Chargeback ratio calculator

Enter a month of transactions and disputes to get your chargeback ratio, and see how it compares with Visa's VAMP and Mastercard's Excessive Chargeback Merchant thresholds. It runs in your browser; nothing is sent anywhere.

Your month

Settled sales in the month. Mastercard uses the previous month's count.
Every dispute filed, won or lost.
Optional — for Visa VAMP and the volume ratio
Issuer fraud reports, including ones that never became disputes. Your processor or acquirer can provide this.

Your chargeback ratio

0.70%Watch zone

28 disputes on 4,000 transactions.

Visa VAMP1.00%
Mastercard ECM0.70%
Ratio by dollar volume0.70%

Thresholds as of 2026 for the US, Canada, Europe, APAC and LATAM; CEMEA and individual acquirers differ. Confirm yours with your acquirer.

How to calculate your chargeback ratio

The standard formula is chargebacks ÷ transactions × 100 for the same month. Eighteen chargebacks on 4,000 orders is 0.45%. Count every dispute that was filed, including the ones you went on to win: monitoring programs count disputes when they arrive, so winning representment doesn't lower the ratio.

The card networks each tweak the formula:

Chargeback ratio thresholds

Ratio (by count)What it means
Below 0.5%Healthy. Comfortable margin below every program.
0.5% – 0.9%Watch zone. Acquirers start asking questions, especially if the trend is rising.
0.9% – 1.5%Danger zone. Below the 2026 network lines, but one bad month (a fraud attack, a shipping delay) can push you over.
1.5% and aboveVisa VAMP excessive (with fraud reports included) and Mastercard ECM territory (with 100+ chargebacks). Expect fees and remediation plans.
3.0% and aboveMastercard High Excessive Chargeback Merchant (with 300+ chargebacks). Account termination and MATCH listing become real risks.

How to lower your ratio

Only prevention moves the number: fewer disputes filed, or disputes stopped before they become chargebacks. The biggest levers are a recognisable billing descriptor, fast refunds for customers who ask, clear expectations at checkout, blockingcard testing, and pre-dispute alerts and RDR. The full list is in our chargeback prevention playbook, andwhat is a good chargeback ratio covers the benchmarks in more depth.

Frequently asked questions

How do you calculate a chargeback ratio?
Divide the number of chargebacks you received in a month by the number of card transactions in the same period, then multiply by 100. 18 chargebacks on 4,000 transactions is a 0.45% chargeback ratio. Mastercard divides this month’s chargebacks by the previous month’s transactions, and Visa’s VAMP adds fraud reports (TC40s) to the dispute count.
What is a good chargeback ratio?
Below 0.5% is healthy. Between 0.5% and 0.9% acquirers start paying attention. Visa’s VAMP excessive threshold is 1.5% (combined fraud and disputes) in most regions as of 2026, and Mastercard’s Excessive Chargeback Merchant program starts at 1.5% with at least 100 chargebacks in a month.
Do won chargebacks still count toward my ratio?
Yes. Monitoring programs count disputes when they are filed, not when they are lost, so winning representment recovers the money but doesn’t lower the ratio. Only prevention (fewer disputes in the first place, or deflecting them before they become chargebacks) moves the number.
Is the chargeback ratio calculated by count or by dollar amount?
Card network programs use transaction count. Some acquirers and risk teams also watch the ratio by dollar volume (disputed dollars over sales), which is why this calculator shows both when you enter amounts.
What is the VAMP ratio?
The Visa Acquirer Monitoring Program ratio is (fraud reports + non-fraud disputes) ÷ settled card-not-present transactions for the month, by count. Visa applies a minimum monthly count before a merchant is identified as excessive, so very small merchants can have a high ratio without being enrolled. Confirm your exact threshold with your acquirer.

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