A Microsoft account — the email address and password you use to sign in with — can have only one active Microsoft 365 subscription.
If you buy or redeem the same Microsoft 365 subscription plan to your Microsoft account, you'll have the same subscription benefits as before, but you will extend the amount of time for that subscription, not increase the number of Microsoft 365 devices you can sign in to or amount of online storage you get. You can extend the duration of a Microsoft 365 subscription for up to 5 years.
When you add a Microsoft 365 subscription to an account that already has a Microsoft 365 subscription, any remaining time from your current subscription is added to the new one. For example, if you have 6 months left on your current Microsoft 365 Family subscription and you add a new yearly Microsoft 365 Family subscription to your account, we'll extend it to 18 months.
If you buy or redeem a different Microsoft 365 subscription plan to your Microsoft account, the choices you see will depend on whether you are moving to a plan with more or fewer features. See Switch between Microsoft 365 subscriptions for more details.
Important
If you accidentally switch your Microsoft 365 Personal, Microsoft 365 Family, or Microsoft 365 Personal subscription, contact support.
I have a free offer that came with my computer
You can use the free offer in any of these ways:
- Redeem the offer now and choose to stay with Microsoft 365 Family. This will add an additional 9 months to your subscription.
- Redeem the offer now and switch your Microsoft 365 Family subscription to Microsoft 365 Personal. This will add an additional 12 months to your subscription.
- Redeem the offer now using a different Microsoft account.
- If you want to stay with your current subscription for now, you can wait until your subscription expires and then redeem the free offer for Microsoft 365 Personal.
If you have an existing Microsoft 365 Family subscription and redeem the offer for a free year of Microsoft 365 Personal, you'll be asked if you want to convert your existing subscription to Microsoft 365 Personal or stay with Microsoft 365 Family. If you convert to Microsoft 365 Personal, you won't be able to share your subscription.
To learn how to redeem the free offer and add it to your current subscription, see Switch from Microsoft 365 Home using a product key.