What Does a Dispute Mean in Banking: Liability Caps and Deadlines

In banking, a dispute is a formal challenge you file with your bank or card issuer to contest a charge on your account. Two federal laws run the process. The Fair Credit Billing Act governs credit card billing errors. Regulation E governs debit cards and other electronic fund transfers. Both let you contest unauthorized charges, incorrect amounts, duplicate transactions, and charges for goods you never received. The deadlines, liability caps, and filing rules differ depending on which type of account the charge hit.

Knowing which law applies to your charge is the first step, because the clock, the dollar exposure, and even the method of notice all change with it.

What You Can Dispute

Federal law lists the specific types of charges that qualify. For credit cards, the Fair Credit Billing Act recognizes these billing errors:

Unauthorized charges, meaning someone used your card without permission.
Wrong amounts or dates, where the merchant billed more than the agreed price or recorded the transaction incorrectly.
Undelivered or unaccepted goods, where you were charged for something that never arrived or that you refused.
Math or accounting mistakes made by the card issuer on your statement.

These categories come from the statute itself and apply to any open-end credit account, including store cards.¹

For debit cards and bank accounts, Regulation E covers a similar set: unauthorized electronic fund transfers, incorrect transfers in or out of your account, duplicate charges, and transfers missing from your periodic statement.² A recurring subscription that keeps billing after you canceled also qualifies, as does any transfer you never authorized.

One point worth knowing early: for a credit card billing error like undelivered goods, you are not required to contact the merchant first. You can go straight to your card issuer.³

Deadlines and Liability Caps

The clock starts when your statement is sent. Missing the deadline can cost you every dollar in dispute, and on a debit card it can leave you liable for future unauthorized charges as well.

Credit Card Deadlines

You have 60 days after your card issuer sends your statement to submit a written billing error notice. The notice has to go to the address your issuer designated for billing inquiries, not the payment address, and must include your name, account number, the amount you believe is wrong, and the reason you think it is an error.¹ Miss that window and the issuer has no legal obligation to investigate.

For unauthorized credit card charges, federal law caps your personal liability at $50, regardless of how much the thief ran up. Once you report the card lost or stolen, you owe nothing for charges after the report.⁴ Most major card networks offer zero-liability policies on top of that, but $50 is the federal floor.

Debit Card Deadlines

Debit card liability is more aggressive, and it depends on how fast you act. Federal law creates three tiers:

Reported within 2 business days of learning your card was lost or stolen: liability capped at $50.
After 2 business days but within 60 days of the statement being sent: liability rises to $500.
After 60 days from the statement date: unlimited liability for unauthorized transfers that happen after the 60-day mark.

The unlimited tier applies specifically to transfers the bank can show it could have prevented had you reported sooner.⁵ Because debit charges pull directly from your checking account, delay can drain money you need for rent and bills. Review statements promptly.

How to File

Before you contact your bank, gather the transaction date, merchant name, exact dollar amount, and any supporting evidence: receipts, shipping confirmations, screenshots of cancellation requests, email exchanges with the merchant.

Credit Card Disputes

Federal law requires a written notice for credit card billing errors. It must reach the billing-inquiries address within 60 days of the statement date.¹ You can find that address on your statement or your issuer’s website. A note scribbled on the payment stub does not count; the statute specifically excludes that. Most issuers now accept disputes through an online portal or mobile app, which satisfies the written notice requirement, but confirm with your issuer before relying only on a digital submission.

Debit Card and Bank Account Disputes

Regulation E is more flexible. You can report an error either orally or in writing.² Calling the customer service number on the back of the card is enough to start the process. The bank can require you to follow up with a written confirmation within 10 business days of your call. If you do not send that written follow-up when asked, the bank can stop the investigation and reverse any provisional credit already applied.

Whichever route you use, ask for a reference or claim number. That number ties all future communication to your dispute and sets the official start date for the investigation timeline.

What the Bank Must Do Next

Once you file, the bank has to run a regulated investigation with firm deadlines.

Debit Card Investigations

The bank must resolve the 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 and gives you full use of the funds during the investigation.⁶ The deadline stretches to 90 days when the dispute involves a point-of-sale debit transaction, a transfer from a new account (opened within the past 30 days), or a foreign-initiated transfer.²

After the investigation ends, the bank must report its findings to you within three business days. If an error occurred, it must correct the error within one business day of that determination. If the bank concludes no error occurred, it can reverse the provisional credit, but only after notifying you and explaining the basis for the decision.⁶

Credit Card Investigations

The issuer must acknowledge your written notice within 30 days of receiving it, unless it resolves the dispute entirely within that 30-day window.³ It then has two full billing cycles, and never more than 90 days from when it received your notice, to complete the investigation and either correct the error or explain why it believes the charge was accurate.¹

Your Protections While the Dispute Is Open

Federal law shields you from financial harm during the investigation. For credit cards, two protections matter most:

You can withhold payment. You do not have to pay the disputed amount or finance charges related to it while the investigation is open. If you use autopay, the issuer must stop deducting the disputed portion as long as you give notice at least three business days before the next scheduled payment.
No negative credit reporting. The issuer cannot report the disputed amount as delinquent or make any adverse report about your credit standing during the investigation.

Both protections sit in Regulation Z’s billing error resolution rules.³

For debit card disputes, the provisional credit does similar work: it puts the money back in your account so you can cover expenses while the bank investigates. If you have autopay set up on the disputed amount, contact the bank separately to stop those payments until the dispute is resolved.

If Your Dispute Is Denied

A denial is not the end of the road.

Request the Evidence

If a credit card issuer determines no billing error occurred, it must explain why and, on your request, provide copies of the documents it relied on.¹ Reviewing that evidence can reveal weak spots in the bank’s reasoning. For debit card disputes, the bank must give you its findings in writing, and you can ask for additional detail on how it reached its decision.

File a Complaint with the CFPB

If the bank mishandled the dispute or missed its legal obligations, the Consumer Financial Protection Bureau accepts complaints about credit cards, checking and savings accounts, and other financial products. File online or call (855) 411-2372. The CFPB forwards your complaint to the bank, which generally responds within 15 days.⁷ A complaint does not guarantee a different outcome, but it creates a formal record and puts regulatory pressure on the institution. If your bank is FDIC-supervised, you can also file directly with the FDIC’s Consumer Response Unit.⁸

Small Claims Court

If the dispute still is not resolved and involves a concrete dollar amount, small claims court is an option. You generally do not need a lawyer, and the process is designed to be navigable by individuals representing themselves. Before filing, send the bank a final written demand that explains the amount owed and the legal basis. That letter sometimes prompts resolution without litigation.

Business Accounts Are Different

The protections above apply to consumer accounts. If you hold a business checking or debit account, the Electronic Fund Transfer Act and Regulation E generally do not cover you. Business accounts fall under the Uniform Commercial Code, which each state has adopted in some form. The UCC provides a framework for resolving payment disputes, but it does not include the provisional credit requirements, liability caps, or strict investigation timelines that protect consumers. For a business account, your rights depend largely on your deposit agreement with the bank and your state’s version of the UCC. Review that agreement carefully, and report unauthorized transactions as fast as possible, because commercial banking contracts often set shorter and less forgiving reporting deadlines.

1
Office of the Law Revision Counsel. 15 USC 1666 – Correction of Billing Errors
2
eCFR. 12 CFR Part 1005 – Electronic Fund Transfers (Regulation E)
3
Consumer Financial Protection Bureau. 12 CFR 1026.13 – Billing Error Resolution
4
Office of the Law Revision Counsel. 15 USC 1643 – Liability of Holder of Credit Card
5
Consumer Financial Protection Bureau. 12 CFR 1005.6 – Liability of Consumer for Unauthorized Transfers
6
Consumer Financial Protection Bureau. 12 CFR 1005.11 – Procedures for Resolving Errors
7
Consumer Financial Protection Bureau. Submit a Complaint
8
FDIC.gov. Consumer Complaint Process