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Monitoring & Remediation

TL;DR
  • Watch at 0.65%, act at 0.75%, panic at 0.9% (Visa)
  • Mastercard: both count AND ratio must be met (ECM is 100-299 chargebacks AND 1.50-2.99%; HECM is 300+ AND 3.00%+)
  • Exit requires: 3 consecutive months below thresholds + remediation plan
  • Termination risk: 12+ months in program without improvement
  • This page covers how to monitor and respond. For exact thresholds, fees, and timelines, see Network Programs Reference.

This page teaches you how to monitor your dispute ratios and what to do when they're trending in the wrong direction. For the complete threshold tables, fee schedules, and month-by-month escalation timelines, see Network Programs Reference.

What Happens at Different Ratios (SMB Quick Reference)​

Your RatioWhat's HappeningWhat to Do
Under 0.5%HealthyMonitor monthly. No action needed.
0.5-0.65%Early warning zoneYour processor may send a heads-up email. Start free prevention fixes.
0.65-0.75%Processor warning likelyActive remediation needed. Fix descriptor + enable 3DS + consider alerts.
0.75-0.9%Danger zoneYou have weeks to fix this. See reduce chargebacks fast.
0.9%+CrisisProcessor action likely: reserves, pass-through fees, or termination. No network program starts here (VAMP and ECM both start at 1.5%), but your processor's own limit is the one that ends the account. See 0.9% panic guide.
Low-Volume Warning

For SMBs under $50K/month: a single bad month can spike your ratio because your transaction count is low. 5 chargebacks on 1,000 transactions = 0.5%. Use a 90-day rolling average, not a single month, to gauge your actual risk level.

Programs at a Glance​

NetworkProgramKey TriggerDetails
VisaVAMP (replaced VDMP + VFMP, April 2025)1.5% merchant excessive (2.2% in CEMEA) + 1,500 combined fraud reports + disputesFull thresholds
MastercardECP (ECM/HECM tiers)ECM: 100-299 chargebacks AND 1.50-2.99%. HECM: 300+ AND 3.00%+Full thresholds
AmexInternal monitoringNo published number. Amex acts when your volume is "considered disproportionate"Details
DiscoverInternal monitoringNo published number. "Excessive returns or Disputes, as determined by us in our sole discretion"Details

All programs require 3 consecutive months below thresholds to exit.

Calculating Your Rates​

Chargeback Ratio​

Chargeback Ratio = (Chargebacks in Month) / (Transactions in Month) x 100

Example:
150 chargebacks / 10,000 transactions = 1.5% ratio

Important Notes​

  • Transaction counts matter. Low-volume merchants can hit ratio thresholds quickly.
  • Both metrics. Many programs require both ratio AND count thresholds.
  • Month matters. Visa uses current month; Mastercard uses prior month's transactions as denominator.

Warning Signs​

Leading Indicators​

Monitor these to catch problems early:

IndicatorWarning LevelAction Level
Chargeback ratio0.65%0.75%
Fraud ratio0.35%0.50%
Dispute trend+20% MoM+50% MoM
Customer complaintsIncreasingSpiking

One number in that table is real. 0.50% fraud-to-sales is Mastercard's EFM line, and it's the only fraud figure any network attaches to a program. The 0.35% above it isn't a network number. It's just far enough below 0.50% to leave you a month to react. The chargeback rows aren't network numbers either. 0.65% and 0.75% are house levels, set below the 0.9% where processors typically act.

Watch for advice that puts a fraud action level at 0.7% and a red flag at 0.65%. Both sit above the only threshold that actually exists, so a merchant following them is already past Mastercard's line before either one fires.

Red Flags​

  • Chargeback ratio approaching 0.75%
  • Fraud ratio approaching 0.50%, the Mastercard EFM line
  • Month-over-month increases
  • New fraud patterns emerging
  • Customer service complaints spiking

Remediation Requirements​

When a network puts you in a monitoring program, they want to see a plan within 15 days.

What Networks Want to See​

  1. Root cause analysis - Why are chargebacks occurring?
  2. Remediation plan - Specific actions with timelines
  3. Progress reporting - Regular updates
  4. Evidence of improvement - Declining metrics
  5. Compliance commitment - Ongoing monitoring

Typical Remediation Actions​

AreaActions
Fraud Prevention3DS implementation, enhanced scoring, velocity rules
Customer ExperienceClear descriptors, easy cancellation, better support
OperationsFaster refunds, delivery confirmation, dispute response
PoliciesClear terms, visible disclosures, proper consent

Prevention Strategies​

Immediate Actions​

  1. Enable fraud tools - 3DS, AVS, CVV
  2. Review refund policies - Make refunds easier
  3. Improve response time - Customer service SLAs
  4. Implement alerts - Ethoca, Verifi for pre-disputes

Long-term Solutions​

  1. Improve descriptors - Clear merchant names
  2. Order confirmations - Email with charge preview
  3. Delivery confirmation - Tracking and signature
  4. Review sales practices - No aggressive tactics
  5. Train customer service - Dispute prevention focus

Alert Services​

ServiceFunction
Verifi CDRNPre-dispute alerts for Visa
EthocaPre-dispute alerts for Mastercard
RDR (Rapid Dispute Resolution)Auto-resolve disputes

For how alerts affect program ratios, see Prevention Tool Impact.

Next Steps​

Checking your program status?

  1. Review threshold tables - Know exactly where the lines are
  2. Watch warning signs - Act before breach
  3. Calculate your ratio - Chargebacks / transactions

Already in a program?

  1. Follow remediation requirements - What networks want
  2. Implement prevention strategies - Get below thresholds
  3. Review fee escalation timelines - Understand urgency

Preventing program entry?

  1. Monitor leading indicators - Early warning metrics
  2. Enable alert services - Ethoca, Verifi
  3. Review prevention strategies - Reduce disputes proactively

See Also​

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