Learn the domain· 7 min read

Fees & monitoring programs

A chargeback costs more than the disputed amount. Stack up the chargeback fee, scheme-level escalation fees, and the network monitoring programs that fine high-ratio merchants per transaction, and the economics shift fast — by the time a merchant lands in Visa's Excessive bucket every dispute costs them an extra $8 on top of the lost sale.

Last reviewed against primary sources on .

Per-case fees

Each dispute carries its own fees, layered as it moves through the lifecycle:

StageTypical feeSet byNotes
Initial chargeback$15–$25 typical (US)Acquirer / processorPer case, regardless of outcome. High-risk MCC categories pay considerably more (some industries see $40–$100+).
Mastercard pre-arbitration filing~$15MastercardPaid by whichever side files. Small filter that prevents frivolous escalations.
Visa arbitration filing$600VisaUp from $500 since 1 April 2025. Paid by losing party in addition to the disputed amount.
Mastercard arbitration filing$400MastercardPaid by losing party.
Visa arbitration appeal$1,000VisaRare; only for genuinely exceptional cases (precedent- setting or large-dollar).

Visa Acquirer Monitoring Program (VAMP)

VAMP went live on 1 April 2025, replacing the legacy Visa Dispute Monitoring Program (VDMP) and Visa Fraud Monitoring Program (VFMP). It collapses fraud reports (TC40) and settled disputes (TC15) into a single ratio:

VAMP ratio = (count of TC40 fraud reports + count of TC15 disputes) ÷ count of TC05 settled transactions

Two tiers, applied to the prior month's ratio:

TierAcquirer thresholdMerchant thresholdPer-incident fee
Above Standard0.5% ratio—$4 per fraud / dispute
Excessive0.7% ratio1.5% ratio (NA / EU / APAC, since 1 April 2026)$8 per fraud / dispute

Exclusion floor: merchants processing fewer than 1,500 combined fraud reports + disputes per month are excluded from formal VAMP monitoring. Acquirers routinely apply stricter internal limits well below that floor, especially for accounts in high-risk MCCs.

Mastercard Excessive Chargeback Program (ECP)

Mastercard's long-running merchant-monitoring program. Unlike VAMP, ECP looks only at chargebacks (not fraud reports), and requires both a count threshold and a ratio threshold to be exceeded:

TierCountRatioNotes
ECM — Excessive Chargeback Merchant≥100 chargebacks / month≥1.5%Two consecutive months over both thresholds triggers enrollment.
HECM — High Excessive Chargeback Merchant≥300 chargebacks / month≥3.0%Second tier with stiffer assessments and a faster path to termination.

Ratio is computed as chargebacks this month ÷ settled transactions last month. Both thresholds must be crossed for ECM enrollment, and three consecutive months below both is the only official path back out.

Mastercard runs a separate Excessive Fraud Merchant (EFM) program that targets CNP fraud rates specifically — merchants with high fraud counts and a CNP fraud-to-sales ratio above the program threshold get enrolled.

Why monitoring programs exist

Card networks have a strong interest in keeping the dispute machinery cheap to operate and the cardholder experience clean. A merchant with a 5% dispute ratio is consuming disproportionate rails capacity AND signalling that their fraud / fulfilment operation is structurally broken. The monitoring programs are deliberately punitive at the high tier: per-transaction fines turn a high-ratio merchant's economics negative, forcing them to either invest in prevention or leave.

A worked example

Imagine a $100 CNP transaction that ends up in a dispute on reason code 10.4, with the merchant enrolled in VAMP Excessive (ratio >1.5%):

  • $100Disputed transaction — debited from merchant.
  • $20Chargeback fee from acquirer.
  • $8VAMP Excessive per-incident assessment.
  • ~$3Acquirer-side internal risk add-on (typical; varies).
  • ~$131Total cost of one $100 chargeback at the Excessive tier.

And that's before the operational cost of building the representment packet. A win recovers the $100; the fees stay.

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