Auditing Estimates, Related Parties, and Other Special Matters

AUD special-matter coverage for estimates, related parties, litigation, going concern, and use of specialists.

This chapter covers areas where standard audit procedures require stronger judgment or specialized support. Estimates, related-party activity, legal contingencies, and going-concern issues often create the hardest evidence and reporting decisions in AUD.

Special-matter questions usually test sufficiency and skepticism. The auditor must decide whether management’s estimate, relationship, legal assessment, going-concern conclusion, or specialist evidence is supported well enough for the risk involved.

In This Chapter

Special Matters Lens

Special matter What to evaluate first Common AUD trap
Estimates and contingencies Whether assumptions, methods, data, and bias indicators support management’s estimate. Recalculating a number without challenging the inputs.
Related parties Whether relationships and transactions were identified, authorized, and disclosed. Assuming management has fully identified related parties.
Legal claims and litigation Whether inquiry, legal letters, and disclosure evidence support the conclusion. Treating legal contingencies as ordinary accrued expenses.
Going concern Whether conditions raise substantial doubt and whether plans alleviate it. Jumping to report language before evaluating management’s plans.
Auditor’s specialist Whether the specialist is competent, objective, and properly used. Outsourcing auditor judgment to the specialist.

Special Matter Audit Sequence

Step What to do Why it matters on AUD
1. Identify the special risk Determine whether the issue involves an estimate, related party, legal matter, going concern, or specialist evidence. Each special matter requires different evidence and skepticism.
2. Understand management’s process Evaluate how management identified, measured, approved, and disclosed the matter. The auditor must test the process behind the assertion, not only the final number.
3. Corroborate key assumptions Use external evidence, subsequent events, legal letters, specialist work, or independent expectations where relevant. Special matters often involve bias, uncertainty, or incomplete management information.
4. Evaluate disclosure and reporting effects Decide whether the financial statements and notes communicate the matter appropriately. Many special-matter questions turn on disclosure adequacy rather than amount alone.
5. Retain auditor responsibility Assess specialist competence and objectivity without transferring the audit conclusion to the specialist. The auditor may use expert work but still owns the opinion.

Special Matter Audit Checkpoints

Checkpoint Exam use What to avoid
Matter type Classify the issue as estimate, related party, litigation, going concern, or specialist evidence. Applying ordinary substantive procedures without recognizing the special risk.
Management process Evaluate how management identified, measured, approved, and disclosed the matter. Auditing only the final number or disclosure wording.
Corroborating evidence Use subsequent events, external data, legal letters, minutes, confirmations, specialist work, or independent expectations. Accepting management’s explanation without independent support.
Reporting consequence Determine whether disclosure, emphasis, modification, substantial-doubt language, or other communication is needed. Jumping to report language before completing the evidence evaluation.
Auditor responsibility Evaluate specialist competence and objectivity while retaining responsibility for the audit conclusion. Treating specialist involvement as a transfer of audit judgment.

How to Use This Chapter

  • Read this chapter after the main substantive-testing chapter because these areas often extend that work.
  • Focus on why these matters require more judgment, corroboration, or specialist involvement.
  • Return here whenever an AUD question involves uncertainty, disclosure sensitivity, or reliance on expert work.

In this section

Revised on Monday, June 15, 2026