Glossary/Engagements and reports

Workpaper ownership

Workpaper ownership concerns who holds rights to a firm's audit documentation, which professional standards treat as the auditor's property, while clients keep rights to their own records under the Code and state law.

CORAA TeamUpdated November 5, 2026

Definition

Audit documentation, often called workpapers, is generally treated in professional standards as the property of the auditor, and some states recognize this in statute. That does not let a firm keep the client's own records. The AICPA Code treats records requests as part of the Acts Discreditable Rule (ET 1.400.200), and state boards of accountancy often set stricter terms for client-provided records and for member-prepared records. The firm still owes the client its original records on request, subject to the Code and state law.

Why it matters in an audit or review

Ownership questions arise when a client changes firms, a lender or regulator asks for files, or a fee dispute begins. A successor auditor may ask for access to the predecessor's documentation, which depends on client consent and the predecessor's judgment under the Code and AU-C 510.

Example

Illustrative: a client leaves the firm and requests its files. The firm returns the client's general ledger exports and original contracts, and keeps its own analyses and tick-marked schedules, subject to what the state board allows.

Common mistakes

  • Refusing to return client-provided records during a fee dispute without checking state rules.
  • Promising a client the audit file in an engagement letter.

Sources

  • AICPA, AU-C section 230, Audit Documentation (ownership and confidentiality of audit documentation)
  • AICPA, Code of Professional Conduct, ET 1.400.200, Records Requests: https://pub.aicpa.org/codeofconduct/ethics.aspx
  • State board of accountancy rules on client records and working papers

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 230AICPA Code ET 1.400.200

Related terms

  • Working paper
    A working paper is a page or file in the audit documentation that records one piece of work: its purpose, source, procedure, results and the conclusion, with the preparer and reviewer identified.
  • Audit documentation
    Audit documentation is the record of the procedures performed, evidence obtained and conclusions reached, written so an experienced auditor with no prior connection to the engagement can understand the work.
  • Records retention
    Records retention is the period a firm must keep audit documentation and client files, which is at least five years from the report release date for a nonissuer audit under AU-C 230.
  • Predecessor and successor auditor
    The predecessor auditor is the one being replaced and the successor is the incoming auditor, who communicates with the predecessor before accepting an engagement and may review its workpapers with permission.

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