Business Services (NEC).
Other business services not elsewhere classified.
- MCC
- 7399
- Category
- Business Services
- Cardflo support
- Yes
What MCC 7399 covers
Merchant Category Code 7399 is the ISO 18245 identifier used by the card networks for business services (NEC). Acquirers, issuers and regulators use this code to set interchange, scheme fees, fraud rules and reporting categories for every transaction your business processes.
Other business services not elsewhere classified. Choosing the right MCC is critical: an incorrect code can lead to higher interchange, surcharges, or, in regulated categories, declined transactions and account holds.
MCC 7399 includes a broad range of 'Business Services, Not Elsewhere Classified'. This can encompass services from environmental consultants, secretarial services, telephone answering services, and more specialised B2B offerings.
Ticket sizes and transaction frequency vary wildly, from one-off large consultancy projects to routine, smaller administrative supports. Many transactions are B2B, which often involves invoice payments or larger sums.
Chargebacks can occur due to 'Services Not Rendered' or 'Services Not as Described'. For high-value transactions, clear contracts and proof of service delivery are crucial.
B2B transactions often have longer dispute windows under scheme rules, up to 120 days from service date or transaction date. Visa's Integrity Risk Program or Mastercard's ECP could flag merchants if persistent service issues or consumer complaints surface, even if not explicitly consumer-facing.
Cardflo's sophisticated KYB onboarding and transaction monitoring solutions are critical for MCC 7399, enabling thorough risk assessment for diverse business models and continuous oversight to detect unusual activity, protecting both the merchant and the acquiring bank.
Merchants in this diverse category must tailor acceptance to their specific service model. For B2B services, implement robust invoicing and contract management, ensuring these are available for dispute resolution.
If offering recurring services, clearly outline subscription terms and cancellation policies. High-ticket items necessitate strong KYB/KYC.
Configure your gateway for multi-acquirer routing to optimise international B2B payments, and use smart routing to recover soft declines. Given varied dispute patterns, retain comprehensive service delivery evidence for at least 180 days.
Acquirer and acquirer assessment stance.
Medium-risk standard board with monitoring. Due to the diverse nature, some specific business services may require closer scrutiny.
Reserve requirements are assessed on a case-by-case basis, typically 5-10% rolling for higher-risk sub-categories.
Dispute and chargeback profile.
The most common chargeback reason codes are 13.1 / 4853 (services not as described) and 13.3 / 4855 (non-receipt of goods or services). These arise when clients claim the delivered service did not meet agreed specifications, or was not received at all.
To defeat these, provide signed contracts, clear statements of work, project completion certificates, time-stamped communication logs, and evidence of client acceptance or usage of the delivered service.
See also: chargeback management · payment response codes · Compelling Evidence 3.0.
Book a scoping call to see how Cardflo would set you up.
How Cardflo handles MCC 7399
- Placement with acquirers that actively board MCC 7399 businesses in your region.
- B2B card-not-present processing with Level 2 and Level 3 data support.
- Virtual-card, AP-automation and procurement-card acceptance.
- Invoice-linked payment flows and pay by link options for receivables teams.
- Settlement and reconciliation that maps cleanly to ERP and accounting systems.
- Dedicated onboarding manager experienced with B2B and corporate merchants.
Payment methods typically enabled.
Onboarding checklist.
What acquirers typically ask to see when boarding MCC 7399. Cardflo collects this once and reuses it across every acquirer we route you through.
- Business registration and beneficial-owner documentation (KYB, UBO).
- Six months of processing statements or bank statements demonstrating B2B volume.
- Standard master services agreement or engagement letter template.
- Level 2 / Level 3 data capability evidence for commercial-card processing.
- Refund, cancellation and dispute-handling policy for recurring or retainer billing.
- Chargeback ratio and dispute history covering the last six months, including any Visa or Mastercard monitoring-programme status.
See also: Know Your Customer (KYC) · high-risk merchant · smart routing.
Talk to an acquiring specialist about your MID setup.
Common questions
How does the 'Not Elsewhere Classified' nature of MCC 7399 impact risk assessment?
The 'Not Elsewhere Classified' nature means acquirers must assess each merchant individually, as the risk profile can range from low (e. g. , secretarial services) to high (e. g. , some types of lead generation).
Cardflo performs detailed KYB to accurately categorise and underwrite these varied business models.
Are B2B transactions in this MCC exempt from 3D Secure?
While 3D Secure is generally recommended for card-not-present transactions, B2B payments often quality for exemptions under PSD2's Transaction Risk Analysis (TRA) rules if they are low value, recurring, or initiated by the merchant (MIT).
Corporate cards also often have their own fraud prevention tools that may mitigate the need for 3DS or facilitate frictionless pathways.
What specific documentation should a 7399 merchant provide to mitigate chargeback risk for service-related disputes?
Merchants in this MCC should maintain detailed records of service agreements, contracts, project deliverables, communication logs (emails, meeting notes), and proof of service completion. For digital services, access logs or usage reports are valuable.
These documents are crucial for representment against 'Services Not Rendered' or 'Not as Described' chargebacks.
How can I mitigate disputes arising from vague service descriptions for my B2B consultancy clients?
To mitigate disputes from vague service descriptions, ensure all consultancy contracts explicitly detail deliverables, project phases, and expected outcomes. Implement a formal client sign-off process upon completion of key milestones and the final project.
Maintain clear, dated records of all communications, project documentation, and any client approvals, as this evidence is critical. For high-value engagements, consider using an escrow service or milestone-based payments tied to verified deliverables, reducing the risk of a full payment chargeback.
What specific payment gateway features should an environmental consulting firm prioritise for accepting international payments?
An environmental consulting firm accepting international payments should prioritise gateway features that support multi-currency processing, given diverse client locations. Implement smart routing to direct transactions through acquirers with favourable rates and high authorisation success in the client's region.
Utilise dynamic 3D Secure for enhanced security on CNP transactions, balancing fraud prevention with client experience for B2B. Ensure the gateway provides robust reporting for cross-border transactions and offers tools for managing foreign exchange exposure to optimise reconciliation processes and revenue capture.
Other MCCs in Business Services
Related industries.
Related features.
Related guides.
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