You cannot change your account number with your bank — you close the old account and open a new one

Banks do not reassign account numbers to existing customers. Your account number is tied to your account's history, your routing number, and the bank's internal systems. If you want a different number, you will need to close your current checking account and open a new one at the same bank or a different bank.

This matters most when you are waiting for refunds, direct deposits, or payments. Changing your account number means updating it everywhere it is on file — with your employer, the IRS, insurance companies, and any other organization sending you money. If you do not update it before a payment arrives, the money may go to your old account, which you can no longer access.

Key Takeaways

  • Your bank cannot change your account number; you must close the old account and open a new one.
  • Before closing an account, make sure no pending refunds, direct deposits, or automatic payments are headed to that account number.
  • Update your new account number with your employer, the IRS, insurance companies, and any other organization that sends you money.
  • Keep your old account open for at least 30 days after the last expected payment arrives, in case a deposit lands there by mistake.
  • If money does arrive at your closed account, contact your bank immediately — they may be able to redirect it to your new account.

Why you might want to change your account number

The most common reason is security. If your account number has been compromised — you gave it to a scammer, it was exposed in a data breach, or someone made unauthorized withdrawals — closing the account and opening a new one stops further damage. Your bank will investigate the fraudulent transactions, but a new account number prevents the person from using the old number again.

Another reason is organizational. Some people open a new account to separate spending from savings, or to move to a bank with better features or lower fees. In these cases, you are choosing to change, rather than responding to a security problem.

A third reason is that you are waiting for a refund or payment and you want to make sure it goes to a specific account. You cannot change the number on an existing account, but you can open a new account and update the number before the payment is sent.

Steps to close your old account and open a new one

Step 1: Check for pending money. Before you close anything, contact your bank and ask whether any direct deposits, refunds, or automatic payments are scheduled to hit your account in the next 30 to 60 days. Ask specifically about tax refunds, stimulus payments, insurance refunds, and payroll deposits. If any are coming, wait until they arrive before closing the account.

Step 2: Update your account number everywhere it is on file. Contact your employer's payroll department and give them your new account number and routing number. Update your account information with the IRS (through your online tax account or by calling 800-829-1040), your state tax authority, your insurance companies, your bank's bill pay system, and any other organization that sends you money. Do this before you close the old account.

Step 3: Set up your new account. If you are opening an account at the same bank, you can often do this online or at a branch. If you are switching banks, you will need to open the account first, then close the old one. Make sure you have your new account number and routing number before you start updating it elsewhere.

Step 4: Close the old account. You can close most checking accounts by phone, online, or in person at a branch. The bank will ask whether you have any outstanding checks or automatic payments tied to the account. Tell them you have already updated your information elsewhere. Ask them to confirm the account is closed and get a confirmation number.

Step 5: Monitor the old account for 30 days. Even after you close it, keep the account information handy. If a payment arrives at the old account by mistake, your bank may be able to redirect it to your new account — but only if you catch it quickly. Check your old account online or call the bank weekly for the first month.

What to do if a refund or payment goes to your closed account

If money arrives at an account you have already closed, call your bank immediately. Explain that you closed the account and a deposit arrived there by mistake. The bank can sometimes reverse the deposit and send it to your new account, but this works best if you catch it within a few days.

If the bank cannot redirect it, ask them for the name and phone number of the organization that sent the money. Then contact that organization directly — your employer, the IRS, your insurance company, or whoever sent the payment. Provide them with your new account number and ask them to reissue the payment. This usually takes one to two weeks.

If the money was a tax refund, you can also check the status of a reissued refund by going to IRS.gov and using the "Where's My Refund?" tool. If it was a state tax refund, visit your state's tax authority website.

Timing: when to close your account if you are waiting for money

If you are waiting for a tax refund, stimulus payment, insurance refund, or other payment, do not close your account until the money has arrived and cleared. Tax refunds typically take 21 days from the IRS, but can take longer if there are errors on your return. Insurance refunds vary by company — some take one to two weeks, others take a month or more.

Once the money arrives, wait another 5 to 7 business days for it to clear completely. Then you can safely close the old account and open a new one. If you are in a hurry, open the new account first, update your information with the organization sending the money, and then close the old account once the payment has arrived at the new one.

Account number vs. routing number: which one changes

When you close an account and open a new one at the same bank, your routing number stays the same but your account number changes. The routing number identifies the bank and branch; the account number identifies your specific account within that bank.

If you switch to a different bank entirely, both your routing number and account number will change. You will need to update both everywhere they are on file. When you open your new account, the bank will give you both numbers — make sure you have them before you start updating your information with employers, the IRS, and other organizations.

Frequently Asked Questions

Can I change my account number without closing my account?

No. Banks do not reassign account numbers to existing accounts. Your account number is permanent for that account. If you need a different number, you must close the account and open a new one.

What happens to checks I wrote from my old account after I close it?

Checks remain valid for six months from the date written. If someone tries to cash a check from your closed account, the bank will reject it and mark it as "account closed." Make sure you have stopped using checks from the old account before you close it, or notify anyone who has a check that the account is closing.

How long does it take to open a new checking account?

Most banks can open a new account online or at a branch in the same day. You will receive your new account number immediately, though your debit card may take 5 to 10 business days to arrive. You can start using the account for direct deposits and transfers as soon as it is open.

If I close my account, can I reopen it later?

Some banks allow you to reopen a closed account within a certain window — usually 30 to 90 days — but this varies by bank. It is safer to assume the account is permanently closed and open a new one if you need to continue banking there. Ask your bank about their specific policy before you close.

Do I need to update my account number with the IRS if I am waiting for a refund?

Yes, if the refund has not been issued yet. Check the status of your refund on IRS.gov using "Where's My Refund?" before you close your account. If the refund shows "approved" or "sent," wait for it to arrive before closing. If it has not been issued yet, update your account number through your IRS online account or by calling 800-829-1040.