Credit card chargebacks work like this: when you tell your card issuer in writing that a charge on your statement is wrong, unauthorized, or tied to goods or services the merchant failed to deliver, federal law requires the bank to investigate, pause your obligation to pay the disputed amount, and protect your credit while it sorts things out. The Fair Credit Billing Act and Regulation Z set the deadlines, the bank’s duties, and your protections at every step. Knowing the rules before you need them is the difference between a clean reversal and weeks of back-and-forth.
What You Can Dispute
Federal law gives you three distinct paths, and which one applies shapes what you have to do.
The first is a billing error under 15 U.S.C. § 1666. This covers charges you didn’t authorize, charges for the wrong amount, goods or services not delivered as agreed, missing credits for returns or refunds the merchant promised, math errors on the statement, and charges you simply don’t recognize and want documented.1Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors A written notice about any of these triggers the full billing-error procedure.
The second is unauthorized use under 15 U.S.C. § 1643. If someone else used your card without permission, your maximum liability is $50, and even that cap only applies if the issuer gave you notice of potential liability, a way to report loss or theft, and a method for identifying authorized users. Fail any of those and you owe nothing. The burden of proof sits with the issuer, which must show either that you authorized the charge or that every condition for the $50 liability was satisfied.2Office of the Law Revision Counsel. 15 USC 1643 – Liability of Holder of Credit Card In practice, Visa and Mastercard both maintain zero-liability policies that go beyond the statutory floor, so most reported fraud costs the cardholder nothing.3Visa. Zero Liability Policy
The third is the claims and defenses rule at 15 U.S.C. § 1666i. This is the path for a transaction that happened as you intended, but where the merchant delivered something defective, substandard, or not as described. You can raise against your card issuer the same legal claims you could raise against the merchant directly. The prerequisites: you must have first tried in good faith to resolve the problem with the merchant, the transaction must exceed $50, and it must have occurred in your home state or within 100 miles of your billing address. Those geographic and dollar limits drop away when the merchant is the issuer itself, is controlled by the issuer, or reached you through a mail or online solicitation the issuer participated in, which covers most e-commerce.4Office of the Law Revision Counsel. 15 USC 1666i – Assertion by Cardholder Against Card Issuer of Claims and Defenses One important limit on this path: you can only recover up to the amount of credit still outstanding on the transaction when you notify the issuer. If you already paid the charge off, there may be nothing left to claw back.
The 60-Day Deadline
You have 60 days from the date the issuer sent the statement containing the error to get your written dispute notice to the bank. The clock is strict. Miss it and you forfeit your federal protections for that charge, even when the error is plain on its face.1Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors
Your notice must go to the address the issuer designates for billing inquiries, which is almost always different from the payment address. Writing your dispute on a payment stub doesn’t satisfy the notice requirement if the issuer has said so in its disclosures.
Card networks sometimes allow longer windows, up to 120 days for certain dispute types, but those are network policies rather than federal guarantees. Treat 60 days as the real deadline.
How to File
Most issuers let you open a dispute through their website or app under a label like “Dispute a Transaction.” You pick the charge, describe the problem, and upload documents. A phone call to the billing department can also start things; ask for a case number.
If you go in writing, send the letter by certified mail with a return receipt. That gives you proof the issuer received your notice and when, which matters if the 60-day deadline is ever in question.5Federal Trade Commission. Using Credit Cards and Disputing Charges Include your name, account number, the specific charge, the dollar amount, and a clear explanation of why it’s wrong. Attach copies of receipts, confirmation emails, photos of damaged goods, and any messages with the merchant. Keep the originals.
Do you need to contact the merchant first? For standard billing errors under § 1666, no.6Consumer Financial Protection Bureau. 1026.13 Billing Error Resolution A quick email often fixes things faster than a chargeback, but it isn’t required. The exception is the claims and defenses path under § 1666i, which does require a good-faith attempt with the merchant before you bring the dispute to your issuer.4Office of the Law Revision Counsel. 15 USC 1666i – Assertion by Cardholder Against Card Issuer of Claims and Defenses
What the Bank Must Do
Once the issuer receives your written notice, Regulation Z at 12 C.F.R. § 1026.13 governs the timeline. The bank must send a written acknowledgment within 30 days, unless it fully resolves the dispute in that same window. The investigation must conclude within two complete billing cycles, and never longer than 90 days.6Consumer Financial Protection Bureau. 1026.13 Billing Error Resolution
Behind the scenes, the issuer contacts the merchant’s bank, which asks the merchant for evidence that the charge was legitimate. The merchant typically has 20 to 45 days to respond depending on the network’s rules.7Mastercard. How Can Merchants Dispute Credit Card Chargebacks The issuer weighs both sides and decides.
Most issuers apply a provisional credit while the investigation is open, so the disputed amount comes off your balance almost immediately. If the bank sides with you, that credit becomes permanent. If it sides with the merchant, the credit is reversed and the charge returns.
Your Rights While the Dispute Is Open
Your credit is protected during the investigation. The issuer cannot report the disputed amount as delinquent to any credit bureau or threaten your credit standing because you haven’t paid the disputed charge. This comes directly from 15 U.S.C. § 1666a.8Office of the Law Revision Counsel. 15 USC 1666a – Regulation of Credit Reports If the investigation ends against you and you still disagree, the issuer can report the amount as owed, but it must note that you dispute it and tell you every party it reported the delinquency to.
On payments, you can withhold the disputed amount and any finance charges tied to it while the dispute is pending. You still owe the rest of your bill. Skipping the whole minimum payment because part of it is in dispute is a common mistake that triggers late fees on the undisputed balance.5Federal Trade Commission. Using Credit Cards and Disputing Charges If the issuer later determines you owe some or all of the disputed amount, it must tell you in writing how much and by when, and if you had a grace period on purchases, you get that same grace period on the resolved amount before finance charges kick in.
If the Bank Sides With the Merchant
When the issuer decides the charge was valid, it has to explain why in writing and give you the amount owed and the due date.9Consumer Financial Protection Bureau. How Do I Dispute a Charge on My Credit Card Bill The provisional credit comes off and the charge returns to your balance, potentially with accumulated finance charges.
A denial isn’t the end. If you believe the issuer mishandled the dispute or skipped any of the procedural requirements, you can file a complaint with the Consumer Financial Protection Bureau. The CFPB forwards the complaint to the company, which generally responds within 15 days, with some cases taking up to 60.10Consumer Financial Protection Bureau. Submit a Complaint It won’t automatically reverse the charge, but it creates a formal record and can prompt a second look.
For larger amounts, small claims court is open to you. An issuer that failed to follow the investigation procedures required by Regulation Z forfeits the right to collect up to $50 of the disputed amount plus related finance charges, regardless of whether the underlying charge was valid.1Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors The penalty is modest, but it gives issuers a direct reason to follow the rules.
Debit Cards Are Not the Same
Everything above applies to credit cards. Debit cards fall under the Electronic Fund Transfer Act, and the protections are thinner. The money leaves your account immediately and getting it back takes longer. Your liability for unauthorized debit transactions depends on how quickly you report: report within two business days and your exposure caps at $50, but wait more than 60 days after your statement is sent and you can be on the hook for the full amount. There is no routine provisional credit of the kind credit card issuers provide. For a large or risky purchase, the dispute rights alone make a credit card the safer choice.