To switch from Microsoft 365 Personal to Microsoft 365 Family, the path depends on how the subscription was purchased.
If the subscription was purchased directly from Microsoft:
- Buy the Microsoft 365 Family subscription wanted.
- Use the same Microsoft account as the current Personal subscription.
- Start using the Family benefits immediately.
- The remaining days on the Personal subscription are automatically converted and added to the new Family subscription.
For a Personal → Family upgrade, the remaining time is converted at 92%.
If the subscription was purchased through a third-party billing partner such as the Apple App Store:
- Subscription changes are managed by that billing partner.
- Go to account.microsoft.com/services, select Manage for the subscription, and follow the billing partner’s management path.
- Third-party partners may or may not allow switching plans.
If the subscription was purchased from the app on Apple devices, management is done in:
Settings > [name] > iTunes & App Store / iTunes & App Stores > Subscriptions.
Also, switching from Personal to Family does not change the storage size per user. Family increases the number of people who can use the subscription, up to six people total.