It says subscription expired but I have paid

The subscription-expired or account-notice message usually means Microsoft 365 cannot confirm an active, paid subscription for the account signed into Outlook/Office, or there is a payment/renewal issue on the backend.

Follow these steps in order:

1. Confirm the subscription is actually active
   1. Close Outlook and all Office apps.
   2. Go to the Microsoft account Subscriptions page: https://account.microsoft.com/services.
   3. Sign in with the same Microsoft account used in Outlook.
   4. Under the Microsoft 365 heading, check the status:
      • If it shows Expired or Canceled, renew it using the steps in Renew Microsoft 365 Family linked from the page.
      • If it shows Past due, pay the overdue amount (see next step).
2. Pay any past-due balance
   1. On the same Services & subscriptions page, look for any subscription marked Past due.
   2. Select Pay now.
   3. Update or change the payment method if the card is expired or invalid.
   4. Complete the payment.
   5. After payment succeeds, wait a few minutes, then restart Outlook and check again.
3. Make sure payment information is valid
   1. Go to the Payment options page: https://account.microsoft.com/billing/payments.
   2. Sign in with the same Microsoft account.
   3. If the payment method shows an error (expired or declined), update it or add a new payment method.
   4. Restart Outlook and check whether the subscription warning disappears.
4. If Outlook still shows subscription expired after renewal/paying
   1. Confirm online that the subscription shows as Active and the expiration date is in the future on the Services & subscriptions page.
   2. If you recently renewed using a product key (card/box from a store), make sure the key was actually redeemed; the subscription does not start until the key is entered.
   3. If the subscription is active but Outlook still shows expired, contact Microsoft Support from the subscription/billing pages so they can check the account status.

While the issue is being resolved, email can still be accessed using Outlook on the web via https://www.office.com if the account is active.

References:

• Microsoft 365 Apps activation Subscription expired error
• A subscription notice appears when I open a Microsoft 365 application
• Office error "Account Notice: We've run into a problem with your Microsoft 365 subscription"
• Pay for a past-due Microsoft subscription