A chargeback is a forced refund: your customer disputes a card charge with their bank, the bank pulls the money back out of your account, and you have a short window to prove the sale was valid. If you answer on time with the right evidence, you can win the money back; if you miss the deadline, you lose by default. This guide explains what a chargeback is, how the chargeback process works step by step, what the reason codes mean, and how to win the disputes worth fighting while preventing the rest.
Key takeaways
- A chargeback reverses a card sale through the card networks' dispute rules, not through your refund policy. The money usually leaves your account as soon as the dispute is filed.
- Cardholders generally have up to 120 days to dispute a Visa or Mastercard transaction, but you often get only a week or two from your processor to respond.
- The reason code tells you what evidence will win. Fraud disputes need proof the real cardholder made the purchase; "not received" disputes need proof of delivery or completed work.
- Chip and tap sales are your best protection. Keyed, phone, text-to-pay and online sales carry most of the fraud-dispute risk.
- Too many chargebacks can push you into a card-network monitoring program or get your account closed, so prevention matters as much as winning.
What is a chargeback?
A chargeback happens when a cardholder asks their card issuer (the bank that issued the card) to reverse a charge, and the issuer sends that reversal back through Visa, Mastercard, American Express or Discover to your processor. Your processor debits the sale amount from your account, usually along with a chargeback fee, and notifies you. The networks call these "disputes"; most merchants and processors still say chargebacks. They mean the same thing.
Chargebacks exist to protect cardholders. Under the federal Fair Credit Billing Act, consumers can dispute billing errors on a credit card within 60 days of the statement that shows the charge, and their liability for unauthorized use is capped at $50. The card networks build on that with their own rules, which cover debit cards too and usually give cardholders longer than the law requires.
Unlike a refund, which you choose to issue, a chargeback is decided by the issuing bank, comes with a fee, and counts against your dispute ratio even if you later win.
Disputes generally fall into three buckets:
- True fraud: a stolen card or card number was used, and the real cardholder never made the purchase.
- Merchant error: a duplicate charge, wrong amount, missing authorization or a refund that was promised but never processed.
- Customer disputes: the customer says the goods didn't arrive, the work wasn't done, the item wasn't as described, or they canceled. Some of these are legitimate complaints; others are buyer's remorse or a charge the customer simply doesn't recognize, sometimes called "friendly fraud."
How the chargeback process works, step by step
Each network has its own terms, but the chargeback process follows the same basic path:
- The cardholder disputes the charge with their bank, by phone or in their banking app.
- The issuer files the dispute through the card network with a reason code, and provisionally credits the cardholder.
- Your processor debits your account for the transaction amount and notifies you, usually through your merchant portal, email or a letter. This is when your response clock starts.
- You accept or fight. Accepting means the cardholder keeps the money. Fighting means submitting a written response with evidence, a step called representment.
- The issuer reviews your evidence. If it's convincing, the funds are returned to you. If not, the cardholder keeps the credit.
- Pre-arbitration and arbitration are possible if either side keeps disagreeing. The network makes the final ruling, and arbitration fees can be significant, so most small businesses stop before this stage.
Chargeback deadlines
| Deadline | Visa | Mastercard |
|---|---|---|
| Cardholder's window to dispute | Generally up to 120 days from the transaction or expected delivery date (longer in some cases) | Generally 120 days from the transaction date (longer for some non-delivery and service cases) |
| Network response window | 30 days for each phase of the dispute | 45 days to respond with representment evidence |
| What you actually get | Whatever your processor allows. Processors need time to package and file your response, so many give merchants a much shorter internal deadline, often 5 to 10 days. Check your merchant portal and agreement. | |
The most common way to lose a chargeback is to never answer it. A dispute notice that sits in an unread inbox or an old mailing address is a lost dispute. Make sure your processor has a current email for dispute alerts, and that someone checks it.
Chargeback reason codes explained
Every dispute carries a reason code, and chargeback reason codes matter because they decide what evidence the issuer will accept. Visa groups its dispute conditions into four categories:
| Visa category | Codes | Typical situations | Evidence that tends to help |
|---|---|---|---|
| Fraud | 10.x | Stolen card, card-absent fraud, counterfeit card at a terminal that didn't read the chip | Chip or tap read data, signed work order, delivery to the cardholder's billing address, prior undisputed orders from the same customer |
| Authorization | 11.x | No authorization obtained, or a declined authorization that was forced through | Authorization approval code and date |
| Processing errors | 12.x | Duplicate charge, wrong amount, late presentment, paid by other means | Batch reports showing one charge, receipts showing the correct amount, proof the other payment didn't occur |
| Consumer disputes | 13.x | Not received, not as described, canceled recurring charge, credit not processed | Delivery confirmation, signed pickup or completed work order, your posted refund policy, customer messages |
Mastercard uses its own four-digit codes (for example, 4837 for "no cardholder authorization" and 4853 for "cardholder dispute"), and American Express and Discover have their own sets, but the logic is the same: match your evidence to the claim. Sending a pile of unrelated paperwork rarely helps.
How to win a chargeback
You won't win every dispute, and you shouldn't fight every one. If a customer was charged twice, refund the duplicate and accept the chargeback. Save your effort for disputes where the sale was real and you can show it. When you do respond:
- Respond before your processor's deadline, not the network's. Late responses are not considered.
- Answer the reason code directly. Open with a one-paragraph summary: what was sold, when, to whom, and why the dispute is invalid.
- Include the transaction record: date, amount, authorization code, last four digits of the card and how it was taken (chip, tap, keyed or online).
- Prove the customer received what they paid for: signed work orders or repair orders, pickup signatures, tracking with delivery confirmation, or photos of completed work.
- Show they agreed to the terms: the signed estimate, your refund or cancellation policy as shown at checkout or on the receipt, and any deposit terms.
- Add customer communication that shows they knew about and accepted the charge, such as texts approving an estimate or an email confirming a pickup time.
Visa Compelling Evidence 3.0 for online fraud claims
If you sell online and get a Visa fraud dispute under reason code 10.4 (card-absent fraud), Visa's Compelling Evidence 3.0 rules can help. You need two earlier, undisputed transactions with the same cardholder that took place between 120 and 365 days before the disputed one, and at least two matching data points across all three, such as user ID, IP address, shipping address or device ID, with at least one being the IP address or device ID. If your online store or payment gateway captures that data, ask your processor whether it is being submitted with your responses.
How to prevent chargebacks in the first place
The cheapest chargeback is the one that never gets filed. Most prevention comes down to how you take cards and how clearly you communicate:
- Dip or tap whenever the card is present. Since the U.S. EMV liability shift, counterfeit-card fraud losses on a sale that could have been chip-read but was swiped or keyed generally fall on the merchant. Contactless and chip transactions carry much less fraud-dispute risk.
- Use a recognizable billing descriptor. If your statement name doesn't match your storefront, customers dispute charges they actually made. Ask your processor what name and city appear on cardholder statements.
- Get written approval for large or remote jobs. For auto repair, that means a signed or texted approval on the estimate before work starts. Our guide to credit card processing for auto repair shops covers payment links, deposits and keyed-sale risk in more detail.
- Keep the card in the guest's sight. Restaurants that use handheld terminals at the table cut down on "card taken to the back" disputes and tip-adjustment errors. See our article on pay-at-the-table for restaurants.
- Post your refund policy at the register, on your website checkout and on receipts. Respond quickly to complaints and issue refunds before a frustrated customer calls their bank.
- Use dispute alerts where available. Some processors offer pre-dispute tools that warn you about a dispute or share order details with the issuer before a chargeback is filed, giving you a chance to refund or clarify first. Ask what's available and what it costs.
Chargeback ratios and monitoring programs
Card networks track how often your sales turn into disputes. Cross their thresholds and your processor can add fees, require a reserve, or close your account.
- Visa Acquirer Monitoring Program (VAMP). Visa's current program measures card-not-present fraud reports plus disputes against settled card-not-present transactions. On April 1, 2026, Visa lowered its "excessive merchant" threshold in the U.S. from 2.2% to 1.5%, for merchants with at least 1,500 combined fraud reports and disputes in a month. Your processor may hold you to tighter internal limits well before you reach Visa's.
- Mastercard. Mastercard's excessive chargeback program is widely reported to flag merchants with at least 100 chargebacks in a month and a ratio of 1.5% or more, with higher tiers above that.
- MATCH. If an account is closed for excessive chargebacks or fraud, the business can be listed on Mastercard's MATCH database, which makes it hard to get a new merchant account. Our guide on how to choose a merchant services provider explains MATCH and why dispute support belongs on your list of questions.
Most coffee shops, restaurants and auto shops that take cards in person will never come near these numbers. The risk grows with online sales, phone orders, deposits for future work and subscriptions.
What a chargeback really costs
A chargeback costs more than the sale. You lose the merchandise or labor, the processing fee you already paid on the original sale, the chargeback fee your processor charges for handling the dispute, and staff time to respond. If you win, the sale amount comes back, but many processors keep the chargeback fee either way. Check your merchant agreement or statement for your chargeback fee, retrieval-request fee and any arbitration fees; our explainer on credit card processing fees shows where these line items usually appear.
A good processor helps with more than a notice and a fee: clear alerts, a portal that shows each dispute's deadline, and a person who can tell you what evidence fits the reason code. That's the kind of support we build into our merchant services and products. If you'd like to see what your current chargeback, retrieval and other fees add up to, send us a recent statement for a free statement review.
Frequently asked questions
What is a chargeback in simple terms?
A chargeback is when a customer disputes a card payment with their bank and the bank reverses it, taking the money back from the business. The business can respond with evidence, and if the evidence shows the sale was valid, the money is returned.
How long does a customer have to file a chargeback?
For Visa and Mastercard, cardholders generally have up to 120 days from the transaction or expected delivery date, and some situations allow longer. The federal Fair Credit Billing Act separately gives credit card holders 60 days from the statement date to dispute billing errors.
Can a merchant win a chargeback?
Yes. If you respond before your processor's deadline with evidence that matches the reason code, such as a chip-read receipt, a signed work order or proof of delivery, the issuer can reverse the chargeback and return the funds to you.
What happens if I ignore a chargeback?
You lose it by default. The cardholder keeps the refund, you still pay the chargeback fee, and the dispute counts toward your chargeback ratio.
Should I refund a customer who has already filed a chargeback?
No. Once a chargeback is filed, the money has already been taken from your account. Issuing a refund as well can mean paying the customer twice. Respond through the dispute process instead, or accept the chargeback if the claim is valid.
Sources and further reading
- Visa: Merchant disputes and dispute categories
- Visa: Visa Acquirer Monitoring Program fact sheet
- Checkout.com: Visa Compelling Evidence 3.0 explained
- Cornell Law School LII: Fair Credit Billing Act
This article is general information, not legal advice. Network rules change, so confirm current deadlines with your processor.