A chargeback ratio above 1.5% will trigger severe penalties and potential account termination under Visa's new 2026 VAMP thresholds. For health and wellness merchants, crossing this line often results in frozen funds, placement on the MATCH list, and the sudden loss of payment processing capabilities.
Operators in the peptide, telehealth, and med spa spaces operate in a high-scrutiny environment. Standard processors have little tolerance for disputes in these verticals. When a clinic's chargeback ratio spikes, the processor rarely asks for an explanation. They simply terminate the account to protect their own portfolio.
Understanding exactly how the card networks calculate your ratio, what the new 2026 thresholds are, and how to stay below them is the only way to protect your revenue.
How Your Chargeback Ratio Is Actually Calculated
Your chargeback ratio is a simple calculation: the total number of chargebacks received in a month divided by your total transaction count. If you process 10,000 transactions and receive 50 chargebacks, your ratio is 0.5%.[1]
However, Visa and Mastercard calculate this metric differently, which means you can be compliant with one network while violating the rules of the other.
Visa calculates your ratio using the current month's data for both chargebacks and transactions. If you receive a chargeback in April, it is divided by your total April transaction volume. Mastercard, conversely, divides your current month's chargebacks by the previous month's transaction count. If you experience a sudden drop in sales volume from one month to the next, your Mastercard ratio will artificially inflate even if your dispute count remains flat.[2]
The Double-Counting Trap
The most dangerous aspect of the calculation involves fraud reports. When a cardholder reports a transaction as fraudulent, the issuing bank generates a TC40 fraud report. If that same transaction later becomes a formal dispute, it generates a TC15 chargeback report. Under Visa's current rules, both the TC40 and the TC15 count against your ratio. A single fraudulent transaction can penalize your business twice.[1]
Visa uses the current month's transaction count in the denominator. Mastercard uses the prior month's transaction count. A sudden drop in monthly sales volume can cause your Mastercard ratio to spike even if your dispute count stays flat.
The 2026 Visa VAMP Thresholds
On April 1, 2025, Visa consolidated its fraud and dispute monitoring programs into a single framework called the Visa Acquirer Monitoring Program (VAMP). On April 1, 2026, Visa tightened the rules significantly.[3][9]
The "Excessive" threshold for merchants in North America, the EU, and Asia-Pacific dropped from 2.2% to 1.5%. To breach this threshold, a merchant must hit the 1.5% ratio and receive a minimum of 1,500 combined fraud and dispute reports in a single month.[3]
When a merchant breaches the Excessive threshold, Visa assesses a fine of $8 for every fraudulent or disputed transaction. There is no grace period. If a single transaction generates both a fraud report and a chargeback, the fine is $16. These fines apply to every dispute in the non-compliant month, not just the disputes that pushed the ratio over the limit.[9]
| VAMP Threshold | Ratio | Minimum Monthly Count | Fine Per Transaction |
|---|---|---|---|
| Excessive (through March 2026) | 2.2% | 1,500 combined TC40 + TC15 | $8 |
| Excessive (effective April 1, 2026) | 1.5% | 1,500 combined TC40 + TC15 | $8 |
| Acquirer Above Standard | 0.5%–0.69% | N/A | Portfolio review |
| Acquirer Excessive | 0.7%+ | N/A | Acquirer fines apply |
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Merchants below 1,500 disputes per month technically won't be enrolled in VAMP automatically. But acquirers monitor ratios regardless of volume and can terminate accounts before any official threshold is breached.
The Mastercard ECM Program
Mastercard monitors merchants through its Excessive Chargeback Merchant (ECM) program. A merchant is placed in the ECM program if they receive 100 or more chargebacks in a month and maintain a ratio of 1.5% or higher for two consecutive months.[4]
If the ratio exceeds 3% with 300 or more chargebacks, the merchant is escalated to the High Excessive Chargeback Merchant (HECM) program.[5]
The financial penalties for the ECM program compound rapidly. While the first month carries no fine, the second month incurs a $1,000 penalty. By months four through six, the fine escalates to $5,000 per month, plus issuer recovery assessments. If a merchant remains non-compliant for 19 months, the monthly fine reaches $100,000.[4]
| Months in Program | ECM Fine (1.5%–2.99%) | HECM Fine (3%+) | Issuer Recovery |
|---|---|---|---|
| Month 1 | $0 | $0 | No |
| Month 2 | $1,000 | $1,000 | No |
| Month 3 | $1,000 | $2,000 | No |
| Months 4–6 | $5,000 | $10,000 | Yes |
| Months 7–11 | $25,000 | $50,000 | Yes |
| Months 12–18 | $50,000 | $100,000 | Yes |
| Month 19+ | $100,000 | $200,000 | Yes |
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Why Health and Wellness Merchants Hit Thresholds Faster
The average chargeback rate across all industries is roughly 0.6%.[7] In the health and wellness sector, the average sits at 0.86%,[7] placing these merchants dangerously close to the 1.0% internal threshold enforced by many standard processors.
Several factors drive this elevated dispute rate. Subscription billing confusion is the most common: patients often forget they signed up for recurring shipments of supplements or peptide therapies and dispute the charge when it appears on their statement. Unclear billing descriptors compound this problem. If a clinic uses a holding company name or an abbreviated descriptor, the patient may not recognize the charge and will report it as fraud.
Product efficacy disputes are unique to this vertical. In the wellness space, patients who do not achieve their desired physical results sometimes file chargebacks rather than requesting a formal refund. Finally, regulatory headlines create anxiety. When the FDA issues enforcement letters or news breaks regarding compounding regulations, some patients preemptively dispute recent purchases.
The MATCH List and Account Termination
While Visa and Mastercard set the official thresholds at 1.5%, acquiring banks and payment processors enforce their own, stricter limits. Under VAMP, acquirers face severe penalties if their entire portfolio average exceeds 0.7%. To protect themselves, standard processors frequently terminate individual merchant accounts when ratios approach 1.0%.
When a processor terminates an account for excessive chargebacks, they are required to add the business to the Mastercard Alert to Control High-Risk Merchants (MATCH) list within one business day.[6] Also known as the Terminated Merchant File (TMF), the MATCH list is a global blacklist shared across the payments industry.
Entries on the MATCH list remain active for five years. Once a clinic or telehealth platform is placed on this list, securing a new merchant account becomes exceptionally difficult, effectively halting operations.[6][8]
Industry best practices suggest keeping your chargeback ratio below 0.5%. The official card network thresholds are set at 1.5%, but most standard processors will terminate accounts that consistently approach 1.0% to protect their own VAMP portfolio compliance.
Infrastructure Built for Operators
Operators in the health and wellness space require infrastructure built for their specific risk profile. Standard processors rely on algorithmic underwriting that pools high-risk merchants together, meaning one clinic's chargeback spike can trigger a portfolio-wide purge.
We provide USA-based merchant accounts with direct BIN access. By underwriting each merchant's specific vertical rather than applying broad risk categories, we structure accounts to reflect actual business risk. We utilize true MCC coding and domestic onshore acquiring, which means your business is evaluated on its actual performance, not the algorithmic assumptions of a standard aggregator.
Frequently Asked Questions
Industry best practices suggest keeping your chargeback ratio below 0.5%. While card networks set their excessive thresholds at 1.5%, many standard processors will terminate accounts that consistently hover around 1.0% to protect their own portfolio averages.
A merchant remains on the MATCH list for five years from the date they are added. During this time, it is extremely difficult to secure payment processing from any standard provider.
Yes. If you issue a refund before the cardholder contacts their bank to dispute the charge, a chargeback cannot be filed. This is why clear, accessible refund policies are critical for high-risk merchants.
A TC40 is a report generated when a cardholder claims a transaction is fraudulent. A TC15 is a formal chargeback filed for non-fraud reasons, such as "item not received." Under Visa's VAMP rules, both count toward your overall dispute ratio.
Yes. If you breach the Visa VAMP or Mastercard ECM thresholds, the card networks assess monthly fines. Visa charges $8 per disputed transaction, while Mastercard's fines escalate from $1,000 to $100,000 per month depending on how long you remain non-compliant.
Standard processors use automated risk models. If your chargeback ratio spikes, their algorithms often freeze funds and terminate the account immediately to prevent further liability, rather than reviewing your specific business practices.