarely enough evidence on its own.
  • 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.

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