To accept card payments, you need a way to authorise a debit or credit card and settle the funds into your account, whether that is an online checkout, a card machine, a payment link, or Tap to pay on a phone.
This playbook shows a merchant how to accept card payments online and in person, what card payment fees really cost, how to take card payments without a machine, and how to get paid across the UK and Europe. Think of card acceptance as the doorman of your business: when it waves customers through smoothly, revenue walks in; when it fumbles, buyers turn around and leave.
What it means to accept card payments (the 2-second relay)
Accepting card payments means your business can take money from a customer's debit or credit card and receive those funds in your merchant account. In the roughly two seconds between tap and "approved," a relay team passes the baton: the payment gateway captures the card, the card network (Visa, Mastercard) routes the request, the issuing bank checks the funds, and the acquirer settles the money to you.
You never see the handoffs, but every one has to land cleanly, or the sale fails. A reliable card payment processing setup is simply a relay team that never drops the baton.
How to accept card payments online
To accept card payments online, connect a payment gateway to your checkout so customers can pay by card, digital wallet, or a local European method. The gateway encrypts the card details, requests authorisation, and confirms the sale in real time. For an ecommerce store or a SaaS business billing on subscription, the online checkout is the till, and every extra field is a queue: the longer the queue, the more shoppers abandon their baskets. The merchants who win online keep the path from "add to basket" to "payment approved" as short as a sprint.
How to accept card payments in person
To accept card payments in person, you use a card machine, a card reader, or Tap to pay on a compatible smartphone. Contactless is now the default across Europe rather than a bonus feature, so in-person acceptance should cover chip and PIN, contactless cards, and mobile wallets such as Apple Pay and Google Pay.
Contactless payments made up 83% of in-person card transactions in Europe in the first half of 2025, with the euro area processing 29.6 billion contactless payments, so a merchant who cannot take a tap is turning away the way most customers now prefer to pay.
How to take card payments without a machine
You can accept card payments without a machine using four routes: Tap to pay on a phone, a shareable payment link, a QR code that opens a hosted checkout, or a virtual terminal where you key in a phone order.
Tap to pay is the lightest of all, turning an ordinary smartphone into a contactless terminal with no hardware to buy. For a market stall, a mobile trader, or a pop-up, it is like carrying a full shop counter in your pocket and opening for business wherever the customer happens to be.
What does it cost to accept card payments? (fees, decoded)
Card payment fees usually combine a percentage of each sale with a small fixed charge per transaction, and the total is built from three layers: interchange, scheme fees, and your provider's margin. In the UK and EEA, interchange on consumer cards is capped at 0.2% for debit and 0.3% for credit, so the gap between a good rate and a bad one is mostly what sits on top of those caps.
Compare the whole picture, transaction fees, gateway or terminal costs, and settlement speed together, because a headline rate that hides slow settlement can starve your cash flow.
| Fee layer | Who charges it | What a merchant should know |
| Interchange fee | Customer's issuing bank | Capped at 0.2% debit / 0.3% credit on consumer cards in the UK/EEA. |
| Scheme fee | Card networks (Visa, Mastercard) | Small network charges that vary by card and transaction type. |
| Provider margin | Your payments provider | The negotiable part; compare it alongside settlement speed and support. |
Online vs in person vs Tap to pay: which fits your business?
| Method | Best for | What you need | Strength |
| Online checkout | Ecommerce, SaaS, subscriptions | Payment gateway on your site | Global reach, recurring billing |
| Card machine / reader | Shops, hospitality | Terminal or card reader | Fast, familiar in-store payments |
| Payment link / QR | Invoices, social selling | A link or QR code | No website or hardware needed |
| Tap to pay | Mobile, pop-ups, field sales | A compatible smartphone | Zero extra hardware, quick to start |
How to start accepting card payments in 5 steps
- Map where you sell: online, in person, or both (the omnichannel route).
- Choose a payments provider and open a merchant account.
- Connect a payment gateway to your checkout, or set up a card reader, payment link, or Tap to pay.
- Switch on the cards and methods your customers use, including contactless and local European options like iDEAL and Bancontact.
- Run a live test transaction, then go live and reconcile your first settlement.
Accepting card payments across the UK and Europe
Selling across borders means you must accept credit and debit card payments alongside the local methods European shoppers reach for first: iDEAL in the Netherlands, Bancontact in Belgium, BLIK in Poland, plus a fast-growing set of digital wallets.
A customer who cannot pay their usual way often does not pay at all, so offering the right local mix lifts approval rates and shrinks abandoned checkouts. Pairing card acceptance with multi-currency settlement and 300+ local and alternative payment methods is the difference between selling to one country and selling to a continent.
Staying secure and compliant
Accepting cards safely means meeting PCI DSS and supporting Strong Customer Authentication (SCA) under PSD2 in Europe. A capable provider carries most of that weight for you through tokenisation, 3-D Secure, and fraud screening, protecting both merchant and shopper.
Treat security like a seatbelt: invisible until the second it saves you, and never optional.
Let customers pay their way
Card acceptance is not a technical project reserved for big retailers; it is the doorman that decides how many ready-to-buy customers actually make it through. Choose where you sell, pick a provider that covers online checkout, in-person terminals, payment links, and Tap to pay, keep interchange and total fees in view, and give European shoppers the local methods they already trust.
Do that and you close the single biggest leak in the customer journey, the moment a willing buyer cannot pay the way they want. When you let customers pay their way, card acceptance stops being a cost and becomes your quietest growth engine.
Frequently asked questions
How can a small business accept card payments?
A small business can accept card payments by opening a merchant account with a payments provider, then taking cards online through a payment gateway, in person with a card reader, or on a phone with Tap to pay.
Can I accept card payments without a machine?
Yes. You can accept card payments without a machine by using Tap to pay on a smartphone, a shareable payment link, a QR code, or a virtual terminal for phone orders.
How much does it cost to accept card payments?
Card payment fees combine a percentage of each sale with a small fixed charge, built from interchange, scheme fees, and your provider's margin. In the UK and EEA, consumer interchange is capped at 0.2% for debit and 0.3% for credit.
How long does it take to start accepting card payments?
With most modern providers, a merchant can be verified and start accepting card payments within a day or two, depending on account checks and how you integrate the gateway or reader.
What is the difference between accepting card payments online and in person?
Accepting card payments online uses a payment gateway on your website, while accepting card payments in person uses a card machine, reader, or Tap to pay. Omnichannel providers let you do both from one account.
Do I need a merchant account to accept card payments?
Usually yes, but payment facilitators let smaller merchants accept card payments through an aggregated account, so you can start taking cards without setting up an individual merchant account first.