A Microsoft 365 Family subscription can be shared with five other people through the owner's dashboard. Invite each person to your Microsoft family group, then check that their subscription benefits are shared.
Each person uses their own Microsoft account. Sharing a product key or passing around your password isn't the sharing process, and joining the family group doesn't always mean the subscription has already been shared.
In this guide
Find the owner's subscription dashboard
Open account.microsoft.com/services/office/sharing and use the Microsoft 365 Family owner's personal Microsoft account to sign in. Check the signed-in email address before sending invitations.
Microsoft says sharing starts with an email or link from this dashboard. Someone you've shared with can't share that same subscription with more people.
The plan needs to be Family or another eligible sharing plan. Personal and Basic aren't Family subscriptions, even though the same account pages can show them. Work or school licenses follow the organization's rules.
If you don't see a sharing button, check the purchase receipt and plan name first. Our Microsoft 365 plan comparison explains why a plan with extra storage might still lack household desktop-app sharing.
The subscription covers the owner and five other people. If all five shares are in use, remove an existing share before inviting a replacement. The dashboard shows how many shares remain.
Invite each person to the family group
Choose Share or Start sharing on the sharing dashboard. For someone who isn't in your Microsoft family group, choose the email invitation or create a link to send to that person.
With Email invite, enter the recipient's email address and select Invite. With Create link, select Copy link, then send that link privately to the intended person through your usual messaging method.
Send an invitation for each person you want to include. I'd check the email address with them first, especially when they have an old Microsoft login and a newer everyday mailbox. The account they use to accept is the one that gets access.
The recipient opens the invitation email and selects Get started. They sign in to their own Microsoft account, or create one if needed, then choose Join now to accept family membership.
Invitations must be accepted within 48 hours. Until they accept, the owner's subscription dashboard shows Pending invite. Use Resend invite beside the person's name if they need a fresh invitation.
If the browser is already signed in as the owner, sign out before the recipient accepts. Check the email shown on the acceptance screen. Accepting with the wrong account won't give access to the account they use in Word.
Confirm sharing after family membership is accepted
Return to the owner's sharing page and find the new member. Family membership and Microsoft 365 sharing are related but separate: the dashboard can list family members whose benefits haven't been shared yet.
For those members, choose Start sharing. For someone already receiving benefits who hasn't joined the family, the dashboard can show Invite to family. They need to remain in the owner's family group to keep sharing.
The sharing management page describes these different member states. Check the person's status there before sending another invitation just because an app hasn't activated.
If acceptance says the person is already in another family group, they must leave that group before joining yours. Ask them to check what they already share through that group first; opening your invite again won't change their membership.
A family member who has joined but still lacks the apps should check the exact account receiving the share. Compare that address with the account signed in to the subscription dashboard and the Office app.
Install and activate from the member's own account
Once sharing is active, the member opens their own account dashboard and selects Install Microsoft 365 on all your devices, or the installation option shown there. Download the installer for the computer they'll use.
Run the installer, let setup finish, then open Word or another included desktop app. Use the member account that accepted your invitation to sign in. The owner's account doesn't need to remain signed in on the member's PC.
On Windows desktop Word, open File > Account to check the product and signed-in account. A different account or an expired trial can explain an activation prompt even when the owner has successfully shared the subscription.
When replacing an older suite, the Office 2016 to Microsoft 365 steps cover existing apps and local Outlook data. Sharing the subscription doesn't uninstall or upgrade the software already on the computer.
Each person can install on their devices, but can be signed in to Microsoft 365 on five devices at once. That's a per-person device limit, separate from the five additional people allowed on the subscription.
Check storage and benefits before promising the old allowance
The storage rules changed on October 8, 2026. New and upgraded Family subscriptions now include 2 TB shared across the subscription, rather than the old arrangement of individual allowances. Check the actual account's storage dashboard.
Existing Family subscriptions generally move to shared storage after their first renewal on or after May 2, 2027. An eligible plan change can move the subscription earlier. The current storage-change details explain the timing.
Shared storage doesn't open the members' private files to the household. Files stay private unless their owner shares them. Sharing storage space doesn't give someone access to your documents.
AI features such as Copilot in Word, Excel, PowerPoint and Outlook aren't shared with the other members under the sharing instructions. Don't assume every benefit advertised for the owner appears in each member's apps.
Free a place or report a failed invitation
To free a place, find the current member on the dashboard and choose Stop sharing. They lose their subscription benefits, including desktop-app rights and extra storage. Review their storage needs before making that change.
Stopping a share doesn't automatically remove the person from the Microsoft family group. Removing family membership is a separate action. Don't use it just to troubleshoot a pending invitation.
If the dashboard still won't share an eligible plan, use its support options and give support the owner's plan, available shares and exact invitation error. For activation, report the member's account and the message shown inside the app.
The Short Version
Invite people from the owner's dashboard, confirm family membership and Start sharing when needed. Members install with their own accounts. Check storage and owner-only benefits before promising the old allowances.
Checked November 13, 2026.
