The landscape of payment processing has shifted dramatically in 2026. For e-commerce merchants, the stakes are no longer just about higher fees or rolling reserves. If your merchant account is closed for excessive VAMP (Visa Acquirer Monitoring Program) violations, Visa is now mandating that you be added to the TMF (Terminated Merchant File)—also known as the MATCH list.

This policy creates a "death sentence" for payment processing. Once you are on the TMF, acquiring banks will refuse to do business with you, effectively shutting down your ability to accept credit card payments.

According to global reliable data and the latest Visa mandates, here is exactly how the new VAMP thresholds work, why acquirers are shutting down accounts, and how to avoid being blacklisted.

The Mandate: VAMP + TMF = No Second Chances

Visa’s operating regulations have updated to include strict language regarding high-risk merchants. In the AP Region, Canada Region, CEMEA Region, Europe Region, LAC Region (except Chile), and the US Region, the rules are now uniform: An Acquirer must list the Merchant if terminated for excessive risk identified by the VAMP reports .

Historically, acquirers had discretion over whether to report a merchant to the MATCH list. Under the new VAMP regime, if you are shut down for hitting the "Excessive" thresholds, reporting is mandatory.

Understanding the New VAMP Thresholds (2026 Update)

To understand why Visa is forcing acquirers to place merchants on the TMF, you must understand the math behind the new VAMP Ratio.

As of April 1, 2026, Visa significantly tightened the screws. The "Excessive" threshold for merchants dropped from 2.2% to 1.5% .

• The Formula: (TC40 Fraud Reports + TC15 Disputes) / Total CNP Transactions.

• The Risk: Visa now counts fraud and non-fraud disputes together .

• The Double Count: A single transaction that is both fraudulent and disputed can count against your ratio twice .

If your ratio exceeds 1.5% and you have more than 1,500 fraud/dispute events per month, you are flagged as "Excessive." If your acquirer drops you for this reason, the TMF listing is automatic .

Why Acquirers Are Closing Accounts Immediately

Payment facilitators like Shopify Payments, Stripe, and traditional acquirers are terrified of the new acquirer-level thresholds. Visa requires acquirers to keep their entire portfolio below a 0.5% VAMP Ratio .

Because one bad merchant can ruin an acquirer’s aggregate ratio, processors are engaging in aggressive portfolio pruning. If you are flagged for enumeration (card testing) or high fraud, your account will be closed. And under the new Visa mandate for the US and AP regions, that closure triggers the TMF listing .

The "Enumeration" Danger Zone

Visa is specifically targeting Enumeration Attacks (card testing). If Visa identifies that your business has enumeration activity exceeding 20% of your authorization volume, you are considered Excessive .

Enumeration is a major red flag. Visa views this as gross negligence. If your merchant account is closed for enumeration-based VAMP violations, the mandate to add you to the TMF is ironclad.

How to Avoid the TMF List

With the threshold now at 1.5% and dropping in some regions, you cannot afford to rely on old-school chargeback representment. To survive the VAMP era and stay off the MATCH list, you must implement a three-part strategy:

1. Adopt Compelling Evidence 3.0

Rapid Dispute Resolution (RDR) is no longer enough to suppress fraud signals. Under the new rules, Compelling Evidence 3.0 submitted via Order Insight is the only way to remove TC40 fraud reports from your VAMP ratio .

2. Monitor the "Same-Month" Resolution Trap

Under VAMP, disputes must be resolved in the same calendar month they are filed. If a dispute comes in on the 30th and you resolve it on the 1st, it still counts against the previous month’s ratio. This creates a "cliff edge" for compliance .

3. Stop Friendly Fraud at the Source

Data shows that 75% of disputes are due to "friendly fraud" (customers forgetting they bought something). Optimize your billing descriptors and checkout experience to ensure customers recognize your charge. Reducing this by 10% could be the difference between a 1.4% ratio (compliant) and a 1.6% ratio (TMF trigger) .

Summary

Visa has closed the loophole. Excessive VAMP performance now carries the ultimate penalty: termination and TMF listing.

If you are a high-volume merchant, complacency is not an option. You must keep your combined fraud and dispute ratio strictly below 1.5%. Once you are on the MATCH list due to a VAMP violation, finding another payment processor is nearly impossible.