• Written by: Merchant Connect UK
• April 18, 2026

If your business has ever been declined for a merchant account or faced higher processing fees, your MCC code could be the reason.

In 2026, understanding high-risk MCC codes is essential for any UK business operating in regulated or high-risk industries. These codes directly impact your approval chances, fees, and long-term payment stability.

In this guide, we explain what MCC codes are, which ones are considered high risk, and how they affect your payment processing.

What Is an MCC Code?

An MCC (Merchant Category Code) is a four-digit number assigned to your business by payment processors and card networks.

It categorises your business based on the type of goods or services you offer.

Card networks like Visa and Mastercard use MCC codes to:

• Assess transaction risk
• Set interchange fees
• Monitor fraud and chargebacks
• Apply compliance rules

Every merchant account is assigned an MCC during onboarding.

What Makes an MCC Code “High Risk”?

An MCC is considered high risk when the associated industry has:

• Higher-than-average chargeback rates
• Increased fraud exposure
• Regulatory complexity
• Cross-border transaction volume
• Reputation or compliance concerns

Businesses in these categories require specialised high-risk payment processing solutions.

Common High-Risk MCC Codes (2026)

Below are some of the most common high-risk MCC codes relevant to UK and international merchants:

Gambling & Betting

• MCC 7995 – Betting, including lottery tickets, casino gaming, chips, and wagering

Adult Services

• MCC 5967 – Direct marketing (often used for adult content and subscription services)

Crypto & Digital Assets

• Often classified under financial services or assigned specialised MCCs depending on the provider

Forex & Trading

• Typically categorised under financial services MCCs with elevated risk profiles

Subscription & Continuity Billing

• Various MCCs depending on sector, but flagged due to recurring billing risks

Travel & Ticketing (Higher Risk Segments)

• Certain travel businesses can be high risk due to cancellations and refund exposure

Why MCC Codes Matter for Your Business

Your MCC code directly impacts how payment providers and banks treat your business.

1. Approval Rates

High-risk MCC codes are more likely to be declined by standard payment providers.

This is why many businesses must work with specialist high-risk payment partners.

2. Processing Fees

Higher-risk MCCs usually come with:

• Increased transaction fees
• Rolling reserves
• Higher chargeback penalties

This reflects the increased risk taken by acquiring banks.

3. Chargeback Monitoring

Card networks closely monitor merchants under high-risk MCC codes.

If your chargeback ratio exceeds thresholds, you may face:

• Fines
• Monitoring programmes
• Account termination

4. Compliance Requirements

High-risk MCC categories often require:

• Strong AML and KYC procedures
• Clear refund policies
• Transparent business practices
• Regulatory licensing (where applicable)

Can You Change Your MCC Code?

Your MCC code is assigned based on your actual business activity, not what you request.

However, issues can arise if:

• Your business model is misclassified
• You pivot into a new service
• You offer multiple products under one account

If your MCC is incorrect, it can lead to:

• Higher fees
• Processing issues
• Account reviews or termination

Working with the right provider ensures accurate classification from the start.

How to Manage High-Risk MCC Codes Effectively

If your business falls into a high-risk category, there are ways to manage and reduce risk.

Work with a Specialist Payment Provider

High-risk providers understand MCC classifications and match you with suitable acquiring banks.

Implement Strong Fraud Prevention

Use:

• 3D Secure authentication
• AI fraud detection tools
• Real-time transaction monitoring

Keep Chargebacks Low

Maintain clear policies and strong customer support to reduce disputes.

Ensure Full Compliance

Stay aligned with:

• AML and KYC regulations
• Data protection laws
• Industry-specific requirements

Compliance is critical for long-term account stability.

How Merchant Connect Helps High-Risk Merchants

At Merchant Connect, we specialise in helping businesses navigate high-risk payment processing, including complex MCC classifications.

We provide:

• High-risk merchant account setup
• Access to gambling-friendly and high-risk acquiring banks
• Multi-currency payment solutions
• Open Banking and alternative payment methods
• Chargeback and fraud management tools

We ensure your business is correctly classified and positioned for long-term success.

Final Thoughts

MCC codes may seem like a small technical detail, but they play a major role in how your business is treated by payment providers.

Understanding your high-risk MCC code helps you:

• Improve approval chances
• Avoid unexpected fees
• Maintain compliance
• Protect your merchant account

If your business operates in a high-risk sector, working with an experienced payment provider is essential.

Contact Merchant Connect today to secure a payment solution tailored to your industry.