When you dispute a charge, your bank provisionally sides with you, opens an investigation, contacts the merchant’s bank, and within about 45 to 90 days either makes the reversal permanent or reapplies the charge to your account. What happens when you dispute a charge depends heavily on whether the card is credit or debit, because two different federal laws set the deadlines, the liability, and how fast money moves back to you.
What the Bank Does After You File
Once your bank receives the dispute, response clocks start running. For credit card disputes under the Fair Credit Billing Act, the issuer must acknowledge your written complaint within 30 days unless it resolves the matter within that same period. From there, it has two full billing cycles, and no more than 90 days, to finish investigating and either correct your account or explain why it believes the charge was valid.1Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors
Debit card disputes move on a faster track under Regulation E. The bank must complete its investigation within 10 business days. If it needs more time, it can extend to 45 days, but only if it provisionally credits your account within those first 10 business days.2eCFR. 12 CFR 1005.11 – Procedures for Resolving Errors Certain transactions get a longer window: point-of-sale debit transactions, transfers initiated outside the United States, and transfers within the first 30 days of opening an account can extend the investigation to 90 days.
Behind the scenes, your bank notifies the merchant’s payment processor that the funds are being contested. What follows is a structured back-and-forth between your bank (the issuer) and the merchant’s bank (the acquirer), governed by the card network’s rules.
Provisional Credit and Withholding Payment
You usually get temporary access to the disputed money while the review runs, but the mechanism differs by card type.
For debit card disputes, if the bank extends its investigation past the initial period, it must provisionally credit your account within 10 business days for the full disputed amount plus any interest that accrued because of the error.3eCFR. 12 CFR 1005.11 – Procedures for Resolving Errors For unauthorized transfers, the bank may hold back up to $50 from that provisional credit if it has a reasonable basis to believe the transfer was unauthorized.
Credit card disputes work differently. During the investigation, you have the legal right to withhold payment on the disputed amount and any related finance charges. You still have to pay the undisputed portion of your bill on time. The issuer cannot try to collect the disputed amount during that period, and your withholding cannot trigger finance charges on any undisputed balance you carry.4Consumer Financial Protection Bureau. 12 CFR 1026.13 – Billing Error Resolution
Treat provisional credits as temporary. If the bank later rules the charge valid, it pulls the money back and reapplies the charge.
The Merchant’s Response
The merchant gets a window to fight the chargeback by submitting evidence that the transaction was legitimate. Under Mastercard’s rules, that window is 45 calendar days from the chargeback settlement date.5Mastercard. Chargeback Guide Merchant Edition Visa uses a 30-day response window for pre-arbitration. Other networks run their own timelines, generally between 20 and 45 days.
The rebuttal might include a signed delivery confirmation, a copy of the refund policy you agreed to, server logs showing you used a digital service, or proof that the item matched its description. Your bank weighs that against what you submitted. If the merchant doesn’t respond within the deadline, the bank almost always rules in your favor by default. Plenty of disputes end here, because some merchants miss the window and others decide the amount isn’t worth fighting.
If the merchant does respond and the evidence is contested, the case can escalate to pre-arbitration and eventually arbitration through the card network. Arbitration is rare. It involves filing fees for both sides and a binding decision by the network, and it exists as a final backstop when neither party backs down.
Your Credit Score While the Dispute Is Open
Federal law protects your score during the investigation. Your card issuer cannot report the disputed amount as delinquent to any credit bureau, and it cannot threaten to. The issuer may report that the amount or account is “in dispute,” but that notation is not the same as a delinquency and does not damage your score.4Consumer Financial Protection Bureau. 12 CFR 1026.13 – Billing Error Resolution
That protection covers only the disputed portion of your balance. Stop paying undisputed charges on the same account and the issuer can report that delinquency. Keep current on everything else while the dispute plays out.
How the Dispute Ends
The investigation closes with the bank either siding with you or siding with the merchant.
If you win, the provisional credit becomes permanent on a debit card, or the disputed charge is permanently removed from your credit card statement. The case closes and the merchant cannot reprocess the same transaction.
If the bank rules the merchant’s evidence stronger, it reverses the provisional credit on a debit card or reapplies the charge to your credit card. The bank must give you a written explanation of why it denied the dispute and describe the evidence it relied on. For credit card disputes, if you had a grace period when you first filed the complaint and the bank rules against you, you get a new grace period of the same length to pay the reinstated amount without incurring additional finance charges.1Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors
For debit card disputes, the bank must notify you of the reversal at least three business days before withdrawing the provisional credit, giving you time to adjust your balance and avoid overdraft fees.
If the Bank Rules Against You
Losing the initial dispute is not necessarily the end. You can typically ask your bank to reopen the case with new evidence the investigators haven’t seen: a tracking number that finally updated, a screenshot from the merchant admitting fault, or documentation that arrived after the original deadline.
For credit card disputes involving defective goods, undelivered services, or other merchant failures, 15 U.S.C. § 1666i gives you an additional tool. You can assert the same claims against your card issuer that you would have against the merchant, as long as the original transaction exceeded $50 and took place in your home state or within 100 miles of your billing address. Those geographic and dollar limits do not apply if the merchant is affiliated with the card issuer or if the transaction originated from a mail or online solicitation the card issuer participated in.6Office of the Law Revision Counsel. 15 USC 1666i – Assertion by Cardholder Against Card Issuer of Claims and Defenses The statute also requires a good-faith attempt to resolve the problem with the merchant first.
A merchant who wins a chargeback sometimes turns the underlying debt over to a collection agency, especially when the dispute involved a legitimate purchase you simply didn’t want to pay for. If that happens, you have the right to dispute the debt with the collector in writing within 30 days of their initial notice. The collector must then obtain proof of the debt from the merchant and cannot pursue collection while that verification is pending.
Small claims court is another option when the bank process fails. Filing fees vary widely by jurisdiction, generally from around $10 to $300 depending on the amount claimed and where you file. You do not need a lawyer, and the dollar limits in most jurisdictions cover a typical disputed transaction. This route makes the most sense when you have strong evidence the bank did not weigh properly, or when the dispute turns on a factual question a judge can resolve quickly.
What Changes If You Missed the 60-Day Window
Both the FCBA and Regulation E give you 60 days from the statement date to notify your bank. Miss it on a credit card dispute and you lose the procedural protections of the FCBA. The bank is no longer legally required to investigate, provisionally credit your account, or refrain from reporting the amount as delinquent. For unauthorized credit card charges specifically, you may still have recourse under the separate $50 liability cap in 15 U.S.C. § 1643, which has more flexible notification requirements.7Office of the Law Revision Counsel. 15 USC 1643 – Liability of Holder of Credit Card
Missing the deadline on a debit card is worse. Under Regulation E, if you do not report unauthorized transactions within 60 days of the statement, you are liable for every unauthorized transfer that occurs after that 60-day period and before you finally notify the bank. There is no cap on that amount. Your entire account balance could be at risk.8eCFR. 12 CFR 1005.6 – Liability of Consumer for Unauthorized Transfers If extenuating circumstances like a long hospitalization prevented you from reporting on time, the bank must extend the deadline to a reasonable period, but that exception is narrow and you would need to demonstrate why you could not have reported sooner.