Quick answer:
A chargeback is a forced reversal of a card payment: your customerâs bank pulls the funds from your account after a dispute, before any investigation finishes. The cardholder complains to their issuer, not to you, and the money leaves first.
The disputed amount comes out of your next payout, along with a dispute fee most processors charge regardless of the outcome. You get a short, fixed window to submit evidence, and if your shop crosses the card networksâ dispute-ratio thresholds, you enter a monitoring program with escalating fines.
A chargeback is not a refund with some extra paperwork. It is a bank decision that happens to your store, not a decision your store makes, and it costs more than the original sale.
The stakes rose in 2026, because Visa lowered the ratio that labels a merchant excessive. Here is how a dispute actually runs, what it costs you, and where the current thresholds sit.
What is a Chargeback? The Basics
A chargeback starts with a phone call or a tap in an app that you never see. The cardholder tells their issuing bank the charge was wrong, and the bank acts on that claim right then.
As Stripeâs explainer notes, the issuing bank withdraws the disputed amount from your account through your acquirer while it investigates, before you have had any chance to reply. That order of events is the whole design. Chargebacks exist to protect consumers, so the systemâs default position is that the cardholder should be made whole first.
Common reasons a shopper files one: goods never arrived, an item didnât match its description, a duplicate charge, a subscription they thought was canceled, or genuine card fraud. A fair share are none of those. Friendly fraud, where a customer disputes a purchase they made and received, looks identical until you produce proof.
Chargeback vs Refund vs Inquiry
Three things get lumped together in conversation, and they behave completely differently.
| Event | Who starts it | Does money move? | Extra fee? |
|---|---|---|---|
| Refund | You | Yes, on your timeline | No dispute fee |
| Inquiry or retrieval request | The issuing bank | No, itâs a request for information | No, unless it escalates |
| Chargeback | The issuing bank, on the cardholderâs claim | Yes, pulled out immediately | Yes, at most processors |
A refund is always cheaper than a chargeback on the same sale. You control the timing, you pay no dispute fee, and the transaction never counts toward your dispute ratio. That is the practical argument for answering complaints quickly. A customer who cannot reach you within a day or two calls their bank instead, and the same unhappy shopper becomes a far more expensive problem.
Vocabulary varies by provider. Stripe and Square use âdisputeâ as the umbrella word for the whole process, Shopify uses âinquiryâ for the preliminary stage, and âchargebackâ properly refers to the point where funds are actually reversed.
The Dispute Lifecycle, Step by Step
Here is the sequence, with a note on who holds the money at each stage:
- The cardholder files with their issuing bank. You are not involved and are not consulted. Money: still with you, briefly.
- The issuer pulls the funds. The disputed amount comes back through the acquirer and out of your account or next payout. Money: with the cardholderâs bank.
- You are notified and given a deadline. Squareâs own dispute walkthrough gives merchants seven days to respond. Shopify allows 7 to 21 days depending on the dispute category. Money: with the cardholderâs bank.
- You accept or fight it. Fighting means representment: submitting delivery confirmation, receipts, customer messages and AVS, CVV or 3D Secure records through your acquirer. Money: with the cardholderâs bank.
- The issuing bank rules. The review can take weeks or months, and the decision is usually final at this stage. Money: returned to you if you win, kept by the cardholder if you lose.
- Arbitration, if you still disagree. Visa, Mastercard, American Express and Discover each run their own final appeal process. Money: held pending the networkâs ruling.
The evidence window is short and it starts without warning, which is why the retailers who win are the ones who already had tracking numbers, signed delivery confirmations and order notes filed against every sale before the dispute existed.
On the customerâs side the clock is far longer. An industry reference summarizing Visaâs Dispute Management Guidelines puts the cardholderâs filing window at up to 120 days from the transaction or expected delivery date, stretching to 540 days for certain non-receipt cases, and gives merchants 30 days per dispute phase with only 10 days to escalate to arbitration. That is secondary sourcing rather than a Visa-published document, so treat the numbers as planning guidance and confirm the current windows with your acquirer.
What a Chargeback Actually Costs You
Take a boutique on Shopify Payments selling a $220 jacket online. Weeks later the customer disputes the charge with their bank as goods not received.
The issuing bank pulls the $220 sale, and Shopify adds its dispute fee of $15, which it deducts from your next payout in most locations regardless of who eventually wins. That is $235 out of your account before a single piece of evidence has been reviewed.
Win the case and both the $220 and the $15 come back. Lose it and the sale, the shipping cost, the jacket itself and the fee are all gone at once.
Dispute fees vary sharply between providers. Square states it covers dispute management costs itself and charges merchants $0, while Stripe puts the industry-wide range at $15 to $100 per chargeback depending on the processor and your merchant agreement.
The invisible cost is staff time. Assembling tracking records, pulling receipts and writing a representment case takes a manager away from the floor, and it happens on the bankâs schedule rather than yours. A comparison of what different providers charge around disputes sits in Squareâs POS pricing and fees.
Chargeback Ratios and Getting Flagged
The most important number in this entry changed on April 1, 2026. Visa cut the VAMP Excessive Merchant threshold from 2.20% to 1.50%, according to Visaâs own Visa Acquirer Monitoring Program fact sheet. Most published explainers still quote the old figure.
In practice that means a store in the AP, Canada, EU or US regions is flagged as Excessive at 150 basis points rather than 220, once it records at least 1,500 combined fraud reports and disputes in a month. The bar for getting into trouble moved roughly a third closer.
The VAMP ratio is calculated as fraud reports plus disputes divided by settled transactions, counting card-not-present transactions only. In-store chip sales do not dilute the denominator, which matters enormously if your online channel is small but growing.
Visa also applies thresholds at the acquirer portfolio level: 0.50% or higher counts as Above Standard, and 0.70% or higher as Excessive, with that Above Standard level in force from January 1, 2026. A merchant well under the individual threshold can still get squeezed by an acquirer working to protect its own portfolio ratio.
Mastercard runs its own program with two tiers, Excessive Chargeback Merchant and High Excessive Chargeback Merchant. A JPMorgan merchant guide documenting the program, dated December 2019 and therefore older sourcing than the Visa figures above, sets ECM at 100 or more chargebacks a month plus a ratio of 1.50% and HECM at 300 or more chargebacks plus a ratio of 3.00%, with fines escalating from 1,000 to 100,000 or 200,000 euros or dollars by consecutive months in violation. An industry source dated 2025 reports the same thresholds, but that could not be confirmed against a Mastercard-published document.
Getting flagged is not just a fine. A monitoring program obliges the acquirer to demand a remediation plan, and repeat offenders face reserves, higher pricing, and in the end the loss of card acceptance altogether.
Card-Present vs Card-Not-Present: Who Eats the Loss
Who absorbs a fraud chargeback depends on how the card was accepted, not on who was wronged.
Under the EMV liability shift, whichever party used the less secure technology absorbs the fraud loss. If your terminal cannot read a chip and you swipe a chip card instead, you generally eat the loss even though the fraud was somebody elseâs doing.
A properly completed chip or contactless sale puts you in a far stronger position, because the terminal itself produced cryptographic proof that the genuine card was in your store.
Card-not-present sales have no such proof. Online, phone and keyed transactions rely on address checks, security codes and 3D Secure results, which is exactly why processors price them higher and why Visaâs VAMP ratio counts them exclusively.
If you sell through both channels, that means the online side carries most of your dispute exposure even when it brings in a minority of the revenue.
Reducing Chargebacks in a Retail Store
Prevention is cheaper than representment in every case, because a dispute that never gets filed costs nothing and never touches your ratio.
- Fix the statement descriptor: a shopper who doesnât recognize the name on their statement calls the bank rather than you.
- Dip or tap, never swipe: a chip read shifts fraud liability away from your store.
- Keep delivery evidence by default: tracking and signature confirmation on every shipped order, filed against the order record.
- Answer complaints within a day: a fast refund beats a chargeback on cost every single time.
- Turn on address and security code checks: AVS, CVV and 3D Secure produce the records that win representments later.
- Publish return terms at checkout: unambiguous policy text is evidence, not decoration.
Card data handling belongs in the same conversation, and the guide to PCI compliance for small business retailers covers the storeâs side of it.
