You cannot change your account number online, and your bank will not let you do it yourself at all
Your account number is tied to your deposit history, your routing number, and every transaction record your bank holds. Changing it means creating a new account entirely. Banks do not offer a self-service option for this because the process involves closing one account, opening another, and updating every payment and deposit that flows to you.
If you need a new account number, you will contact your bank by phone or in person. The bank will close your current account (or keep it open if you ask), open a new one, and give you the new number. The whole conversation takes about 15 minutes. You then have to notify anyone who sends you money regularly—your employer, your benefits programs, your creditors—so they use the new number going forward.
Key Takeaways
- Account numbers cannot be changed through online banking; you must call your bank or visit a branch to request a new account.
- Changing your account number means closing one account and opening a new one, which your bank handles for you during the call.
- After you receive your new account number, you are responsible for notifying your employer, benefits programs, and anyone else who deposits money to you.
- Your old account can usually stay open for a short period so late deposits do not bounce, but you must ask the bank to keep it active.
- The process takes one business day to a few days depending on your bank; the new account is usually ready to use when ready.
Why you might need a new account number
The most common reason is fraud or unauthorized access. If someone has your account number and you believe they are using it, a new number stops them from making further transfers or setting up automatic payments to that account. Your bank will investigate the fraudulent transactions, but a new account number prevents ongoing damage while the investigation happens.
You might also want a new number if you are leaving a joint account and need your own separate account, or if you are closing an old account and want a fresh start with a new one. Some people request a new number after a data breach at their bank, though this is less common because the breach itself does not mean your current account is compromised.
How to request a new account number from your bank
Call your bank's customer service line or visit a branch in person. Have your account number, Social Security number, and a form of ID ready. Tell the representative you need a new account number and briefly explain why—fraud, security concern, or account closure. They will ask a few verification questions to confirm you are the account holder.
The representative will then open a new account with the same account type (checking, savings, or both) and give you the new number on the spot. Some banks print a temporary debit card or send one by mail; others let you use the new number when ready for transfers and direct deposits even if the physical card arrives later. Ask whether you can use the new number right away or if you need to wait for a card.
If you want your old account to stay open for a few days to catch any late deposits or automatic payments that have not yet posted, tell the bank. Otherwise, they will close it when ready. If you close it right away and a payment tries to post to the old number, it will bounce and may trigger an overdraft fee or a missed payment on the creditor's end.
Updating your new account number with employers and payment sources
Once you have your new number, contact anyone who regularly deposits money to you. This includes your employer's payroll department, your state or federal benefits program (Social Security, unemployment, tax refunds), your bank's bill pay system if you use it, and any other regular deposits.
For your employer, you will usually fill out a new direct deposit authorization form with your new account and routing number. Payroll systems can take one to two pay cycles to update, so your first paycheck after the change might still go to the old account if it was already processed. For government benefits, the process varies: Social Security and SSI have online portals where you can update your account information yourself, while unemployment benefits usually require a phone call or a form submission to your state agency.
Do not assume a payment source will figure out the new number on its own. If you do not update it, the payment will fail and bounce back to the sender. This can delay your paycheck, cause your benefits to stop, or trigger late fees if a creditor's payment bounces.
What happens to your old account after the change
If you asked the bank to close it when ready, it closes the same day. Any deposits or payments that try to post to the old account after closure will bounce. If you asked the bank to keep it open for a grace period—usually 7 to 30 days depending on the bank—deposits will still post to it during that time, and you can transfer the money to your new account manually.
Once the old account is closed, the bank keeps the account number inactive for a period of time (usually several years) before it can be reassigned to someone else. This prevents confusion if a payment accidentally goes to the old number months later.
Fraud and account security after a number change
If you changed your account number because of fraud, the new number stops future unauthorized transactions to that account. However, the bank's fraud investigation into the old account continues separately. You may be refunded for fraudulent charges depending on your bank's fraud policy and how quickly you reported the fraud.
After you get your new account number, monitor it for the first few weeks to make sure only legitimate deposits and payments post to it. If you see unauthorized activity on the new account, contact your bank when ready. This is rare—fraudsters usually do not have access to your new number unless you gave it to them—but it can happen if the fraud was caused by a data breach at the bank itself rather than someone stealing your number directly.
Timeline and what to expect
The account change itself takes minutes. The bank opens the new account while you are on the phone or at the branch, and you have the new number when ready. However, the full process of updating all your payment sources takes longer.
Your employer's payroll system may take one to two pay cycles to switch over. Government benefits can take one to three weeks depending on the agency. Automatic bill payments you set up through your bank's bill pay system update when ready if you change them yourself online. The key delay is usually on the employer or benefits side, not the bank side.
Frequently Asked Questions
Will changing my account number affect my credit score?
No. Your credit score is tied to your Social Security number and your credit history, not your bank account number. Changing your account number does not appear on your credit report and has no effect on your credit.
Can I change my account number if I have pending transactions?
Yes, but you need to be careful. Any transaction that has not yet posted will try to go to your old account number. If the old account is closed, it will bounce. Ask your bank to keep the old account open for at least a week after the change so pending transactions can clear.
What if my bank charges a fee to change my account number?
Most banks do not charge a fee for this service. However, some banks may charge a small fee if you are not changing the account due to fraud. Ask before you request the change. If fraud is the reason, the bank should waive any fee.
Do I need to update my checks if I get a new account number?
Yes. Checks have your account number printed on them. If you have checks from your old account, they will not work with your new account number. Order new checks from your bank or a third-party check printer. Until they arrive, use your debit card or online transfers instead.
How long does it take for my new account number to work for direct deposits?
The new account is ready to receive deposits when ready after the bank opens it. However, your employer or benefits program may take one to three weeks to update their records. Your first payment after the change might still go to the old account if it was already processed before the update took effect.