How can I switch a personal account into a business account?

Your personal Microsoft account cannot be converted into a work account; purchase and configure a Microsoft 365 business subscription, connect Claude using the resulting work identity, and then migrate any data you want to retain.

1. Create the business subscription and account

1. Review the available Microsoft 365 business plans and select one that includes the Microsoft services you intend to connect to Claude.
2. Purchase the chosen plan. During setup, Microsoft creates:
   • A Microsoft 365 organization, also called a tenant.
   • A work account, initially resembling [Email].
   • An administrator role for the person purchasing the small-business subscription.
3. Complete the setup and optionally add a custom business domain.

Microsoft provides the plan selection, purchase, and setup paths in its switching procedure.[^1^](https://support.microsoft.com/accounts-billing/subscriptions/[Subscription ID] "Switch to a Microsoft 365 for business subscription")

This creates a separate identity rather than changing the type of your existing login. Personal accounts and work accounts are managed separately, and their account information is not synchronized.^2^

2. Connect the new account to Claude

Claude’s Microsoft 365 connector requires a work or school Microsoft account; personal accounts such as Outlook.com, Hotmail.com, and Live.com accounts are unsupported. A Microsoft Entra Global Administrator must also grant tenant consent for the connector.^3^

For a new one-person business tenant:

1. Sign in to Claude with the account that will use the connector.
2. Select the Microsoft 365 connector and sign in with the new work account, not the old personal account.
3. Complete the requested Microsoft permissions.
4. If Claude reports that administrator approval is required, sign in as the tenant’s Global Administrator and grant consent. With a small-business subscription, the purchaser is normally an administrator.^2^

Merely adding a business-looking email alias or custom domain to the personal account will not turn it into a work account.

3. Move data only if needed

The old and new accounts have separate storage and mailboxes. After verifying that the business account and Claude connection work:

• OneDrive: Sync both personal and business OneDrive accounts, then move the required files between their folders.
• Outlook: Export personal email, contacts, and calendars to a PST using the desktop Outlook application, then import that PST into the business mailbox. Outlook on the web cannot perform this migration.
• Teams: Add the work account through Profile icon → Add work or school account. Personal Teams chats are not migrated automatically; meetings must be recreated under the work account.^4^

Keep copies of important data until the migration has been checked.

4. Decide what to do with Microsoft 365 Personal

You can keep both subscriptions if you want personal files and business information separated. If the Personal subscription is no longer needed, cancel it or turn off recurring billing after completing and validating the migration.[^1^](https://support.microsoft.com/accounts-billing/subscriptions/[Subscription ID] "Switch to a Microsoft 365 for business subscription")

If the Personal subscription was purchased from Apple, Google, a retailer, or another third party, cancellation or switching must be handled through that provider.[^5^](https://support.microsoft.com/accounts-billing/subscriptions/[Subscription ID] "Switch between Microsoft 365 subscriptions")

References

1. [Switch to a Microsoft 365 for business subscription](https://support.microsoft.com/accounts-billing/subscriptions/[Subscription ID])
2. What's the difference between a Microsoft account and a work or school ...
3. Microsoft 365 connector - Claude.ai Documentation
4. Migrate data to my Microsoft 365 for business subscription
5. [Switch between Microsoft 365 subscriptions](https://support.microsoft.com/accounts-billing/subscriptions/[Subscription ID])