Visa Acquirer Monitoring Program (VAMP) 2026: Merchant Education, Best Practices, and Tools
By Luqra
Visa’s Acquirer Monitoring Program (VAMP) consolidates multiple legacy fraud and dispute programs into a single, acquirer-centric framework for monitoring fraud, disputes, and enumeration attacks. This whitepaper from Luqra’s Chief Risk Officer, Jacob Bennett, focuses on what changes in 2026 and how merchants and acquirers can prepare. It explains the core VAMP ratio, combining TC40 fraud reports and TC15 disputes over settled transactions and notes that the merchant excessive threshold is scheduled to tighten from 2.2% to 1.5% in key regions as of April 1, 2026, alongside ongoing enumeration triggers. The paper reviews key enforcement dates, emphasizes merchant education on VAMP mechanics, and outlines best practices for reducing fraud and disputes, improving pre-dispute engagement, and monitoring performance. It also highlights Visa-native tools and acquirer reporting capabilities that can help merchants stay within thresholds and avoid program penalties.
What You'll Learn
- How VAMP consolidates prior Visa fraud and dispute programs into a single acquirer-focused framework.
- What the core VAMP ratio measures and how planned 2026 threshold changes affect merchants.
- Best practices for educating merchants and using Visa tools and reporting to manage fraud and dispute performance.
Who's This For?
- Acquirers, processors, and risk teams managing VAMP exposure
- Card-not-present merchants concerned about fraud and dispute ratios