Disputing a credit card charge under the Fair Credit Billing Act, explained

Every other dispute covered in this Library is about a credit report — a wrong balance, a stranger's account, a debt that's aged out. This one is about a credit card bill, which runs under a completely different federal law with its own deadline, its own defined list of what counts as an error, and its own consequence for an issuer that ignores it. Mixing the two up — and sending a credit-report-style dispute instead of the written notice this law actually requires — is a common, avoidable way to lose a real right.

A "billing error" is a specific, defined term — not just "I disagree with this charge"

The Fair Credit Billing Act, 15 U.S.C. §§ 1666-1666j — a set of amendments to the Truth in Lending Act, implemented today through the Consumer Financial Protection Bureau's Regulation Z, 12 C.F.R. § 1026.13 — applies to open-end credit, in practice almost always a credit card, and defines a "billing error" as one of several specific things: a charge you (or someone you authorized) didn't make; a charge for goods or services that weren't delivered as agreed; a computational or accounting mistake on the statement; a failure to credit a payment or return you already made; a statement not mailed to your current address after you gave the issuer reasonable, timely notice of a change; or a charge you're asking the issuer to document or explain. It doesn't cover a charge you agree is accurate but simply regret, or a merchant dispute over quality that isn't about non-delivery — those are separate consumer questions this specific law doesn't reach.

The 60-day clock runs from the bill, not from when you noticed

To use this right, you have to send the card issuer a written notice — not just a phone call — identifying your name and account number, the dollar amount you're disputing, and why you believe it's an error, within 60 days after the issuer mailed or transmitted the first billing statement that contained the error. That deadline runs from the statement date, not from whenever you actually caught the charge, which is exactly the kind of gap that costs people this right if a bill sits unopened or unreviewed for more than two months.

What the issuer has to do once it gets your letter

The issuer must acknowledge your dispute in writing within 30 days of receiving it, unless it resolves the whole thing that quickly, and must complete its investigation and give you a final answer within two complete billing cycles — a period the statute caps at 90 days from receiving your notice, whichever comes first. While that investigation is pending, the issuer can't try to collect the disputed amount, can't close or restrict your account over it, and can't report it as delinquent to a credit bureau — though it can continue listing the disputed amount on your statement and note that it's under dispute. An issuer that skips these procedural steps forfeits its own right to collect the first $50 of the disputed amount and any related finance charge under 15 U.S.C. § 1666(e) — a specific statutory penalty that applies regardless of whether the underlying charge turns out to have been accurate after all.

If the issuer decides you actually owe it

Should the investigation conclude no billing error occurred, the issuer has to send you a written explanation and give you a reasonable time to pay the amount — including any finance charges that accrued during the dispute — before reporting it as delinquent to a bureau or resuming ordinary collection. It also has to tell you, on request, who it reported the dispute's outcome to, so you can check your credit report against what actually happened.

Why a debit card doesn't get the same protection

A debit card runs under an entirely different statute — the Electronic Fund Transfer Act and its implementing Regulation E — with a materially weaker consumer position. Instead of suspending your obligation to pay while a dispute is investigated, the money is simply already gone from your account, and your protection is a tiered liability cap based on how fast you report it: up to $50 if you notify your bank within two business days of learning about unauthorized use, up to $500 if you notify within 60 days of the statement showing it, and potentially unlimited liability for anything beyond that 60-day window. That's a real, meaningful gap from the FCBA's billing-error process, where a properly disputed charge doesn't have to be paid at all while it's under investigation — a distinction worth knowing before deciding which card to hand over for an online purchase or an unfamiliar merchant.

A "chargeback" isn't the same right as an FCBA dispute

A chargeback is a process created and run by the card networks — Visa, Mastercard, American Express, Discover — under their own private contractual rules with issuing and merchant banks, not a right created by federal statute. In practice the two overlap heavily for a fraudulent or non-delivered charge, and a network's own rules can be more generous than the federal floor — Visa, for one, gives cardholders up to 120 days to dispute a charge under its own network rules, well beyond the FCBA's 60-day statutory minimum. But a network rule is exactly that: a rule the network and its member banks agreed to enforce against each other, not a law you can point to the way you can point to 15 U.S.C. § 1666. The FCBA notice described above is the one dispute right that exists regardless of which network your card runs on.

The unauthorized-use cap, separately: under a different provision of the same Truth in Lending Act, 15 U.S.C. § 1643, your liability for a lost or stolen credit card used without your permission is capped at $50 by federal law — full stop, regardless of how large the fraudulent charges turn out to be, as long as the issuer gave you the disclosures the statute requires. The "zero liability" guarantee Visa and Mastercard advertise goes further than that $50 floor, but it's each network's own voluntary policy, not a separate legal requirement — the same distinction our credit-freeze-vs-credit-lock explainer draws between a statutory right and a company's own terms of service.