How to Respond to a Chargeback: Step-by-Step Guide for Merchants

You just received a chargeback notification. The clock is already ticking — Visa gives you 30 days, Mastercard 45, Amex just 20. Most merchants make the same three mistakes in the first hour. This guide tells you exactly what to do, in order.

What to Do in the First 24 Hours

The first thing to do is not panic — and not immediately submit a response. Responding too quickly with incomplete evidence is one of the most common reasons merchants lose winnable disputes. The goal of the first 24 hours is to understand what you're dealing with and prepare to respond well, not to respond fast. Here is the correct sequence.

1. 1

   Record the deadline.

   Open your processor dashboard and find the exact response due date. Write it down. Set a calendar reminder 5 days before the deadline. Visa: 30 days. Mastercard: 45 days. Amex: 20 days. Discover: 30 days. Missing the deadline is an automatic loss — no exceptions.

2. 2

   Identify the reason code.

   The chargeback notification includes a reason code (e.g., Visa 13.2, Amex C28, MC 4853). The reason code tells you exactly what the cardholder is claiming and what evidence you need. Read our chargeback reason codes guide to understand what you're dealing with.

3. 3

   Read the full dispute narrative.

   Most chargebacks include a brief description of the cardholder's complaint. Read it carefully — your evidence must address exactly what they're claiming, not a generic version of the dispute.

4. 4

   Pull the transaction record.

   Get the full order details: what was ordered, when, the shipping and delivery status, and any customer communications. You need this before you can assess whether you have a case.

Should You Fight or Accept?

Not every chargeback is worth fighting. The decision isn't binary — it's economic. Here is the framework.

The economics: Chargeback fees typically run $15–$100. If the transaction is $30, even winning barely breaks even. Factor in the time cost of preparing the response — it's real money. The decision to fight should be deliberate, not automatic.

The 5-Step Response Process

Once you decide to fight, follow this process in order. Skipping steps or reversing the sequence is one of the main reasons merchants submit weak responses.

Step 1: Match your evidence to the reason code

Each reason code has specific evidence requirements. Fraud disputes need authentication or delivery proof. Recurring billing disputes need your cancellation log. Processing error disputes need authorization records. Read the specific reason code page for your code — don't submit generic documentation when the reason code demands something specific.

Step 2: Gather your evidence

Collect every document before writing a word of your rebuttal. You will typically need: the order confirmation, delivery confirmation or shipping tracking, any customer communications (email, chat, support tickets), your product or service description as it appeared at the point of purchase, and any code-specific evidence such as a cancellation log, authorization record, or photos of the product. Gather everything first. A partial submission is a weak submission.

Step 3: Write a focused rebuttal letter

Your rebuttal letter is the frame that connects your evidence to the specific claim. It should:

• State the chargeback reference number and reason code
• Summarize your response in 2–3 sentences
• Reference each piece of evidence by exhibit number
• Use past tense — what happened — not future tense — what you will do
• Be specific, not generic

What not to do: don't write “we are a reputable business and would never defraud customers.” Don't describe your policies generally. Every sentence should address the specific claim in the dispute. Adjudicators read dozens of these — generic letters get dismissed.

Step 4: Submit before the deadline

Log in to your processor's dispute management portal. Upload your rebuttal letter and each piece of evidence as a labeled PDF. Submit at least 3 days before the deadline — this gives you time to fix any submission errors. A portal that rejects a file format on the day of the deadline is an automatic loss.

Step 5: Track the outcome

Dispute outcomes typically take 30–90 days. Check your processor portal regularly. If you lose, review why — was evidence missing? Was the reason code defense incomplete? Each loss is data. Use it to improve future responses and to identify patterns in why disputes are being filed at all.

Common Mistakes That Lose Winnable Disputes

Most disputes that merchants lose were winnable. The losses come from a small set of repeatable mistakes that are entirely avoidable once you know what they are.

What Happens After You Respond

After submitting your response, the dispute enters a review period. The timeline and possible outcomes depend on the network and whether the issuer accepts your response.

• Pre-arbitration

  If your response is insufficient, the issuer may escalate rather than accepting. You'll receive another notification and have the opportunity to submit additional evidence.

• Chargeback won

  The funds are returned to your account. This typically takes 30–60 days after your response is accepted.

• Chargeback lost

  The funds are permanently debited. You can request arbitration for high-value disputes, but this is expensive and rarely worth it below $500 — the arbitration fees alone can exceed the transaction value.

The most important metric to track is not your win rate in isolation — it's your chargeback rate. Each dispute (win or loss) counts toward your monthly chargeback rate. If your rate exceeds 0.9% of transactions (Visa) or equivalent thresholds for other networks, you enter monitoring programmes. Win rates matter, but keeping your overall dispute volume low matters more.

When to Get Professional Help

If you're receiving more than 10 chargebacks per month, responding in-house is expensive in staff time. The average response takes 2–4 hours — at 10 disputes per month that's up to 40 hours of work that generates no revenue.

Professional dispute management teams achieve higher win rates because they know every reason code's exact evidence requirements, they never miss deadlines, and they track and learn from every dispute outcome across hundreds of merchants. That pattern recognition compounds over time in ways that in-house teams working on occasional disputes simply can't replicate.

At $10 per case with no monthly minimum, ChargeMate outsourcing is cost-effective for most merchants from the first dispute onward — the fee is recovered from a single won dispute.