Payment Processing for Retail at a Glance
UK retail businesses need reliable in-person card acceptance, ideally integrated with a stock management system. The key variables are transaction volume, card mix, whether you trade from a single fixed location or multiple sites, and whether you need an integrated EPOS or just a standalone reader. This guide covers the main payment processing options for UK retail businesses in 2026.
- Square for Retail — Best integrated EPOS and payments for small-to-medium retailers
- SumUp Air — Best standalone reader for low-volume retail
- Dojo Go — Best for volume-based rate savings
- Lightspeed Retail — Best for multi-location retail with complex inventory
- TakePayments — Best managed service for growing retail businesses
Retail Payment Providers Compared
| Provider | Transaction fee | Monthly cost | EPOS integration | Stock management | Contract |
|---|---|---|---|---|---|
| Square for Retail | 1.75% | From £49 | Native | Full inventory | None |
| SumUp Air | 1.69% | £0 | Basic app | Basic | None |
| Dojo Go | From 1.2% | £20–25 | Semi (via API) | Via EPOS partner | 12 months min |
| Lightspeed Retail | Negotiated | From £69 | Native | Advanced multi-location | Annual |
| TakePayments | Quoted on volume | From £15 | Semi (via API) | Via EPOS partner | 12–36 months |
Rates correct as of May 2026. Dojo, Lightspeed, and TakePayments rates are negotiated — contact providers for quotes.
Best Payment Processing Options for Retail
Best Integrated System for SME Retail: Square for Retail
Square for Retail (£49/month) combines card processing at 1.75% with a full inventory management system: product catalogue, stock levels, low-stock alerts, purchase orders, and supplier management. It runs on Square’s own hardware (Reader, Stand, or Register) or on iPads with a card reader. No long-term contract. Settlement next business day.
For a single-site independent retailer — a clothing boutique, gift shop, or bookshop — Square for Retail covers everything in one subscription without needing separate EPOS software and a separate acquirer. Above £20,000/month the flat rate becomes expensive compared with negotiated alternatives, but the simplicity saves time and management overhead.
View Square for Retail on Square →
Best Standalone Reader for Low-Volume Retail: SumUp Air
For retail businesses taking under £3,000 per month by card — a small craft shop, a gallery, or a seasonal pop-up — SumUp Air at £39 hardware and 1.69% per transaction is the simplest and cheapest option. No monthly fee, no contract. The SumUp app covers basic reporting and product listing. Settlement within 1–3 business days.
Best for Volume Rate Savings: Dojo Go
For retailers processing £10,000 or more per month, Dojo Go’s negotiated rate (typically starting around 1.2%) saves money compared with flat-rate providers despite the £20–25 monthly terminal rental. Dojo semi-integrates with Epos Now, Lightspeed, and other EPOS platforms. Settlement next business day. Minimum 12-month contract.
Best for Multi-Location Retail: Lightspeed Retail
Lightspeed Retail (from £69/month) provides centralised inventory management across multiple locations: a single product catalogue, inter-store stock transfers, and consolidated reporting. It is the strongest option for small retail chains (two to ten sites) that need to see stock across all locations from one dashboard. Payment processing via Lightspeed Payments at negotiated rates, or via Dojo semi-integration.
Best Managed Service: TakePayments
TakePayments provides portable and countertop terminals on monthly contracts with negotiated rates based on volume. A UK account manager handles setup and ongoing support. For retailers who want to hand the payment infrastructure to a specialist, TakePayments is a strong option. Rates below 1% are achievable for businesses processing £30,000+ per month. Contracts run 12–36 months.
View TakePayments for retail →
Key Retail Payment Considerations
EPOS Integration
Integrated payment processing — where the terminal receives the total from the EPOS automatically, no re-keying — reduces errors and speeds up the checkout. Square for Retail and Lightspeed provide full integration (one system). Dojo and TakePayments semi-integrate with third-party EPOS via API. If you already have an EPOS you are happy with, semi-integration is the lower-disruption option. Starting from scratch, a fully integrated system is simpler.
Contactless and Mobile Payments
The UK contactless limit is £100. Apple Pay and Google Pay have no contactless limit (authentication handled by the customer’s device). All major UK card readers support both. For high-value retail (jewellery, electronics, furniture deposits), ensuring chip and PIN works reliably is more important than contactless speed.
Online Sales Integration
If you sell online as well as in-store, consider whether your payment provider covers both channels. Square Online connects Square’s in-store POS with an e-commerce store, with shared inventory. Lightspeed has an e-commerce module. For retailers using Shopify or WooCommerce, their payment gateway can also cover in-store via Shopify POS or WooCommerce POS integrations.
Retail Payment Fees and Costs to Watch
The flat-rate vs IC+ crossover. At £10,000/month, Dojo’s 1.2% + £25 rental (£145 total) beats Square’s 1.75% (£175). At £5,000/month, Square’s £87.50 beats Dojo’s £85 (barely) — the monthly fee tips the balance. Run your own numbers based on your volume.
Refund policy. Square returns the transaction fee on refunds. SumUp does not. For fashion retail or any business with frequent returns, this is worth factoring in.
Hardware lifecycle. Card reader hardware typically lasts three to five years before replacement. Factor replacement cost into total cost of ownership comparisons, particularly for multi-terminal setups.
Frequently Asked Questions
For a small shop taking under £5,000 per month by card: SumUp Air (1.69%, £39 hardware, no monthly fee) or Square Reader (1.75%, £19 hardware, free stock management app). Both have no contracts. For a shop needing full inventory management, Square for Retail at £49/month is the most complete single-subscription option at this scale.
Not legally, but an EPOS system — even the free tier of Square or SumUp — makes stock management and end-of-day reconciliation significantly easier as soon as you have more than 20–30 products. HMRC increasingly expects digital records. A basic EPOS with integrated card payments is the practical standard for UK retail, even at small scale.
Yes. Square covers in-store (via Square POS) and online (via Square Online). Stripe covers online (via API or Stripe Checkout) and in-person (via Stripe Terminal). Shopify Payments covers both if you use Shopify. Using a single provider simplifies reconciliation — all transactions appear in one dashboard. The trade-off is that no single provider is always the best rate in both channels, particularly at higher volumes.
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