You can request a new checking account number from your bank, but the process and reasons vary by institution

Most banks will issue you a new account number if you ask, though some require a reason and others charge a fee. The change itself takes a few days to a few weeks depending on your bank's systems. You keep the same routing number — that identifies your bank branch and does not change when you get a new account number.

The main reason people request a new account number is security: if you believe your number has been compromised or used without permission, a new number stops further unauthorized transactions. Some people also request one after repeated fraud attempts, or if they want to close an old account and start fresh without closing the entire relationship with the bank.

Before you request the change, understand what happens next: any automatic payments or direct deposits tied to your old number will fail unless you update them first. Your employer, creditors, subscription services, and any other organization sending money to that account will need the new number.

Key Takeaways

  • Your bank can issue a new account number, but you must update all automatic payments and direct deposits before the change takes effect.
  • The routing number stays the same when you get a new account number — the routing number identifies your bank branch, not your individual account.
  • Processing time ranges from a few days to two weeks depending on your bank, and some institutions charge a fee for the change.
  • If fraud or unauthorized access is the reason, contact your bank immediately and ask about dispute procedures while the new number is being issued.

Why banks allow account number changes and what they require

Banks treat account number changes as a standard service, though the process differs. Some banks allow you to request one online through your account settings, others require a phone call to customer service, and a few require you to visit a branch in person. A handful of banks will not change the number at all — they will close the account and open a new one instead, which is functionally the same but creates a new account number in their system.

Most banks do not charge for a routine account number change, but some do — typically $10 to $25. Banks that charge usually do so because the change requires manual work by their back-office team. If your reason is fraud or security breach, many banks waive the fee. Ask before you request the change.

Your bank may ask why you want the change. "Security" or "fraud concerns" are reasons they understand and often prioritize. If you simply want a different number for personal preference, some banks will still do it, but others may decline or suggest closing and reopening the account instead.

What to do before requesting the change

Before you contact your bank, make a list of every organization that receives money from or sends money to your current account. This includes your employer (direct deposit), government agencies (tax refunds, Social Security, unemployment), insurance companies (premium payments), subscription services, loan servicers, and any other recurring transactions. You will need to update all of them with your new account number once the change is complete.

Contact each organization and ask how to update your banking information. Some allow you to do this online through your account portal, others require a phone call, and a few require a written form. Start this process before you request the account number change from your bank, so you know exactly what you are dealing with.

If you have checks printed with your old account number, you will need to order new ones or stop using the old ones. Checks printed with your old account number will not work once the change takes effect. Some banks will print new checks at no charge when you change the account number; others charge the standard check printing fee.

The timeline for a new account number

Most banks issue a new account number within 3 to 10 business days. Some larger banks can do it in 1 to 2 business days if you request it in person or over the phone. A few banks take up to two weeks if the change requires manual processing by their operations team.

Your bank will tell you the effective date when the change takes place. On that date, your old account number stops working and your new one becomes active. Any automatic payments or direct deposits using the old number will bounce or fail on that date, so you must update them beforehand.

If you are waiting for a refund or payment to arrive at your old account number, contact the organization sending the money and ask them to reissue it to your new number. This is especially important for tax refunds, insurance refunds, or government payments — these can take weeks to reissue once you notify the agency of the change.

What to do if fraud is the reason for the change

If your account number has been used without permission or you suspect unauthorized access, contact your bank immediately — do not wait. Tell them you believe your account number has been compromised and ask what steps they recommend. Most banks will freeze the account, review recent transactions, and begin a dispute process for unauthorized charges while they issue a new account number.

Your bank may reverse fraudulent charges while the new account number is being processed, but this depends on the type of fraud and your bank's policies. Ask specifically what they will cover and what documentation they need from you. Keep records of all unauthorized transactions and any communication with the bank.

Once you have a new account number, monitor your old account for a few weeks to make sure no new fraudulent activity appears. Some banks will close the old account automatically after a set period; others leave it open. Ask your bank what their standard practice is.

Updating direct deposits and automatic payments

Direct deposit from your employer is usually the most time-sensitive update. Contact your employer's payroll or HR department and provide your new account number and routing number. Ask them to confirm the change has been entered into their system before your next pay date. If the change does not process in time, your paycheck may be delayed or rejected.

For automatic bill payments, log into each creditor's website or call them directly. Provide your new account number and ask them to update their records. Some organizations allow you to make this change online; others require a phone call. Ask for confirmation that the change has been processed and when it will take effect.

Government payments like tax refunds, Social Security, or unemployment benefits require updating through the agency's website or by phone. The IRS allows you to update your direct deposit information on their website; Social Security requires a phone call to 1-800-772-1213. If you have already filed a tax return with your old account number, contact the IRS to request a reissue to your new number — this can add several weeks to your refund timeline.

What happens to your old account number

Once your new account number is active, your old number is deactivated. Your bank will not reissue that number to another customer for a set period — usually several years — to prevent confusion or misdirected payments. The old account may remain open in your bank's system for record-keeping purposes, or it may be closed automatically after 30 to 90 days of inactivity.

Any payments or deposits sent to your old account number after the change date will be rejected or returned to the sender. If someone sends you money to the old number by mistake, contact your bank to see if they can redirect it, but this is not may provide. The safest approach is to notify everyone of the change before it takes effect.

Frequently Asked Questions

Does my routing number change when I get a new account number?

No. Your routing number identifies your bank and branch and remains the same. Only your account number changes. You need both numbers for direct deposits and automatic payments, so make sure you provide the correct routing number when you update your information with employers and creditors.

Can I request a new account number online, or do I have to call the bank?

It depends on your bank. Some banks allow account number changes through their online portal or mobile app; others require a phone call to customer service or a visit to a branch. Contact your bank to find out which method they use. If you are concerned about fraud, calling is usually faster.

Will my old checks still work after I get a new account number?

No. Checks are printed with your account number, and once your account number changes, the old checks will be rejected. You will need to order new checks with your new account number. Ask your bank if they will print them at no charge as part of the account number change.

What if I forget to update my direct deposit before the account number changes?

Your paycheck will be rejected and returned to your employer. Contact your employer's payroll department immediately and provide your new account number. They can resubmit the deposit, but it may take an extra pay cycle to process. Update your information as soon as possible to avoid missing a paycheck.

How long does it take to update my information with the IRS if I filed a tax return with my old account number?

Contact the IRS at 1-800-829-1040 to request a reissue of your refund to your new account number. Processing time varies, but reissued refunds typically take 4 to 6 weeks. If your refund was already issued to your old account, the bank may still deposit it even after the account number changes, depending on the bank's policies.