Should you refund, accept the chargeback or fight it? Compare the real cost of each choice with your processor's fees, then check your Visa and Mastercard chargeback ratio.
When a customer is unhappy with a payment, a merchant usually has three choices: refund the order, accept the chargeback when the customer goes to their bank, or fight it by submitting evidence. Each one costs a different amount, and the cheapest choice changes with the order value, your processor's fees, whether the goods come back and how good your evidence is.
This chargeback vs refund calculator puts all three side by side for a single order. It uses the published dispute fees of Stripe, Shopify Payments, PayPal, Braintree and Square, accounts for processing fees that are never returned, and weighs the cost of fighting against your realistic chance of winning. A second panel checks your monthly chargeback ratio against the current Visa and Mastercard monitoring thresholds.
Refunding is often the cheapest exit, but it is not free. Major processors keep their fee when you refund:
On top of that, you lose the product unless it comes back in sellable condition, and returns have their own handling and shipping costs. That is why the calculator asks what you actually recover from a returned item instead of assuming a refund costs only the fee.
For orders flagged by an early fraud warning, Stripe gives a useful rule of thumb: refunding is worth it when the charge is roughly equal to or less than your dispute fee, and "likely not worthwhile" once the charge is more than 35% above it, according to Stripe's dispute guide, which also notes that about 40% of Visa and Mastercard early fraud warnings turn into fraud disputes.
When a chargeback lands, the full order value is pulled from your balance straight away and you lose:
Timing also works against you. Card networks typically let cardholders dispute a payment within 120 days of the original charge (Stripe), and once a dispute is open you can no longer refund that payment through Stripe. Decide early.
Mastercard's 2025 State of Chargebacks research with Datos Insights found that when merchants contest a chargeback, issuers win about 75% of cases and merchants about 20%, with the remaining 5% going on to pre-arbitration or arbitration (Mastercard, as summarised by Chargeback Gurus). At those odds, fighting a low-value order usually costs more than it recovers.
The calculator turns that into one number, the break-even win chance:
break-even = (response fee + staff cost) ÷ (amount you get back if you win)
If your realistic chance of winning is above that percentage, fighting is worth it; below it, accepting the chargeback loses less money. Two processor details move the result. Stripe returns its $15 dispute countered fee if you win but keeps the $15 dispute fee, while Shopify Payments returns its chargeback fee when you win. Use the two checkboxes to match your processor.
| Processor | Chargeback / dispute fee | Returned if you win? |
|---|---|---|
| Stripe | $15 dispute fee, plus $15 if you respond manually | The $15 response fee only |
| Shopify Payments | $15 (£10 UK, €15 most of Europe, A$25 Australia, ¥1,300 Japan) | Yes |
| PayPal | $20 card chargeback fee; $15 standard dispute fee ($30 at high dispute volumes) | No |
| Braintree | $15 | Check your contract |
| Square | No dispute fee | Not applicable |
| Adyen | Set by contract for every booked chargeback; losing at arbitration can cost up to $600 | Per contract |
Fees change, so check your processor's pricing page or contract before relying on any figure.
A single chargeback is a cost. A high chargeback ratio is a threat to your ability to take cards at all. Both networks run monitoring programs, and the ratio panel in the calculator checks you against both.
Since June 2025, Visa measures card-not-present merchants with a single VAMP ratio: fraud reports (TC40) plus disputes (TC15), divided by settled transactions. From 1 April 2026 a merchant in the US, Canada, Europe or Asia Pacific is "excessive" at a ratio of 1.5% or more with at least 1,500 fraud reports and disputes in the month. Visa also monitors acquirers, flagging their portfolios at 0.5% and 0.7%, which is why processors often act before a merchant reaches its own threshold (Visa VAMP fact sheet). The older 0.9% Visa figure that many sites still quote no longer applies.
Disputes resolved through Visa's pre-dispute tools, and fraud claims that qualify under Compelling Evidence 3.0, are excluded from the VAMP ratio. Disputes deflected with Verifi Order Insight also do not add to dispute ratios (Visa CE3.0 FAQ).
Mastercard compares this month's chargebacks with last month's transactions. A merchant becomes an Excessive Chargeback Merchant at 1.5% with at least 100 chargebacks in a month, and a High Excessive Chargeback Merchant at 3% with at least 300. Assessments start in the second consecutive month, and a merchant has to stay below the threshold for three consecutive months to leave the program (J.P. Morgan's Mastercard program guide).
Many cardholders do not see a difference between the two. Chargebacks911's 2024 field research found that 75% of customers think a chargeback is the same as a refund, and half believe a chargeback is faster (Chargebacks911). In the US, consumers also have legal backing: the CFPB advises sending a written billing-error notice to the card issuer within 60 days of the charge appearing on a statement, under the Fair Credit Billing Act.
The practical lesson: make refunds easier to get than chargebacks. A customer who can get their money back in one email has little reason to call their bank.
Screening cards before you ship also helps. Our BIN checker shows a card's issuing country and whether it is prepaid, which you can compare with the customer's address, and the credit card validator catches mistyped numbers at checkout.