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How to Create Microsoft Account Aliases

Richard
Written by
Richard
Aug 28, 2023 Updated Jul 13, 2026 4 min read
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Microsoft account aliases are extra email addresses or phone numbers you can link to your main Microsoft account. This lets you sign in to Microsoft services using different ways, keeping all your related information together.

Think of them as different doors to the same house. You can create a new Outlook.com alias specifically for a new subscription service, like Xbox Game Pass, to keep track of it easily.

These aliases help you organize your online life by giving you distinct sign-in options for different activities, such as using one for work and another for personal use.

Using aliases also acts as a backup. If you ever forget your main login details, you can use an alias to get back into your account.

⚡ Quick Answer

Go to the Microsoft account management page and click “Add email” or “Add phone number.” Enter your desired alias and click “Add alias.” You can then manage your primary alias in the “Manage how you sign in” section.

How to Add an Alias

Adding a Microsoft account alias lets you use a different email address or phone number to sign in to your Microsoft account. This is helpful if you want to keep personal and work emails separate or use a new email. To add an alias, go to the Microsoft account management page and click ‘Add email’ or ‘Add phone number’.

  1. Click the Add email link. If you prefer to use a phone number, select Add phone number instead.
  • Go to the official Microsoft account management page.
  • Click ‘Add email’ or ‘Add phone number’.
  • Enter your new email address or phone number.
  • Click ‘Add alias’ to save it.
  • Create an alias in Microsoft account
    Create an alias in Microsoft account
    1. Type in your new email address or phone number.
    2. Click the Add alias button to save it.
  • Go to the official Microsoft account management page.
  • Click ‘Add email’ or ‘Add phone number’.
  • Enter your new email address or phone number.
  • Click ‘Add alias’ to save it.
  • Create an alias in Microsoft account
    Create an alias in Microsoft account

    If the name is already taken, an error message appears. If it’s available, it’s added immediately.

    Managing Your Primary Alias

    Your primary Microsoft account alias is the main email or phone number that others see and that you use to sign in everywhere. You can change which alias is primary if needed, but you can only do this twice a week. To manage this, go to the ‘Manage how you sign in’ section on your Microsoft account page and select ‘Make primary’ next to your chosen alias.

    1. Go to the Manage how you sign in section.
    2. Find your preferred alias in the list.
    3. Click Make primary next to that address.
  • Go to the ‘Manage how you sign in’ section on your Microsoft account page.
  • Select ‘Make primary’ next to your chosen alias.
  • Create an alias in Microsoft account
    Create an alias in Microsoft account
    ⚠️Warning
    Heads up: You can only change your primary alias twice each week.

    Business vs. Personal Accounts

    Microsoft account aliases work differently for personal and business accounts. Personal accounts let you add aliases easily, but business accounts often require an administrator to manage them through the Microsoft 365 Admin Center.

    Troubleshooting and Security

    If you’re having trouble with Microsoft account aliases, check that you’re not using a restricted domain (like certain company email addresses) and ensure your account syncs correctly in Windows Settings. Remember, removing a Microsoft domain alias is permanent.

    Summary

    ⚠️Warning
    Managing Microsoft account aliases helps you organize how you sign in. Whether you need a fresh start or a way to consolidate multiple identities, aliases offer the flexibility you need. Always remember that removing a primary Microsoft alias is permanent. For more details, visit the official Microsoft support page.

    Can I use an existing email address as an alias?

    Yes, you can add an existing email address from another provider (like Gmail or Yahoo) as an alias. Just remember, you can’t use an email address that’s already tied to another Microsoft account. After adding it, you can use that alias to sign in to your Microsoft services.

    Does deleting an alias delete the email account?

    If you remove a Microsoft-provided alias (like @outlook.com), it is permanently deleted and cannot be recovered. If you remove a third-party email alias, you simply lose the ability to sign in with that address, but the original email account remains active elsewhere.

    How many aliases can I have on one Microsoft account?

    You can have up to 10 aliases on a single Microsoft account at any given time. If you reach this limit, you must remove an existing alias before you can add a new one. This helps prevent account clutter and maintains security.

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    Richard

    About the Author

    Richard

    Tech Writer, IT Professional

    Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.

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