You can add a second email to one Microsoft account, but it works differently depending on what you want to do
Microsoft accounts let you add a secondary email address to the same login, but that secondary email cannot be used to sign in. Instead, it becomes an alias — a way to receive password reset codes, security notifications, and account recovery messages. If you want to sign in with two different emails, you need two separate Microsoft accounts linked together, not one account with two emails.
The distinction matters for banking and payment systems. If you use your Microsoft account to access online banking, payment apps, or digital wallets, adding a secondary email keeps everything under one login. But if you want two independent sign-in methods, you are creating a second account entirely, which means separate passwords, separate recovery options, and separate payment histories.
Key Takeaways
- A secondary email added to your Microsoft account cannot be used to sign in — it only receives notifications and recovery codes sent to your primary email.
- If you want to sign in with either of two different emails, you need two separate Microsoft accounts, not one account with two emails.
- Adding a secondary email takes minutes and requires access to both email addresses to confirm ownership.
- For banking and payment apps, using one account with a secondary email keeps your transaction history and payment methods in one place.
- Removing a secondary email is permanent and cannot be undone for 30 days if you want to add it to a different account.
How to add a secondary email to your existing Microsoft account
Go to account.microsoft.com and sign in with your current email and password. Click Your info in the left menu, then look for the section labeled Email and phone or Manage how you sign in. Click Add email or Add alias (the exact wording varies by region).
Enter the second email address you want to add. Microsoft will send a confirmation code to that email. Open the inbox of the second email, find the message from Microsoft, and enter the code back into the account settings page. Once confirmed, the second email becomes an alias on your account.
After this is complete, you still sign in using your original email and password. The secondary email receives account notifications, password reset codes, and security alerts. You cannot use it to sign in directly.
When you actually need two separate Microsoft accounts
If you want to sign in to Microsoft services using either email address — meaning you want two independent logins — you need two separate accounts. This is common when someone has a work email and a personal email, or when they want to keep banking activity completely separate from other online activity.
To create a second account, go to signup.live.com and register using the second email address. You will create a new password for this account. The two accounts are now independent: different sign-ins, different passwords, different recovery options, and different payment methods if you use either account for banking or purchases.
If you later want to link these two accounts so you can switch between them without signing out, Microsoft offers an account linking feature in some regions. This is different from adding an alias — it lets you access both accounts from one sign-in screen, but they remain separate accounts with separate data.
What happens to your banking and payment information
If you use your Microsoft account to sign into online banking, a payment app, or a digital wallet, adding a secondary email does not split your payment methods or transaction history. Everything stays linked to your primary email and your one account login.
If you create a second Microsoft account instead, your banking and payment apps will not automatically transfer to it. You would need to sign into each app separately using the second account, and you would be setting up new payment methods from scratch. Your transaction history from the first account stays with the first account.
For most people managing bank accounts, keeping one Microsoft account with a secondary email is simpler than maintaining two accounts. The secondary email still receives all security notifications, so you have backup contact information if you lose access to your primary email.
Removing or changing a secondary email
If you want to remove a secondary email from your account, go back to account.microsoft.com, click Your info, find the secondary email in the email and phone section, and select Remove. The removal takes effect immediately.
If you removed a secondary email and want to add it to a different Microsoft account, you must wait 30 days. During that waiting period, the email address is locked and cannot be added to any account. After 30 days, it becomes available again.
You can change which email is your primary at any time. If you have a secondary email and want to make it your primary instead, go to the email and phone section and select Make primary. Your original primary email then becomes the secondary.
Security considerations when using multiple emails
Adding a secondary email to your account gives you a backup way to recover access if you lose your primary email. Microsoft can send password reset codes to either email, so if your primary email is compromised, you can still regain control using the secondary.
Keep both email addresses secure and monitored. If someone gains access to either email, they can potentially reset your Microsoft account password. Use strong, unique passwords for both email accounts, and enable two-factor authentication on both if the email providers support it.
If you are using your Microsoft account for banking or payments, treat the secondary email with the same care as the primary. Both are recovery paths to your financial accounts.
Frequently Asked Questions
Can I sign in to Microsoft with my secondary email?
No. A secondary email is an alias only — it receives notifications and recovery codes, but you cannot use it to sign in. If you need to sign in with a different email, you must create a separate Microsoft account.
If I add a secondary email, will my bank see both emails?
No. Your bank sees only the email address you used to register for online banking. Adding a secondary email to your Microsoft account does not change what your bank has on file. The secondary email is internal to Microsoft only.
What if I forget which email is my primary?
Go to account.microsoft.com, sign in, and click Your info. The email listed first in the email and phone section is your primary. The one marked as an alias is secondary.
Can I have more than one secondary email?
Yes. You can add multiple secondary emails to a single Microsoft account. Each one receives notifications and can be used for account recovery, but only your primary email can be used to sign in.
If I delete my secondary email, can I add it back later?
You can add it back after 30 days. During the first 30 days after removal, the email is locked and unavailable. After that period, you can add it to the same account or to a different account.