What Is Visa VAMP? Ratio, Regional Thresholds, Exclusions

Visa’s Acquirer Monitoring Program, or VAMP, combines defined fraud reports and disputes into monitoring measures for participating acquirers and merchants. Its ratio and threshold depend on the specified events, region, count conditions, and reporting period. Effective April 1, 2025, the evolved VAMP consolidates five existing fraud and dispute programs into a single acquirer program, according to Visa’s own program overview.

It streamlines 38 distinct remediation processes into one. Merchants and acquirers that Visa places in an "Above Standard" or "Excessive" status face fees, reserves, and termination risk under their acquirer agreements. VAMP Visa rules and Mastercard rules are separate programs, so the figures below are not Mastercard thresholds. Mastercard runs a similar program for merchants with excessive chargebacks, called the Excessive Chargeback Merchant program, and a separate merchant audit program, the Mastercard GMAP, which reviews merchant risk controls directly rather than tracking chargeback ratios.

Key Takeaways

• VAMP replaced VDMP and VFMP: effective April 1, 2025.
• Thresholds depend on region and counts: the 1.5% merchant ratio applies with at least 1,500 counted fraud and dispute events in Asia Pacific, Canada, Europe, the US, and Latin America and the Caribbean. CEMEA uses 2.2% with at least 150 events and USD 75,000.
• Acquirer status matters: Visa’s fact sheet shows the merchant criteria for cases where the acquirer is not Above Standard or Excessive.
• Exclusions exist: qualifying pre-dispute resolutions and CE 3.0 fraud can be excluded, subject to timing.
• Prevention beats reaction: cutting fraud and disputes before they are counted keeps your VAMP ratio lower.

Chargebacks and fraud reports now affect whether a merchant can keep processing Visa transactions. Weak ecommerce fraud prevention raises the number of events that VAMP counts, and recent chargeback statistics and trends show why card networks keep tightening monitoring.

What is Visa VAMP? This guide explains how the ratio is calculated, which thresholds apply by region, which events are excluded, and how to lower your exposure. Confirm your own status in the notice from your acquirer.

What Is the Visa Acquirer Monitoring Program (VAMP)?

VAMP is Visa’s unified system for tracking fraud and disputes. Merchant risk is assessed through the acquirer relationship.

Visa formerly ran VDMP for chargebacks and VFMP for fraud. Effective April 1, 2025, both were consolidated into a single enhanced framework under VAMP.

The "A" in VAMP matters. Acquirers are front and center, and Visa’s emphasis on acquirers was not present in either earlier program. Even a merchant with few chargebacks can be affected if its acquirer’s portfolio is under pressure.

If you run multiple stores or processors, you need a single view of your dispute and fraud activity as part of a broader chargeback management strategy. Chargeflow Insights brings chargebacks from several processors into one place so you can spot trouble early.

How Does the VAMP Ratio Work?

The VAMP ratio is Visa’s measure of fraud reports and disputes against settled transactions. A separate ratio is calculated for enumeration. Merchants can calculate their chargeback ratio for internal tracking, but an internal dashboard can use a different numerator or denominator than Visa’s VAMP measure.

The metric folds in fraud reporting alongside disputes. A single fraudulent transaction may generate both a TC40 (fraud report) and a TC15 (dispute), and in some cases both count. This double counting explains higher-than-expected ratios.

The VAMP ratio formula is: (applicable TC40 fraud reports plus applicable TC15 disputes) divided by settled transactions (TC05). It covers domestic and cross-border card-not-present activity on VisaNet.

Exclusions: qualifying pre-dispute resolutions and CE 3.0 fraud are excluded, subject to extract timing. Do not deduct every refund from the numerator, and do not treat every fraud report as confirmed customer abuse; a claim alone does not establish intent, as the guide to friendly fraud explains.

Illustrative example (not a real merchant): 60 counted TC40 fraud reports plus 40 counted TC15 disputes over 10,000 in-scope TC05 settled transactions produce 100 / 10,000 × 100 = 1%. This demonstrates the ratio only. It does not by itself establish program status, because regional count, amount, and other applicable conditions still need checking.

Read the Applicable Merchant Threshold With Its Count Conditions

These are the Visa acquirer monitoring program 2026 thresholds for merchants, also called Visa VAMP thresholds, as shown in Visa’s VAMP fact sheet, which presents the Excessive Merchant criteria when the acquirer is not Above Standard or Excessive. It also notes separately announced programs for Brazil, Chile, and India. Confirm the applicable acquirer notice rather than infer status from a single percentage.

VAMP 2026 Merchant Thresholds by Region:

The 1,500 minimum counts fraud and dispute events, not 1,500 settled sales or transactions.

Acquirer Criteria Are Separate From Merchant Criteria:

These acquirer figures are not the complete set of acquirer criteria, and Above Standard is not a merchant tier. Check the Visa fact sheet for the full conditions. Because the merchant table applies when the acquirer is not Above Standard or Excessive, an acquirer under pressure may tighten terms, raise reserves, or offboard merchants that add to its numbers.

Compare your own numbers with the chargeback threshold limits that apply to your processor and region.

What Happens If You Exceed VAMP Thresholds?

Crossing a threshold can lead to Visa fees, scrutiny, and possible loss of Visa processing. Enforcement for the Excessive level began on October 1, 2025, and Visa announced a stricter Above Standard level for acquirers from January 1, 2026. The April 1, 2026 merchant threshold change described above is now in effect.

This article does not state a per-dispute VAMP fee. Fees, reserves, and remediation steps depend on the status Visa assigns and on your acquirer agreement, and any amounts add to your overall chargeback fees and costs. Ask your acquirer for the current notice.

The downstream consequences can include:

• Enforcement fees: Above Standard and Excessive designations can trigger Visa fees.
• Loss of processing: continued non-compliance risks penalties and account termination under your acquirer agreement.
• Acquirer pressure: acquirers may act quickly if you worsen their numbers. If processing ends, the alternatives often include high risk payment processors, which come with their own terms.

VAMP Enforcement Timeline:

Do not wait for a warning letter. Chargeback Alerts aggregates Verifi, Ethoca, Visa, Mastercard, and the Chargeflow Network so brewing disputes can be refunded before they post as chargebacks. You set the target threshold and monitor it against your VAMP ratio.

How Do You Stay Below VAMP Thresholds and Out of Monitoring Programs?

Staying below the applicable threshold combines prevention, inquiry resolution, and recovery. Because VAMP counts both TC40 fraud reports and TC15 disputes, you have to work on both as part of a layered chargeback mitigation approach: stop fraud at checkout and deflect or win disputes after the fact.

That means monitoring TC40 and TC15 events, using Verifi and Ethoca tools, and answering Visa disputes through Visa Resolve Online when a case needs a response. Track VAMP metrics by processor.

Many merchants also prune risk at the source. They look for spikes in products, regions, or shipping issues, and tighten billing descriptors, receipts, and refund policies.

A practical playbook:

1. Block fraud at checkout: Chargeflow Prevent scores transactions to stop fraud that would otherwise become TC40 reports.
2. Resolve disputes early: InquiryAutomation uses AI to resolve pre-dispute inquiries across PayPal, Klarna, Afterpay, and eBay.
3. Deflect with Alerts: Alerts catches brewing disputes before they become chargebacks.
4. Recover what posts: Chargeflow Automation detects chargebacks, builds compelling evidence from your chargeback evidence sources, and submits the case, so Chargeflow Automation is the single owner of case submission and your team reviews outcomes instead of filing a parallel response.
5. Monitor continuously: track ratio, win rate, and disputes by processor in one dashboard.

The goal is to stay well below the line that applies to you, not to sit just under it. Each payment service provider may set different internal expectations.

Fraud vectors keep evolving. As shoppers delegate purchases to AI shopping agents, AI agent chargeback liability questions and agentic commerce chargebacks are becoming part of the same monitoring conversation.

Prevention and automation lower the number of counted events, but they do not remove the need to check your acquirer notice.

Chargeflow’s VAMP Compliance Solution

Chargeflow combines prevention, deflection, and dispute handling to reduce the fraud reports and disputes that feed your VAMP ratio.

• Prevent fraud before it counts against you: Chargeflow Prevent scores transactions in real time, aiming to stop the TC40 reports that inflate your VAMP ratio.
• Deflect disputes before they post: Chargeflow Alerts catches brewing disputes through Verifi, Ethoca, and the Chargeflow Network and refunds them before they count as chargebacks.
• Resolve inquiries automatically: InquiryAutomation uses AI to close pre-dispute inquiries across PayPal, Klarna, Afterpay, and eBay.
• Recover what still slips through: Chargeflow Automation builds compelling evidence and submits the disputes that do post.
• Track your ratio: Chargeflow Insights unifies dispute and fraud data across processors and acquirers, so you can see a rising ratio before Visa notifies your acquirer.

Frequently Asked Questions

Is VAMP the same as a merchant’s ordinary chargeback rate?

No. VAMP uses specifically defined Visa fraud and dispute events and transaction scope. An operational dispute-rate dashboard can use a different numerator or denominator.

Does the 1.5% VAMP threshold apply to every merchant globally?

No. Geography, event-count conditions, amount conditions, and effective dates matter. Use the applicable Visa criteria and acquirer notice, including CEMEA’s separate conditions.

How VAMP Differs from VDMP and VFMP

VAMP merges two legacy programs into one metric. Visa formerly had VDMP focusing on chargeback ratios and VFMP covering fraudulent transactions.

VAMP vs. VDMP vs. VFMP:

The bigger shift is structural. The evolved VAMP consolidates five existing fraud and dispute programs into a single acquirer program and streamlines 38 distinct remediation processes into one.

What is the VAMP ratio threshold for merchants?

In Asia Pacific, Canada, Europe, the US, and Latin America and the Caribbean, the Excessive merchant ratio is at least 1.5% (150 basis points) with at least 1,500 counted fraud and dispute events. CEMEA uses 2.2% with at least 150 events and USD 75,000. The enumeration ratio applies at 20% or more with at least 300,000 enumerated authorization attempts. Aim well below the line that applies to you.

Is there a VAMP fee per dispute?

Fees depend on the status Visa assigns and on your acquirer agreement. Earlier versions of this article cited roughly $8 per dispute, but Visa’s fact sheet does not substantiate a single figure, so none is stated here. Ask your acquirer for the current notice.

How do I check my VAMP status on Stripe, Shopify, or another processor?

Ask the processor or acquirer for the notice that applies to your account, including your region, the counted events, and whether the acquirer is Above Standard or Excessive. Do not infer status from the 1.5% figure alone.

Can low chargeback ratios still trigger VAMP penalties?

An acquirer’s portfolio can affect you. Even if you are below the merchant threshold, your dispute activity can add to your acquirer’s numbers, which may lead to higher reserves, stricter terms, or offboarding.

When did VAMP enforcement begin?

Enforcement for the Excessive level began on October 1, 2025. Visa announced a stricter Above Standard level for acquirers beginning January 1, 2026.

How do you reduce your VAMP ratio?

Lower your VAMP ratio by cutting fraud at checkout, resolving disputes before they post, and monitoring TC40 and TC15 activity by processor. Tightening billing descriptors and refund policies and using real-time alert tools can also reduce counted events.

Staying VAMP-Compliant in 2026

Visa VAMP turned fraud reports and disputes into a monitored ratio with regional thresholds and count conditions. Check the criteria for your region and the notice from your acquirer.

Stop fraud at checkout, deflect disputes before they post, and recover the rest. Chargeflow Automation handles case submission for the disputes that remain, which keeps your VAMP ratio lower.