Where to sign in to Office 365 for business

Sign in at: www.office.com/signin

Note: 
For Office 365 operated by 21Vianet in China, sign in with your work or school account at https://login.partner.microsoftonline.cn.
For Office 365 Germany, sign in with your work or school account at https://portal.office.de.

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, Office 2016, or Office 2013 on your PC or Mac

Expand your skills
Explore training
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Join Office Insiders

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