When an ACH payment is returned, the money never moves, the receiving bank tags the transaction with a standardized return code explaining why, and a cascade of consequences follows: your bank may charge a non-sufficient funds fee, the merchant may charge its own returned-item fee, the merchant can usually retry the payment up to two more times, and the debt itself remains fully owed. What happens next in your specific case depends almost entirely on which return code the bank assigned.
Why the Return Code Drives Everything
Every returned ACH transaction carries a reason code assigned by the receiving bank under rules published by Nacha, which operates the ACH network. The code determines whether the merchant can try again, whether you owe a fee, and whether you have a dispute on your hands.
Codes generally fall into two groups. Account-related codes describe a problem with the account itself: R01 (insufficient funds), R02 (account closed), R03 (no account or unable to locate), and R04 (invalid account number). Dispute-related codes describe something you did to block the payment: R07 (authorization revoked), R08 (stop payment), R10 (unauthorized), and R11 (entry not in accordance with terms, meaning you authorized the company but not for this amount, date, or frequency).1Nacha. Differentiating Unauthorized Return Reasons
The distinction matters because account-related codes usually let the merchant retry, while dispute-related codes shut further ACH collection attempts down.
Fees You Can Be Charged
Two fees can hit at once, and sometimes a third.
Your bank may charge a non-sufficient funds (NSF) fee when the return is coded R01. These have historically ranged from $25 to $35 per occurrence. The picture has changed at large institutions: the ten largest U.S. banks by asset size have eliminated NSF fees entirely, and many mid-size banks have done the same. Smaller banks and credit unions may still charge the traditional amount, so the answer depends on where you bank.
Separately, the merchant can charge its own returned-item fee under the terms of your service agreement or contract. These commonly run $20 to $40, and many states cap the maximum somewhere between roughly $10 and $50 depending on the jurisdiction.
If the failed payment also causes you to miss a contractual deadline, a late-payment penalty can stack on top, or you can lose a prompt-payment discount. On a small original payment, the combined charges can easily exceed the payment itself.
Can the Merchant Try Again?
For most account-related returns, yes. Nacha rules allow reinitiation up to two additional times after the original attempt, for a maximum of three tries, within a defined window after the original settlement date. You will see the retry attempts as separate debit entries in your transaction history. Merchants often time them to typical pay-cycle dates to catch a positive balance, and each failed attempt can trigger another NSF fee if your account is still short. That is how a single returned payment turns into several fees.
Reinitiation is not allowed for every code. If the return was coded R02 (account closed), R07 (authorization revoked), R08 (stop payment), or R10 (unauthorized), the merchant cannot resubmit through the ACH network. Those codes signal either a permanent account problem or an active dispute, and retrying would break Nacha rules.
You Still Owe the Money
A returned ACH payment does not cancel the debt. The transaction simply failed to move funds; the underlying obligation to the lender, merchant, or service provider stays fully enforceable. The company can pursue the balance through ordinary collection methods, including turning the account over to a collection agency or filing suit.
State law adds another layer. Some states have updated their returned-check statutes to cover electronic debits, while others have not clearly extended those rules to ACH. In states that do apply returned-check rules to electronic payments, a merchant may be entitled to the original amount plus statutory damages, which in some jurisdictions can be a multiple of the payment amount, subject to dollar caps. Because the treatment varies so much from state to state, it is worth checking the specific rule in your jurisdiction before assuming you owe only the payment and standard fees.
If the Debit Was Not Authorized
The Electronic Fund Transfer Act and Regulation E protect you when money leaves your account without permission. You have 60 days from the date the statement showing the debit was sent to notify your bank.2eCFR. 12 CFR 1005.11 – Procedures for Resolving Errors Miss that window and your ability to recover the funds can be limited.
After you report the error, your bank has 10 business days to investigate and resolve it. The bank can extend the investigation to 45 days, but only if it provisionally credits your account within those first 10 business days so you have access to the disputed funds while the review continues. New accounts (within 30 days of the first deposit) get a longer clock: 20 business days before provisional credit is required and up to 90 days to finish the investigation.3Consumer Financial Protection Bureau. Regulation E Section 1005.11 – Procedures for Resolving Errors
Your bank may ask you to sign a Written Statement of Unauthorized Debit (WSUD) with your name, account number, the amount and date of the debit, and the company that initiated it. Signing a false WSUD can carry federal penalties, so file one only for a genuinely unauthorized transaction.4Nacha. ACH Operations Bulletin 1-2023 – Update to Sample Written Statement of Unauthorized Debit
Stopping Future Debits
If you want to prevent the next debit, you have two tools, and they are not the same thing.
Revoking authorization means telling the company directly that it no longer has permission to debit your account. Tell your bank too. The Consumer Financial Protection Bureau recommends doing both by phone and in writing.5Consumer Financial Protection Bureau. How Can I Stop a Payday Lender From Electronically Taking Money Out of My Bank or Credit Union Account Revocation shuts off future debits, but it does not cancel your loan or contract. You still owe the balance.
A stop payment order tells your bank to block a specific upcoming transfer. Under federal law, you must give the bank the order at least three business days before the scheduled transfer.6eCFR. 12 CFR 1005.10 – Preauthorized Transfers You can place the order orally, but the bank may require written confirmation within 14 days; if you do not follow up in writing, the oral order expires.7Office of the Law Revision Counsel. 15 USC 1693e – Preauthorized Transfers Most banks charge a stop payment fee, typically $15 to $35.
Impact on Your Banking Record
Repeated ACH returns can affect more than your current account. Banks report account misuse, including patterns of returned payments, to consumer reporting agencies like ChexSystems and Early Warning Services. A negative record with these agencies can stay on file for up to five years and may cause another bank to deny you a checking or savings account. You are entitled under the Fair Credit Reporting Act to request a free copy of your consumer disclosure once every 12 months, which is worth doing if you know you have had returns.
With multiple returned payments on your record, your current bank may close the account or restrict features like overdraft protection and debit card access. Fixing the underlying cause — whether that is a short balance, stale account information saved with a merchant, or a recurring charge you never agreed to — is what stops the fees from compounding.