International merchant-services information · UK · Europe/EEA · USA · CanadaInformation checked against the site's provider dataset: 15 Sep 2026
Merchant Atlas

Online Payment Systems UK: Guide for Businesses

An online payment system can include checkout software, a payment gateway, payment processing, fraud controls, reporting and settlement. The exact combination depends on the provider.

Main routes

  • Hosted checkout pages.
  • Embedded website checkout.
  • Payment links and pay-by-link.
  • Invoice payments.
  • Recurring billing.
  • Direct Debit for eligible recurring use cases.

Choose around customer behaviour

Consider how customers discover your business, where they complete payment, which devices they use and whether purchases are one-off or recurring.

Compare the complete system

Review fees, supported methods, settlement, reporting, refunds, disputes, fraud controls and integration effort together. This gives a more realistic view than comparing a single processing rate.