Where to change your USPS username

You change your USPS username through the USPS Informed Delivery portal or through USPS.com, depending on which account you need to update. If you use Informed Delivery — the free service that shows you mail arriving before it reaches your mailbox — you log in at informeddelivery.usps.com and change your username in account settings. If you have a business or shipping account on USPS.com, you make the change in your account profile there instead.

The process takes about five minutes and requires your current password. You cannot change your username to one that is already in use by another USPS account, and the new username must be between 6 and 32 characters long.

Key Takeaways

  • Informed Delivery usernames are changed at informeddelivery.usps.com under account settings, while USPS.com business accounts are changed in your profile on that site.
  • You need your current password to make the change, and your new username must be 6 to 32 characters and not already in use.
  • The change takes effect when ready, so write down your new username before you log out.
  • If you forget your new username after changing it, you can reset your password and create a new one through the login page.

Changing your Informed Delivery username

Log in to informeddelivery.usps.com with your current username and password. Once you are on your dashboard, look for a menu icon (three horizontal lines) in the top right corner or a "Settings" link, depending on whether you are on mobile or desktop. Click that and select "Account Settings" or "Profile Settings."

Find the field labeled "Username" and click the edit or pencil icon next to it. Type your new username into the box. The system will tell you when ready if the name is already taken. Once you have entered a username that is available, click "Save" or "Update." You will see a confirmation message. Log out and log back in with your new username to make sure the change worked.

Changing your USPS.com business account username

Go to USPS.com and log in with your current credentials. In the top right corner, click your name or account icon and select "My Profile" or "Account Settings" from the dropdown menu. Look for a section called "Login Information" or "Username and Password."

Click the edit button next to your username. Enter your new username and your current password to confirm the change. Click "Save" and wait for the confirmation message. Like Informed Delivery, the new username takes effect right away, so test it by logging out and logging back in.

What to do if you cannot find the username field

If you are looking at your account settings and do not see a username option, you may be in the wrong section. On USPS.com, some account types (like Click-N-Ship for occasional shippers) do not have a separate username field — they use your email address as your login instead. In that case, you cannot change your username because it is tied to your email.

For Informed Delivery, if you do not see account settings, try logging out completely and logging back in. Sometimes the menu does not load on the first try. If it still does not appear, try a different browser or clear your browser cache and try again.

If you forget your new username

You cannot look up a username you have forgotten on the USPS website. Instead, go to the login page for whichever service you use (informeddelivery.usps.com or USPS.com) and click "Forgot Username?" or "Forgot Password?" You will be asked to enter your email address. USPS will send you a password reset link, and you can create a new password and username combination at that time.

This process works whether you forgot your username, your password, or both. You will need access to the email address associated with your account to receive the reset link.

Why you might want to change your username

People usually change their USPS username for security reasons — if you think someone else knows your current username, or if you used a username that contains personal information like your birth year or full name. Changing it is faster than dealing with an account breach later.

You might also change it straightforward because you want something easier to remember, or because you have multiple USPS accounts and want usernames that are clearly different from each other. There is no limit to how many times you can change your username, so you can update it whenever you want.

Frequently Asked Questions

Can I change my username without knowing my password?

No. You need your current password to change your username as a security measure. If you do not know your password, use the "Forgot Password?" link on the login page to reset it first, then change your username.

Will changing my username affect my mail delivery or account history?

No. Your username is only what you use to log in. Changing it does not affect your address, your mail, your account balance, or any history USPS has on file. Everything else stays exactly the same.

How long does it take for my new username to work?

The change is when ready. You can log out and log back in with your new username right away. If you try to log in and it does not work, wait a few minutes and try again — sometimes there is a short delay, but it should work within five minutes.

Can I use special characters or spaces in my username?

No. USPS usernames can only contain letters, numbers, and underscores or hyphens. Spaces and special characters like @, #, or ! are not allowed. Stick to letters and numbers for the simplest option.

What if I change my username and then cannot log in?

First, make sure you are typing the new username exactly as you entered it — usernames are case-sensitive, so "MyUsername" is different from "myusername." If that does not work, use the "Forgot Username?" option to reset your password and create a new login combination.