Special Trade Contractors (Not Elsewhere Classified).
Other specialty construction trades not otherwise categorised.
- MCC
- 1799
- Category
- Contracted Services
- Cardflo support
- Yes
What MCC 1799 covers
Merchant Category Code 1799 is the ISO 18245 identifier used by the card networks for special trade contractors (not elsewhere classified). Acquirers, issuers and regulators use this code to set interchange, scheme fees, fraud rules and reporting categories for every transaction your business processes.
Other specialty construction trades not otherwise categorised. 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 1799 encompasses 'Special Trade Contractors (Not Elsewhere Classified)', covering a diverse range of specialist construction and repair services not specifically categorised elsewhere. This can include trades like demolition, excavation, well drilling, glass installation, and scaffolding services.
Merchants vary from small, local specialists to larger firms handling niche aspects of major construction projects.
Ticket sizes and transaction frequency are highly variable due to the broad nature of the MCC. Some services might involve frequent, smaller repair jobs, while others are project-based with significant, infrequent payments.
Chargebacks are generally low but can arise from disputes related to service completion, quality of specialised work, or contract discrepancies. Payments are predominantly card-not-present.
There are no specific scheme programmes applicable to this broad 'catch-all' MCC. Standard Visa and Mastercard guidelines for business services apply.
Cardflo's flexible onboarding and risk assessment processes can accommodate the diverse business models under this MCC, offering customised payment solutions and integrating various APMs to suit specific client needs.
Specialist trade contractors in this broad MCC must configure acceptance to match their specific service model. If you handle frequent, smaller repairs, favour mobile POS and e-invoicing.
For large, infrequent project payments, prioritise robust CNP solutions with 3DS2. Given the varied risk profiles within 1799, prepare for individual acquirer scrutiny during KYB.
Transparent communication with clients, especially regarding service deliverables and timelines, is key to dispute prevention. Acquirers will generally assess your specific trade, and risk profiles vary from low to medium, influencing potential reserve expectations.
Acquirer and acquirer assessment stance.
Low to medium-risk standard board. Due to the 'not elsewhere classified' nature, individual merchant underwriting is key.
Most will be low risk, but some highly specialised or higher-value services may warrant additional scrutiny. Reserves are typically not required unless specific risk factors are identified.
Dispute and chargeback profile.
The primary chargeback reason codes for miscellaneous special trade contractors are 13.1 / 4853 (services not as described) and 13.3 / 4855 (non-receipt of goods or services).
These often arise from disputes over the quality of specialised work, completion issues, or discrepancies between agreed services and actual delivery.
To combat these, provide detailed contracts outlining the specific services, photographic evidence of completed work, client sign-offs, and clear communication logs detailing any changes or agreements, particularly for unique or bespoke specialisations.
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 1799
- Placement with acquirers that actively board MCC 1799 businesses in your region.
- Placement for trades, contractors and project-based businesses with variable ticket sizes.
- Job-deposit and progress-payment flows supported on a single MID.
- Card-present and card-not-present routing for site visits and remote invoicing.
- Dispute support tuned to the documentation contractors actually keep.
- Dedicated onboarding manager who knows the trade-services risk profile.
Payment methods typically enabled.
Onboarding checklist.
What acquirers typically ask to see when boarding MCC 1799. 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 trading volume.
- Standard-form contract, quotation template and change-order template.
- Refund, cancellation and deposit-handling policy shown at point of sale and on the website.
- Public liability and, where relevant, professional indemnity insurance certificates.
- Six months of processing statements or bank statements demonstrating trading pattern.
See also: Know Your Customer (KYC) · high-risk merchant · smart routing.
Talk to an acquiring specialist about your MID setup.
Common questions
Given the broad nature of MCC 1799, how is risk typically assessed for these miscellaneous contractors?
Risk assessment for MCC 1799 merchants is highly individualised. Acquirers evaluate the specific services offered, average ticket size, project terms, business structure, and prior processing history.
Factors like upfront payment percentages, long project timelines, and unique contractual terms are scrutinised. Cardflo's KYB onboarding focuses on understanding your specific business operations to provide an accurate risk profile.
What measures should 'Special Trade Contractors' take to prevent chargebacks, especially for unique services?
Prevention hinges on clear, detailed contracts specifying the exact scope of unique work, materials, timelines, and acceptance criteria. Photographic evidence, project logs, and client sign-offs at crucial stages are vital.
For highly specialised services, establishing clear expectations regarding outcomes and potential limitations at the outset can prevent 'service not as described' disputes.
Can I use Cardflo to accept payments efficiently for varied project types under MCC 1799?
Yes, Cardflo's platform offers versatility for varied project types. For remote deposits or final payments, a virtual terminal or secure payment links are effective.
For integrating payments into project management software or enterprise resource planning (ERP) systems, our robust API allows for customisable integrations. This flexibility ensures you can accept payments efficiently regardless of project complexity.
How can a niche specialist contractor, such as a well driller or demolitions expert, best structure their payment terms to minimise chargebacks?
Niche specialist contractors should use clear, comprehensive contracts that meticulously detail project scope, payment milestones, and expected deliverables. Implement a phased payment structure, with deposits taken upfront (using 3DS2) and subsequent payments tied to demonstrable completion of specific project stages.
Secure written client sign-offs at each milestone, acknowledging satisfactory progress before invoicing for the next. For high-value projects, consider a final payment only upon project completion and client final inspection.
Transparency regarding potential challenges, such as unexpected site conditions, should be communicated and documented to manage client expectations.
What payment channels are most secure and efficient for special trade contractors who primarily deal with CNP transactions for varied project sizes?
For special trade contractors primarily handling CNP transactions, a multi-channel approach offers both security and efficiency. E-invoicing through a secure payment gateway is ideal for larger project payments, offering clear reconciliation and enabling 3DS2.
For mobile or on-site payments, a virtual terminal accessed via a tablet or phone allows you to securely process card details while ensuring PCI DSS compliance. Integrating these with your accounting software streamlines operations.
Always prioritise payment gateways that offer robust fraud tools and tokenisation to protect sensitive card data, regardless of transaction size, reducing your PCI compliance burden.
Other MCCs in Contracted Services
Related industries.
Related features.
Related guides.
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