Does Microsoft 365 Copilot sign a BAA?

Yes, it signs a BAA

Microsoft's HIPAA BAA is included by default in its Data Protection Addendum for commercial customers, and Microsoft lists Microsoft Copilot and Copilot Chat among the Office 365 services it covers. Web search queries sent to Bing are explicitly outside the DPA and the BAA.

Based on 5 sources, all from Microsoft unless marked.

Not fully covered by the BAA: Web search grounding (Bing web queries); Third-party plugins / connectors.

Business associate
Microsoft
Tool
Microsoft 365 Copilot
Plans with a BAA
Microsoft 365 commercial (Microsoft 365 Copilot license); Microsoft 365 Copilot Chat (free with eligible work/school Entra accounts); Office 365 GCC
Checked
Signs a BAA
Microsoft signs a BAA for Microsoft 365 Copilot.

By plan

PlanBAAHow to get itConditions
Microsoft 365 commercial (Microsoft 365 Copilot license)Signs a BAAIncluded in the termsThe BAA comes by default through the Microsoft Online Services DPA for customers that are covered entities or business associates. The Commercial in-scope table lists 'Microsoft Copilot' and 'Microsoft Copilot Chat'. The HIPAA page does not use the exact name 'Microsoft 365 Copilot', but Microsoft's EDP page says Microsoft Copilot and Copilot Chat support HIPAA compliance when properly configured.[1],[2]
Microsoft 365 Copilot Chat (free with eligible work/school Entra accounts)Signs a BAAIncluded in the termsCopilot Chat is named in the Commercial and GCC in-scope lists. Enterprise data protection under the DPA and Product Terms applies to prompts and responses for eligible work and school accounts.[1],[2],[3]
Office 365 GCCSigns a BAAIncluded in the termsThe GCC in-scope table lists Microsoft Copilot and Microsoft Copilot Chat. The HIPAA page gives no in-scope service table for GCC High or DoD.[1]

Are the AI features covered?

Vendors often sign a BAA for the core product but leave some AI features out. Here is what Microsoft says about each one.

AI featureUnder the BAADetails
Copilot / Copilot Chat prompts and responses (enterprise data protection)CoveredPrompts and responses get EDP under the DPA and Product Terms, with Microsoft acting as processor. Microsoft says Copilot and Copilot Chat support HIPAA compliance for properly configured implementations.[1],[2],[3]
Web search grounding (Bing web queries)ExcludedMicrosoft says HIPAA compliance does not apply to web search queries because the DPA and BAA do not cover them. Bing operates as an independent data controller under the Microsoft Services Agreement. Admins can switch off web search, which is an optional connected experience.[2],[4],[5]
Third-party plugins / connectorsMicrosoft 365 commercial (Microsoft 365 Copilot license)ExcludedMicrosoft tells customers to check each third-party plugin's own privacy statement and terms. These plugins fall outside Microsoft's own commitments.[5]

Sources

  1. HIPAA/HITECH - Microsoft complianceMicrosoft, Documentation. Checked Oct 11, 2026.
  2. Enterprise data protection in Microsoft 365 Copilot and Microsoft 365 Copilot ChatMicrosoft, Documentation. Checked Oct 11, 2026.
  3. Privacy and protections for Copilot ChatMicrosoft, Documentation. Checked Oct 11, 2026.
  4. Manage access to public web content in Microsoft 365 CopilotMicrosoft, Documentation. Checked Oct 11, 2026.
  5. Data, Privacy, and Security for Microsoft 365 CopilotMicrosoft, Documentation. Checked Oct 11, 2026.

A signed BAA is necessary but not sufficient for HIPAA compliance, which also depends on configuration, access controls, and your own policies. Verdicts summarize the vendor's own published terms as of the date checked; confirm with the vendor and your counsel before sending protected health information. Not legal advice.