If you put the wrong account number on your tax return, one of three things happens: the IRS catches the error before the money moves, the bank rejects the deposit and sends it back, or the deposit succeeds into someone else’s valid account. The first two are recoverable with some delay. The third is the one that can cost you real money, because the IRS will not reverse a deposit that reached a legitimate account, even if that account doesn’t belong to you.
Which path you’re on depends entirely on the number you entered, not on anything you can control after filing. The IRS takes no responsibility for banking information you provide and cannot edit account details once a return is accepted.
If the Number Fails IRS Validation
Routing and account numbers have an internal structure. If you drop a digit or add one, the number fails the IRS’s internal check before any money is sent. The IRS stops the deposit, mails you a notice explaining what happened, and the funds stay with the Treasury until you tell the agency what to do next.1Internal Revenue Service. Refund Inquiries – Incorrect Routing or Account Number This is the best version of the problem. Your refund is late, but it is not lost.
If the Bank Rejects the Deposit
If the number looks valid but the receiving bank can’t match it to a real account, or the name on the return doesn’t match the account holder, the bank returns the funds to the Treasury. For years, the IRS would then automatically cut a paper check. That changed for the 2026 filing season.
Starting with 2025 returns filed in 2026, the IRS freezes most rejected direct deposits rather than reissuing them automatically. You’ll receive notice CP53E explaining that the deposit failed, with 30 days to update your banking information through your IRS online account. If you don’t have an online account or a bank account, call the IRS at 800-829-1040 and ask a representative to convert the refund to a paper check.2Taxpayer Advocate Service. Direct Deposit Changes for 2026 Could Affect How and When You Get Your Refund
Miss the 30-day window and the IRS will eventually mail a paper check about six weeks later, pushing the total delay past ten weeks from the rejected deposit. The CP53E notice is only sent once. If you update your information and the second deposit also fails, you won’t get another chance to correct it through the online system. Watch for the notice carefully, and if your mailing address has changed, update it with the IRS so the letter reaches you.
If Your Refund Went to Someone Else’s Account
This is the scenario people underestimate. If the wrong number you entered happens to match a valid account at that bank, the deposit goes through into that person’s account. The IRS cannot reverse the transaction and cannot compel the bank to return the money.1Internal Revenue Service. Refund Inquiries – Incorrect Routing or Account Number
Start with the bank. Call the financial institution the deposit was sent to, ask for the ACH department, and explain that a federal tax refund was misdirected. The bank may try to recover the funds from the account holder, but there’s no guarantee the money is still there or that the person cooperates.
If five calendar days pass with no resolution from the bank, file Form 3911 (Taxpayer Statement Regarding Refund) to open an official refund trace. The IRS will then contact the bank on your behalf. Banks have up to 90 days from the trace date to respond, and full resolution can take up to 120 days.3Internal Revenue Service. About Form 3911, Taxpayer Statement Regarding Refund
If the bank refuses to return the funds or the money has already been withdrawn, the IRS cannot force the issue. Your remaining option is civil action against the bank or the account holder. That is why the IRS warns taxpayers to verify account and routing numbers with the bank before filing and never to request a deposit into an account that isn’t in your own name.
If You Catch the Mistake Before It Processes
If you notice the error shortly after filing, call the IRS at 800-829-1040 immediately. If your return hasn’t fully posted to their system, a representative can sometimes halt the direct deposit before it goes out. The window is narrow. Once the deposit is released to the banking network, no one at the IRS can pull it back.1Internal Revenue Service. Refund Inquiries – Incorrect Routing or Account Number
The “Where’s My Refund?” tool at irs.gov and the IRS2Go app update within 24 hours of e-filing acceptance and will reflect a rejected deposit. If the tool shows your refund as sent and nothing arrives after five business days, treat that as your cue to begin the recovery steps above.
If the Wrong Number Was on a Payment, Not a Refund
A wrong account number on a tax payment is more urgent than a delayed refund, because your tax debt stays unpaid while penalties and interest run. If you authorized an electronic funds withdrawal and the bank rejects it, the IRS mails Letter 4870 explaining the failure and listing other ways to pay.4Internal Revenue Service. Pay Taxes by Electronic Funds Withdrawal
A failed electronic payment does not extend the April 15 deadline. If the due date passes with your tax unpaid, penalties and interest start accruing immediately. You cannot edit the account information on a payment once the return has been accepted. The only fix is to cancel the original payment and pay another way.
The Penalties That Can Pile On
A bounced tax payment can trigger more than one penalty at the same time. The failure-to-pay penalty runs at 0.5% of your unpaid tax for each month or partial month the balance is outstanding, up to a maximum of 25%.5Internal Revenue Service. Failure to Pay Penalty On top of that, 26 U.S.C. § 6657 adds a separate dishonored-payment penalty:
- For payments under $1,250, the penalty is $25 or the payment amount, whichever is less.
- For payments of $1,250 or more, the penalty is 2% of the payment amount.
The dishonored-payment penalty does not apply if you can show you provided the account information in good faith and had reasonable cause to believe the payment would clear.6Office of the Law Revision Counsel. 26 USC 6657 – Bad Checks
Interest runs on any unpaid balance and compounds daily. For the first quarter of 2026, the IRS charges 7% per year on individual underpayments, dropping to 6% for the second quarter beginning April 1, 2026.7Internal Revenue Service. Interest Rates Remain the Same for the First Quarter of 2026 Rates are adjusted quarterly.
How to Pay Fast
Don’t wait for Letter 4870. Every day of delay adds to the penalty and interest totals. Your options:
- IRS Direct Pay at irs.gov/directpay schedules a new electronic payment from a correct bank account, with no fee and immediate confirmation.
- Credit or debit card payments go through an IRS-authorized third-party processor, which charges a processing fee (typically around 2% for credit cards).
- Check or money order can be mailed with your name, address, phone number, Social Security number, the tax year, and the form number (such as “1040”) written on the payment.8Internal Revenue Service. Pay by Check or Money Order
Direct Pay is the fastest and leaves the clearest paper trail. A mailed check doesn’t stop penalties until the IRS actually receives it.
Asking the IRS to Waive the Penalties
If a failed payment triggered penalties, you may qualify for relief. First-time penalty abatement is the simpler path. You’re eligible if you’ve filed the same type of return for the past three tax years, haven’t been assessed any penalties during that period (or had them removed for an acceptable reason), and have filed all currently required returns.9Internal Revenue Service. Administrative Penalty Relief First-time abatement covers the failure-to-pay penalty but not the dishonored-payment penalty under § 6657.
Reasonable-cause relief covers a broader range of situations. If circumstances beyond your control caused the payment failure, send a written explanation with supporting documentation. Examples include reliance on incorrect information from a bank or tax preparer, or an emergency that kept you from catching the error. The IRS looks at whether you exercised ordinary care and still couldn’t meet the deadline. You can request reasonable-cause relief by calling the IRS, writing a letter, or filing Form 843.
For the dishonored-payment penalty specifically, the statute provides its own defense: no penalty if you tendered payment in good faith with reasonable cause to believe the account had sufficient funds and correct information.6Office of the Law Revision Counsel. 26 USC 6657 – Bad Checks A transposed digit on an otherwise valid account is a strong fact pattern for that defense.