41 DAYS UNTIL VAMP FINES BEGIN
October 1, 2025 • $10 per dispute penalty starts • Are you ready?
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🚨 URGENT: Updated August 2025

VAMP 2025 Complete Guide

Everything merchants need to know about the Visa Acquirer Monitoring Program: thresholds, penalties, compliance strategies, and emergency procedures.

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Program Citations: VAMP pp. 67, 79–83 • Visa Rules for Visa Merchants • Updated August 2025

What is VAMP (Visa Acquirer Monitoring Program)?

VAMP monitors acquirers and merchants for excessive disputes and fraud. The program calculates ratios using a common formula: (fraud reports + disputes) ÷ settled transactions.

When merchants cross network thresholds, acquirers face penalties ranging from warnings to hefty monthly fines. This cascades down to merchant accounts through reserves, terminations, or increased fees.

🚨 October 2025 Changes

Starting October 1, 2025, Visa begins charging acquirers $10 per dispute for merchants in VAMP monitoring status. This represents a significant escalation in penalty severity, making prevention more critical than ever.

How to Calculate Your VAMP Ratio

Step 1: Data Collection

  • • Monthly settled transactions (TC05)
  • • Disputes received (chargebacks)
  • • Fraud alerts (TC40/SAFE reports)
  • • Time period: trailing 12 months

Step 2: Calculation

VAMP Ratio =
(Disputes + Fraud Alerts)
÷ Settled Transactions
× 100 = X%

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VAMP Thresholds & Penalties (2025)

ThresholdStatusPenalty (Oct 2025+)Merchant Impact
< 0.65%SafeNoneNormal operations
0.65-1.0%WarningMonitoringEnhanced scrutiny
≥ 1.0%Breach$10/disputeReserves, termination risk

Financial Impact Examples

100 disputes/month:
$1,000/month in fines
500 disputes/month:
$5,000/month in fines
1,000 disputes/month:
$10,000/month in fines

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Legal Notice: This guide provides educational information based on published VAMP program rules. MerchantGuard is not a PSP, acquirer, or law firm. Consult qualified professionals for specific compliance advice.

Last Updated: August 21, 2025 • Program Citations: Visa Rules for Visa Merchants, VAMP sections 67, 79-83