Best Merchant Accounts for Small Business UK [2026 Compared]

Finding the best merchant account for a small business in the UK means balancing low fees, no contracts, and fast setup – without sacrificing features you’ll need as you grow. We’ve researched and compared 9 merchant account providers specifically for small businesses in 2026, covering transaction rates, hardware costs, contract terms, and settlement times.

Use our free Merchant Account Fee Calculator to compare costs for your specific requirements.

Whether you’re a sole trader taking your first card payment, a market stall looking for a portable reader, or a growing shop processing thousands of transactions a month, this guide breaks down exactly what each provider charges, what you get, and which is best for your size of business.

We compared rates from 9 UK providers, verified pricing directly from each provider’s website, and assessed features across 6 criteria that matter most to small businesses: transaction rates, monthly fees, hardware costs, contract terms, settlement speed, and software features.

Best Merchant Accounts for Small Business – Compared

Square (1.75%, £0/month), SumUp (1.69%, £0/month), and Stripe (1.5% + 20p) are the best no-contract merchant accounts for UK small businesses.

The best merchant account for UK small businesses in 2026 is Square, offering 1.75% flat-rate pricing with no monthly fees, no contracts, and a free POS app. For online-only small businesses, Stripe leads with UK card rates of 1.5% + 20p.

Best No-Contract Merchant Accounts for Small Businesses

No-contract options let you start accepting payments immediately with zero monthly fees: Square from £19, SumUp from £79, and PayPal POS from £29.

No-contract providers are ideal for small businesses – you can start taking card payments with zero long-term commitment, no credit checks, and minimal setup. Based on our comparison, Square offers the best overall value for in-person small businesses, while Stripe leads for online-only sellers.

Why it stands out: Square is more than just a card reader. The free POS app includes stock management, digital receipts, sales analytics, and an online store – a complete small business toolkit bundled into the payment system, with no monthly fees on the free plan.

• In-person rate: 1.75% flat per transaction
• Online rate: 1.4% + 25p (UK cards), 2.5% + 25p (non-UK)
• Monthly fee: £0 (free plan), from £29/month (Plus plan)
• Hardware: Reader from £19 + VAT, Terminal from £149 + VAT
• Settlement: Next-day transfers (free) or instant for 1.5%
• No long-term contracts – cancel any time

Best for: Retailers, market traders, pop-up shops, and small businesses wanting a simple all-in-one payment system with no monthly commitments. Read our full Square UK review for a detailed breakdown.

SumUp is one of the most affordable entry points for accepting card payments in the UK. The pay-as-you-go plan has no monthly fee and a flat 1.69% transaction rate – the lowest among no-contract providers for in-person payments.

• In-person rate: 1.69% (PAYG) or 0.99% with Payments Plus (£19/month)
• Online rate: 2.50%
• Monthly fee: £0 (PAYG) or £19/month (Payments Plus)
• Hardware: Solo reader from £79 + VAT, Terminal from £135 + VAT
• Settlement: Next-day payouts by 7am including weekends
• No contracts, 30-day money-back guarantee on hardware

Best for: Mobile businesses, sole traders, and low-volume sellers wanting the cheapest per-transaction rate without a monthly fee. If your monthly turnover exceeds £1,900, the Payments Plus plan at 0.99% becomes better value. See our SumUp UK review for the full analysis.

PayPal POS (formerly Zettle) is PayPal’s in-person payment solution for UK businesses. It charges a flat 1.75% on card transactions with no monthly fees, and integrates with your existing PayPal account for a unified view of online and in-store sales.

• Card transaction rate: 1.75%
• PayPal QR code payments: 1.75%
• Invoices and payment links: 2.5%
• Monthly fee: £0 (custom rates available for £10k+/month)
• Hardware: Card reader from £29 + VAT, Terminal from £149 + VAT
• Settlement: 1–2 business days
• No long-term contracts or rental fees

Best for: Businesses already using PayPal for online payments who want a consistent payment ecosystem for in-store sales too. The £29 reader makes it the cheapest hardware option to get started. Read our PayPal POS review for more details.

Stripe is the go-to payment processor for online businesses, powering checkout on thousands of UK websites. Stripe charges 1.5% + 20p for UK cards while Square charges 1.4% + 25p – making Stripe slightly cheaper on transactions over £16.67.

• UK card rate: 1.5% + 20p per transaction
• European cards: 2.5% + 20p
• International cards: 3.25% + 20p
• In-person (Tap to Pay): 1.5% + 10p
• Monthly fee: £0 – pay only when you process transactions
• No contracts, no setup fees
• Settlement: Typically 7 days (customisable)

Best for: Online shops, SaaS businesses, and subscription services that need a reliable payment gateway with strong developer tools. Not the best choice if most of your sales are in person.

Clover is a full POS system with integrated card processing, owned by payment giant Fiserv. It’s particularly strong in hospitality, with features like table management, menu customisation, and staff permissions built into the software.

• Transaction rate: from 1.49% per transaction
• Monthly fees and hardware pricing: quote-based (via authorised UK resellers)
• Hardware range: Clover Flex (portable), Clover Mini (countertop), Clover Station (full POS)
• Built-in inventory, staff management, and loyalty features
• App marketplace for third-party add-ons

Best for: Restaurants, cafes, and hospitality businesses that need a full POS system with table management and kitchen display integration. For a simpler card-only solution, consider Square or SumUp. Read our Clover review for details.

Contract-Based Merchant Accounts for Growing Businesses

Contract-based providers like Dojo (£39.99/month), Takepayments (from 0.28%), and Worldpay (from 0.75%) offer lower per-transaction rates for higher-volume merchants.

Once your small business is processing over £4,000/month in card payments, contract-based providers can save you significantly through lower per-transaction rates. Takepayments offers the lowest domestic card rates (from 0.28%) while Dojo provides the most predictable monthly costs with its Fix Plan at £39.99/month.

Dojo (formerly Paymentsense) takes a unique approach with its Fix Plan: you pay £39.99/month which covers up to £3,999 in monthly card turnover. Go over that and you pay just 1% on the excess. It’s one of the most predictable pricing models on the market.

• Fix Plan: £39.99/month covering up to £3,999 card turnover, then 1% flat on excess
• Flex Plan: Custom negotiated rates for businesses over £100k/year turnover
• Hardware: Terminal purchase from £79, or rental from £15/month (Flex Plan only)
• Tap to Pay on iPhone: £0 hardware cost
• Settlement: Next-day payouts including weekends
• Contract: 12-month price lock
• Switch incentive: Dojo covers exit fees up to £500 (Fix) or £3,000 (Flex/Pro)

Best for: Growing businesses with monthly card turnover between £2,000 and £4,000 who want predictable costs and fast settlement. If your turnover is under £2,000, a no-contract provider like Square or SumUp is cheaper. Read our Dojo review.

Takepayments is a UK-based provider (part of DNA Payments Group) that tailors pricing to your specific business. Domestic card rates start from as low as 0.28%, making it potentially the cheapest option for businesses with high card turnover – but you’ll need a personalised quote.

• Domestic card rate: from 0.28% (bespoke, depends on turnover and card mix)
• Business/corporate cards: 1.8%–2.5%
• Monthly fee: from £25/month (includes terminal rental)
• Hardware: Rented, not purchased – setup fee £0
• Settlement: Next-day
• Contract: 12 months (shorter than industry-standard 18–36 months)

Best for: Established businesses processing higher volumes who want the lowest possible per-transaction rates and don’t mind a short-term contract. Read our Takepayments review for details.

Worldpay is one of the UK’s largest and longest-established payment processors. Its Simplicity plan offers a starting rate of 0.75% + 5p per transaction from £17.50/month – competitive for businesses with higher turnover that can justify the monthly fee.

• Simplicity plan: from 0.75% + 5p per transaction
• Monthly fee: from £17.50/month
• Custom pricing available for higher-volume businesses
• Supports in-person, online, and phone payments
• Terminals available (pricing quote-based)

Best for: Established businesses processing high volumes across multiple channels who can benefit from Worldpay’s negotiated rates. See our Worldpay review.

Barclaycard Payments offers merchant services backed by one of the UK’s largest banks. Their representative debit card rate of 0.7% + 3p is competitive, though your actual rate will be tailored based on your business profile.

• Debit card rate: from 0.7% + 3p (representative)
• Credit card rate: from 2.05% + 3p (representative)
• Monthly fee: Quote-based (includes reader rental and support)
• Hardware: Card reader rental included – no upfront purchase
• Contract-based with cancellation fees for most plans

Best for: Businesses already banking with Barclays who want everything under one roof. Compare your quoted credit card rate carefully against no-contract options before committing.

More merchant account guides: Read our in-depth reviews of Tide, Revolut, Tyl by NatWest, Stripe, and Elavon. Need a provider that doesn’t run credit checks? See no credit check merchant accounts. For online-only payments, compare virtual terminals.

How to Choose a Merchant Account for Your Small Business

Match your provider to your turnover: under £5,000/month choose no-contract PAYG, over £10,000/month negotiate contract rates for significantly lower per-transaction costs.

Choose a no-contract provider if your small business processes under £2,000/month or you need flexibility. Choose a contract-based provider if you process over £4,000/month and want the lowest per-transaction rates.

Monthly transaction volume. If you process under £2,000/month, no-contract providers like Square or SumUp almost always work out cheaper. Above £4,000/month, contract-based providers like Takepayments or Worldpay offer significantly lower per-transaction rates.

How you sell. In-person businesses need card readers or terminals. Online-only businesses should look at Stripe. Multi-channel businesses selling both online and in-store need a provider that supports both – Square, Worldpay, and Clover all handle this well.

Contract flexibility. New businesses and seasonal traders should avoid long-term contracts. No-contract providers let you scale up or down without penalties. Established businesses confident in their volumes can unlock better rates with a 12-month commitment.

Settlement speed. How quickly you get paid matters for cash flow. Square, SumUp, and Dojo offer next-day settlement. Stripe’s standard 7-day settlement may not suit businesses that rely on fast cash flow.

Hardware costs. Compare upfront purchase prices (Square from £19, SumUp from £79, PayPal POS from £29) against monthly rental fees (Takepayments from £25/month, Barclaycard included in contract). Purchasing is cheaper long-term if you keep the device for 12+ months.

PCI compliance. All card-accepting businesses must comply with PCI DSS. Most providers in this guide handle PCI compliance for you – but check whether there’s an additional fee, especially with contract-based providers.

For more detail, see our guide to credit card machine costs.

Merchant Account vs Payment Facilitator: What’s the Difference?

Payment facilitators like Square and Stripe combine gateway and merchant account with instant setup, while traditional merchant accounts require underwriting but offer lower rates.

A merchant account is a dedicated bank account for processing card payments, offered by traditional providers like Worldpay, Barclaycard, and Takepayments. You go through underwriting and get rates tailored to your business.

A payment facilitator (like Square, SumUp, Stripe, and PayPal POS) processes payments under their own merchant account on your behalf. You sign up, buy a reader, and start taking payments immediately – no credit checks or waiting periods.

Which is right for you? Payment facilitators are better for businesses under £10,000/month in card turnover. Above that threshold, a traditional merchant account typically saves money through negotiated rates – but comes with longer setup times, contracts, and less pricing transparency.

Last updated: February 2026. Rates and pricing sourced directly from provider websites and verified independently. Rates may vary based on your business type, volume, and card mix. See our individual Worldpay, Dojo, Clover, Square, SumUp, PayPal POS, and Takepayments reviews for full details.

Emma Clarke

Technology & Payments Specialist

Emma covers the full range of business technology, including EPOS systems, merchant accounts, telecoms, and web tools. Her experience as a retail systems consultant helps businesses choose the right digital solutions to improve efficiency and sales.

Reviewed by

Sarah Mitchell

B2B Commerce & Finance Reviewer