UK checkout in 2026 by the numbers
Roughly 75% of UK e-commerce transactions now happen on mobile. Apple Pay and Google Pay together account for over 40% of mobile checkouts. Buy-Now-Pay-Later (BNPL) usage has plateaued but remains around 20% of fashion and home purchases. Card-only checkouts in this market are quietly losing 15–25% of would-be conversions.
The minimum viable payment stack
- Apple Pay & Google Pay — non-negotiable for mobile-first UK D2C
- Visa, Mastercard, Amex via Stripe or Adyen
- Klarna or Clearpay for fashion, home, electronics, anything over £50
- PayPal for international and older audiences
- Shop Pay (if on Shopify) — the highest-converting express checkout in the world
BNPL: opportunity, with caveats
BNPL increases average order value by 30–50% and conversion by 10–20% for fashion, electronics and home brands. But the FCA tightened consumer-credit rules in 2025; UK BNPL providers are now fully regulated, and brands must prominently display affordability information. Compliance, not optionality, is the 2026 watchword.
Reducing checkout abandonment
- One-page checkout, not multi-step
- Express checkout buttons (Apple Pay, Shop Pay) above the form, not below
- Auto-fill address from postcode
- No surprise fees — UK consumers HATE shipping costs revealed at the final step
- Trust signals: visible delivery time, returns policy, secure-payment badges
- Guest checkout always available — never force account creation
What fees actually cost you
Stripe is roughly 1.5%+£0.20 for UK cards, 2.5%+£0.20 for non-EEA. Apple Pay and Google Pay take no extra cut — they ride your existing Stripe rails. Klarna takes 3–5% but lifts AOV and conversion enough to more than pay for itself. PayPal is 2.9%+£0.30 — increasingly the most expensive option without commensurate benefit.
Key Takeaway
UK e-commerce conversion in 2026 is decided at checkout, on mobile, in seconds. Get Apple Pay, Google Pay and BNPL live, simplify the form, kill surprise fees. The conversion lift more than pays for the integration work.