Mastercard Excessive Chargeback Program (ECP): 2026 Merchant Guide

Mastercard's chargeback monitoring programs flag merchant IDs whose disputes or fraud losses cross fixed monthly limits, then assess fines through your acquirer. There are two: the Excessive Chargeback Program (ECP), which watches overall chargeback count and ratio, and the Excessive Fraud Merchant (EFM) program, which watches fraud-coded chargebacks on card-not-present sales.

The stakes keep rising. Mastercard's chargeback cost research, conducted by Datos Insights and updated in June 2026, projects global chargeback costs rising from $36.9 billion in 2026 to $46.1 billion in 2029. Mastercard has also added a scam-merchant program, enforced since July 24, 2026, and a combined fraud-and-dispute framework due April 1, 2027, both covered below. For wider numbers, see our chargeback statistics guide.

{{cta}}

Understanding the Mastercard Chargeback Monitoring Program

Mastercard established the Acquirer Chargeback Monitoring Program (ACMP) under its Global Compliance Programs to track each merchant ID's monthly chargeback count and ratio. Merchants stay compliant by keeping their count or ratio below Mastercard's published chargeback thresholds, and Mastercard's stated aim is to preserve the integrity of the payment system. Both programs count chargebacks, the reversals a cardholder's bank files after a card payment; what is a chargeback covers the mechanics.

Mastercard's global compliance programs page lists four programs: Business Risk Assessment and Mitigation (BRAM), ECP, EFM and the Questionable Merchant Audit Program (QMAP). This guide covers ECP and EFM in depth, then the newer SMMP and GMAP rules.

Each program carries consequences for merchants and their payment service providers. If you also accept Visa, the equivalent is the Visa Acquirer Monitoring Program (VAMP), which counts fraud reports and disputes together and flags a merchant as Excessive at a 1.5% ratio (effective April 2026); Visa's chargeback dispute rules and time limits sit alongside it.

1) Excessive Chargeback Program (ECP)

Mastercard's Excessive Chargeback Program (ECP) is a regulatory instrument that monitors disputes based on a  Merchant Identification Number (MID). Mastercard calculates chargeback threshold using network-wide chargeback data from all transaction types, including card-present and card-not-present sales, to track chargebacks.

Mastercard monitors chargeback counts and the calculated basis points, then alerts the acquirer when any MID passes the compliance threshold. The acquirer forwards a notice to the merchant; chargeback threshold limits and monitoring notices shows what those look like.

ECP Formula

Mastercard determines a merchant's ECP basis point or chargeback rate using the formula below:

• Chargeback Rate: The number of chargebacks received in the current month divided by the total transactions processed in the previous month, multiplied by 100.
  1. ‍Example: 150 first presentment chargebacks in July ÷ 7,500 transactions in June x 100 = 2% Chargeback Rate.

• Chargeback Basis Point: First presentment chargebacks in a calendar month divided by the number of Mastercard transactions processed in the preceding month, multiplied by 10,000.
  1. ‍Example: 150 first presentment chargebacks in July ÷ 7,500 transactions in June x 10,000 = 200 Basis Points.

Why the prior month's sales matter: the denominator is last month's Mastercard sales, so a sales dip raises your ratio even when disputes stay flat. 130 chargebacks against 12,000 June sales is 1.08% and stays below the ECM line, but the same 130 chargebacks after a slow month of 8,000 sales is 1.63% (about 163 basis points) and crosses it, because the count is already above 100. Only first-presentment chargebacks count. According to J.P. Morgan's Mastercard ECM FAQ, represented chargebacks are not used to recalculate thresholds or assessments, so winning a dispute afterward does not lower the count.

Mastercard sets two levels of excessive chargeback severity from this formula:

a) Excessive Chargeback Merchant (ECM)

Excessive chargeback merchant flags merchants with 100-299 chargebacks and a chargeback-to-transaction ratio of 1.5%-2.99% (150-299 basis points).

Mastercard applies the ECM designation to merchants who stay over the threshold for two months, consecutive or not. A single month over the line may prompt monitoring by your acquirer, but carries no official status or fine.

b) High Excessive Chargeback Merchant (HECM)

A merchant is flagged as HECM at 300 or more chargebacks and a 3% or higher ratio in the same month, held for two months (consecutive or not). Acquirers notify merchants of their status and coordinate remediation, and HECM is the more serious tier because fines escalate twice as fast.

Mastercard Excessive Chargeback Program Enrollment Consequences

Breaching the ECP threshold brings financial and non-financial consequences:

• Monthly assessments: fines start in the second month and grow with each month enrolled (see the fine schedule below).
• Issuer Recovery Assessment: $5 per chargeback above 300 once enrollment reaches month 4.
• MID Flagging: Merchant ID marked for heightened scrutiny and reporting requirements.
• Acquirer Termination Risk: Banks often terminate excessive merchants.
• MATCH Listing Probability: High likelihood of industry-wide processing ban for high excessive merchants.

Mastercard Excessive Chargeback Program Extension Requests

Merchants facing ECM or HECM designation can ask their acquirer to request a six-month extension from Mastercard, which holds fine collection while you put chargeback reduction in place and keeps you processing.

The caveats:

• Your ECM or HECM status stays active, and fines keep accruing in the background for every month you exceed thresholds.
• Extensions pause fine assessment, not acquirer risk actions such as holds, reserves and volume caps.

At expiry Mastercard re-evaluates your performance. If you are back below the ECM threshold, the held fines are waived; if not, you owe the full accrued amount at once. For an ECM merchant whose extension covers enrollment months 7 to 12, that is $175,000 (5 x $25,000 + $50,000); for HECM in the same window it is $350,000 (5 x $50,000 + $100,000). Merchants that fail to reduce chargebacks during the extension face those lump sums.

Excessive Chargeback Merchant Program Remediation and Exit Strategy

Mastercard requires a comprehensive remediation plan from merchants that enter the chargeback monitoring programs. This document serves two vital purposes:

1) Demonstrating your compliance commitment

2) Determining how fines will be calculated

Below are the vital components of a Mastercard chargeback monitoring program remediation action plan:

• Business Overview: Clear explanation of your merchant operations and transaction profile.
• Root Cause Analysis: Detailed breakdown of what is driving your ratio, starting from a correct chargeback rate calculation and your reason-code mix.
• Improvement Timeline: Specific actions implemented with exact deployment dates.
• Technology Stack: Complete inventory of active fraud prevention and risk management tools for combating chargebacks.

Exiting ECM/HECM status requires sustained improvement: chargeback levels must stay below program thresholds for three consecutive months, and a single month spike resets your exit timeline.

Pro Tip Remediation Success: Strong remediation plans, such as installing chargeback alerts and dispute analytics, don't just help with compliance. They can influence Mastercard's fine assessment decisions and demonstrate a serious commitment to long-term chargeback reduction.

2) Excessive Fraud Merchant (EFM) Program

Mastercard's Excessive Fraud Merchant program is a specialized compliance initiative for card-not-present (CNP) transactions. Unlike broader chargeback monitoring, EFM monitors fraud-related chargebacks from eCommerce transactions at the merchant ID level to maintain Mastercard network integrity.

EFM Formula: Fraud Chargeback Basis Point

Mastercard divides the fraud-coded chargebacks received in a month by your Mastercard eCommerce transactions in the preceding month. Only reason codes 4837 (No Cardholder Authorization) and 4863 (Cardholder Does Not Recognize, potential fraud) count toward EFM, according to J.P. Morgan's EFM program guide and EFM FAQ.

Fraud basis points = fraud-related chargebacks in the month ÷ Mastercard eCommerce transactions in the preceding month x 10,000.

1. ‍Example: 25 July fraud claims ÷ 1,200 June sales count x 10,000 = 208 Fraud Chargeback Basis Point.

EFM Threshold Criteria

Regarding Excessive Fraud Merchant threshold, Mastercard's Security Rules and Procedures and the J.P. Morgan EFM guide say a merchant triggers EFM classification if they meet or exceed all four of the following criteria:

1. Number of eCommerce Transactions: At least 1,000 eCommerce transactions from the previous month in clearing.
2. Fraud Chargeback Amount: 50,000 U.S. dollars or higher in fraud-related chargebacks.
3. Fraud Chargeback Basis Points: At least 50 basis points in fraud-related chargebacks (or 0.5% fraud chargeback count to sales count ratio).
4. EMV 3-D Secure (3DS) Utilization: Merchant is located in a non-regulated country and the percentage of the merchant's clearing volume processed using 3DS is 10% or lower; or
   1. The merchant is located in a regulated country and the percentage of the merchant's clearing volume processed using 3DS is 50% or lower.

Pro Tip: the 3DS bar depends on where you operate: 10% in the US and Canada, where strong cardholder authentication is not legally required, and 50% in Europe and other regulated markets. 3DS and data-only transactions both count toward that share, so raising either keeps you out of EFM even when the other three criteria are met.

Excessive Fraud Merchant Consequences

Mastercard applies a non-performance assessment once a merchant ID has been identified as an EFM for two months, consecutive or not. EFM fines follow the escalation in the fine schedule below.

• Operational and Reputational Risk: EFM listing attracts increased scrutiny and restrictions from your acquirer as they also face financial penalties for failing to report or manage EFM issues.
• MATCH (Mastercard Alert to Control High-risk Merchants) Listing Risk: High probability of Terminated Merchant File placement.

Note: Unlike ECM, EFM has only one tier. If a merchant is identified as both an excessive chargeback merchant and an excessive fraud merchant in the same violation month, only the EFM violation will apply for that month.

EFM Extension Requests

Mastercard provides an option for acquirers to file a six-month extension option on behalf of their merchants, which suspends fine collection upon approval. Throughout this grace period, merchants remain subject to EFM program monitoring, with penalties continuing to accumulate monthly for threshold violations. The accumulated fines remain suspended until the extension is completed.

Upon extension expiration, Mastercard evaluates merchant performance against EFM thresholds. Merchants that have reduced their fraud ratio receive complete fine forgiveness for the entire extension period, while merchants still exceeding thresholds face immediate assessment of all accumulated penalties from the extension period.

Excessive Fraud Merchant Program Remediation and Exit Strategy

Mastercard requires merchants designated under the Excessive Fraud Merchant Program to submit a comprehensive remediation action plan. This strategic document shows your commitment to fraud reduction and could influence penalty assessments during the review process.

Below are the vital components of a Mastercard excessive fraud merchant program remediation action plan:

• Merchant Profile: Complete operational overview and transaction characteristics.
• Fraud Analysis: Detailed examination of factors contributing to elevated fraud rates.
• Mitigation Action Plan: A Comprehensive list of implemented fraud prevention measures with specific deployment timelines.
• Technology Infrastructure: A full inventory of active fraud detection and prevention systems.

Merchants must keep their fraud metric below program thresholds for three consecutive months before Mastercard closes the audit. If the same merchant ID is flagged again after closure, assessments restart at month 1.

That said, to facilitate exit and maintain EFM compliance:

• Implement robust fraud prevention, such as full 3DS authentication or data-only transactions (which share insights with issuers without full authentication).
• Monitor fraud metrics closely, as the program resets only after the three-month compliance period.
• Enroll in pre-chargeback alerts to refund high-risk transactions before they turn into fraud-related chargebacks.
• For MATCH listings related to EFM, there is no explicit remediation-based exit. However, listings expire after 5 years.

Excessive Chargeback Program vs Excessive Fraud Merchant

Mastercard designed both ECP and EFM to maintain network integrity by monitoring and penalizing merchants with high-risk activity. EFM specifically targets fraud in eCommerce environments, while ECP addresses overall chargeback volumes across all transaction types.

Side-by-side comparison, current as of October 2026:

Mastercard ECP and EFM Fine Schedule by Month

Assessments rise the longer a merchant ID stays enrolled. The schedule below is the one Mastercard publishes to acquirers, in US dollars, with running totals for a merchant that stays enrolled.

On top of these amounts, Mastercard's ECP guide adds an Issuer Recovery Assessment of $5 per chargeback above 300 once enrollment reaches month 4. Sources: Mastercard's ECP guide and EFM guide (December 2019, effective 2020) as distributed by J.P. Morgan Payments, and Braintree for the current ECP schedule. Running totals are the sum of the monthly figures and exclude the Issuer Recovery Assessment.

Proactive Strategies to Avoid ECP and EFM Enrollment

Prevention costs far less than remediation, as the fine schedule shows. The steps below, drawn from Mastercard's program guidance, target the causes of excessive chargebacks and fraud before thresholds are reached; chargeback mitigation covers the wider toolkit.

ECP Enrollment Prevention Framework

1. Analyze chargeback data, including chargeback reason codes, to uncover attack vectors. Leverage a third party solution, such as Chargeflow, to help address disputes before they turn into chargebacks.
2. Establish a strict authorization strategy, such as velocity monitoring and strong customer authentication (SCA) through Mastercard Identity Check, the 3DS program that replaced Mastercard SecureCode.
3. Implement an efficient risk detection tool with real-time monitoring and reporting functionalities.
4. Review your billing descriptor and consider adding a customer service phone number.
5. If the billing model is a subscription service, increase the frequency by which cardholders are notified of billing or change how you notify cardholders. Make it easy for cardholders to opt-out, downgrade, or cancel.

EFM Enrollment Prevention Framework

1. Implement an internal ecommerce fraud prevention tool or leverage a third-party solution that incorporates advanced detection capabilities.
2. Establish a strict authentication strategy, such as using 3DS/Mastercard Identity Check Program, to allow issuers or Mastercard to perform cardholder authentication.
3. Monitor and block suspicious login attempts to prevent account takeover of customer accounts.
4. Analyze chargeback data and fraudulent transaction cancellations to identify fraud attack loopholes.

SMMP and GMAP: Mastercard's Newer Monitoring Rules

Scam Merchant Monitoring Program (SMMP), enforced since July 24, 2026

Mastercard's Scam Merchant Monitoring Program (SMMP) runs independently of your chargeback and fraud ratios. It flags merchants for suspected scam or mule-like activity, for example a combined refund-and-chargeback rate above 5% of transactions in a rolling 30-day window (applied to merchants with at least 500 transactions and under six months of processing history), or a sudden drop in authorization approval rates. A merchant can clear ECP and EFM cleanly and still be investigated under SMMP, and confirmed cases can lose processing immediately, with no fines and no remediation window.

Global Merchant Audit Program (GMAP), due April 1, 2027

Mastercard GMAP (Global Merchant Audit Program) is scheduled to replace ACMP on April 1, 2027. Mastercard has not published the bulletin publicly, so these details come from acquirer and provider summaries such as payabl: GMAP combines confirmed fraud, including fraud that never becomes a chargeback, with non-fraud disputes into one assessment; EFM, ECM and HECM carry forward; new High Dispute Merchant and Excessive Dispute Merchant tiers target small merchants with extreme ratios; and the ECM ratio floor tightens in steps while the 100-chargeback minimum stays.

HECM stays at 300 basis points. A merchant holding steady at a 1.2% ratio with 100 or more chargebacks a month is outside ECM today and in 2029, but inside it in 2030, when the floor drops to 1.1%. Confirm the final rules with your acquirer before planning around these dates.

Case Study: How Elementor Cut Dispute Handling Time by 90%

Elementor, a leading web development platform, recently faced significant challenges in chargeback management. The company's billing team spent 20-30 minutes on each chargeback, manually gathering evidence and uploading through Stripe or PayPal, creating delays and backlogs.

After attempting to build native software to fix the issue, which didn't yield the intended result, the team integrated Chargeflow's automated platform. Chargeflow instantly streamlined evidence collection, submissions, and signal collection with a plug-and-play process, which takes only minutes to implement, compared to weeks or months with other providers.

Results:

Read the full case study.

How Chargeflow Products Map to Mastercard's Programs

Disputes from AI shopping agents land in the same ratio, so see AI agent chargeback liability and Agentic commerce chargebacks for who absorbs them.

Frequently Asked Questions

What is Mastercard's Excessive Chargeback Program (ECP)?

ECP is Mastercard's program for monitoring chargeback count and ratio at the merchant ID level across all transaction types. A merchant is flagged as Excessive Chargeback Merchant (ECM) at 100-299 chargebacks and a 1.5%-2.99% ratio, or as High Excessive Chargeback Merchant (HECM) at 300 or more chargebacks and a ratio of 3% or higher, and fines begin once the merchant has been over the line for two months.

What triggers Mastercard's Excessive Fraud Merchant (EFM) status?

EFM status is triggered when a merchant meets all four criteria in the same month: at least 1,000 eCommerce transactions, at least $50,000 in fraud chargebacks (reason codes 4837 and 4863), a fraud ratio of at least 50 basis points, and 3DS use at or below 10% in the US and Canada or 50% in Europe.

How is the Mastercard chargeback ratio calculated?

Mastercard divides first-presentment chargebacks received in the current month by the Mastercard transactions processed in the previous month, then multiplies by 100 for a percentage or by 10,000 for basis points. For example, 150 chargebacks in July against 7,500 transactions in June is a 2% ratio, or 200 basis points.

Does winning a chargeback dispute lower my ECM ratio?

No. Mastercard counts first-presentment chargebacks, and represented chargebacks are not used to recalculate thresholds or assessments. Winning a dispute recovers the revenue, but only preventing the chargeback from posting, through pre-chargeback alerts, order screening and 3DS, reduces the count.

How can merchants avoid Mastercard's chargeback monitoring programs?

Avoidance comes down to prevention: analyze chargeback reason codes to find attack vectors, enforce strong customer authentication (3DS or Mastercard Identity Check) on card-not-present sales, deploy real-time fraud and dispute monitoring, and resolve disputes before they escalate into chargebacks. Merchants already close to a threshold should open forbearance discussions with their acquirer and prepare remediation documentation early.

What is Mastercard GMAP and does it replace ECP?

The Global Merchant Audit Program (GMAP) is scheduled to replace Mastercard's Acquirer Chargeback Monitoring Program on April 1, 2027. According to acquirer and provider summaries, ECM, HECM and EFM carry forward inside a single fraud-and-dispute assessment, and the ECM ratio floor falls from 1.5% to 1.3% in 2029, 1.1% in 2030 and 0.9% in 2031.

Is Mastercard's BRAM program the same as ECM or EFM?

No. BRAM (Business Risk Assessment and Mitigation) screens merchants and their business models for brand and reputational risk at onboarding and during ongoing monitoring, separate from the transaction-level chargeback and fraud thresholds that drive ECM, HECM and EFM. Mastercard's global compliance programs page lists BRAM, ECP, EFM and the Questionable Merchant Audit Program (QMAP) as separate programs, so a merchant can be compliant with one and flagged under another.

What happens if my business gets flagged under Mastercard's monitoring program?

Your acquirer is notified and must coordinate a remediation plan with you. Depending on the tier, you face monthly fines from $1,000 up to $200,000 for HECM, along with MID flagging and, in severe cases, a MATCH listing that can affect your ability to process cards elsewhere. Exiting the program requires staying below the threshold for three consecutive months.

Your Next Move: Compliant, Approaching, or Already Enrolled

The difference between merchants who stay in good standing and those facing processing termination usually comes down to early intervention, systematic prevention and the right technology. Here is an action plan for each stage on the risk ladder:

Compliant:

• Track monthly ratios to avoid surprises.
• Raise 3DS or data-only coverage on CNP transactions, since low 3DS use is one of the four EFM criteria.
• Deploy real-time fraud detection with machine learning capabilities.
• Establish a chargeback alert service for dispute prevention and proactive, intentional refund. Before enrolling, work out the cost of chargeback alerts per resolved dispute and how alerts shift your ECM ratio.

Approaching Thresholds:

• Analyze chargeback data to pinpoint reason codes and attack vectors.
• Request forbearance discussions with your acquirer before formal enrollment.
• Implement emergency mitigation, including enhanced fraud filters, proactive refunds, etc.
• Prepare comprehensive remediation documentation now, not after program enrollment.

Already Enrolled:

Your timeline is critical. Focus on these high-impact action items:

• Deploy an automated chargeback management tool (like Chargeflow) for fast, reliable dispute prevention and recovery.
• Enhance customer service touchpoints and billing descriptors.
• Implement advanced fraud scoring and 3DS authentication.

If you are approaching a threshold or already enrolled, talk to our team about remediation. Contact us if you need help getting started.