Chargebacks, Apr 24, 2026
You logged into your payment portal, opened an email from your bank, or checked your merchant dashboard and saw words you didn't want to see: Chargeback Notice. Money has been pulled from your account. There's a deadline. And the instructions make no sense.
You're not alone. Most chargebacks land in a merchant's inbox with little to no guidance on what to do next.
This guide walks you through exactly what a chargeback is, what just happened to your account, and the steps you need to take right now to protect your revenue.
A chargeback is a forced reversal of a transaction initiated by your customer's bank, not by you and not by your payment gateway. When a cardholder disputes a charge, their issuing bank provisionally returns the funds to the cardholder and pulls that amount directly from your merchant account.
This is different from a refund, which you initiate. A chargeback is initiated by the bank, on behalf of the cardholder, and it bypasses you entirely until you receive the notification.
Along with the reversed funds, you will also be charged a chargeback fee by your acquiring bank. These fees typically range from $20 to $100 per dispute, regardless of the outcome.
Chargebacks are filed under specific reason codes assigned by the card network, either Visa or Mastercard. Each reason code corresponds to a category of dispute, such as:
Here is what many merchants don't know: a large percentage of chargebacks are not the result of actual fraud. Friendly fraud can account for up to 75% of chargebacks, per Visa internal reporting published by Verifi. This is commonly referred to as friendly fraud, and it includes situations where a customer simply forgets a purchase, disputes a charge to avoid going through a return process, or files a chargeback instead of contacting the merchant.
That means the majority of what looks like fraud on your notification may be a legitimate transaction that a customer has chosen to dispute through their bank rather than through you.
When you receive a chargeback notification, you have two choices.
Option 1: Accept the chargeback. You do nothing, the reversal stands, and the funds are permanently lost. The chargeback is also counted against your chargeback ratio, which can affect your standing with your payment processor if it climbs too high.
Option 2: Fight the chargeback (representment). You submit a formal response with evidence that the transaction was legitimate. If your response is accepted by the card network, the funds are returned to your account.
Most merchants choose Option 1 by default, not because they want to, but because the process for Option 2 feels complicated and time-consuming. Merchants responded to only 43% of chargebacks (Chargebacks911), so more than half of all disputes go completely unanswered, and merchants recovered in just 12%. Unanswered disputes are automatically lost.
This is the most important thing to understand: chargebacks have hard deadlines.
Visa allows 30 days and Mastercard allows 45 days at the network level, but your processor usually gives you less, often 7 to 21 days, and the date on your notification governs. Once that deadline passes, your right to dispute is forfeited and the loss is permanent.
Check your notification for:
You will need all four to submit a proper response.
Every chargeback notification includes a reason code assigned by the card network. For Visa disputes, you will see codes like 13.1 (merchandise not received) or 10.4 (card-not-present fraud). For Mastercard disputes, codes like 4853 (cardholder dispute) or 4837 (no cardholder authorization) are common.
The reason code determines what evidence you need. A response built around the wrong evidence will be rejected regardless of how strong it is.
Once you know the reason code, collect the documentation that directly addresses that specific dispute. Common evidence includes:
The strength of your response depends on how directly your evidence answers the specific claim in the reason code.
A representment letter is the formal document you submit to your acquiring bank alongside your evidence. It is not a customer service email. It is a structured legal argument addressed to the card network's dispute review team.
An effective representment letter references the specific reason code, addresses each element of the dispute directly, summarizes the evidence attached, and requests that the chargeback be reversed in your favor.
Generic template letters that do not address the specific reason code are one of the most common reasons merchants lose disputes they should win.
Submit your representment package, including the letter and all supporting evidence, to your acquiring bank before the deadline on your notification. Most banks accept submissions through their online merchant portal, by fax, or by email. Confirm the submission method with your bank if you are unsure.
Keep a copy of everything you submit, including the date and confirmation of receipt.
After submission, the card network reviews both sides of the dispute and issues a ruling. The whole process takes up to about 120 days, with the issuer decision taking 60 to 75 days. If your response is accepted, the funds are returned to your account. If it is rejected, you may have the option to pursue arbitration, though this involves additional fees and is generally reserved for higher-value disputes.
Responding with the wrong evidence. A one-size-fits-all approach does not work. Each reason code has specific evidentiary requirements defined by the card network. Submitting delivery confirmation for a dispute filed under a fraud code, without also addressing the authorization question, will likely result in a loss.
Using a generic rebuttal letter. A letter that does not reference the specific reason code, the case number, or the specific facts of the transaction is easy to dismiss. Card network reviewers process hundreds of cases. A letter that reads like a template gets treated like one.
Missing the deadline. There are no extensions. Once the window closes, the dispute is over.
Not responding at all. As noted above, more than half of all chargebacks go unanswered. An unanswered chargeback is an automatic loss. Even a partial response is better than no response.
Every chargeback you receive, whether you fight it or not, counts toward your chargeback ratio. This is the percentage of your total transactions that result in chargebacks over a rolling period.
Visa and Mastercard both run monitoring programs for merchants whose chargeback ratios climb too high. Merchants who cross those thresholds can face higher processing fees, mandatory remediation programs, or termination of their merchant account.
Accepting chargebacks as a cost of doing business is not a neutral decision. It accumulates over time and can threaten your ability to accept card payments altogether.
Not every chargeback is worth disputing. If the customer genuinely did not receive the product, if there was an actual billing error, or if the transaction was clearly fraudulent, accepting the chargeback may be the right decision.
However, if the transaction was legitimate, if you have evidence that the customer received what they paid for, or if the dispute appears to be friendly fraud, you have every right and often good reason to respond.
The decision to fight should be based on the strength of your evidence and the amount at stake, not on how complicated the process feels.
Responding to a chargeback does not require an attorney, a managed service, or weeks of your time. What it requires is a response letter that directly addresses your specific reason code, paired with the right evidence.
FightMyChargeback.com generates a professional, reason-code-specific response letter in under 5 minutes. Powered by the payments experts at Canyon Payments. No subscription. No integration. Just $15.
How long do I have to respond to a chargeback? Visa allows 30 days and Mastercard allows 45 days at the network level, but your processor usually gives you less, often 7 to 21 days. Check your notification for the exact deadline, because that date governs.
What happens if I don't respond? The chargeback stands, the funds are permanently reversed, and the dispute counts against your chargeback ratio.
Do I need a lawyer to fight a chargeback? No. Chargebacks are resolved through the card network's dispute process, not through the courts. A well-documented representment letter with the right evidence is the standard mechanism for contesting a dispute.
What is a reason code? A reason code is a standardized code assigned by Visa or Mastercard that categorizes the type of dispute being filed. It determines what evidence is relevant and how your response should be structured.
Does FightMyChargeback.com work for Visa and Mastercard? Yes. FightMyChargeback.com supports Visa and Mastercard disputes across all major reason codes.
Powered by the payments experts at Canyon Payments. FightMyChargeback.com is a self-serve dispute response tool. We do not provide legal advice. Chargeback outcomes depend on the specific facts of each dispute and the evidence available.