BNPL and Open Banking at a Glance
BNPL and open banking pull in opposite directions: one buys bigger baskets at a premium fee, the other strips processing cost to pennies. We’d treat both as additions to cards, routed by margin, not replacements.
| Method | Typical merchant cost | Settlement | Best for |
|---|---|---|---|
| Buy Now Pay Later | 4.99%–6.00% + flat fee | ~Next working day | High-margin goods, baskets £50–£1,000 |
| Card payments | 1.5%–3.0% + 20–30p | 1–3 working days | Everyday sales, international, in-person |
| Open banking (pay-by-bank) | 0.1%–1% or capped pennies | Instant | B2B invoices, digital goods, low margin |
The headline split is cost versus conversion. Open banking protects your margin and cash flow; BNPL lifts order value but charges for it. Figures verified June 2026.
How BNPL Works for Merchants
BNPL hands the merchant the full sale price upfront, takes a fee, and carries the customer credit risk so a missed instalment is the lender problem, not yours.
You add it through a plugin for Shopify, WooCommerce or Magento, a hosted checkout page, or a direct API. The customer picks BNPL, passes a real-time affordability check, and the order completes.
Klarna offers Pay in 3, Pay in 30 days and longer financing; Clearpay runs Pay in 4 over six weeks; PayPal Pay in 3 splits £30 to £2,000 inside its wallet. Zilch runs an ad-funded model through a virtual Mastercard.
One cautionary note on stability: Laybuy, once a major Pay in 6 provider, fell into administration in June 2024. BNPL economics are tight, so we’d lean toward the larger, better-capitalised names.
What BNPL Costs and When to Offer It
BNPL is the most expensive way to take a payment. You are paying for the conversion lift, so the fee only makes sense where your margin can absorb it. Here is what the main providers charged in 2026.
| Provider | Merchant fee | Model | Notes |
|---|---|---|---|
| Klarna | 4.99% + 20p | Pay in 3 / 30 days / financing | £10 dispute fee (£20 if excessive) |
| Clearpay | 6.00% + 30p | Pay in 4 over 6 weeks | POS via Square |
| PayPal Pay in 3 | Within ~2.9% + 30p | £30–£2,000 split in 3 | No separate surcharge |
| Zilch | Custom commission | Ad-funded, virtual card | No published flat merchant rate |
For scale, standard UK card processing runs about 1.5% to 3.0% plus 20–30p, so Clearpay at 6% is roughly double a card sale. Providers report order values rising 20% to 40%, but that is reported data, not a guarantee.
So when is it worth it? We’d weigh the fee against your gross margin: a 60%-margin fashion or electronics line absorbs 5% easily, while a 10–15%-margin commodity sale loses its profit. Restrict BNPL to higher-value baskets.
FCA Regulation of BNPL
After years unregulated, interest-free BNPL — legally Deferred Payment Credit — is being brought into the FCA’s perimeter. The FCA published its final rules, Policy Statement PS26/1, on 11 February 2026.
Regulation takes effect on 15 July 2026. From that date, lending without FCA authorisation or a Temporary Permissions Regime registration becomes a criminal offence; the TPR window runs 15 May to 1 July 2026.
For consumers, regulated BNPL gains Section 75 protection on purchases from £100 to £30,000, mandatory affordability checks on every transaction, and access to the Financial Ombudsman.
The good news for shops: if you only offer BNPL at checkout, you do not need credit-broking authorisation — the lender must be authorised, not you. We’d still check your provider is registered and audit your on-site messaging.
How Open Banking Payments Work
Open banking, or pay-by-bank, moves money straight from the customer bank account to yours over Faster Payments, skipping the Visa and Mastercard rails entirely. That is where the cost saving comes from.
At checkout the customer picks Pay by Bank, is redirected to their banking app, approves with a fingerprint or Face ID, and the funds — plus a success webhook — reach you in seconds rather than in one to three days.
The catch is disputes. An open banking payment is irrevocable: there is no chargeback mechanism. That kills friendly fraud, but you must handle refunds manually and tell customers so up front.
The infrastructure sits with PISPs that bundle every bank API into one integration: TrueLayer and GoCardless lead in the UK, alongside Tink, Yapily, Plaid, Token, Banked and Volt. Roughly 16 million people now use it.
BNPL, Card, and Open Banking Compared
The three rails are not rivals so much as tools for different jobs. The table below sets cost against settlement, dispute cover and fit, with the open-banking provider fees we verified in 2026.
| Factor | BNPL | Cards | Open banking |
|---|---|---|---|
| Cost to you | Very high (4.99%–6%+) | Medium (1.5%–3%+) | Very low (0.1%–1%) |
| Settlement | ~Next day | 1–3 days | Instant |
| Dispute cover | Lender handles default | You bear chargebacks | None (irrevocable) |
| Familiarity | High (younger shoppers) | Universal | Growing, lower |
On price, open banking is in another league: GoCardless charges 1% + 20p capped at £4, Blink 0.25% capped at £4, Noda from 0.1% and Ordo a flat 20p. A £500 invoice costs £12.50 on a card but caps at £4 by bank transfer.
So we’d route by job: open banking for invoices and low-margin volume, BNPL for high-margin baskets where the order-value lift pays for the fee, and cards as the universal default everyone recognises.
How to Add BNPL or Open Banking to Your Checkout
Adding a method is quick; choosing the right one for each sale is the real work. We’d run through these six steps before switching anything on at the checkout.
Common Mistakes to Avoid
The costly errors here are about expectation, not effort. These five quietly erode your margin or compliance position — and each is avoidable with a little planning.
Five BNPL and open-banking mistakes that cost UK businesses
- Treating BNPL as free marketing. The conversion lift is real, but a 6% fee on a 15%-margin product wipes out the profit on the sale. Always check the fee against your margin.
- Ignoring the 15 July 2026 FCA deadline. Your BNPL partner must be authorised or TPR-registered, and your messaging must meet Consumer Duty standards.
- Expecting chargeback cover on open banking. There is none — payments are irrevocable. You still owe statutory refunds, so a slow manual process damages your reputation.
- Replacing Direct Debit with commercial VRP too soon. Wave 1 is limited to utilities, financial services and government; general e-commerce is not live at scale yet.
- Not routing by basket size. Showing BNPL on a £5 order wastes margin; failing to offer open banking on low-margin sales leaves cheaper processing on the table.
When to Compare Payment Providers
You do not need to add every method at once. We’d watch for the trigger — a margin squeeze, a rise in abandoned high-value carts, or a batch of B2B invoices — and compare on your own numbers, not a headline rate.
Keep an eye on Variable Recurring Payments, too. Sweeping VRP is live for moving your own money; commercial VRP reached Wave 1 in early 2026 for utilities and government, with general e-commerce expected later.
When subscriptions or recurring invoices are central to how you trade, that VRP timeline is worth tracking. Our payment-processing roundups help you shortlist providers as each option matures.
Frequently Asked Questions
Is BNPL free for merchants?
No — it is the most expensive mainstream way to take a payment. Klarna charges around 4.99% plus 20p and Clearpay 6.00% plus 30p, against roughly 1.5% to 3.0% for a standard card sale. You are paying for the conversion and order-value uplift BNPL brings, so it only pays off on higher-margin products or larger baskets where that lift comfortably covers the fee.
Do I need FCA authorisation to offer BNPL?
Generally no. When BNPL regulation takes effect on 15 July 2026, the lender — Klarna, Clearpay, PayPal and so on — must be FCA-authorised or registered under the Temporary Permissions Regime, but a merchant who simply offers BNPL as a checkout option is exempt from needing credit-broking authorisation. You should still confirm your provider is authorised and make sure any BNPL messaging on your site is clear, fair and not misleading.
Can a customer charge back an open banking payment?
No. Open banking payments are bank transfers authorised directly by the customer, so they are irrevocable and have no chargeback mechanism. That protects you from friendly fraud, but it does not remove the customer’s statutory rights to a refund for faulty or misdescribed goods. You need a clear, prompt refund or payout process in place, because you must return money manually rather than through an automated dispute system.
How quickly does open banking settle compared with cards?
Open banking settles in seconds. Because the payment travels over the Faster Payments network straight into your bank account, the funds and a confirmation webhook arrive almost immediately, rather than the one to three working days a card payment typically takes to clear. For a business managing tight cash flow, that instant settlement is often as valuable as the much lower processing fee.
Can I use commercial VRP for subscriptions yet?
Not for general e-commerce. Sweeping Variable Recurring Payments — moving your own money between your own accounts — is live, and commercial VRP reached its first wave in early 2026, but Wave 1 is restricted to regulated utilities, financial services and government payments. Broader retail and subscription use is expected later, so for now keep card-on-file or Direct Debit for recurring billing and track the rollout before switching.
How We Researched This Guide
How we researched this guide
Sources. Merchant fees come from provider pricing pages (Klarna, Clearpay, PayPal, GoCardless, Blink, Noda, Ordo); the BNPL regulation timeline from the FCA and HM Treasury; VRP status from the Payment Systems Regulator and UK Finance.
Open and forward-looking items. Provider rates change, and BNPL regulation only takes full effect on 15 July 2026, so we present each figure as accurate at our verification date and name the provider or regulator beside it.
Verification date. Rates, fees and rules were verified in June 2026. Where a figure could not be confirmed from a primary source — Zilch’s merchant commission, for example — we left it out rather than guessed. Confirm current figures before you act.
Affiliate disclosure. Some links on our payment processing pages are affiliate links. This guide is editorial content and our recommendations are not influenced by commercial relationships. See our editorial policy for details.