TurboTax validates your account number format, but not whether the account exists
TurboTax checks that your routing and account numbers follow the correct format — the routing number should be nine digits, and your account number should match the length your bank uses. It will flag obvious errors like letters in a routing number or an account number that is too short. What TurboTax does not do is contact your bank to confirm the account is real, active, or in your name.
This matters because a typo in your account number will pass TurboTax's checks and still cause your refund to fail. The IRS will attempt the deposit, the bank will reject it because the account does not exist or the number does not match their records, and your refund will be returned to the IRS. You will then have to wait for a paper check or contact the IRS to correct the account information.
The validation TurboTax performs is a basic safety net, not a may provide. You are responsible for entering the correct information.
Key Takeaways
- TurboTax checks that routing numbers are nine digits and account numbers match your bank's format, but does not verify the account actually exists.
- A single wrong digit in your account number will pass TurboTax's validation and cause your refund deposit to fail at the bank.
- You should verify your routing and account numbers against a check, your bank's website, or a call to your bank before submitting your return.
- If your refund is rejected because of an account number error, the IRS will mail you a paper check instead, which takes several weeks longer.
How TurboTax's validation works
TurboTax uses a checksum algorithm to validate routing numbers. This is a mathematical formula that checks whether the nine digits follow a valid pattern. If you enter a routing number that does not pass this test, TurboTax will show an error and ask you to correct it. The same applies to account numbers — TurboTax confirms the length is reasonable for your bank type (checking, savings, or money market).
This validation catches typos and obvious mistakes. It does not, however, check whether the routing number belongs to a real bank or whether the account number matches an actual account at that bank. TurboTax has no connection to your bank and cannot look up that information.
Why a wrong account number still gets through
If you transpose two digits in your account number — say you write 1234567 instead of 1234576 — TurboTax will accept it because the format is correct. The IRS will receive your return with the wrong account number and attempt to deposit your refund. Your bank will reject the deposit because that account does not exist or does not match their records. The IRS will then return the refund to their system and mail you a paper check instead.
This process takes time. A rejected direct deposit can add two to four weeks to your refund timeline, since the IRS has to process the rejection, generate a check, and mail it to you.
How to verify your account information before you file
The safest way to avoid this problem is to check your routing and account numbers against a source your bank controls. You have three options:
- Look at a check. Your routing number is the first nine digits at the bottom left of the check. Your account number is the second set of digits, after the routing number.
- Log into your bank's website or app. Most banks display your routing number and account number in the account details or settings section. Some banks call this "bank information" or "account information".
- Call your bank. Ask for your routing number and account number. Confirm the spelling and digits before you hang up.
Write down both numbers exactly as they appear, then enter them into TurboTax. Do not rely on memory or a number you entered for a different purpose — banks sometimes use different routing numbers for different services.
What happens if the IRS rejects your direct deposit
If your refund is rejected because of an account number error, the IRS will not contact you immediately. You may not realize there is a problem until you check your account and see that the deposit never arrived. The IRS will then mail you a paper check to the address on your return.
You can check the status of your refund using the IRS's "Where's My Refund?" tool on IRS.gov. If the status changes to "Return Received" or "Refund Issued" but the deposit does not appear in your account after five business days, contact your bank to ask whether a deposit was rejected. If it was, ask your bank for the rejection reason. Then contact the IRS at 1-800-829-1040 to report the error and request a corrected deposit or a replacement check.
Correcting account information after you file
If you realize you made a mistake after you have already filed, do not file an amended return. Instead, contact the IRS directly. You can call 1-800-829-1040 and speak to a representative who can update your account information in the IRS system. Have your Social Security number, filing status, and the correct account and routing numbers ready.
The IRS can only update your information if your return has not yet been processed. Once the IRS has attempted the deposit and it has been rejected, you will have to wait for the paper check. If you catch the error before the IRS processes your return — usually within a few days of filing — a phone call can prevent the problem.
Frequently Asked Questions
Will TurboTax tell me if I enter the wrong account number?
TurboTax will catch obvious errors like an account number that is too short or a routing number that is not nine digits. It will not catch a transposed digit or a number that is formatted correctly but belongs to a different account. You have to verify the numbers yourself.
Can I change my account number after I file my return?
Yes, but only before the IRS processes your return. Call the IRS at 1-800-829-1040 with your Social Security number and the correct account information. If the IRS has already attempted the deposit and it was rejected, you cannot change it — you will receive a paper check instead.
How long does it take to get a paper check if my direct deposit fails?
The IRS typically mails a check within two to four weeks after the deposit is rejected. The check itself takes another one to two weeks to arrive, depending on mail speed. In total, expect four to six weeks from the time your deposit fails.
Should I use a savings account or a checking account for my refund?
Either works, but checking accounts are more common. Make sure the account is in your name and that you have the correct routing and account numbers for that specific account. Some banks use different routing numbers for different account types.
What if my bank uses a different routing number for online transfers?
Use the routing number for direct deposits, not the one for online transfers or bill pay. Your bank's website or a check will show the correct routing number. When in doubt, call your bank and ask specifically for the routing number to use for IRS direct deposits.