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Best Merchant Service Providers UK 2026: Top Options Compared
Square for small businesses: no contract, free POS app. Tide for lowest rate at volume. SumUp for cheapest hardware entry at £14.99.
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Fees and terms verified against provider websites, May 2026. Quote-based rates require direct enquiry.
Fees verified against provider websites, May 2026. Takepayments and Worldpay rates are quote-based. Tide plan rate on Sell In-Person. Always confirm current terms before signing.
How to Choose a Merchant Service Provider
Which provider wins comes down to your monthly card volume and how you trade. If you take under about £100,000 a year, a pay-as-you-go provider like Square or SumUp is almost always cheaper for you, and you skip contracts and monthly fees entirely.
Above roughly £200,000 a year, get a quote from an acquirer such as Worldpay or Takepayments, where the rate you negotiate can beat flat PSP pricing. Ask what your effective rate is once authorisation, settlement and PCI fees are added, not just the headline number you see advertised.
If you also sell in person, check the hardware and settlement terms before you commit. You want a reader that suits how you trade: SumUp or Square for the cheapest entry, myPOS if you need the money in your account the same day.
Best merchant service provider picks by business type
Best for small businesses: Square
Square’s 1.75% flat rate, £19 reader, and free POS app make it the most complete no-contract merchant service for businesses below £4,000/month in card volume.
The hospitality POS features (table management, modifiers, split bills) are free. No underwriting, no account manager required, no monthly fee.
Tide’s Sell In-Person plan at 0.79% + 3p is the lowest published in-person rate in the UK without a custom contract. At £5,000/month in card sales, total cost is £52.50 including the £12.99 plan fee, vs £87.50 with Square at 1.75% PAYG. The break-even against PAYG is around £1,850/month.
SumUp Air at £14.99 is the cheapest mainstream card reader in the UK. The 1.69% PAYG rate is lower than Square’s 1.75%. The Payments Plus plan at £19/month drops the rate to 0.99%, break-even at £2,714/month. For a business that wants to start as cheaply as possible, SumUp is the answer.
Not ideal if: High-volume sellers who would benefit from Dojo or other negotiated per-transaction rates
Transaction fee1.75% flat (all cards incl. Amex)
Monthly feeNone
Hardware cost£19 +VAT
SettlementNext working day (1–2 days standard)
ContractNo lock-in
Amex acceptedYes: same 1.75% rate
Eligibility: UK businesses: sole traders, partnerships, and limited companies. Account holders must be 18 or over. Custom rates available for businesses processing over £200,000 annually. Prohibited categories include firearms and other restricted activities: see Square’s Acceptable Use Policy.
Not ideal if: High-volume sellers who would benefit from Dojo or other negotiated per-transaction rates
Settlement3 working days standard (£2.99+VAT/month for next-day)
ContractTide business account required
Amex acceptedNo
Eligibility: UK sole traders and limited companies with a Tide business account — the reader is tied to Tide banking, so you’ll need (or need to open) a Tide account. Confirm current terms at tide.co.
Not ideal if: Your customers regularly pay by American Express, or you don’t want to move your banking to Tide.
Watch out: No Amex acceptance, and standard settlement takes 3 working days (next-day costs £2.99+VAT/month) — hard stops for some businesses.
Sell In-Person plan at 0.89% + 3p is among the lowest rates in this guide, and the lowest bundled with a full business account
Lifetime 4G SIM removes the phone-tether failure mode entirely
Settles directly into the Tide account, one balance, one reconciliation
£59 introductory hardware price undercuts most rental alternatives
No Amex acceptance, a hard stop for hospitality, salons, and premium retail
Requires a Tide business account, means a bank switch for most applicants
Standard settlement is three working days unless you pay for the next-day add-on
0.89% + 3p on the Sell In-Person plan, among the lowest rates in this guide for mid-volume sellers
Lifetime 4G SIM built in, auto-switches from WiFi to mobile data without manual intervention
Settles directly to Tide business account, single balance, no transfer step
Two hardware models: Reader (4” display, email receipts) and Reader Plus (5.5”, paper receipts)
SumUp Air
Best for Startups
Best for Startups
SumUp Air
The right reader for a sole trader who wants the lowest-commitment start.
Best for: Sole traders and startups wanting the lowest hardware entry cost
Watch out: Battery degrades in cold weather and Bluetooth fails if phone dies mid-shift
Not ideal if: Businesses expecting to scale past £5,000/month quickly, a plan switch will be needed
Transaction fee1.69% flat (0.99% on Payments Plus plan)
Monthly fee£0 or £19/month (Payments Plus)
Hardware cost£15 +VAT
SettlementNext day at 7am
ContractNo contract
Amex acceptedYes
Eligibility: Any UK sole trader, limited company or partnership. You need UK ID and a UK bank account, but there’s no credit check and no monthly contract, so approval is usually same-day. Confirm at sumup.com/en-gb.
Not ideal if: You expect steady card takings above roughly £2,700 a month — past that point SumUp’s £19/month Payments Plus plan (0.99%) undercuts the 1.69% pay-as-you-go rate.
Watch out: The Air pairs to your phone over Bluetooth, so a flat phone battery stops you taking payments mid-shift, and the reader’s own battery drains faster in the cold.
£15 hardware price is the lowest entry point on the market
Next-day 7am settlement is faster than Square’s standard 1–2 working days
Payments Plus at 0.99% is a credible upgrade path above £4,000/month
Amex accepted at the flat rate, no separate premium-card policy needed
Hardware battery degrades in cold weather, unreliable on winter outdoor markets
Bluetooth-to-phone fails if the phone dies on a busy shift
Payments Plus break-even is £3,800/month, most small users should not subscribe
SumUp Air reader at £19, one of the cheapest card readers available in the UK; pairs with the free SumUp app on iOS and Android
Free SumUp POS app, sales reports, item library, basic inventory and team management included with no subscription
Next-day settlement at 7am on every plan, or instant payout to a SumUp business account at no extra cost
Payments Plus subscription at £19/month drops the per-transaction rate to 0.99%, best for businesses processing above £3,300/month
Accepts all major debit and credit cards including Amex, plus Apple Pay and Google Pay, at the same flat rate
myPOS Go 2
Best for Mobile
Best for Mobile
myPOS Go 2
The right choice for any mobile business where “no signal” means “no payment”.
Best for: Mobile and outdoor businesses needing a self-contained 4G reader with no monthly fees and instant access to funds via the myPOS account
Watch out: Funds land in myPOS e-money account first, separate transfer needed to reach a high-street bank
Not ideal if: Businesses already managing till, bookings and accounting from a phone or tablet
Transaction fee1.10% + £0.07 (consumer cards, up to £10k/month)
Monthly feeNone
Hardware cost£29 excl. VAT
SettlementInstant to myPOS e-money account
ContractPAYG, no long-term contract
Amex acceptedYes
Eligibility: UK businesses — sole trader, limited company or partnership. No monthly fee and no fixed contract on pay-as-you-go, and it’s quick to open. Confirm current rates and any account fees at mypos.com/en-gb.
Not ideal if: You already run your till, bookings and accounting from a phone or tablet — the Go 2 is a standalone reader, not a full POS, so it duplicates that setup.
Watch out: Takings settle instantly to a myPOS e-money account, not your bank; you then transfer to a high-street account, which can carry a withdrawal fee — factor that extra step into your cash flow.
Built-in 4G SIM means the reader works without a phone, without WiFi, without a tether
1.10% + 7p beats every flat-rate competitor on transactions above roughly £14
Instant (sub-3-second) settlement to the myPOS account
Physical keypad and screen more durable than phone-reliant alternatives
Funds sit in myPOS, a separate transfer is needed to reach a high-street bank account
Fixed 7p per-transaction fee makes small takings proportionally more expensive
POS app is functional but less developed than Square’s for food or hospitality
Built-in 4G SIM, fully independent reader, no phone or WiFi connection required
Instant settlement to myPOS e-money account, funds available in under 3 seconds
Free myPOS business Mastercard included with every device
Device range extends to Go Combo (with printer dock) and Ultra (Android touchscreen)
Takepayments
Bespoke pricing
Bespoke pricing
Takepayments
Worth a call once you are doing enough volume to negotiate, not before.
Eligibility: Established UK businesses prepared to go through a sales call and a credit/identity check. Pricing is bespoke (set by the acquiring bank), so there’s no instant online sign-up. Confirm at takepayments.com.
Not ideal if: You’re doing under about £4,000/month, or you want published pricing you can compare before talking to sales.
Watch out: No published pricing — the first quote is rarely the best, so negotiate. Hardware is rented on a 12-month minimum term, then rolling monthly.
UK-based support with assigned account management, useful when something actually breaks
Terminals include 4G as standard, not as an optional add-on
Rates are negotiable, favours higher-volume businesses willing to push back
12-month contract with no published pricing, cannot compare without a sales call
First quote is rarely the best quote, puts time cost on the buyer
No obvious edge for businesses doing under £4,000/month, likely more expensive than Square
Terminals include 4G as standard across all models, no add-on SIM cost
BeePaid app and pay-by-link for remote and mobile payment collection
Dedicated UK-based Welcome Team handles setup and onboarding
Rates are negotiable, higher-volume businesses can push back on the initial quote
Best for: Tech-forward businesses already using Stripe online that want in-person and online payments in one unified stack, with one dashboard, one payout flow and one reconciliation.
Watch out: Standard settlement is 3 business days (instant payout costs 1%, min 40p), and you get the most value if you also run Stripe online.
Not ideal if: You want a simple standalone terminal with no setup, or you need same-day settlement as standard.
Settlement3 business days standard (instant payout: 1%, min 40p)
ContractNo contract
Amex acceptedYes
Eligibility: UK-registered businesses (sole trader, Ltd, LLP, charity or partnership) with a UK business bank account for payouts. No minimum trading history or revenue threshold; high-volume merchants move to Stripe Custom with bespoke underwriting. Confirm at stripe.com/gb.
Not ideal if: You want a plug-and-play terminal with no setup — Stripe Terminal is built around Stripe’s platform and suits businesses already on (or moving to) Stripe.
Watch out: Restricted categories (adult content, regulated gambling, firearms, MLM, unregulated CBD and the FCA restricted-activities list) are not accepted, and KYC/KYB via Companies House typically takes 1–3 business days before your first live transaction.
1.4% + 10p for EEA card-present transactions, competitive without a monthly commitment
Unified dashboard: online and in-person payments in one place with consolidated reporting
Stripe Radar fraud detection included, no extra fee
No monthly fee and no contract, suits variable or seasonal transaction volumes
Tap to Pay on iPhone and Android eliminates the need for dedicated hardware
Custom Terminal integration requires SDK development, not a no-code out-of-box setup
2.9% + 10p for non-EEA cards, expensive for businesses with international customers
Standard settlement takes 3 business days; instant payout costs 1% (minimum 40p)
New accounts face a 7-day holding period before first payout
Account holds can freeze both online and in-person payment channels simultaneously
Unified in-person and online payment dashboard with consolidated reporting
Stripe Radar fraud detection included at no extra cost
Tap to Pay on iPhone and Android, no dedicated hardware needed
Best for: Merchants processing tens of thousands of transactions a month who need scale, offline capture, and a reporting suite for a finance team
Watch out: 18-month contract is the longest on the market, setup takes weeks, not minutes
Not ideal if: Sole traders and small businesses, 18-month contract and slow onboarding are excessive for low volumes
Transaction fee~1.5% standard (custom quotes available)
Monthly fee£15–£22.50 (terminal rental)
Hardware cost£15–£22.50/month rental (promotional £0 on some contracts)
SettlementNext day
Contract18 months
Amex acceptedYes
Eligibility: UK businesses that can commit to an 18-month contract and pass Worldpay’s underwriting. Best suited to established, higher-volume merchants; custom quotes are available. Confirm at worldpay.com/en-gb.
Not ideal if: You’re a sole trader or low-volume business — the 18-month contract and slower onboarding are excessive for modest card takings.
Watch out: The 18-month contract is the longest here, and setup takes weeks rather than minutes. Get the per-transaction rate, monthly rental and exit terms in writing.
Offline transaction capture, useful for businesses in patchy-signal locations
Tailored rates become competitive at high volume (£20k+/month)
Reporting and chargeback handling designed for merchants with dedicated finance teams
18-month contract is the longest on this list and the hardest to exit early
Setup and onboarding are slower than fintech competitors, weeks, not minutes
POS integrations require direct confirmation for your specific setup
Accepts all major card schemes including Visa, Mastercard and Amex
Offline transaction capture, stores payments when connectivity drops
Worldpay Business Manager portal with reporting and chargeback management
Multi-currency acceptance with settlement in GBP or original currency
Integrates with major UK EPoS systems including EPOS Now and Lightspeed
Dedicated UK account management on higher-volume contracts
Merchant service provider fees in depth
The cost of card acceptance has three layers: the card network interchange fee, the acquiring bank’s margin, and any software or hardware fees.
Payment service providers (PSPs) like Square, SumUp, Tide, and Stripe pool their merchant relationships and pass through a flat blended rate. Traditional acquirers like Worldpay and TakePayments quote interchange-plus or blended rates based on your card mix and volume.
For businesses processing under £100,000/year: a flat-rate PSP is almost always cheaper and faster to set up.
For businesses above £200,000/year: a custom acquiring quote from Worldpay, TakePayments, or Dojo may produce lower effective rates, especially with a high proportion of low-cost debit transactions.
Stripe offers custom pricing for businesses processing above £100,000/year; below that threshold, the standard published rates apply.
Merchant service provider features compared
POS software
Square has the deepest free POS software: table management, modifiers, open tabs, appointments, and loyalty. SumUp POS Lite covers basic counter service.
Tide, myPOS, and Stripe Terminal handle transactions and reporting but are not EPOS platforms. Worldpay and TakePayments integrate with most third-party EPOS systems rather than providing one themselves.
Settlement and funding speed
myPOS settles to its wallet instantly. SumUp settles next day at 7am. Tide settles next working day.
Square settles in 1–2 working days. Stripe settles in 3 business days as standard; instant payouts are available for a 1% fee (minimum 40p), settling within around 30 minutes. TakePayments and Worldpay settle next working day as standard.
Payment facilitators like Stripe, Square, and SumUp use algorithmic monitoring to manage risk. Unusual chargeback patterns or flags against your industry profile can trigger automatic fund holds or account reviews.
Stripe also publishes a prohibited and restricted business list. Gambling and similar games of chance are barred outright, while regulated products such as CBD are allowed only within strict limits. Expect a facilitator to decline or later close an account in a listed sector.
We rate traditional acquirers like Worldpay or TakePayments higher for businesses where cash flow predictability is critical, though they require underwriting and contracts.
Final Verdict: Which Merchant Account Provider Should You Choose?
For most small UK businesses, SumUp Air and Square Reader are the easiest places to start: no monthly fee, no contract, same-day approval, and flat rates (1.69% and 1.75%) that are simple to budget. SumUp edges ahead on cost as volume grows; Square wins on its free POS app. Below roughly £6,000 a month in card takings, one of these two covers most needs.
The right answer changes with your priorities. myPOS Go 2 is the pick if same-day access to funds matters, settling instantly to a myPOS account. Tide Card Reader suits businesses already banking with Tide that want card takings in the same app. Stripe Terminal is the choice for tech-forward businesses already on Stripe online that want one unified payment stack. And once you are processing higher volumes and value cash-flow certainty over flexibility, the traditional acquirers — Takepayments and Worldpay — earn their contracts through negotiated rates and managed support, provided you accept the underwriting and longer terms.
The bottom line: Start with SumUp Air or Square Reader for low-cost, no-commitment card acceptance; choose myPOS Go 2 for instant funds, Tide for Tide bankers, Stripe Terminal for a Stripe-based stack, and Takepayments or Worldpay once volume and cash-flow predictability justify a contract.
Frequently asked questions
What is a merchant service provider?
A merchant service provider gives businesses the infrastructure to accept card payments. This includes a payment gateway (the connection between your checkout and card networks), a merchant account (the interim holding account for card funds), and usually hardware (a card reader or terminal). PSPs like Square and Stripe handle the acquiring relationship on your behalf.
Do I need a merchant account to accept card payments?
Not a dedicated one. Payment service providers like Square, SumUp, and Stripe maintain a pooled merchant account. You benefit from the same functionality without the underwriting process that individual merchant accounts require. A dedicated merchant account from an acquirer like Worldpay may offer lower rates at high volume but takes longer to set up.
What is the cheapest merchant service for a small business?
For low volume: SumUp Air at 1.69% PAYG with a £14.99 reader. For medium-to-high volume: Tide Card Reader on Sell In-Person at 0.79% + 3p. Both are no-contract and available online within an hour.
Who is Stripe best suited for?
Stripe suits businesses with advanced API integration needs: subscription billing, multi-currency payments, marketplace payouts, and developer-built checkout flows. There is no monthly fee on the standard plan and no contract. Standard settlement is 3 business days; instant payouts are available for a 1% fee (minimum 40p). We recommend Stripe primarily for online-first and developer-led businesses. It does not assign dedicated account managers, so if you prefer a managed relationship consider TakePayments or Worldpay.
Can a payment facilitator freeze my funds?
Yes. Payment facilitators like Stripe, Square, and SumUp use automated risk monitoring. Unusual chargeback rates, high-risk industry flags, or sudden volume spikes can trigger automatic account reviews or fund holds. If cash flow certainty is critical, a traditional acquirer such as Worldpay or TakePayments is more predictable, though it requires a contract and underwriting.
Is my money safe with a payment provider?
Most card processors and e-money firms safeguard customer funds in ring-fenced accounts rather than as FSCS-protected bank deposits. From 7 May 2026, the FCA tightens this with new rules requiring payments and e-money firms to keep stricter records and reporting on the money they hold for you. It is not the same as FSCS cover, but it raises the bar on how your cash is ring-fenced. We would still sweep large balances to your own bank account.
How we reviewed Best Merchant Service Providers UK 2026
Ranking criteria. We ranked providers on cost, eligibility, features, and ease of access. Cost and protection carry the heaviest weight because these matter across every business type and rarely change with reader preferences.
Data sources. Every provider’s pricing page, terms, and product docs were checked directly in May 2026. No comparison sites, no press releases, no affiliate material. FCA register cross-checked for regulatory status.
Update cadence. We re-verify every provider on this page at least monthly, and whenever a provider changes pricing, eligibility, or terms. The verification date on the page reflects the most recent full review. Some links on this page are affiliate links, see our editorial policy.
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