Visa's threshold is 0.9%, Mastercard's is 1.0%. Once you enter a monitoring program (VAMP for Visa, MATCH for Mastercard), you're subject to monthly fines and on a clock to remediate. Processor termination follows if you don't. The time to act is before you cross the threshold, not after.
Why chargebacks happen and why most merchants don't catch them early
Chargebacks are a normal part of card processing. A small number is expected. The problem is when the rate becomes a pattern, and most merchants don't have the monitoring in place to see the trend before it becomes a threshold violation.
Common causes we see across merchants:
- Unclear billing descriptors (customers don't recognize the charge)
- Subscription or continuity billing without strong customer authorization records
- Fulfillment delays creating "item not received" disputes
- Refund policy friction that pushes customers toward chargebacks instead
- Fraud-triggered chargebacks that look like legitimate disputes
- Missing or insufficient evidence in dispute responses
The Cambridge approach to chargeback reduction
Ratio monitoring
We track your chargeback ratio month over month and alert you when trends are moving in the wrong direction. You shouldn't find out you're at risk from your processor; you should find out from us first.
Dispute strategy
We build the right response strategy for each dispute category. Fraud chargebacks, "item not received," "subscription not cancelled," and "not as described" each require different evidence and approaches.
Compelling Evidence 3.0
CE 3.0 is Visa's framework for shifting liability on friendly fraud disputes. When applied correctly, it can turn previously unwinnable disputes into wins. We implement CE 3.0 for merchants who qualify.
Prevention at the source
The most effective chargeback reduction happens before the dispute is filed. We review your billing descriptors, customer communication sequences, and refund processes to close the gaps that drive disputes.
Chargeback alerts
Alert services like Ethoca and Verifi notify you before a chargeback is formally filed, giving you the opportunity to issue a refund and stop the dispute before it counts against your ratio.
Remediation planning
If you're already in a monitoring program, we build the remediation plan your processor needs to see: documented root cause analysis, corrective actions, and a timeline for ratio reduction.
What Compelling Evidence 3.0 means for your disputes
CE 3.0 is a Visa dispute resolution framework that allows merchants to shift liability on "fraud" chargebacks to the card issuer when they can demonstrate a prior undisputed transaction from the same customer, device, and delivery information.
In practice, this means that for merchants with recurring billing or repeat customers, a category of previously unwinnable "friendly fraud" disputes can now be contested successfully. The catch: the evidence requirements are specific, the documentation has to be in place before the dispute occurs, and not every processor makes this straightforward to execute.
CambridgeCommerce helps merchants who qualify build the systems to capture and store CE 3.0-eligible evidence as part of normal transaction flow, so it's ready when disputes arise.
"We were at 1.4% and didn't know it until our processor sent us a warning letter. Cambridge came in, built a dispute response system, implemented CE 3.0, and got us below 0.6% within 90 days. I didn't know that was even possible that fast."Direct response merchant, nutraceuticals Ratio reduced from 1.4% to 0.6% in 90 days