Trusted AI built on 175 years of Thomson Reuters knowledge. Meet The CoCo

Attorney-Client Privilege: Waiver (Federal)

by Thomas E. Spahn, McGuireWoods LLP with Practical Law Litigation

Maintained | USA (National/Federal)

A Practice Note examining when a federal court may find that an individual or entity waived the attorney-client privilege. This Note discusses who holds the authority to waive the privilege before exploring the circumstances that may lead to an express waiver, such as the intentional disclosure of privileged communications during litigation or an unintentional, inadvertent disclosure. This Note also analyzes how a party may impliedly waive the privilege by relying on an "advice of counsel" defense or using protected documents to refresh a witness's recollection. It explains how courts determine the scope of any waiver, including the potential for a broad subject matter waiver that extends to undisclosed communications. This Note also outlines proactive measures parties can take to mitigate waiver risks, such as entering into agreements or seeking a court order under FRE 502(d).

Get access to this document with Practical Law

Why Practical Law?

Gain a built-in attorney network

Practical Law’s resources are written and maintained by over 650 dedicated, full-time attorney-editors globally. They’re highly qualified, having practiced at the world’s leading law firms, corporate law departments, and government agencies, so they understand the challenges you face. They dedicate themselves to creating resources to help you navigate the new legal realities, legislative changes, and practice areas impacting your clients or organization.

See how to leverage the expertise of Practical Law’s attorney-editors to help you practice more efficiently.

Expert guidance

650+ full-time, experienced attorney-editors keep you up to date globally

Total resources

118,000+ total resources across 17 practice areas ensure comprehensive coverage

Timely updates 

150,000+ hours spent in 2025 maintaining and updating resources

Experience Practical Law