Once the IRS accepts your electronically filed return, you generally cannot change the bank account tied to it after filing your taxes. Direct deposit instructions lock at the moment of acceptance, and no online portal, phone request, or amended return will swap in a new routing or account number. The one real exception is a return the IRS has rejected but not yet accepted, which you can correct and resubmit. Everything else comes down to what happens when the wrong account receives, refuses, or fails to process the deposit.
The Narrow Window Before the Return Posts
There is a brief opportunity between acceptance and full posting. If you catch the mistake quickly, call the IRS at 800-829-1040 and ask the agency to stop the direct deposit before it processes.1Internal Revenue Service. Tell IRS to Direct Deposit Your Refund to One, Two, or Three Accounts This only works if the return has not already posted, and electronic returns typically post within a day or two. The window closes fast.
Beyond that, no mechanism exists to update banking details on an accepted return. Phone agents cannot modify financial routing information for security reasons. An amended return will not fix it either. Form 1040-X is built to correct income, credits, filing status, and similar entries, not to change where a refund is sent.2Internal Revenue Service. About Form 1040-X, Amended U.S. Individual Income Tax Return
If the IRS Rejected Your Return
A rejection is actually good news when your bank details were wrong. The IRS rejects returns for things like a Social Security number mismatch or a duplicate filing, and a rejected return was never accepted into the system. Go back into your tax software, open the refund section, correct the routing and account numbers, and resubmit. The IRS treats the resubmission as a brand-new filing, so the processing clock starts over.
Before you resend, verify the corrected numbers against a bank statement or your bank’s direct deposit information page. A second rejection wastes time and pushes your refund further out. Once the IRS accepts the corrected return, the banking information locks in and the standard no-changes rule applies from that point forward.
If the Account Is Closed or the Number Is Invalid
When the IRS sends a refund to an account that no longer exists or has an invalid number, the receiving bank does not keep the money. Treasury Department payment rules require financial institutions to return deposits they cannot credit. That covers closed accounts, account numbers that match nothing at the bank, and any other reason the institution cannot process the payment.3Bureau of the Fiscal Service. Green Book – Chapter 4: Returns
Most banks flag the problem and return the funds within a few business days. Once the Bureau of the Fiscal Service receives the returned payment, it notifies the IRS, and the IRS reissues your refund as a paper check mailed to the last address on file.4Bureau of the Fiscal Service. Tax Refund Frequently Asked Questions The process typically adds around four weeks to your refund timeline.
If the Deposit Landed in Someone Else’s Account
This is the hardest case. If a typo happens to match a real account belonging to someone else and the bank accepts the deposit, recovery is not guaranteed. The IRS is direct about it: when the bank accepts the deposit, you must work with that financial institution to recover the money.5Internal Revenue Service. Refund Inquiries 18
If two weeks pass and the bank has not resolved it, you can file Form 3911, Taxpayer Statement Regarding Refund, to open a formal refund trace. Filing the form authorizes the IRS to contact the bank on your behalf. Banks have up to 90 days from the trace date to respond, and the full resolution process can stretch to about 120 days.5Internal Revenue Service. Refund Inquiries 18
The uncomfortable part is what happens if the funds are gone or the bank refuses to return them. The IRS cannot force the issue. Recovery then becomes a civil matter between you, the bank, and potentially the person who received your money. This is why verifying account numbers before filing matters far more than most people realize.
Wrong Bank Info on a Payment You Owe
The situation flips when you owed the IRS and scheduled an electronic funds withdrawal from the wrong account. If the payment fails because the bank cannot process it, the IRS treats it like a bounced check.
The dishonored payment penalty runs on a sliding scale. For payments under $1,250, the penalty is the payment amount or $25, whichever is less. For payments of $1,250 or more, the penalty is 2% of the payment amount.6Internal Revenue Service. Dishonored Check or Other Form of Payment Penalty You are also responsible for any failure-to-pay penalties and interest that accrue while the tax goes unpaid.
You can head off the problem by canceling the withdrawal in time. Cancellation requests must reach the IRS by 11:59 p.m. ET at least two business days before the scheduled payment date. Call IRS e-file Payment Services at 888-353-4537 to cancel, but wait 7 to 10 days after acceptance before calling so the payment shows in their system.7Internal Revenue Service. Pay Taxes by Electronic Funds Withdrawal If you cancel successfully, you still owe the tax. Make a replacement payment through IRS Direct Pay, a debit or credit card, or another accepted method so penalties and interest stop building.
Getting the Direct Deposit Details Right
A routing transit number is always nine digits and identifies the financial institution. On a paper check, it is the first set of numbers along the bottom-left edge. The account number follows it and varies in length by bank. You also need to select whether the account is checking or savings, because the wrong account type can cause a failed deposit even with correct numbers.
Many banks display dedicated direct deposit details in their online portals or mobile apps, which is more reliable than reading numbers off a check. Some checks include internal processing codes between the routing and account numbers that look like part of the account number but are not. Copying the figures from your bank’s digital portal eliminates the confusion.
If you want your refund split across multiple accounts, attach Form 8888 to your return. That lets you direct portions of the refund to up to three accounts at different institutions.8Internal Revenue Service. Frequently Asked Questions About Splitting Federal Income Tax Refunds Each deposit must be at least $1.9Internal Revenue Service. Form 8888 (Rev. December 2025) One limit worth knowing: no more than three electronic refunds can go into the same bank account or prepaid debit card in a single tax year. Beyond that, the IRS sends a paper check.1Internal Revenue Service. Tell IRS to Direct Deposit Your Refund to One, Two, or Three Accounts