Understanding the Chargeback Process
The chargeback process can feel opaque and overwhelming for merchants encountering it for the first time. What starts as a customer complaint to their bank quickly becomes a multi-stage financial and legal process involving four separate parties: the cardholder, the issuing bank, the acquiring bank (your payment processor), and the card network. At each stage, there are specific actions you can take—and critical mistakes you must avoid.
This guide walks through every stage of the chargeback process in detail, covering what happens, who is involved, what the timelines look like across major card networks, and what you as a merchant should be doing at each step.
The chargeback process has six main stages: (1) Dispute Filed → (2) Provisional Credit Issued → (3) Merchant Notified → (4) Representment → (5) Issuer Review → (6) Arbitration. Not all chargebacks progress through every stage. Many are resolved at Stage 4 or 5.
Stage 1: The Dispute Is Filed
The chargeback process begins when a cardholder contacts their issuing bank to dispute a transaction. This can happen through a phone call, an online banking portal, or a mobile app. Modern banking apps have made this process extremely easy—often requiring just a few taps on a smartphone screen.
The cardholder typically provides:
- The transaction they are disputing (identified by date, amount, and merchant name)
- The reason for the dispute (unauthorized charge, product not received, product defective, duplicate charge, etc.)
- Any supporting details or documentation
The issuing bank then evaluates whether the dispute has sufficient merit to proceed. This is not a deep investigation—it is a preliminary screening. The bank checks whether the claim falls within the filing window, whether the reason code is valid, and whether the cardholder's claim is plausible on its face.
Filing Windows by Network
| Card Network | Standard Filing Window | Extended Window (specific cases) |
|---|---|---|
| Visa | 120 days from transaction date | Up to 540 days for certain fraud claims |
| Mastercard | 120 days from transaction date | Up to 540 days for delayed delivery disputes |
| American Express | 120 days from transaction date | Varies by dispute type |
| Discover | 120 days from transaction date | Varies by dispute type |
The filing window starts from the transaction date for most dispute types, but it starts from the expected delivery date for "goods not received" disputes, and from the date the cardholder discovered the issue for defective merchandise claims. This means disputes can appear months after the original sale.
What Should You Do at This Stage?
At this point, you likely do not know a dispute has been filed. However, if you use chargeback alert services like Ethoca or Verifi CDRN, you may receive an early notification during this window. If you do, you have 24 to 72 hours to issue a proactive refund and prevent the dispute from becoming a formal chargeback. This is your best chance to avoid the chargeback entirely.
Stage 2: Provisional Credit Is Issued
Once the issuing bank accepts the dispute as valid, it issues a provisional (temporary) credit to the cardholder for the disputed amount. The key word here is "provisional"—this credit is conditional and can be reversed if the merchant successfully fights the chargeback.
From the cardholder's perspective, it looks like they have already won. Their account has been credited, and the transaction has been reversed on their statement. This creates a psychological dynamic that makes it harder for merchants: even if you win the representment, the cardholder will experience the reversal of the provisional credit as "losing money," which can lead to additional complaints or disputes.
At this stage, the issuing bank also assigns a reason code to the chargeback. This code categorizes the alleged reason for the dispute and is critical for the merchant's response. Each card network has its own set of reason codes:
- Visa: Uses a two-part numeric system (e.g., 10.4 for "Other Fraud - Card Absent Environment," 13.1 for "Merchandise/Services Not Received")
- Mastercard: Uses four-digit codes (e.g., 4837 for "No Cardholder Authorization," 4853 for "Goods/Services Not as Described")
- American Express: Uses alphanumeric codes (e.g., F29 for "Card Member Does Not Recognize Transaction")
- Discover: Uses two-letter codes (e.g., UA02 for "Fraud - Card Not Present Transaction")
Stage 3: The Merchant Is Notified
The chargeback is transmitted from the issuing bank through the card network to your acquiring bank (payment processor), which then notifies you. This notification includes:
- The disputed transaction details (date, amount, card number last four digits)
- The reason code and a brief description of the cardholder's claim
- The deadline for your response
- Instructions for how to submit your representment
Simultaneously, your acquiring bank debits the disputed amount plus a chargeback fee from your merchant account. This fee typically ranges from $20 to $100 and is non-refundable regardless of the dispute outcome. Yes, even if you win the chargeback, you do not get the fee back.
Response Deadlines by Network
| Card Network | Merchant Response Deadline | Notes |
|---|---|---|
| Visa | 30 calendar days | From the date the acquirer receives the chargeback |
| Mastercard | 45 calendar days | From the date the chargeback is filed |
| American Express | 20 calendar days | Amex has the shortest deadline; respond immediately |
| Discover | 30 calendar days | From notification date |
Your actual response deadline may be shorter than the network deadline. Your acquiring bank or processor may impose their own, earlier deadline to allow time for processing. Always check the specific deadline stated in your chargeback notification—do not assume you have the maximum network timeframe.
What Should You Do at This Stage?
- Act immediately. Do not let chargeback notifications sit unread. Set up alerts so you are notified the moment one arrives.
- Review the reason code. The reason code determines what evidence you need to submit. A fraud-related chargeback requires different evidence than a "product not received" claim.
- Decide whether to fight or accept. If the chargeback is legitimate (you genuinely made an error), accepting may be the right choice. If you believe the chargeback is illegitimate, proceed to representment.
- Begin gathering evidence immediately. Do not wait until close to the deadline. Start collecting transaction records, shipping confirmations, customer communications, and any other relevant documentation right away.
Stage 4: Representment (The Merchant's Response)
Representment is your opportunity to fight the chargeback. The term comes from "re-presenting" the transaction to the issuing bank with evidence that the charge was legitimate. This is where the outcome is decided in most cases, making it the most important stage of the process for merchants.
A strong representment package typically includes:
The Rebuttal Letter
A clear, professional written response that directly addresses the reason code and the cardholder's specific claim. This is not a generic template—it should be tailored to the exact dispute. Our response template generator can help you create effective rebuttal letters for common reason codes.
Compelling Evidence
The documentation you submit varies based on the reason code, but commonly includes:
- For fraud claims: AVS match confirmation, CVV verification, 3D Secure authentication records, IP address logs, device fingerprint data, delivery confirmation to the cardholder's billing address
- For "not received" claims: Shipping confirmation, carrier tracking showing delivery, delivery signature, GPS confirmation from carrier, photographs of delivered package
- For "not as described" claims: Product description as shown to the customer, terms and conditions accepted by the customer, customer communications showing satisfaction or usage, return policy as displayed during checkout
- For subscription disputes: Sign-up records, terms of service acceptance, cancellation policy, usage logs showing continued access, billing reminders sent
- For duplicate charge claims: Evidence showing each charge was for a separate transaction or item
The most common reason merchants lose representments is not lack of evidence—it is poorly organized evidence. Issuing bank analysts review hundreds of cases per day. Make your case easy to understand at a glance: lead with your strongest evidence, use clear labels, and connect each piece of evidence directly to the reason code.
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Subscribe for Full AccessCommon Representment Mistakes
- Submitting generic responses. A one-size-fits-all response letter signals to the issuing bank that you did not take the dispute seriously. Tailor every response to the specific reason code and claim.
- Providing irrelevant evidence. If the cardholder claims they did not receive the product, your terms of service are irrelevant. Focus on delivery confirmation and tracking data.
- Missing the deadline. Even one day late means automatic loss. Build in a buffer of at least 5 to 7 days.
- Being confrontational. Calling the cardholder a liar or being aggressive in your rebuttal letter works against you. Be factual, professional, and evidence-driven.
- Submitting too much irrelevant documentation. More is not always better. A 50-page evidence package that buries the key facts will perform worse than a focused 10-page submission that directly addresses every element of the dispute.
- Not addressing the specific reason code. Each reason code has specific evidence requirements. Responding to a fraud chargeback with shipping evidence (when the claim is "I didn't authorize this," not "I didn't receive this") misses the point entirely.
Stage 5: Issuer Review and Decision
After you submit your representment, the issuing bank reviews your evidence against the cardholder's claim. This review is conducted by a disputes analyst at the issuing bank, and the quality of that review varies significantly between institutions.
The issuing bank will make one of two decisions:
Outcome A: Merchant Wins
If the issuing bank finds your evidence compelling, the chargeback is reversed. The disputed funds are returned to your merchant account, the provisional credit is removed from the cardholder's account, and the chargeback is removed from your ratio calculation (though some networks count it regardless). Note that the chargeback fee is not refunded even when you win.
Outcome B: Cardholder Wins
If the issuing bank sides with the cardholder, the chargeback stands. The provisional credit becomes permanent, and the funds remain debited from your account. At this point, you have one more option: escalation to pre-arbitration or arbitration.
Industry data suggests that merchants who submit well-prepared representments win approximately 40% to 60% of the time, depending on the reason code category. Friendly fraud disputes tend to have the highest win rates because the merchant typically has the strongest evidence (the customer did authorize the transaction and did receive the product).
Average chargeback win rates by dispute type: True fraud: 10-20% | Friendly fraud: 50-70% | Merchant error: 15-25%. The vast majority of chargebacks are friendly fraud, which is why fighting back is so valuable. See our guide on friendly fraud for more detail.
Stage 6: Pre-Arbitration and Arbitration
If either party disagrees with the outcome of Stage 5, the dispute can be escalated. This happens in two sub-stages:
Pre-Arbitration
Pre-arbitration (called "pre-arb" in industry shorthand) is an intermediate step used primarily by Visa and Mastercard. It occurs when the issuing bank rejects the merchant's representment and re-asserts the chargeback, or when the merchant disputes the issuing bank's decision.
During pre-arbitration, both parties have one more opportunity to resolve the dispute without involving the card network. The merchant can either accept the loss or escalate to formal arbitration. In some cases, new evidence may emerge at this stage that changes the outcome.
Formal Arbitration
If the dispute cannot be resolved during pre-arbitration, either party can escalate to formal arbitration with the card network. This is the final stage of the chargeback process, and the card network's decision is binding and non-appealable.
Arbitration is expensive:
- Visa: $500 filing fee, paid by the losing party
- Mastercard: $150 to $500 depending on the case type, paid by the losing party
- American Express: Handles disputes internally and does not have a traditional arbitration process
Because of these costs, arbitration is generally only worthwhile for high-value disputes. If you are fighting a $50 chargeback, paying $500 in arbitration fees (with the risk of losing) rarely makes financial sense. For a $5,000 chargeback with strong evidence, arbitration may be well worth pursuing.
Arbitration Timelines
| Network | Pre-Arb Deadline | Arbitration Filing Deadline | Decision Timeline |
|---|---|---|---|
| Visa | 30 days from representment decision | 10 days from pre-arb | 30-60 days |
| Mastercard | 45 days from representment decision | 45 days from pre-arb | 30-90 days |
The Complete Timeline: How Long Does It All Take?
From the moment a cardholder files a dispute to the final resolution, the entire chargeback process can span several months. Here is a realistic timeline for each major network:
| Stage | Visa | Mastercard | Amex |
|---|---|---|---|
| Dispute to notification | 5-10 days | 5-15 days | 3-7 days |
| Merchant response window | 30 days | 45 days | 20 days |
| Issuer review | 15-30 days | 15-45 days | 15-30 days |
| Pre-arbitration (if needed) | 30 days | 45 days | N/A |
| Arbitration (if needed) | 30-60 days | 30-90 days | N/A |
| Total (with arbitration) | 110-160 days | 140-240 days | 38-57 days |
Your Role at Each Stage: A Quick Reference
| Stage | Your Action | Priority |
|---|---|---|
| 1. Dispute filed | If using alert services, issue proactive refund within 24-72 hours | High (if alerted) |
| 2. Provisional credit | No direct action possible; awaiting formal notification | N/A |
| 3. Merchant notified | Review reason code, decide to fight or accept, begin gathering evidence | Critical |
| 4. Representment | Submit compelling evidence package well before deadline | Critical |
| 5. Issuer review | Wait for decision; prepare for potential pre-arbitration | Medium |
| 6. Arbitration | Evaluate whether the transaction value justifies arbitration costs | Case-by-case |
Network-Specific Differences You Should Know
Visa Claims Resolution (VCR)
Visa overhauled its dispute process in 2018 with Visa Claims Resolution, which introduced two distinct workflows: Allocation (for fraud and authorization disputes) and Collaboration (for consumer disputes like merchandise issues). The Allocation workflow places more burden on the party that bears liability, while the Collaboration workflow emphasizes evidence exchange between the parties. Understanding which workflow your dispute falls under affects your strategy significantly.
Mastercard Dispute Resolution Initiative
Mastercard's system emphasizes early resolution through its Collaboration workflow, which encourages communication between the issuer and acquirer before a formal chargeback is filed. Mastercard also uses a system called Ethoca (which it acquired in 2019) to provide merchant alerts and facilitate pre-chargeback resolution.
American Express: A Different Model
American Express operates differently because it functions as both the card network and the issuing bank for most of its cards. This means Amex disputes are handled internally, with Amex acting as the adjudicator. The process is faster but gives merchants less leverage—Amex tends to favor its cardholders. Response deadlines are also shorter (20 days), so speed is essential.
Frequently Asked Questions
If you miss the response deadline, you automatically lose the chargeback with no opportunity to present evidence. The chargeback becomes final, and you forfeit the transaction amount plus all associated fees. There is no appeal process for missed deadlines, and no exceptions are made regardless of the reason for the delay. This is why setting up monitoring and alert systems for chargeback notifications is so critical.
Arbitration fees vary by card network. Visa charges a $500 filing fee for arbitration, while Mastercard charges $150 to $500 depending on the case type. The losing party pays the arbitration fee. Given these costs, arbitration is generally only worthwhile for high-value disputes where you have strong evidence. For most disputes under $500, the potential arbitration fee makes escalation financially impractical.
You get one opportunity to submit a representment for each chargeback. If your representment is rejected, you can escalate to pre-arbitration or arbitration, but you cannot resubmit a new representment with different evidence at the same stage. This is why it is critical to submit your strongest possible case the first time. Gather all available evidence, organize it clearly, and address every element of the reason code in your initial response.
Pre-arbitration is an intermediate step between representment and formal arbitration. It occurs when the issuing bank rejects the merchant's representment evidence and re-asserts the chargeback. The merchant can then either accept the chargeback or escalate to binding arbitration with the card network. Pre-arbitration gives both parties one last opportunity to resolve the dispute before incurring the significant fees associated with formal arbitration.