UK Payment Surcharge Rules for Merchants

A 40p card fee on a café till screen may look like a simple way to recover processing costs. For most consumer card payments in the UK, it is not an option. Payment surcharge rules can catch out otherwise careful merchants, particularly where an EPOS setup, online checkout and delivery orders all show prices differently.

The practical position is straightforward: do not add a separate charge because a consumer pays by standard debit or credit card. Build legitimate payment costs into your overall pricing instead. The detail matters, though, because commercial cards, business-to-business sales and non-card payment methods can sit under different rules.

The core UK payment surcharge rules

Since January 2018, UK businesses have generally been prohibited from charging consumers extra for using consumer debit cards or consumer credit cards. The ban covers payment methods regulated under the Interchange Fee Regulation, including common Visa and Mastercard consumer cards.

For a shop, restaurant, salon or takeaway, that means the price displayed to a customer should be the price they pay when they tap, insert or use a consumer card online. A separate "card charge", "processing fee" or "terminal fee" does not become acceptable simply because it is described differently.

This applies whether the customer pays at a countertop terminal, through a mobile card reader, on an online ordering page, by payment link or after receiving an invoice. The channel has changed, but the principle has not.

The policy behind the rules is consumer fairness. Card acceptance is a normal cost of trading for many businesses, much like rent, staff time or packaging. Merchants can set their prices to cover operating costs, but they should not single out consumers at checkout for using a protected card type.

What merchants can still charge for

The surcharge ban does not mean every payment-related charge is automatically unlawful. It means a charge must have a genuine basis, be presented clearly and comply with the rules that apply to that sale.

A business can offer different prices for genuinely different products or services. A restaurant may charge a delivery fee, a retailer may have a minimum order value for a promotional bundle, and a venue may charge for a late cancellation where its booking terms are clear. Those charges cannot be a disguised fee for paying with a consumer debit or credit card.

You can also choose to stop accepting a payment type altogether, subject to your merchant agreement and sensible customer communication. What you should not do is accept a consumer card and then add an extra amount because the customer chose it.

Cash discounts need care too. A lower cash price can easily look like a card surcharge when the card price is the headline price. The safest approach is to set and display one clear customer price, rather than rely on pricing labels that create confusion at the till.

Commercial cards and business customers: where it depends

Commercial cards are not always covered by the same consumer surcharge restrictions. These include cards issued for business expenses, purchasing or corporate travel. In some circumstances, a merchant may be able to surcharge for accepting them.

That is not a free pass to add any figure you choose. Your card-acquiring agreement may restrict surcharging, set requirements for how it is displayed or prohibit it for particular card schemes. The charge should also be proportionate to the actual cost of accepting that payment method, rather than becoming a profit centre.

There is another operational challenge: staff and systems must identify the payment type correctly. A customer may use a company card to pay for a personal purchase, or a business may pay an invoice with a card that appears similar to a consumer card. If your team cannot reliably distinguish eligible commercial cards, applying surcharges at the point of payment creates avoidable risk and awkward conversations.

For many small and mid-sized merchants, it is simpler to use a transparent all-in price. If commercial-card acceptance is a meaningful cost in your business, review the issue with your payment provider and obtain specific legal or compliance advice before introducing any charge.

Clear pricing matters before the customer pays

A payment charge that is permitted in principle can still cause problems if it appears too late. Customers should know the full price before they are committed to the purchase. This is especially relevant for online checkouts, QR-code ordering, phone payments and invoice portals, where a fee may be configured separately from the main product price.

Check every place a customer can see or pay a price. Your EPOS product settings, menu boards, website, booking software, delivery integration and staff scripts should tell the same story. A promotion that shows one total online but produces another at checkout is likely to damage trust even if the difference was caused by a simple configuration error.

For hospitality businesses, service charges deserve separate handling. A discretionary service charge is not a card surcharge, but customers should be able to understand whether it is optional and whether it has been added to the bill before payment. Do not use a service charge to recover card-processing costs while presenting it as something else.

Four checks before changing your checkout settings

Before adding, removing or renaming any fee, run a quick commercial and compliance check:

• Identify which payment types you accept, including consumer cards, commercial cards, digital wallets and bank transfers.

• Review your merchant-services agreement for card-scheme and acquirer requirements.

• Test the customer journey on every channel, from the first displayed price through to the receipt.

• Train staff on what they can say when customers ask about pricing, refunds or payment options.

Receipts matter here. They should make it easy to see what was purchased, what was charged and whether any permitted fee applies. Vague line items create disputes, slow down refunds and make reconciliation harder.

Avoid workarounds that create bigger problems

Businesses sometimes try to recover payment costs through labels such as "admin fee", "booking fee" or "digital transaction charge". If the customer pays that amount only when using a protected consumer card, the label will not change the substance of the charge.

Likewise, setting a low advertised price and adding a compulsory payment-related fee at the end of an online order can be misleading. Customers compare headline prices. A checkout that changes the deal at the final step is unlikely to feel fair, and it can lead to abandoned baskets, complaints and chargeback pressure.

Minimum spend policies also require a commercial judgement. A small minimum card spend may reduce the impact of micro-transactions, but it can frustrate customers who expect to pay by contactless. If you introduce one, display it clearly and make sure your staff apply it consistently. In a busy café or convenience setting, the lost goodwill may cost more than the fee you are trying to manage.

Build payment costs into a pricing plan

The better question is rarely "How do we pass on this card fee?" It is "What is our real cost to serve each sale?" Payment processing is only one part of that calculation. Labour, wastage, delivery commissions, refunds, equipment, software and VAT all affect margin.

A reliable EPOS and payment setup can help by making costs visible across the business. When in-store, mobile and online takings are tracked consistently, owners can price with better information rather than reacting to each individual card transaction. That is particularly useful for retailers with many low-value purchases and restaurants balancing table service, collection and delivery.

Flow Pay UK works with merchants that need straightforward payment acceptance alongside practical point-of-sale support. Whatever provider you use, ask for clear pricing, understand how different card types are treated and ensure your checkout reflects the terms you have agreed.

Payment surcharge rules are not just a compliance task. They are a chance to make pricing easier to understand. A customer who sees one honest total, pays quickly and receives a clear receipt is more likely to come back than one who feels caught out at the final tap.