High-Risk Merchant Account Explained

What Visa says is high integrity risk

Visa publishes MCCs it treats as high integrity risk. The category codes above are the ones its manual names.

• Visa’s manual lists “high integrity risk” MCCs: for card-absent transactions 5122 (drugs and sundries), 5912 (drug stores and pharmacies), 5966 (outbound telemarketing), 5967 (adult content and services), 5993 (cigar stores and stands), 7273 (dating and escort services) and 7995 (betting); and for certain card-absent transactions 4816, 6211, 5968 (subscription “negative option” merchants), 5816 (skilled game wagering) and the crypto MCCs 6051 and 6012.

  Visa: Merchant Data Standards Manual (April 2026)· Checked 2026-10-15

• Visa says a merchant with more than one line of business must give the high integrity risk line of business its own high integrity risk MCC and use another MCC for the rest.

  Visa: Merchant Data Standards Manual (April 2026)· Checked 2026-10-15

• Visa defines the merchant category code as a four-digit number that describes a merchant’s primary business based on annual sales volume, and requires acquirers to assign the correct MCC to each merchant.

  Visa: Merchant Data Standards Manual (April 2026)· Checked 2026-10-15

How underwriting works

Underwriting is the review a provider does before it opens or keeps an account. For higher-risk businesses Visa describes an enhanced review.

• Visa’s risk guide lists three merchant qualification standards: financial responsibility, posing no harm to the Visa payment system, and operating within an allowed jurisdiction.

  Visa: Payment Facilitator and Marketplace Risk Guide (April 2021)· Checked 2026-10-15

• Visa’s risk guide says high-brand risk merchants pose an elevated risk and need enhanced due diligence: a detailed review of the goods or services offered, how they are marketed and sold, validation of the merchant location, review of previous processing history, and checks of consumer complaint boards.

  Visa: Payment Facilitator and Marketplace Risk Guide (April 2021)· Checked 2026-10-15

• Visa’s risk guide says acquirers and their agents use the Visa Merchant Screening Service to list merchants whose payment services were terminated for presenting an undue risk, and that payment facilitators must check it for each applicant, though it should not be the only reason to decline one.

  Visa: Payment Facilitator and Marketplace Risk Guide (April 2021)· Checked 2026-10-15

• Square says it sometimes puts an application through underwriting, looking at the business model, how you bill customers, your processing history and financial stability, and may ask for financial statements and recent bank statements.

  Square Help: Review underwriting requirements with Square· Checked 2026-10-15

What a reserve is and why it is used

Providers sometimes hold part of your sales as a reserve against future chargebacks.

• Square says it uses rolling reserves, where a percentage of card payments is set aside and released on a rolling basis, and that the funds still belong to you and are used only if you cannot cover a chargeback.

  Square Help: Manage payment reserves with Square· Checked 2026-10-15

• PayPal says it uses rolling, minimum and jumpstart reserves, and that a rolling reserve holds a percentage of each day’s sales for a set period, for example 10% held for 90 days.

  PayPal Business Resource Center: account reserves· Checked 2026-10-15

• PayPal says it sets reserves case by case, considering your processing history, whether your industry has more chargebacks or refunds, your claims and disputes, credit history, presold orders and long delivery times, and that it reviews reserves within every 180 days.

  PayPal Business Resource Center: account reserves· Checked 2026-10-15

• Stripe’s explainer says high-risk merchant accounts typically come with higher fees and stricter contract terms, and that many require a rolling reserve, a percentage of transactions held by the provider for a period to cover chargebacks and disputes, and may have longer settlement periods.

  Stripe: High-risk merchant accounts explained (May 12, 2026)· Checked 2026-10-15

How chargeback ratios are measured

Card networks monitor dispute levels as ratios. Visa and Mastercard publish the definitions, and Visa publishes thresholds.

• Visa’s monitoring program uses one count-based ratio for card-not-present transactions: fraud reports plus disputes, divided by settled transactions.

  Visa: Acquirer Monitoring Program fact sheet (2025)· Checked 2026-10-15

• Visa’s fact sheet sets the “Excessive Merchant” level at a ratio of 220 basis points (2.2%) with at least 1,500 monthly fraud and dispute counts in the U.S., and a footnote says the threshold dropped to 150 basis points (1.5%) on 1 April 2026.

  Visa: Acquirer Monitoring Program fact sheet (2025)· Checked 2026-10-15

• Mastercard’s Excessive Chargeback Program flags merchants as Excessive or High Excessive Chargeback Merchants. It measures basis points as chargebacks received in a month divided by Mastercard transactions in the preceding month, times 10,000. The thresholds themselves are in a separate Mastercard manual that we could not read.

  Mastercard: Security Rules and Procedures, Merchant Edition (4 August 2026)· Checked 2026-10-15

• Visa says it monitors merchant dispute activity every month and notifies acquirers about merchants with excessive disputes, and recommends tracking disputes as a share of sales, with card-present and card-absent tracked separately.

  Visa: Dispute Management Guidelines for Visa Merchants (June 2024)· Checked 2026-10-15

Why a business is treated as higher risk

• Stripe’s explainer says high-risk status can come from the industry, chargeback history, financial history, or card-not-present and high-ticket sales, and names tobacco and vaping, CBD and cannabis dispensaries, travel, memberships and subscription box services among industries often treated as high risk.

  Stripe: High-risk merchant accounts explained (May 12, 2026)· Checked 2026-10-15