Last updated: July 2025 

Pay by Bank lets UK customers pay directly from their bank account at checkout, without cards or wallets. Here's how it works, how it differs from card payments and manual bank transfers, and when it makes sense to use it.

The clearest explanation of Pay by Bank you'll find

Pay by Bank is a UK payment method that lets customers pay directly from their bank account at checkout, without using a card, a digital wallet, or any third-party payment intermediary. The customer authorises the payment inside their own banking app, and the funds move directly to the merchant. That's the complete picture in one sentence.

What follows is a more detailed explanation of how it works technically, how it sits within the UK's regulated payment infrastructure, how it compares to card payments and manual bank transfers, and when it genuinely makes sense — for merchants and for customers. This is an educational guide, not a sales pitch, and it's designed to give you a complete and accurate understanding of what Pay by Bank is before you decide whether it's relevant to you.

Quick summary

• Pay by Bank is a UK payment method built on open banking infrastructure that routes payments directly between bank accounts, without card networks or payment intermediaries

• The customer authenticates the payment inside their own banking app using their existing banking credentials — biometrics, PIN, or bank login — and the merchant receives real-time confirmation

• Pay by Bank is fully regulated under the UK's open banking framework, overseen by the FCA, and uses Strong Customer Authentication (SCA) by design

• It is structurally different from both card payments and traditional manual bank transfers — not a variant of either, but a distinct payment architecture

• Pay by Bank is not a universal replacement for cards — it works best in specific UK online commerce scenarios and is most effective as part of a broader payment mix

• Fena provides Pay by Bank integration for UK Shopify and WooCommerce merchants, with real-time settlement and no chargeback exposure

What Pay by Bank actually means

In the UK, Pay by Bank refers specifically to account-to-account payments initiated through regulated open banking APIs — the technical infrastructure that the major UK banks are required to support under the open banking mandate.

In practice, the customer experience looks like this: the customer selects Pay by Bank at checkout, selects their bank from a list of supported UK banks, is taken into their banking environment — either their banking app or online banking — and approves a one-time payment using their standard banking credentials. The merchant receives confirmation in real time and can proceed with fulfilment. At no point does the merchant see or store the customer's banking credentials.

The payment is initiated at the merchant's checkout but authorised entirely within the customer's own bank. The funds move directly from the customer's account to the merchant's account. No card is involved. No wallet holds the funds in transit. No card network processes the transaction.

Pay by Bank is sometimes referred to as direct bank payment, instant bank payment, or open banking payment at checkout. All of these describe the same underlying mechanism — account-to-account payment initiated through open banking infrastructure.

How Pay by Bank works, step by step

Understanding the payment flow removes the uncertainty that sometimes surrounds Pay by Bank for merchants and customers who haven't used it before.

Step one — checkout selection.

The customer sees Pay by Bank as a payment option at checkout, alongside cards and any other methods the merchant offers. They select it.

Step two — bank selection.

The customer selects their bank from a list of UK banks supported by the payment provider. Coverage includes the major UK banks and many challenger banks.

Step three — secure redirect.

The customer is taken into their banking environment. This typically means being redirected to their banking app or online banking interface. They're not sharing credentials with the merchant or the payment provider — they're authenticating within their own bank's secure environment.

Step four — Strong Customer Authentication.

The bank verifies the customer using its standard authentication method — biometric confirmation, a passcode, or an in-app approval. This is the same authentication they use every time they access their account.

Step five — payment authorisation.

The customer reviews the payment details — the amount and the recipient — and confirms. This is a one-time payment authorisation, not a recurring mandate.

Step six — confirmation.

The bank confirms the authorisation to the payment provider, who confirms it to the merchant's checkout. The customer sees an order confirmation. The merchant can proceed with fulfilment.

The entire flow typically takes under a minute, and often under thirty seconds for customers who are already logged into their banking app.

Is Pay by Bank regulated and safe in the UK?

Yes, unambiguously. Pay by Bank operates within the UK's open banking regulatory framework — not as an alternative to regulated payment infrastructure, but as part of it.

The regulatory oversight involves several bodies. The Financial Conduct Authority (FCA) authorises and supervises all payment providers that offer open banking payment services in the UK. Fena is FCA-authorised. The Open Banking Implementation Entity (OBIE) defines the technical standards and APIs that all participating banks and payment providers must adhere to. The Competition and Markets Authority (CMA) originally mandated the open banking framework and oversees compliance.

The security standards are built into the framework itself. Every Pay by Bank transaction uses Strong Customer Authentication — not as an optional layer but as a structural requirement. The customer's banking credentials are never shared outside their own banking environment. Data access is permission-based and time-limited. The authentication that protects a Pay by Bank payment is the same authentication that protects access to the customer's bank account.

For merchants asking whether Pay by Bank is safe to offer customers, and for customers asking whether it's safe to use: the regulatory and technical answer is yes, and the authentication standard is stronger than card-not-present transactions typically require.

How Pay by Bank differs from card payments

Pay by Bank and card payments are architecturally different. This isn't a matter of user experience preference — it's a difference in the infrastructure that processes the payment and the rules that govern it.

The payment rails.

Card payments route through card networks — Visa, Mastercard — and involve the issuing bank (the customer's bank), the card network, the acquiring bank (the merchant's bank), and the payment gateway. Each party in the chain has rules, fees, and the ability to decline or reverse the transaction. Pay by Bank moves funds directly between the customer's bank and the merchant's bank through open banking payment rails, with no card network in between.

Authentication.

Card payments authenticate card credentials — a number, expiry date, and security code that exist independently of the cardholder and can be compromised. Pay by Bank authenticates the actual account holder within their own banking environment at the moment of payment. The authentication requires the genuine account holder to be present and to confirm the payment actively.

Reversibility and disputes.

Card payments are reversible after settlement through the card chargeback mechanism — card network rules allow customers to dispute transactions after the fact, with merchants required to respond and defend. Pay by Bank transactions are near-final once authorised. There is no card chargeback mechanism because there is no card network. Disputes between merchants and customers are handled directly, without card network arbitration, fees, or timelines.

Cost structure.

Card payments carry interchange fees set by card networks, scheme fees, and acquirer margins — a multi-layer cost that scales with transaction value. Pay by Bank bypasses the card network entirely, resulting in a structurally lower per-transaction cost.

Settlement timing.

Card payments clear through card network settlement cycles, typically one to three business days. Pay by Bank settles same-day or instantly.

These differences are structural and consistent. They're the reason merchants choose to add Pay by Bank to their payment mix — not as a preference, but as a different architecture with different economics.

How Pay by Bank differs from a manual bank transfer

This is a comparison worth making explicitly because there is genuine confusion between Pay by Bank and WooCommerce's or Shopify's built-in "bank transfer" option — and the two are fundamentally different.

A manual bank transfer requires the customer to leave the checkout, open their banking app or online banking, navigate to the payments section, enter the merchant's account details, type in a payment reference, and send the funds themselves. The merchant then has to wait for the payment to arrive, manually match it to the order using the reference, and update the order status. The process relies on the customer entering the correct reference, the correct amount, and actually following through — each of which creates opportunities for error and non-completion.

Pay by Bank does none of this manually. The payment is initiated within the checkout flow, the amount and recipient are pre-confirmed, the customer authenticates within their banking app in a guided flow that takes seconds, and confirmation returns to the merchant's checkout automatically. The order is confirmed in real time. There is no manual reconciliation step, no waiting for funds to arrive, and no risk of incorrect references or amounts.

The two methods both involve bank accounts. Beyond that, they work completely differently — in terms of customer effort, completion rates, merchant operational overhead, and the reliability of the payment confirmation.

Why Pay by Bank exists in the UK payment landscape

Pay by Bank emerged from a specific set of conditions that made the UK an earlier adopter than most markets.

The open banking mandate — requiring the nine largest UK banks to provide standardised, secure APIs for payment initiation and account data access — was introduced in 2018. This created the technical infrastructure for account-to-account payment initiation at checkout. Before that infrastructure existed, the only practical alternative to cards for online payment was manual bank transfer, with all the friction that entails.

The commercial logic for developing Pay by Bank on top of this infrastructure was driven by the costs and friction of card-dominated payment systems. Card processing fees had risen. Chargeback fraud had grown. The complexity of managing card network disputes had become a meaningful operational burden for merchants at scale. Open banking payment rails offered a structurally different model — direct settlement, no card network intermediary, no chargeback mechanism.

The consumer side of the equation was equally relevant. UK consumers had become highly accustomed to authenticating through their banking apps for everyday account management. The behaviour of approving a payment through a banking app — which is what Pay by Bank requires — was already familiar to the majority of UK adults. This familiarity reduced the adoption friction that would have existed if Pay by Bank had been introduced before mobile banking was widespread.

The result is a payment method that addresses real structural problems in the card payment model and is built on infrastructure that UK consumers and banks already use.

Where Pay by Bank works well — and where it doesn't

Pay by Bank is most effective in specific scenarios, and being clear about where it works best is more useful than overclaiming its universality.

It works well when

the customer is UK-based and uses a mainstream UK bank; the purchase is online and the customer has their banking app available; the merchant values payment certainty — near-final settlement without chargeback risk; and fee reduction is a commercial priority.

It works particularly well for higher-value transactions where the fee saving from avoiding card network costs is material, for first-time buyers who are hesitant about sharing card details with an unfamiliar merchant, for merchants in categories with elevated chargeback rates where removing the card dispute mechanism is structurally valuable, and for merchants where cash flow predictability matters and same-day settlement is commercially useful.

It works less well when

the customer wants credit, instalment payment, or the card rewards benefits that drive some purchasing behaviour; the purchase is in-person or offline; the customer base is primarily international (Pay by Bank coverage is strong for UK banks but limited for non-UK accounts); or the transaction requires card-on-file for automated recurring billing without customer re-authentication.

Understanding these limits is as important as understanding the benefits. Pay by Bank is a tool suited to specific purposes. The merchants who get the most value from it are those who deploy it where it fits rather than treating it as a universal answer.

Who Pay by Bank is most relevant for

For merchants, Pay by Bank is most relevant for UK-focused online retailers, Shopify and WooCommerce merchants with meaningful card processing costs or chargeback exposure, and businesses in categories where card payment acceptance is structurally problematic — regulated categories, high-risk classifications, or high-value transactions where card fraud risk is elevated.

For customers, Pay by Bank is most relevant for those who prefer bank-authenticated payment over card credential entry, those who are cautious about sharing card details with unfamiliar merchants, and those who use their banking app regularly and find the Pay by Bank flow faster and more familiar than card entry.

Neither group needs to treat Pay by Bank as a replacement for other payment methods they already use. For merchants, it works best as part of a payment mix. For customers, it's an option at checkout — one that an increasing proportion of UK shoppers are choosing.

Frequently asked questions

What is Pay by Bank in the UK?

Pay by Bank is a UK payment method built on open banking infrastructure that lets customers authorise payments directly from their bank account at checkout. The customer selects their bank, authenticates within their banking app, and the funds transfer directly to the merchant. No card details are shared and no payment intermediary holds the funds.

Is Pay by Bank the same as open banking?

Open banking is the regulated framework and technical infrastructure — the mandate that requires UK banks to provide standardised payment initiation APIs. Pay by Bank is a payment method built on top of that infrastructure. Open banking is the foundation; Pay by Bank is one of the things built on it.

Is Pay by Bank safe?

Yes. Pay by Bank operates within the UK's regulated open banking framework, is overseen by the FCA, and uses Strong Customer Authentication by design. The customer's banking credentials are authenticated within their own banking environment and are never shared with the merchant or payment provider.

How is Pay by Bank different from a bank transfer?

Pay by Bank is initiated at checkout, guided through an automated flow, confirmed in real time, and requires no manual action from the customer beyond authenticating in their banking app. A manual bank transfer requires the customer to leave checkout, navigate their banking app independently, enter merchant details, and send the funds manually. The merchant then reconciles the incoming payment manually. They're completely different experiences with different completion rates and operational requirements.

Do chargebacks apply to Pay by Bank payments?

No. Pay by Bank transactions don't go through card networks, so card chargeback mechanisms don't apply. Disputes between merchants and customers are handled directly without card network involvement. For merchants, this removes chargeback fees, dispute response obligations, and card network monitoring thresholds on Pay by Bank volume.

Does Pay by Bank replace card payments?

No. Pay by Bank is a complementary payment method that works best in specific UK online commerce scenarios. Cards remain the right choice for many customers — particularly those wanting credit, instalment options, or international coverage — and the strongest merchant payment setups offer Pay by Bank alongside cards rather than instead of them.

How does Fena provide Pay by Bank for UK merchants?

Fena is an FCA-authorised open banking payment provider that integrates Pay by Bank directly into Shopify and WooCommerce as a checkout payment option. The integration works alongside existing card and wallet payment methods, adds Pay by Bank as an additional choice for customers, and provides real-time settlement, complete transaction audit trails, and no chargeback exposure on Pay by Bank transactions.

Are Pay by Bank payments instant?

Payment confirmation is typically near-immediate — the merchant receives confirmation within seconds of the customer authorising the payment. Settlement to the merchant's bank account is same-day or faster with Fena, compared to the one-to-three-day clearing cycle for card payments.