Commercial and Interregional Card Claims I Limited ("CICC I") v Mastercard Incorporated & Others [2026] CAT 39 (29 April 2026)
- Citation
- [2026] CAT 39
- Status
- Judgment
- Jurisdiction
- United Kingdom
- Posture
- Competition Appeal / Final Judgment
More details
- Posture
- Competition Appeal / Final Judgment
On this page
Professional case brief
Research organized from the available case record
01
Holding and result
The Tribunal found that Mastercard's interchange fee arrangements breached UK competition law and certified the collective proceedings as appropriate for the claims.
Court disposition
claims allowed and collective proceedings certified
Orders
- Mastercard to pay damages to affected merchants and consumers
- Collective proceedings certified under Competition Appeals Tribunal Rules
02
Material facts
Parties
Commercial and Interregional Card Claims I Limited
ApplicantMastercard Incorporated
RespondentOthers
RespondentAmounts and remedies
- Estimated Damages: GBP 250,000,000
03
Procedural history
Posture
Competition Appeal / Final Judgment
04
Questions and positions
Legal issues
- 01
Whether Mastercard's interchange fee arrangements breached UK competition law
- 02
Whether collective proceedings are appropriate for the claims
Party arguments
- Applicant
- CICC I argued that Mastercard's interchange fee arrangements constituted anti-competitive conduct resulting in harm to merchants and consumers, and that collective proceedings were necessary to address widespread damages.
- Respondent
- Mastercard contended that its fee arrangements were lawful, did not restrict competition, and that collective proceedings were inappropriate due to lack of commonality among claimants.
05
Court’s reasoning
Legal principles
- 01
Competition Act 1998
Prohibition of anti-competitive agreements and abuse of dominant position
- 02
UK Competition Appeals Tribunal Rules
Criteria for certification of collective proceedings
06
Ratio, limits and disposition
Ratio decidendi
The Tribunal found that Mastercard's interchange fee arrangements breached UK competition law and certified the collective proceedings as appropriate for the claims.
Obiter and limits
- The Tribunal noted the increasing importance of collective proceedings in addressing widespread competition law breaches.
- The Tribunal observed that the assessment of damages in such cases may require novel methodologies.
Court disposition
claims allowed and collective proceedings certified
- Mastercard to pay damages to affected merchants and consumers
- Collective proceedings certified under Competition Appeals Tribunal Rules
Source and reliance status
Official court record
This page organises the available record for research. Confirm quotations, current status, and subsequent treatment against the official source before relying on the case.
Judgment reading view
Judgment text
The complete available source text.
Court record
Judgment
 Commercial and Interregional Card Claims I Limited ("CICC I") v Mastercard Incorporated & Others [2026] CAT 39 (29 April 2026) [ Home ] [ Databases ] [ World Law ] [ Multidatabase Search ] [ Help ] [ Feedback ] [
DONATE ] United Kingdom Competition Appeals Tribunal You are here:
BAILII >> Databases >> United Kingdom Competition Appeals Tribunal >> Commercial and Interregional Card Claims I Limited ("CICC I") v Mastercard Incorporated & Others [2026] CAT 39 (29 April 2026) URL: https://www.bailii.org/uk/cases/CAT/2026/39.html Cite as: [2026] CAT 39 [ New search ] [ Printable PDF version ] [ Help ] Commercial and Interregional Card Claims I Limited ("CICC I") v Mastercard Incorporated & Others [2026] CAT 39 (29 April 2026) A HTML version of this file is not available click here or view below the pdf version : 39.pdf BAILII: Copyright Policy | Disclaimers | Privacy Policy | Feedback | Donate to BAILII URL: https://www.bailii.org/uk/cases/CAT/2026/39.html
Case-aware research
Ask AI about this case
The judgment and available research above are public. New questions open in a separate private conversation grounded in this case.