What Happens When You Dispute a Charge With Your Bank?

When you dispute a charge with your bank, the bank opens an investigation, decides whether the charge was legitimate, and then either reverses it for good or puts it back on your account. Two federal laws set the rules: the Fair Credit Billing Act (through Regulation Z) for credit cards, and the Electronic Fund Transfer Act (through Regulation E) for debit cards and other electronic transfers. The deadlines, the investigation clock, and how much of the money you get to use while the bank works all depend on which one applies.

Deadlines That Shape Your Protection

The first thing that happens is a clock check. If you’re outside the filing window, the bank has no legal obligation to investigate at all.

For a credit card charge, you have 60 days from the date the issuer sent the statement containing the disputed charge to submit a written notice of the billing error.¹ Your maximum liability for unauthorized credit card charges is $50, and if only the card number was stolen (not the physical card), your liability drops to $0.²

For a debit card, the deadline is stricter because your liability grows the longer you wait:

Report within 2 business days of learning the card was lost or stolen: liability capped at $50.
Report after 2 business days but within 60 days of your statement: liability can reach $500.
Report after 60 days from when the statement was sent: potentially unlimited liability for unauthorized transfers that happen after that 60-day window.³

Visa and Mastercard zero-liability policies often bring your real-world exposure down to $0 on both card types, provided you reported promptly and used reasonable care. Commercial cards and unregistered prepaid cards (such as gift cards) are excluded from those network policies.⁴⁵

How to File So the Dispute Actually Counts

Before you contact the bank, have the transaction date, the exact amount, the merchant name as it appears on your statement, and your reason for disputing. Most banks let you file through the app or website by selecting the transaction and choosing “dispute” or “report a problem.” Filing electronically is usually fastest and creates an immediate record.

For a debit card dispute under Regulation E, notice can be written or oral. If you call, the bank may require written confirmation within 10 business days. Skip that step when it’s required and the bank isn’t obligated to provisionally credit your account while it investigates.⁶

For a credit card dispute, the Fair Credit Billing Act technically requires a written notice sent to the specific billing error address printed on your statement, not the general customer service or payment address. The statute doesn’t explicitly recognize an online form as satisfying that requirement.¹ Most major issuers treat online disputes as valid, but on a large charge the safest route is to file online for speed and also mail a written dispute to the billing error address, so your federal rights are preserved either way.

You do not have to contact the merchant first. Regulation Z sets no such prerequisite for billing error claims, including claims about goods or services that weren’t delivered as agreed.⁷

What the Bank Does During the Investigation

Once your dispute is on file, the bank freezes the charge and starts looking into it. The clock and the mechanics differ by card type.

Credit Card Timeline

Your card issuer must acknowledge a written dispute within 30 days of receiving it, unless it fully resolves the issue inside that same 30-day window. It then has up to two complete billing cycles, capped at 90 days from receipt of your notice, to finish the investigation.⁷

While the investigation is open, you don’t have to pay the disputed amount or any finance charges tied to it. The creditor can’t try to collect on that portion, can’t report it as delinquent to the credit bureaus, and can’t accelerate your debt or close your account just because you disputed.⁸ The charge still shows on your statement, but it should be marked as disputed and shouldn’t accrue interest during the review.

Debit Card Timeline and Provisional Credit

Your bank has 10 business days from receiving your notice to investigate and decide whether an error occurred. If it confirms one, it must correct it within one business day. If it needs more time, it can extend to 45 calendar days, but only if it provisionally credits your account for the disputed amount within those first 10 business days.⁹

The provisional credit covers the full disputed amount and includes interest where applicable. If the bank believes the transfer was unauthorized and you didn’t report the loss within two business days, it may withhold up to $50 from that credit. You get full use of the credited funds while the review continues, and the bank must tell you the amount and date within two business days of issuing it.⁶

Some transactions get a longer window: 90 calendar days instead of 45. That applies to point-of-sale debit card purchases, international transfers, and transactions on accounts open fewer than 30 days.¹⁰

What the Bank Reviews and What the Merchant Does

The bank starts with its own records for the transaction. For a card purchase, it may ask the merchant for a copy of the sales receipt to check the amount. When there’s no direct agreement between the bank and a third party in the transfer, the review can also include ACH records, your recent account activity, whether check numbers are out of sequence, and whether the transaction location looks unusual for your patterns.¹¹

The merchant gets to respond. Once your bank reverses the charge, the merchant’s bank notifies the merchant, which can submit evidence the transaction was valid, like delivery confirmations, signed receipts, or customer service records. If the merchant successfully challenges the reversal, the disputed amount can come back to your account.

Your Credit Report While the Dispute Is Open

On a credit card dispute, the creditor cannot report the disputed amount as delinquent to any credit bureau until the investigation concludes.⁸ Your account may show a notation that a dispute is in progress; that notation on its own doesn’t damage your score.

Debit card disputes don’t directly hit your credit report, because debit isn’t an extension of credit. But if a denied dispute leaves the account overdrawn and you don’t cure the negative balance, the bank may report the account to a specialty consumer reporting agency.

If the Bank Denies the Dispute

When the bank finds no error, or finds an error different from what you described, it must send a written explanation of what it decided. For debit disputes, it must also tell you that you can request the documents it relied on, and it must provide them promptly if you ask.⁹ For credit disputes, the creditor must tell you how much you owe, including any finance charges that accrued during the review, and when payment is due.

If a provisional credit had been issued on your debit account, the bank withdraws it after a denial. It must give you at least five business days’ notice before debiting that amount and must tell you the date and amount. If you already spent the credit, that withdrawal can overdraw the account.

If the investigation finds a real billing error but in a different amount than you claimed, the creditor has to correct the actual error and credit your account for that correct amount, including any related finance charges.¹²

A denial isn’t the last stop. You can file a complaint with the Consumer Financial Protection Bureau, which forwards it to the bank. Companies generally respond within 15 days, though some ask for up to 60 days for a final response, and you have 60 days to give feedback on what they say.¹³ Small claims court is another option for smaller amounts, and for a substantial sum it may be worth asking an attorney about a civil suit.

One Boundary: Disputing a Charge You Know Was Valid

Filing a dispute on a charge you know was legitimate, sometimes called friendly fraud or first-party fraud, is not a low-risk shortcut. Knowingly filing a false claim to claw back money for goods or services you actually received can be bank fraud under federal law, with penalties of up to $1,000,000 in fines, up to 30 years in prison, or both.¹⁴ Banks watch dispute patterns and can close accounts that file unusual volumes of claims, and the merchant can pursue its own civil claim for the value of what you received.

1
Office of the Law Revision Counsel. 15 USC Chapter 41, Subchapter I, Part D – Credit Billing
2
eCFR. 12 CFR 226.12 – Special Credit Card Provisions
3
eCFR. 12 CFR 205.6 – Liability of Consumer for Unauthorized Transfers
4
Visa. Visa’s Zero Liability Policy
5
Mastercard. Mastercard Zero Liability Protection Policy
6
eCFR. 12 CFR 1005.11 – Procedures for Resolving Errors
7
Consumer Financial Protection Bureau. 12 CFR Part 1026 – Regulation Z – 1026.13 Billing Error Resolution
8
Consumer Financial Protection Bureau. 12 CFR Part 1026 – Regulation Z – 1026.13 Billing Error Resolution – Section: (d) Rules Pending Resolution
9
Consumer Financial Protection Bureau. 12 CFR 1005.11 – Procedures for Resolving Errors
10
Consumer Financial Protection Bureau. 12 CFR Part 1005 – Regulation E – 1005.11 Procedures for Resolving Errors
11
eCFR. 12 CFR Part 1005 – Electronic Fund Transfers, Regulation E
12
eCFR. 12 CFR 1026.13 – Billing Error Resolution
13
Consumer Financial Protection Bureau. Submit a Complaint
14
Office of the Law Revision Counsel. 18 USC 1344 – Bank Fraud