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Sign in to Office

Signing in to Office lets you create, edit, and share your files. After signing in, you're automatically signed in to online services like Office Online or OneDrive. Forgot your account or password?

Note: When you install Office 365, you'll be prompted to sign in to activate Office. To learn more, see How sign in works in Office 365.

From Office for PC

  1. If you're not already in an Office file or document, open an app such as Word or Excel, and open an existing file, or create a new one.

  2. Select File > Account (or Office Account if you're using Outlook). If you're not already signed in, click Sign In.

  3. In the Sign in window, type the email address and password you use with Office. This might be the personal Microsoft account you associated with Office, or the username and password you use with your work or school account.

Sign in with your Microsoft Account or Office 365 work or school account.

From Office for Mac

  1. Open any Office app such as Word and select Sign In. If you're already editing a file, go to File > New from Template... > Sign In.

    Note: If you're on OneNote, select OneNote from the top menu and then select Sign In.

  2. In the Sign in window, type the email address and password you use with Office. This might be the personal Microsoft account you associated with Office, or the username and password you use with your work or school account.

Sign In with your Microsoft Account or Office 365 work or school account.

On Office Online

  1. Go to www.Office.com and in the upper right-hand corner select Sign In.

  2. Enter your email address and password. This might be your personal Microsoft account, or the username and password you use with your work or school account. The name of the account you're signed in with is displayed in the header.

  3. Select the App Launcher The app launcher icon in Office 365 and then select any Office app to start using it.

The Office app launcher

On Office mobile apps

For iPhones and iPads:   

  1. Open the Office app. On the Account screen, tap Sign In.

  2. On the Sign In screen, type the email address and password you use with Office. This might be the personal Microsoft account you associated with Office, or the username and password you use with your work or school account.

Sign in with your Microsoft Account or Office 365 work or school account.

For Android or Chromebooks:   

  1. Open the Office app. On the Recent screen, tap Sign In.

  2. On the Sign In screen, type the email address and password you use with Office. This might be the personal Microsoft account you associated with Office, or the username and password you use with your work or school account.

Sign in with your Microsoft Account or Office 365 work or school account.

For Windows Phone:   

  1. Open the Office app > tap Sign In.

  2. On the Sign In screen, type the email address and password you use with Office. This might be the personal Microsoft account you associated with Office, or the username and password you use with your work or school account.

Sign in with your Microsoft Account or Office 365 work or school account.

Switch between accounts

If you're already signed in with your Microsoft account and you want to sign in with your work or school account instead, or you're signed in with someone else's account and you want to sign into your own, do the following:

From your browser   

  • From the upper-right corner, select your name and sign out of the account you're signed in with, and then sign in with the other account.

    - OR -

  • Open a private session in your web browser. For example, in Internet Explorer or Edge, use InPrivate; in Chrome, use the incognito window; or in Firefox, use New Private Window.

From within an Office desktop app   

  1. In an app such as Word or Excel, select File > Account.

  2. Select Switch account.

    Screenshot showing how to switch accounts in Account info

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