Where to sign in to Office 365 for business

Office 365 for business portal

Sign in with your work or school account at https://www.office.com/signin

Sign in with your work or school account at https://login.partner.microsoftonline.cn

Sign in with your work or school account at https://portal.office.de

Office 365 Admin Center

Sign in with your Office 365 admin account at https://aka.ms/admincenter

Sign in with your Office 365 admin account at https://portal.partner.microsoftonline.cn/AdminPortal

Sign in with your Office 365 admin account at https://portal.office.de/adminportal

Note: Only Office 365 admins can access the Office 365 Admin Center. If you signed in to the Admin Center and get the message, "You don’t have permission to access this page or perform this action" then you aren't an Office 365 admin.

Switch between accounts

If you're already signed in with one account, for example, you're signed in with a Microsoft account and you want to sign in with a work or school account instead, or vice versa, do the following:

  • Sign out of the account you're signed in with, and then sign in with the new account. Or,

  • Open a private browsing session in a new browser window. Search your web browser's help if you're not sure how to do this.

What if my password doesn't work or I still can’t sign in?

See I can't remember the account or password I use with Office and select the tab for your Office product.

See Also

Download and install or reinstall Office 365 on your PC or Mac

Get support
Contact us
Expand your Office skills
Explore training

Was this information helpful?

Thank you for your feedback!

Thank you for your feedback! It sounds like it might be helpful to connect you to one of our Office support agents.

×