UK Payment Methods for Online Sellers 2026: Stripe, PayPal, Klarna, Open Banking & Card Schemes Guide

The 2026 UK Payment Method Landscape at a Glance

No European country offers as broad a rail menu as the UK. The chart below summarises the six headline providers we deep-dive into next — bookmark it as you read.

1. The UK Payment Landscape — Cards Dominate, Mobile Grows

A Card-First Economy

The United Kingdom has, by some margin, the most card-mature consumer economy in Europe. UK Finance's annual Payment Markets report puts card payments at more than 80% of all retail spend by volume and value combined; cash dropped below 15% for the first time in 2023 and has continued sliding through 2026–2026. The contrast with Germany (where cash and SEPA direct debit still dominate) or Poland (where BLIK leads) is stark. For online sellers, the practical implication is that any UK checkout that does not accept Visa, Mastercard and Amex is leaving 80%+ of the addressable market on the table from day one.

Mobile Wallets Reshape the Stack

The other defining trend is the rise of tokenised mobile wallets. Apple Pay launched in the UK in July 2015 with Visa, Mastercard, Amex and the major high-street banks live from day one. Google Pay (originally Android Pay) followed in May 2016. By 2026, around 65% of UK mobile e-commerce checkouts are completed through one of the two wallets, with the remaining 35% split between manually entered cards (declining), PayPal (steady) and Klarna / Clearpay BNPL (growing in fashion, declining in electronics post-regulation). The contactless tap limit rose from £45 to £100 in October 2021 and has stayed there.

BNPL: From Wild West to Regulated

Buy Now, Pay Later — led by Klarna and Clearpay — grew almost unchecked between 2018 and 2023. The Financial Services and Markets Act 2023 brought BNPL under FCA regulation, and the secondary legislation finalised in 2024–2026 means every Pay in 3 or Pay in 30 product in 2026 must perform affordability checks, share data with credit reference agencies and comply with Consumer Duty. Volumes have stabilised rather than collapsed; the market has matured.

Open Banking: The Quiet Disruptor

Most consumers do not know they are using Open Banking, but more than 11 million UK adults initiated at least one Open Banking payment in 2026, up from under 5M in 2023. The Competition and Markets Authority's 2017 retail banking order mandated the CMA9 banks to expose APIs; the Open Banking Implementation Entity (OBIE) was the delivery body, succeeded by Open Banking Limited from 2024 under joint FCA / PSR oversight. GoCardless Instant Bank Pay and TrueLayer dominate merchant integrations. The economic appeal for sellers is simple: no interchange, no chargebacks, ~0.5–1% per transaction, instant settlement on Faster Payments.

2. Stripe UK — Developer-Friendly, the Default for SaaS

From Limerick Farmhouse to Global Payments Giant

Stripe was founded in 2010 by Irish brothers Patrick and John Collison as a developer-first answer to clunky legacy merchant accounts. Stripe opened its London office in 2013 and now runs one of its largest engineering hubs in London. The UK entity is authorised by the FCA as an Electronic Money Institution (EMI), reference 900461, with Stripe Payments UK Ltd holding the regulated relationship for British merchants.

Why Stripe Wins for Modern Checkouts

Stripe's appeal is a combination of developer experience (gold-standard API since 2011), method breadth (Klarna, Apple Pay, Google Pay, Bacs DD, SEPA, Open Banking all native) and checkout components (Stripe Elements, Payment Element, Stripe Link) that ship SCA-compliant out of the box. For SaaS, marketplaces and modern D2C brands, Stripe is the default; Adyen, Worldpay and Barclaycard compete in traditional retail.

Stripe UK Fees 2026

Stripe publishes flat-rate pricing in the UK, with explicit cross-border tiers reflecting post-Brexit interchange changes:

On top of these headline rates, Stripe adds 1.5% for premium cards (commercial, world, world elite), charges £20 per disputed chargeback (refunded if you win), and offers volume-based custom pricing above roughly £80K monthly. American Express runs separately at 2.5% + 20p for UK Amex acceptance.

Stripe Link, Radar, Tax, Connect

Stripe's deeper product suite is what keeps merchants on the platform once they outgrow basic acceptance: Stripe Link (saved payment details across the Stripe network — converts 9× faster than guest checkout), Stripe Radar (ML fraud detection, included from Standard tier), Stripe Tax (auto-calculates UK VAT, EU OSS and US sales tax), and Stripe Connect (the marketplace splits engine used by Substack, Shopify, Lyft and others). For UK sellers building anything more than a single-merchant shop, Connect is the standard infrastructure choice.

3. PayPal UK — 35M+ Accounts, the Classic Trust Signal

The Veteran of Online Payments

PayPal entered the UK in 2003 following its eBay acquisition and quickly became the default online payment method. After spinning out from eBay in 2015, PayPal Europe operates the UK business via PayPal (Europe) S.à r.l. et Cie, S.C.A. with the UK consumer relationship regulated by the FCA. By 2026 PayPal counts more than 35 million UK account holders — roughly one in two British adults.

Why PayPal Still Matters

PayPal's 2.9% + 30p rate is roughly twice Stripe's UK card pricing — yet most UK merchants still offer PayPal alongside Stripe. The reason is conversion psychology. UK trust surveys consistently rank PayPal among the most trusted online brands; for first-time buyers, the PayPal logo functions as an insurance policy and checkout completion typically rises 15–25% when PayPal is offered alongside cards.

PayPal Fees Stack 2026

• UK consumer card / PayPal balance — 2.9% + 30p (the headline rate)
• EEA cross-border — 3.9% + fixed fee in transaction currency
• International — 4.4% + fixed fee + 2.5–4% FX margin
• PayPal Pay in 3 (UK BNPL, FCA-regulated since 2026) — 2.9% + 30p (same as card)
• Micropayments tier — 5% + 5p for transactions under £5 (subscriptions, in-app)
• Chargebacks — £14 dispute fee, refundable if won

One Touch and Express Checkout

PayPal One Touch lets returning UK shoppers complete checkout in a single click — no password, no card re-entry — provided they have opted in on a previous purchase on any PayPal-integrated site. By 2026 roughly 18 million UK shoppers use One Touch. The conversion uplift is particularly pronounced on mobile, where typing a 16-digit PAN is universally hated.

4. Klarna UK — 12M+ BNPL Users, Now FCA-Regulated

The Swedish Giant Comes to the UK

Klarna entered the UK in 2014 with its signature "Pay in 3" interest-free instalment product. Founded in Stockholm in 2005 by Sebastian Siemiatkowski, Niklas Adalberth and Victor Jacobsson, Klarna by 2026 counts more than 12 million active UK users, processing volumes through 30,000+ UK merchants including ASOS, JD Sports, H&M and John Lewis.

2026: The FCA Regulation Tipping Point

For most of its UK lifespan, Klarna's Pay in 3 sat in a regulatory grey zone — interest-free credit was exempt from the Consumer Credit Act 1974. The Financial Services and Markets Act 2023 closed this gap. The secondary legislation took effect through 2026, requiring BNPL providers to:

• Perform full affordability checks against credit reference agencies on every purchase
• Share BNPL activity with Experian, Equifax and TransUnion (so missed Pay in 3 instalments now affect mortgage applications)
• Comply with Consumer Duty requirements on fair treatment, vulnerability and outcomes
• Apply FCA financial promotions rules — every "Klarna it" banner now requires risk warnings
• Provide Section 75-style consumer protection on disputes

For merchants, the operational impact has been modest: integration unchanged, conversion rates stable, but advertising copy must include FCA-mandated warnings. Klarna absorbs all the underlying credit and compliance overhead.

Klarna Products Available to UK Merchants in 2026

• Pay in 3 — 3 interest-free instalments over 60 days (the flagship product, 70%+ of UK Klarna volume)
• Pay in 30 — pay nothing for 30 days, then settle in full (popular for fashion try-on)
• Klarna Financing — 6 to 36 monthly instalments with interest (electronics, furniture, high-ticket)
• Pay Now — single-click checkout via the Klarna wallet (competes with PayPal One Touch)

Klarna UK Merchant Fees 2026

The economics for merchants are favourable in fashion and high-AOV categories: the average basket value when Klarna is offered runs 30–55% higher than card-only baskets, and the absolute fee differential is often recouped on the first incremental sale.

5. Open Banking — FCA-Regulated, GoCardless & TrueLayer Leading

How the UK Became the Open Banking Pioneer

The UK's Open Banking framework began with the Competition and Markets Authority (CMA) retail banking order of August 2017, which compelled the nine largest UK current-account providers (the "CMA9" — Barclays, HSBC, Lloyds, RBS, Santander, Nationwide, Danske, AIB, BoI) to expose standardised APIs for Account Information Services (AIS) and Payment Initiation Services (PIS). The Open Banking Implementation Entity (OBIE) was the delivery body, supervised by the FCA. From 2024, OBIE's successor Open Banking Limited operates under joint FCA / PSR oversight.

Why Sellers Should Care

Open Banking payments are account-to-account (A2A) — funds move directly from the shopper's bank account to the merchant's bank account, settling on the Faster Payments Service (FPS) rail in seconds. There is no card scheme involved, which means:

• No interchange — Visa and Mastercard fees do not apply
• Total cost ~0.5%–1% per transaction (versus 1.5–3% on cards)
• Effectively zero chargebacks — the payment is authorised by the shopper's bank's strong customer authentication; merchants cannot be reversed via card scheme rules
• Instant settlement on Faster Payments — the merchant sees funds in their bank in seconds, not in T+1 or T+2
• SCA is built into the bank's flow — no separate 3DS2 layer required

The Two-Provider UK Reality

Two providers dominate UK Open Banking PIS for online checkout:

• GoCardless Instant Bank Pay — launched 2022, layered on top of GoCardless's existing Bacs Direct Debit business; the natural choice for SaaS and subscription companies already using GoCardless
• TrueLayer — founded 2016 in London by Francesco Simoneschi and Luca Martinetti; pure-play Open Banking infrastructure used by Coinbase UK, Revolut and many fintechs

Stripe and Adyen also expose Open Banking as a payment method but typically route through TrueLayer or a similar PIS provider under the hood.

Open Banking UK Fees 2026

For high-ticket categories (electronics, furniture, B2B invoicing) where individual transactions sit between £250 and several thousand pounds, Open Banking is now a default option offered at checkout — typically saving merchants 1.5–2 percentage points per transaction relative to cards, with no chargeback risk.

6. Apple Pay & Google Pay — The Mobile Checkout Default

Tokenisation: Why Wallets Win

Apple Pay and Google Pay are not separate networks — they are tokenisation layers on top of Visa, Mastercard and Amex rails. When a shopper adds a card to the wallet, the scheme issues a Device Account Number (DAN) stored in the device's secure enclave. The merchant never sees the underlying PAN; chargebacks based on stolen card data become practically impossible.

UK Adoption Curve

Apple Pay launched in the UK on 14 July 2015 with day-one Barclays, HSBC, Nationwide, NatWest and Santander support. Google Pay (Android Pay) followed on 18 May 2016. Adoption accelerated through the 2020–2022 pandemic as contactless replaced cash. By 2026, around 65% of UK mobile e-commerce checkouts use one of the two wallets, with the £100 in-store contactless cap (raised from £45 in October 2021) reinforcing the habit.

SCA Built In

Crucially for sellers, Apple Pay and Google Pay satisfy PSD2 / PSR 2017 Strong Customer Authentication inherently. The Touch ID, Face ID or device PIN that the shopper uses to authorise the payment counts as the second factor. As a result, Apple Pay / Google Pay transactions do not need to trigger a separate 3DS2 challenge — the SCA box is already ticked. Combined with tokenisation, this lifts conversion (no challenge friction) and lowers chargebacks simultaneously.

Merchant Costs

There is no Apple Pay or Google Pay fee on top of card processing. Stripe, Adyen, PayPal, Square, Worldpay and Klarna all accept wallet payments at the same rate as the underlying card. The economic argument is simple: same fees, higher conversion, lower chargebacks. Every modern UK checkout should expose both wallets prominently at the top of the payment method list — sales data consistently shows wallet-first checkout pages convert 8–14% better than card-first.

7. UK Card Schemes — Visa, Mastercard, Amex Up Close

Visa and Mastercard Duopoly

Two scheme networks underpin the British card economy. Visa Europe Ltd (acquired by Visa Inc. in 2016 for €18.4B) and Mastercard Europe SA together carry approximately 90% of UK card spend — Visa with roughly 50% share, Mastercard 40%.

American Express — The Premium Tier

American Express entered the UK in 1963 and today serves around 5–7% of UK card spend with a heavy concentration in business expenses and premium cards (Platinum, Gold, BA). Amex operates as a closed loop — its own issuer, acquirer and network — and charges higher merchant fees. Through OptBlue most UK merchants now accept Amex, though luxury and hospitality occasionally surcharge.

Interchange — The Hidden Cost Structure

The UK's Interchange Fee Regulation (IFR) — onshored from EU Regulation 2015/751 — caps consumer card interchange at 0.2% for debit and 0.3% for credit. Acquirer markup (Stripe, Adyen, Worldpay) layers on top, plus scheme fees from Visa / Mastercard. The all-in MSC for a UK consumer Visa debit on Stripe is ~1.5% + 20p; on premium rewards it can reach ~3.5%. Commercial cards are uncapped at 1.5–2.5% interchange.

The Post-Brexit Cross-Border Premium

In October 2021 and again in 2022, Visa and Mastercard raised cross-border interchange between the UK and EEA from 0.2% / 0.3% to 1.15% / 1.5% on online consumer transactions. The PSR market review MR22/2.6 found this unjustified in 2024; remedies are expected in 2026–2027. For now, UK merchants accepting EEA-issued cards pay roughly 1 pp more than for domestic cards.

8. Faster Payments, Bacs & CHAPS — UK Settlement Rails

Faster Payments Service — The Instant Rail

Faster Payments Service (FPS) launched in May 2008 and is now operated by Pay.UK (the consolidated retail payments operator formed in 2017 from FPSL, Bacs Payment Schemes and the Cheque & Credit Clearing Company). FPS handles single-immediate payments, standing orders and forward-dated payments, with a per-transaction limit currently set at £1 million. Settlement is in seconds, 24/7/365. By 2026 Faster Payments processes over 4 billion transactions per year with a total value above £3.7 trillion — making it one of the highest-volume instant rails globally.

Bacs — The Workhorse for Recurring

Bacs (Bankers' Automated Clearing Services) is the UK's batched 3-working-day rail. It carries the vast majority of salary payments, supplier transfers and Direct Debit collections. For online sellers, Bacs matters mainly as the rail under GoCardless Direct Debit — the standard mechanism for SaaS subscriptions, gym memberships, charity giving and any recurring B2B billing. Bacs is cheap (typically <1% all-in), the underlying mandate persists indefinitely once set up, and failed-payment rates are far lower than failed cards.

CHAPS — High-Value Same-Day

CHAPS (Clearing House Automated Payment System) is the same-day high-value rail operated directly by the Bank of England. CHAPS is the British equivalent of TARGET2 in the Eurozone — used for property purchases, large B2B settlements, and time-critical wholesale transfers. Per-transaction fees are typically £20–£30; commercial banks charge customers higher (£25–£35 retail). For online sellers, CHAPS comes up only for occasional six-figure invoices or property-related transactions.

No SEPA Domestically — But SEPA for EU Cross-Border

A common misconception is that the UK left SEPA when it left the EU. In fact, the European Payments Council readmitted the UK to the SEPA geographical scope on 8 March 2019, with effect after Brexit, on a third-country basis. SEPA Credit Transfer (SCT) and SEPA Direct Debit (SDD) between UK and EU IBANs continue to work in EUR. SEPA Instant in EUR is supported by some UK banks (Revolut, Wise, certain Barclays accounts) but is not the domestic UK rail. For domestic GBP, the UK uses Faster Payments, Bacs and CHAPS — not SEPA.

Practical UK Rails Stack 2026

• Open Banking pay-ins → settle to your bank via Faster Payments in seconds
• Card pay-ins (Stripe, Adyen) → typically T+1 or T+2 to your bank, also via FPS
• SaaS / subscription billing → GoCardless Bacs Direct Debit, T+3
• Cross-border EUR → SEPA Credit Transfer to EU suppliers, SEPA DD for EU subscribers
• High-value B2B → CHAPS for transactions above ~£100K with same-day settlement requirements

9. 3DS2 SCA Compliance — PSD2 Onshored to UK Law

From PSD2 to PSR 2017 to Onshored Regulation

Strong Customer Authentication originates in the EU's Second Payment Services Directive (PSD2), transposed into UK law by the Payment Services Regulations 2017 (PSR 2017). Post-Brexit, the UK onshored both the directive and the related Regulatory Technical Standards (RTS) on SCA. The Financial Conduct Authority extended the original September 2019 enforcement deadline twice; full SCA enforcement in the UK applied from 14 March 2022 and remains the governing standard in 2026.

What SCA Requires

Every online card payment above €30 / £25 must be authenticated with two of three factors:

• Knowledge — something the shopper knows (password, PIN)
• Possession — something the shopper has (phone, hardware token)
• Inherence — something the shopper is (biometric — fingerprint, face)

In practice the SCA check is delivered through 3D Secure 2 (3DS2): the issuing bank either silently verifies the transaction using rich device and behavioural signals ("frictionless flow") or prompts the shopper to confirm via their banking app or a one-time SMS code ("challenge flow"). The frictionless rate on a well-configured Stripe checkout in 2026 is 85–92% — the issuer accepts the silent risk signals and lets the transaction through without bothering the shopper.

SCA Exemptions That Matter

The PSR 2017 RTS permits several exemptions that, used wisely, lift conversion materially:

• Low-value transaction (LVT) — under €30 / ~£25, exemptable up to a cumulative threshold
• Transaction Risk Analysis (TRA) — issuer-side risk scoring; available up to €500 if acquirer fraud rate is below 0.13%, up to €250 if below 0.06%, up to €100 if below 0.01%
• Trusted beneficiary — the shopper has whitelisted your merchant in their banking app
• Recurring transactions (same amount, same merchant) — SCA only on initial
• Merchant-initiated transactions (MIT) — once a mandate is set up, follow-up captures are exempt

Stripe Radar, Adyen RevenueProtect, Worldpay's Issuer Insights and PayPal's risk engines all apply these exemptions automatically. Manual exemption flagging is generally not recommended in 2026 — the schemes' machine-learning routing outperforms hand-tuned rules.

Real-World SCA Pass Rates

A well-implemented UK Stripe Payment Element with 3DS2 baked in achieves SCA pass rates around 97–98%. The remaining 2–3% are challenge-flow failures (shopper abandons during 3DS challenge) or hard issuer declines (insufficient funds, stolen card flags). Apple Pay and Google Pay, as noted, are inherently SCA-compliant and bypass the challenge flow entirely.

10. B2B Invoice Payments — Wise Business & GoCardless

Why B2B Payments Are Different

B2B online sellers — wholesalers, SaaS, agencies, distributors — face fundamentally different payment economics than B2C retailers. Average transaction values are higher (£500–£50,000 typical), purchases are scheduled rather than impulsive, and the underlying instrument shifts away from consumer cards toward bank transfers, Direct Debit and invoice-with-net-terms. Card acceptance for £10K B2B invoices is uneconomic at 1.5%+ when bank transfer is free.

Wise Business — The Multi-Currency Stack

Wise Business (formerly TransferWise Business) was founded in 2011 by Estonian entrepreneurs Taavet Hinrikus (Skype's first employee) and Kristo Käärmann. The company listed on the LSE in July 2021 (ticker: WISE) and today serves over 16 million customers globally, with the UK as its single largest market. For UK B2B sellers, Wise Business offers:

• Local IBANs in 9+ currencies — GBP, EUR, USD, AUD, NZD, CAD, SGD, HUF, RON
• Mid-market FX rates with ~0.4% margin versus high-street banks' 2–4%
• Batched supplier payouts — pay 100 suppliers in one CSV upload
• Xero / QuickBooks / Sage integrations — reconciliation auto-matches invoices
• FCA-authorised EMI — Wise Payments Limited, reference 900507

GoCardless — Recurring B2B Direct Debit

GoCardless was founded in 2011 by Hiroki Takeuchi, Matt Robinson and Tom Blomfield (later of Monzo). The company specialises in recurring bank-to-bank collections and has scaled across Bacs (UK), SEPA (EU), Autogiro (Sweden), BECS (Australia, NZ), ACH (US) and PAD (Canada). For UK B2B sellers with recurring invoice cycles (monthly retainers, annual subscriptions, quarterly licence renewals) GoCardless Bacs Direct Debit is the standard. Costs are roughly 1% + 20p per collection, capped at £4 — a fraction of card processing on the same revenue.

Invoice Payment Stack 2026

The 2026 UK B2B payment stack typically looks like this:

• One-off large invoices → Faster Payments bank transfer (free, instant)
• One-off invoices to EU customers → SEPA Credit Transfer in EUR; settle to your Wise EUR IBAN
• Recurring monthly → GoCardless Bacs Direct Debit
• Recurring EU monthly → GoCardless SEPA Direct Debit
• Optional card fallback → Stripe Invoicing for customers who insist on Amex points
• FX-heavy multi-currency → Wise Business + Revolut Business for treasury

Fee Comparison Table 2026 — All UK Payment Rails

The single most useful artefact for choosing your UK payment stack is a side-by-side fee view. The table below summarises 2026 fee bands and the typical use case for each rail.

Rail / Provider	UK Consumer	EEA / Cross-Border	International	Best For
Stripe	1.5% + 20p	2.5% + 20p	3.25% + 20p	SaaS, D2C, marketplaces
PayPal	2.9% + 30p	3.9% + fixed	4.4% + 4% FX	Trust signal, One Touch checkout
Klarna Pay in 3	2.49% – 3.29% + 20p	same	same	Fashion, lifestyle, high AOV
GoCardless (Bacs DD)	1% + 20p (cap £4)	1% + 20p (SEPA)	n/a	SaaS recurring, B2B subscriptions
Open Banking (TrueLayer)	0.5% – 1.0%	limited	n/a	High-ticket, B2B, account top-ups
Apple Pay / Google Pay	Same as underlying card — no additional fee, SCA inherent			Mobile-first checkouts (65% share)

Reading the table: Open Banking and GoCardless are the cheapest rails, but they suit specific use cases (high-ticket B2C / recurring B2B). Stripe is the all-rounder for cards. PayPal's higher fee is justified by its trust-signal conversion uplift. Klarna's fee is offset by basket-size uplift in fashion. Apple Pay / Google Pay should be on by default on every checkout — they cost nothing extra and convert better.

UK Legal Framework 2026 — What Changes

FCA Supervision Architecture

The Financial Conduct Authority (FCA) is the UK's principal payments regulator, with the Payment Systems Regulator (PSR) handling competition and access in the payment systems (Faster Payments, Bacs, CHAPS, LINK, Visa, Mastercard) and the Prudential Regulation Authority (PRA) covering prudential supervision of larger banks. Every payment service provider — Stripe Payments UK Ltd, PayPal (Europe) S.à r.l., Klarna Bank AB (publ) UK branch, GoCardless Ltd, Wise Payments Limited — operates under FCA authorisation. The public register at register.fca.org.uk is the canonical source of truth for verification.

Payment Services Regulations 2017

The Payment Services Regulations 2017 (PSR 2017) implement PSD2 into UK law. PSR 2017 sets out:

• Authorisation requirements for Payment Institutions (PIs) and Electronic Money Institutions (EMIs)
• Strong Customer Authentication obligations (the SCA rules detailed in Section 9)
• Access to payment systems — non-bank PSPs can access Faster Payments directly
• Account access (Open Banking) — banks must expose AIS and PIS APIs
• Consumer protection — unauthorised transaction refund rights, refund timelines

PSR 2017 has been progressively amended; the most significant 2026-era change is the Authorised Push Payment (APP) reimbursement scheme introduced by the PSR in October 2024, requiring most UK banks to refund APP fraud victims up to £415,000 within 5 working days, with the cost shared 50/50 between sending and receiving banks. For online sellers, the APP scheme reduces customer fraud anxiety on bank transfer rails.

Open Banking Governance

The original Open Banking Implementation Entity (OBIE) was funded by the CMA9 banks under the 2017 CMA order and delivered the standards (the OBIE Read/Write API specifications). From 2024, governance has transitioned to Open Banking Limited, operating under a joint FCA / PSR oversight model with broader industry funding and a remit to expand Open Banking into commercial variable recurring payments (cVRP), now central to the 2026 subscription roadmap.

Consumer Duty (FCA PRIN 2A)

The FCA's Consumer Duty, in force from 31 July 2023 for new and existing open products, raises the standard of care every UK financial services firm must apply. It introduces four outcomes (products and services, price and value, consumer understanding, consumer support) and a cross-cutting "act to deliver good outcomes" rule. For payment providers this means clearer disclosure of fees, FX margins, dispute timelines and refund rights — and for BNPL providers brought into scope in 2026, it underpins much of the affordability and forbearance regime.

Other Layers That Matter

• UK GDPR + Data Protection Act 2018 — payment data is special-category for PII purposes; PCI DSS compliance is layered on top
• Money Laundering Regulations 2017 (as amended) — KYC, sanctions screening, Transaction Monitoring
• Consumer Rights Act 2015 — 30-day right to reject defective goods, longer remedies for digital content
• Distance Selling / Consumer Contracts Regulations 2013 — 14-day cancellation right for B2C online sales
• Section 75 Consumer Credit Act 1974 — joint and several liability of credit card issuers for purchases £100–£30,000 (does not apply to debit cards or BNPL, though BNPL now has analogous protection)

How to Set Up Your UK Payments Stack — 2026 Step-by-Step

1. Choose Your Rail Mix (Decision Tree)

• Mainstream B2C e-commerce → Stripe + PayPal + Apple/Google Pay + Klarna
• High-ticket B2C (£250+ items) → Stripe + Open Banking (GoCardless or TrueLayer)
• SaaS / subscriptions → Stripe Billing + GoCardless Bacs DD fallback
• B2B wholesale / distribution → GoCardless Bacs + Faster Payments + Wise Business
• Fashion / lifestyle → Stripe + Klarna + PayPal (BNPL drives AOV)
• Marketplace / multi-vendor → Stripe Connect + PayPal Commerce Platform

2. FCA Authorisation Path (When Required)

Pure online sellers do not need their own FCA authorisation — Stripe, PayPal, Klarna and GoCardless hold the regulated relationship. You become a Payment Institution only if you handle other people's money (marketplace escrow, fintech, e-money). For most UK e-commerce, the only FCA touchpoint is HMRC's Money Laundering Regulations registration for high-value goods dealers (jewellery, art, precious metals above £10,000 single transactions).

3. PCI DSS Compliance

Card data handling triggers PCI DSS compliance levels:

• SAQ A — fully outsourced checkout (Stripe Checkout, PayPal Smart Buttons) — minimal scope, easy
• SAQ A-EP — your page redirects through PSP iframe — moderate scope
• SAQ D — you touch the PAN — maximum scope, audits required above £6M annual volume

The 2026 default is SAQ A: never let card data flow through your servers, use Stripe Elements / PayPal SDK iframes. Zunapro guides you through the right SAQ at onboarding.

4. SCA / 3DS2 Configuration

Whichever PSP you choose, ensure 3DS2 is set to automatic — let the PSP and the issuing bank decide whether to challenge. Manual SCA flagging in 2026 is a recipe for unnecessary friction. Monitor SCA pass rate per BIN, per device type, per hour of day; Zunapro surfaces anomalies before they bleed revenue.

5. Connect via Zunapro (10-Minute Integration)

1. Sign in to Zunapro and open the UK Payments module
2. Connect each rail — paste API keys / OAuth into the Stripe, PayPal, Klarna, GoCardless, TrueLayer and Wise tiles
3. Map your checkout — Zunapro auto-detects your Shopify / WooCommerce / BigCommerce stack and proposes a checkout layout
4. Enable Apple Pay + Google Pay — single toggle each (domain verification handled automatically)
5. Enable Open Banking — choose GoCardless Instant Bank Pay or TrueLayer; FCA permission is inherited from the PIS provider
6. Go live — first reconciliation cycle completes within 10 minutes; all rails routing through one ledger

UK Payments FAQ 2026