Short answer: Contact your card issuer as soon as you see a charge you don't recognize, especially if it may be fraud. But if you want the federal billing-error protections, send a written dispute so it reaches the issuer within 60 days after the first statement showing the charge was sent to you.

For U.S. consumer credit cards, the issuer generally must acknowledge a timely written dispute within 30 days unless it resolves the issue sooner. It must complete the investigation within two complete billing cycles and no later than 90 days. Debit cards, prepaid cards, business accounts, and cards issued outside the United States follow different rules.

What controls the dispute?

A single charge can touch several processes at once. They don't all do the same thing:

• Federal billing-error rules. The Fair Credit Billing Act, implemented by Regulation Z, gives consumers a written dispute process for certain credit card errors. This is where the 60-day notice rule and the 30-day acknowledgment rule come from.
• Card-network chargebacks. Visa, Mastercard, American Express, and other networks set dispute categories, evidence rules, and response periods. The issuer handles this process for you, and the timing can depend on the transaction and reason code.
• Merchant refunds. If the merchant agrees, a refund is often the fastest fix.
• Issuer or network zero-liability policies. These can go beyond federal law, but they come with conditions and aren't the same as statutory billing-error rights.

A chargeback doesn't automatically cancel a charge. The issuer reviews the claim, may request records from the merchant, and then decides whether to reverse the transaction.

Which charges are worth disputing?

The strongest disputes connect the charge to a specific problem: an unauthorized transaction, wrong amount, missing credit, or failure to deliver what was promised.

The Federal Trade Commission's guidance on credit card billing errors explains the federal notice and investigation process.

Merchant disputes have extra conditions

A separate federal claim-and-defense rule may help when a merchant didn't deliver what it promised or otherwise breached the agreement. In general, the purchase must be over $50, made in your home state or within 100 miles of your billing address, and you must have made a good-faith attempt to resolve the problem with the merchant. Exceptions can apply, and card-network rules may provide another path.

A merchant's "all sales final" policy doesn't erase a valid unauthorized charge or billing-error claim. It also doesn't mean every disappointing purchase qualifies for a chargeback.

How to dispute a credit card charge

1. Confirm what the charge really is

Start with the statement entry, not just the name you expected. Descriptors can show a parent company, payment processor, hotel group, or subscription brand instead of the store name.

Check:

• Transaction date, posting date, amount, and currency
• Receipts, order confirmations, travel purchases, and online orders
• Recurring subscriptions and free trials
• Purchases by authorized users
• Digital-wallet activity and saved payment methods
• Whether the charge is pending or posted

If the charge is unfamiliar, don't spend days trying to identify the merchant. Report it to the issuer promptly.

2. Contact the merchant unless the charge is fraud

For returns, cancellations, missing items, or service problems, contact the merchant in a way that creates a record. State the amount, purchase date, what went wrong, and what you want.

Ask for one of these:

• Refund or replacement
• Cancellation confirmation
• Corrected charge
• Explanation of a promised credit
• Case or reference number

Save dates, names, emails, chat transcripts, and any promise. Talking to the merchant can solve the problem faster, and it may be required for some claim-and-defense rights. It doesn't stop the issuer's 60-day clock, though. If the merchant stalls, send the dispute before the deadline.

3. Gather evidence that matches the dispute reason

A short, organized packet beats a large pile of unrelated files.

Use copies of:

• The statement page with the transaction marked
• Receipt, invoice, order confirmation, or booking record
• Advertised description, price, terms, or promised delivery date
• Shipping records, tracking, and delivery photos
• Emails, texts, chats, and cancellation confirmations
• Photos showing damage or a material difference
• Return receipts and tracking numbers
• Notes on when you reported fraud or contacted the merchant
• A police or identity-theft report, if relevant

Write a brief timeline. Example: "Ordered on May 4; delivery promised by May 11; contacted merchant on May 15; merchant promised a refund on May 18; no credit appeared by June 2."

Redact sensitive information you don't need to send. Use the issuer's secure portal or the address on your statement. Don't send your full card number, online banking password, or security codes by ordinary email.

4. Send a written billing-error notice

Look for the issuer's billing-error address on your statement. It may be different from the payment address. Send the notice so it reaches the issuer within 60 days after the first statement showing the error was sent to you, and keep a copy.

An app dispute, phone call, or online form may open a case quickly, but don't assume it automatically satisfies the federal written-notice requirement. Ask whether the online submission qualifies. If there is any doubt, send the letter too.

Use this format:

[Your name] [Your address] [Date]

[Issuer name] Billing Error Department [Address shown on the statement for billing-error notices]

Re: Billing error on account ending in [last four digits]

I am writing to dispute a [amount] charge from [merchant] posted on [date]. The reason for my dispute is [unauthorized transaction, duplicate charge, incorrect amount, goods not received, missing credit, or another specific error].

Please investigate and correct my account. I have enclosed copies of [evidence list]. I have paid the portion of my balance that is not in dispute.

Please send me the results of your investigation in writing.

Sincerely,

[Your name] [Phone number or email]

For fraud, state clearly that you did not make or authorize the transaction. Follow any separate fraud affidavit or identity-verification steps from the issuer.

5. Track the case and keep paying the undisputed balance

Record the dispute date, case number, submission method, and the name of anyone you speak with. Save confirmation emails and screenshots.

After a proper, timely billing-error notice, you generally may withhold the disputed amount while the issuer investigates. Pay the undisputed part of the bill by its due date. Don't stop paying the entire statement unless the issuer confirms how your account will be handled.

While the investigation is open, the issuer generally can't treat the disputed amount as delinquent, collect it as a past-due debt, or charge finance charges on that amount. Those protections depend on following the process, so keep proof your notice arrived.

If the issuer offers temporary credit, ask when it will appear and whether it can be reversed later.

6. Review the decision

The issuer should send a written explanation when it finishes the investigation. If it finds an error, check that the charge and related fees were corrected. If it denies the claim, read the reason carefully.

Common denial reasons include:

• The notice arrived after the federal deadline
• The merchant provided delivery or usage records
• Another cardholder authorized the charge
• The issuer needed information that wasn't provided
• The dispute reason didn't match the evidence
• The merchant had already issued a refund
• The issuer treated the issue as a service-quality or contract complaint rather than a billing error

A denial isn't a reason to submit a different, inaccurate claim. Ask the issuer to review the decision and respond to the specific reason. Add new evidence rather than resending the same file.

Credit card dispute deadlines

The key U.S. deadlines are:

• Written notice: Reach the issuer within 60 days after the first statement containing the error was sent.
• Acknowledgment: Generally within 30 days after the issuer receives the notice, unless it resolves the matter sooner.
• Investigation: Generally within two complete billing cycles and no later than 90 days. The 90-day limit is a maximum, not a promise that every case takes that long.
• Merchant or network response: Varies by card network, transaction type, and issuer procedure.

The 60-day period starts when the statement was sent, not necessarily when you noticed the charge. A merchant conversation, phone call, or promise to investigate doesn't extend it.

If you missed the federal deadline, contact the issuer and merchant anyway. The issuer may still accept a dispute under network or account policies, but you may lose the specific FCBA protections tied to timely written notice.

What happens behind the scenes?

After you report a dispute, the issuer classifies it and may submit a chargeback through the card network. The merchant may provide records such as:

• A signed receipt or other authorization record
• Delivery confirmation
• A refund record
• Cancellation or return-policy terms
• Messages showing it tried to resolve the issue
• Digital access or usage information

The issuer reviews your evidence and the merchant's response. Network deadlines and reason codes aren't the same as federal billing-error rules, so avoid relying on a generic "Visa deadline" or "Mastercard deadline" table.

Issuer workflows differ. Chase's consumer guide to disputing a credit card charge describes starting the process through the account and says the transaction is reversed if the issuer agrees. Other issuers may use different screens, forms, evidence limits, and temporary-credit practices. Follow the current instructions and contact information on your statement or card.

The outcome depends on the reason, timing, account history, merchant response, and evidence.

Refund request or chargeback?

Ask the merchant for a refund first when the issue is a normal return, cancellation, delayed delivery, or service complaint. A cooperative merchant can often credit the account faster than a formal investigation.

Use the issuer's dispute process when:

• The charge is unauthorized
• The merchant refuses to correct a clear billing error
• Goods or services weren't delivered as agreed
• A promised refund or credit never appears
• The merchant can't be reached
• The merchant's response doesn't fix the documented problem

Tell the issuer if a refund later appears. A chargeback and a merchant refund for the same amount can create a duplicate credit that the issuer may remove.

Why disputes are denied

Most denials come from a mismatch between the claim and the proof. Before submitting, check:

1. Deadline: Confirm when the first statement was sent and when your written notice arrived.
2. Category: Describe the concrete error, not just that the service was bad.
3. Merchant contact: Show when and how you asked for a refund or correction, unless the transaction was fraud.
4. Amount: Identify exactly what you dispute and explain any partial refund.
5. Delivery record: For non-delivery, include the promised date and tracking history.
6. Cancellation record: For subscriptions, include the cancellation date and confirmation.
7. Return record: For returned goods, include the merchant's instructions and delivery proof.
8. Authorization facts: For fraud, explain who had the card, when you noticed the charge, and when you notified the issuer.

Don't exaggerate a claim, dispute a purchase you made only because you changed your mind, or claim fraud to bypass a return policy. False or repeated disputes can damage your credibility and may lead the issuer to restrict or close the account.

How to appeal a denied dispute

If the issuer rejects the claim:

1. Read the denial letter and identify the exact reason.
2. Request the information or documents the issuer relied on, when its process allows that.
3. Prepare a short response addressing that reason point by point.
4. Add relevant new evidence only.
5. Ask for an internal review or appeal before any deadline in the notice.
6. Keep paying the amount the issuer says is due while the review continues.
7. If the issuer failed to follow the billing-error procedure, document the dates and file a complaint with the Consumer Financial Protection Bureau or the appropriate regulator.

A regulator complaint can highlight mishandling, missing notices, or failure to investigate, but it doesn't guarantee the charge will be removed. You may also have a separate claim against the merchant under the contract or state law. For a substantial amount, consider advice from a qualified consumer-law professional.

Credit cards are different from debit cards

Don't apply the credit-card FCBA timeline to a debit card, prepaid card, payment app, or bank transfer. Debit-card disputes generally fall under different electronic-transfer rules, and waiting can reduce your protections.

If a debit card is lost, stolen, or used without permission, contact the bank or credit union immediately. The FTC also recommends reporting unrecognized charges promptly and keeping written records; see its guidance on lost or stolen credit, ATM, and debit cards.

Frequently asked questions

Can I dispute a charge without contacting the merchant?

Yes, especially for an unauthorized transaction. Report fraud to the issuer immediately. For delivery, cancellation, refund, or quality problems, contacting the merchant first is often useful and may be required for some claim-and-defense rights. It doesn't remove the need to meet the issuer's deadline.

What if the merchant says the sale is final?

A final-sale policy may matter for an ordinary return, but it doesn't automatically validate an unauthorized charge, duplicate charge, incorrect amount, or goods that were never delivered as agreed. Your evidence and the applicable dispute category still control.

Will disputing a charge hurt my credit?

A properly submitted FCBA billing error generally can't be reported as delinquent while the issuer investigates the disputed amount. Pay the undisputed balance and follow the issuer's instructions. If the issuer decides the charge is valid, ask when the amount becomes due and pay it or make another legitimate arrangement.

How long does a credit card dispute take?

The issuer generally must acknowledge a timely written billing-error notice within 30 days and finish the investigation within two complete billing cycles, no later than 90 days. Fraud cases and network chargebacks may be resolved sooner or follow different operational timelines.

What if I missed the 60-day deadline?

Contact the issuer anyway and explain the circumstances. It may have a separate network or account-based process, but don't assume the federal billing-error protections still apply. Contact the merchant at the same time and preserve all records.

Check the first statement that showed the charge, then send the written notice before the 60-day window closes. For non-fraud disputes, send the merchant a written request too, but don't let that conversation delay the formal notice.