MasterCard Chargeback Reason Codes
MasterCard Chargeback Reason Codes
MasterCard Reason Codes
MasterCard Reason Codes
MasterCard uses four-digit numbers for their chargeback reason codes, each beginning with 48 as the first two digits. Some acquirers, processors or PSPs may just provide the last two digits of the reason code in their data reporting, as that is all that is needed to distinguish between the reason codes and recognize the chargeback description.
MasterCard eliminated some reason codes while condensing or combining others in 2016. There are now 19 different reason codes and while MasterCard does not group or categorize these in a way like Visa disputes, we have organized these into four similar groups below.
MasterCard uses four-digit numbers for their chargeback reason codes, each beginning with 48 as the first two digits. Some acquirers, processors or PSPs may just provide the last two digits of the reason code in their data reporting, as that is all that is needed to distinguish between the reason codes and recognize the chargeback description.
MasterCard eliminated some reason codes while condensing or combining others in 2016. There are now 19 different reason codes and while MasterCard does not group or categorize these in a way like Visa disputes, we have organized these into four similar groups below.
Fraud Related Chargeback Reason Codes
Fraud Related Chargeback Reason Codes
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Wed, Feb 08
|Online (via Zoom)
Balanced ATO Risk Strategies: Leveraging Dynamic Friction
Join The Fraud Practice and Sift for a discussion on the use of dynamic friction with account takeover risk screening, including strategies for applying this type of layered approach

Time & Location
Feb 08, 10:00 AM – 10:45 AM PST
Online (via Zoom)
About the Event
Join Kevin Lee - VP of Digital Trust & Safety at Sift and The Fraud Practice on February 8, 2023 at 10 AM PST/1 PM EST for a discussion on the use of dynamic friction with account takeover risk screening, including strategies for applying this type of layered of approach.
Here’s what you will learn about:
- Three strategies and considerations for applying dynamic friction to the login event
- The importance of communication between the ATO risk and transaction risk screening events
- Maximizing user experience for users with low-to-moderate ATO risk at login
- Understanding how to measure ATO risk exposure for your organization, and how much flexibility that allows with a dynamic approach to ATO
About the Speakers:
Kevin Lee is VP of Digital Trust and Safety at Sift where he helps customers implement strategies that cross-functionally align risk and revenue programs. Prior to Sift, he has spent the last 14+ years leading various risk, chargeback, spam/scams, and trust and safety organizations at Facebook, Square and Google.
Justin McDonald, Sr. Risk Management Consultant at The Fraud Practice, has over 12 years of experience in the eCommerce payments and fraud space serving in Sr. Risk Consultant and Advisor roles with The Fraud Practice. He has led consulting engagements with merchants, payment and risk vendors and private equity firms, performed the data analysis and technical writing for many industry reports, developed and managed professional training and certification programs for fraud and risk professionals, and has spoken at industry events such as the MRC and CNP Expo.