High risk merchant accounts: how they work and what they cost.

Processors judge risk by how likely your payments are to be reversed. A chargeback is when a customer asks their bank to take back a payment; the processor refunds the bank and recovers the money from you. If you cannot pay, the processor carries the loss. So businesses with more chargebacks, more fraud or more legal exposure are priced and checked as high risk.

The usual reasons are: customers pay long before they receive anything, as in travel and events; products are regulated or restricted, as in gambling, crypto, forex and some supplements; sales rely on free trials or subscriptions that customers forget; or fraudsters target the goods, as with crypto and digital goods.

The card schemes set rules for these sectors. Visa's Core Rules, April 2026 edition, require an acquirer to be approved by Visa before it processes for high-integrity risk merchants, to pass a financial review and possibly provide collateral, and to register each such merchant with Visa. Mainstream providers also publish their own lists: Stripe's UK list prohibits gambling and lotteries and restricts cryptocurrency exchanges, investment services and travel reservation clubs.

A reserve is money the processor holds back to cover future chargebacks. PayPal's UK user agreement describes the most common type, a rolling reserve, where a percentage of each day's takings is held and released later. Its own example is 10% held for 90 days: 10% of day one's money is released on day 91, and so on. It also describes a minimum reserve, a fixed sum taken upfront or built up from sales.

Worked example: a business taking £50,000 a month, about £1,667 a day, on a 10% rolling reserve for 90 days. About £167 is held each day. After 90 days, about £15,000 is held. From then on, each day's release roughly matches each day's new hold, so the reserve stays at about £15,000 while sales are steady. It is your money, released on schedule, but it is cash you cannot use.

Other common conditions are delayed payouts, a cap on monthly volume, higher rates, a security deposit and a requirement to use 3D Secure on every payment. Rates for high-risk sectors are almost always quoted, not published.

Take a business with 10,000 card payments a month. Under Mastercard's programme, 150 chargebacks in a month is 1.5%, with more than 100 chargebacks, so it is flagged. Under Visa's programme, 150 fraud reports and disputes is also 1.5%, but below the 1,500 count, so the merchant threshold is not reached. Your acquirer's whole portfolio is measured at 0.5% and 0.7%, so it has its own reasons to act well before you reach either merchant threshold.

What helps: use 3D Secure; make your business name on card statements easy to recognise; answer customer complaints and refund quickly, before the customer goes to their bank; send reminders before renewals; and keep delivery evidence. Visa's ratio excludes disputes resolved through pre-dispute solutions, and Stripe offers prevention tools powered by Verifi from Visa and Ethoca from Mastercard.

Check your ratios every month. A rising ratio is easier to fix early than after a processor has added a reserve or given notice.

We work with banks and processors that accept higher-risk sectors, and we know which of them take businesses like yours. We prepare your application so it answers the questions underwriters ask, present it to the providers most likely to say yes, and negotiate the rate, reserve, payout timing and any volume limits. No one can promise approval, and we never do.

Once you are live, you keep a named account manager who reviews your chargeback and refund levels with you each month, so problems are fixed before a processor adds a reserve or gives notice, and who takes it up with the provider if your terms change. Our service is free to you. We may receive a fee from the provider you choose; it never changes the price you pay.