Yes, you can change your mobile number online at most banks
Most banks let you update your phone number through their online banking portal, mobile app, or by calling customer service. The process takes minutes and does not require a branch visit. You will need to log into your account, find the profile or settings section, and enter your new number. Some banks send a verification code to your old number or email to confirm the change before it takes effect.
The exact steps vary by bank. Chase, Bank of America, Wells Fargo, and most regional banks offer this through their apps or websites. Credit unions typically have the same option. If your bank does not have an online option, you can call the number on the back of your card or visit a branch in person.
Key Takeaways
- Log into your bank's app or website, go to account settings or profile, and look for the phone number field to make the change yourself.
- Your bank will likely send a verification code to your old phone number or email address to confirm the update is really you.
- The change usually takes effect immediately, but some banks process it within one business day.
- If you no longer have access to your old phone number, call customer service or visit a branch with a photo ID to verify your identity another way.
- Update your phone number before you lose access to your old device, because banks use it to send fraud alerts and two-factor authentication codes.
Where to find the phone number field in your bank's app or website
Log into your account and look for a section labeled "Profile," "Settings," "Account Information," or "Personal Details." This is usually in the top right corner or in a menu. Once you open it, you should see your current phone number listed. Click or tap the edit button next to it, delete the old number, and type in your new one.
If you cannot find it in the app, try the website version of your bank's portal — some banks hide this option in one place but not the other. If you still cannot locate it after checking both, call the customer service number on the back of your card. A representative can walk you through it or make the change for you over the phone.
How your bank verifies the change
After you enter your new number, your bank will send a verification code to either your old phone number, your email address, or both. You will need to enter this code back into the app or website to confirm the change. This protects your account — it ensures someone who gained access to your online banking cannot silently change your phone number to lock you out.
If your bank sends the code to your old number and you no longer have that phone, you will need to call customer service or visit a branch. Bring a photo ID. The bank will verify your identity using security questions, your Social Security number, or other information on file, then update your number without the code.
When the change takes effect
Most banks update your phone number immediately after you enter the verification code. You can start receiving text messages and calls from your bank on the new number right away. A few banks process the change within one business day, so check your confirmation email to see what your bank says.
Until the change is complete, your bank will still send alerts and two-factor codes to your old number. If you have already switched phones or cancelled your old plan, tell your bank before you make the change so they can use your email address for verification instead.
What to do if you cannot access your old phone number
If you have already switched to a new phone and no longer have the old number, call your bank's customer service line. Have your photo ID ready. The representative will ask security questions to verify you are the account holder, then update your number without needing the verification code.
Some banks also let you update your phone number at a branch in person. Bring your ID and debit card. This is the slowest option but works if you cannot reach customer service by phone or if the phone line is having trouble verifying your identity.
Why updating your phone number matters for security
Your bank uses your phone number to send fraud alerts when unusual activity happens on your account. If someone tries to log in from a new device or location, your bank may text a code to your phone to confirm it is really you. If your phone number is outdated, you will not receive these alerts or codes, and a fraudster could lock you out of your own account.
Two-factor authentication codes also go to your phone. If you set up two-factor authentication and your phone number is wrong, you will not be able to log in. Update your number as soon as you change phones to avoid being locked out of your account when you need it most.
Changing your phone number for specific services linked to your account
Some banks let you set different phone numbers for different purposes. For example, you might want fraud alerts to go to your personal phone but bill pay notifications to go to your work phone. Check your bank's settings to see if this option is available. It is usually in the same profile or settings section where you update your main phone number.
If you use your bank's mobile app and have push notifications turned on, you do not need to update your phone number for those alerts — they come through the app itself. But text messages and calls will still use the phone number on file, so keep that current.
Frequently Asked Questions
How long does it take to change my phone number online?
The change usually takes a few minutes to complete. After you enter the verification code, most banks update your number immediately. A small number of banks process it within one business day. Check your confirmation email to see what your bank says.
Will changing my phone number affect my debit card or online banking access?
No. Changing your phone number does not affect your ability to use your debit card or log into online banking. It only updates how your bank contacts you and how you receive two-factor codes. You will still be able to log in and use your account normally.
What if I change my phone number but forget to tell my bank?
Your bank will continue sending alerts and two-factor codes to your old number. If you lose access to that number, you may not receive fraud alerts or login codes. Update your number as soon as you switch phones to avoid being locked out or missing security alerts.
Can I change my phone number if I have a joint account?
Yes, but the change usually applies only to your own contact information, not your co-owner's. If both account holders need to update their phone numbers, each person logs in separately and updates their own. Check with your bank if you are unsure how it works on your joint account.
Do I need to update my phone number at multiple banks if I have more than one account?
Yes. Each bank keeps its own records. If you have accounts at Chase, Bank of America, and a credit union, you will need to update your phone number at each one separately. Make a list and work through them one at a time to make sure you do not miss any.