It is not currently possible for a Microsoft 365 Family subscription owner to buy Copilot (or Copilot Pro) as an add-on and then assign those AI benefits or licenses to family members.
From the available information:
- AI features (Copilot) in Microsoft 365 Family/Premium are only for the subscription owner
- For Microsoft 365 Family or Premium, AI features like Copilot in Word, Excel, PowerPoint, Outlook, and Designer are explicitly limited to the subscription owner and cannot be shared with other members of the family group.
- Family members can use the Microsoft 365 apps themselves, but not the AI features tied to the owner’s subscription.
- AI benefits cannot be shared with family members
- Documentation states that AI benefits are only available to the subscription owner and cannot be shared with other family members, even if they are on the same Microsoft 365 Family plan.
- If family members want AI features, they must have their own qualifying subscription (for example, Microsoft 365 Personal or Microsoft 365 Premium) associated with their own account.
- How family members can get Copilot/AI features
- A family member who wants access to AI features needs to:
- Have their own Microsoft 365 Personal or Microsoft 365 Premium subscription (not just be a shared member on Family), and
- Use that account in the Microsoft 365 apps.
- Guidance explicitly notes that family members can be removed from the Family subscription and then purchase Microsoft 365 Personal or Microsoft 365 Premium themselves if they want AI features.
- A family member who wants access to AI features needs to:
- Multiple accounts and Copilot usage
- When a Microsoft account with a qualifying Copilot license (Microsoft 365 Personal, Family, or Premium) is signed into Microsoft 365 apps, Copilot can be used on files from other accounts, but the AI benefits still belong only to the subscription owner.
- AI benefits cannot be shared with additional Microsoft 365 Family or Premium members; AI credits are counted against the subscription owner’s account when Copilot is used.
Given this behavior, the message on the Manage Subscription page is consistent with current rules: Copilot/AI benefits are tied to the subscription owner only, and family members who want their own Copilot access need their own eligible subscription (for example, Microsoft 365 Personal/Premium for consumers, or a work/school Copilot license in an organization).
There is no supported process in the provided documentation for purchasing separate Copilot Pro add-on licenses under a single Family subscription and assigning them to family member accounts.
References:
- Learn more about sharing your Microsoft 365 Family or Premium subscription
- How to use Copilot when signed in with one or more account
- Microsoft 365 Personal, Family and Premium subscription benefits
- Use Microsoft 365 Personal, Family, or Premium at work
- How to find and enable missing Copilot button in Microsoft 365 apps