Building and customizing solutions using Microsoft 365 Copilot APIs and tools
Microsoft 365 Family and Microsoft 365 Premium are explicitly designed so that most subscription benefits (apps and storage) can be shared with up to five other people, but advanced AI features such as Copilot are not shareable and are restricted to the subscription owner.
The documentation states that for Microsoft 365 Family and Premium:
- Most benefits like Word, Excel, PowerPoint, OneNote, and OneDrive storage can be shared with up to five additional people in the family group.
- AI features such as Copilot in Word, Excel, PowerPoint, Outlook, Designer, and Copilot in OneDrive are only available to the subscription owner and cannot be shared with other family members, even if they are part of the same Family plan.
- AI credits and limits for Microsoft 365 Personal, Family, and Premium are also defined per subscription owner, and AI benefits are only available to that owner.
For Outlook specifically, when signed in with a Microsoft account that has Copilot access (Copilot Pro or AI credits via Microsoft 365 Personal or Family), Copilot features can be used across all email accounts connected in that Outlook profile on the same device. However, this sharing is across accounts for the same signed-in user, not across different family members’ accounts.
If equal AI access for all family members is required, each person would need an eligible individual subscription (for example, Microsoft 365 Personal or Microsoft 365 Premium for individuals) rather than relying on shared AI features from a single Family subscription. The current product design does not support extending Copilot Pro or other advanced AI entitlements from the Family owner to other family members.
Feedback about fairness or desired changes to this model would need to be submitted through official Microsoft feedback channels (for example, via the Microsoft 365 apps or account portal), as the behavior aligns with the documented, intended licensing and benefit structure.
References:
- Learn more about sharing your Microsoft 365 Family or Premium subscription
- Sharing Copilot in Outlook
- Frequently asked questions about Copilot in OneDrive
- Microsoft 365 Personal, Family and Premium subscription benefits
- AI credits and limits for Microsoft 365 Personal, Family, and Premium
- Introducing Microsoft 365 Premium