Pay by Bank is a UK payment method that uses Open Banking technology to let customers pay merchants directly from their bank account during online checkout. Instead of entering card details, customers securely authorise the payment in their own banking app using their bank's authentication process. As a result, payments are made directly between bank accounts without relying on traditional card networks.
This article explains what Pay by Bank is, how it works, why it exists, and who it is actually for. Its purpose is education, clarification, and correct framing within the UK payment landscape.
What does “Pay by Bank” actually mean?
In the UK, Pay by Bank refers to account-to-account payments initiated through Open Banking application programming interfaces.
In practical terms:
- The customer selects Pay by Bank at checkout
- They are securely redirected to their bank
- They approve the payment using their bank’s standard authentication
- Funds move directly from the customer’s bank account to the merchant’s account
No card numbers are entered. No wallets are used. No banking credentials are shared with the merchant.
Because of this structure, Pay by Bank is often referred to as:
- Direct bank payments
- Open Banking payments
- Instant bank payments at checkout
All of these describe the same underlying mechanism.
How Pay by Bank works (step by step)
Pay by Bank relies on the UK’s regulated Open Banking infrastructure.
A simplified flow:
- Checkout selection The customer chooses Pay by Bank instead of a card or wallet.
- Bank selection The customer selects their UK bank from a list.
- Secure redirect The customer is redirected into their own banking environment.
- Strong Customer Authentication The bank verifies the user using biometrics, app approval, or a passcode.
- Payment authorisation The customer approves a one-time payment.
- Confirmation The merchant receives confirmation and can proceed with fulfilment.
At no stage does the merchant access the customer’s banking credentials.
The payment journey above describes how Open Banking payments generally work in the UK. Individual providers may offer different merchant integrations, reporting tools and checkout experiences.
Is Pay by Bank regulated and safe in the UK?
Yes. Pay by Bank operates fully within the UK’s Open Banking regulatory framework.
Oversight includes:
- The Financial Conduct Authority, which authorises and supervises payment providers
- The Open Banking Implementation Entity, which defines technical standards and APIs
- The Competition and Markets Authority, which originally mandated Open Banking
From a compliance standpoint:
- Payments use Strong Customer Authentication
- Data access is permission-based and time-limited
- Providers must be authorised or registered with the FCA
Pay by Bank is part of the UK’s regulated payment infrastructure, not an unregulated alternative to cards.
How Pay by Bank differs from card payments
Pay by Bank and card payments run on fundamentally different rails.
Pay by Bank uses direct bank-to-bank transfers initiated through Open Banking. Card payments rely on card schemes, issuing banks, acquiring banks, and network rules.
Key structural differences:
- Pay by Bank moves funds directly between bank accounts
- Card payments route transactions through card networks
- Pay by Bank uses native bank authentication
- Card payments rely on stored credentials or tokens
- Pay by Bank does not use card chargeback frameworks
- Card payments are governed by scheme dispute rules
The merchant experience, including integrations, reporting, settlement timing and other operational features, depends on the payment provider rather than the payment method itself.
Why Pay by Bank exists
Pay by Bank emerged to address limitations of card-dominated payment systems.
These include:
- Rising card processing fees
- Growing fraud exposure
- Complex dispute and chargeback mechanics
- Dependence on third-party payment networks
Open Banking enabled payments to be initiated directly from the banking layer instead of being routed through card rails.
The UK adopted this model earlier than most markets due to mandatory Open Banking standards, high digital banking penetration, and widespread use of banking apps.
What Pay by Bank is good at, and what it is not
It works well when:
- Customers trust and regularly use their banking app
- Immediate payment confirmation matters
- Merchants prefer certainty over reversibility
It is less suitable when:
- Customers expect credit or instalment options
- Offline acceptance is required
- Card-linked rewards influence purchasing decisions
Understanding these boundaries is critical before adoption.
Who should care about Pay by Bank
Pay by Bank is most relevant for:
- UK-based online merchants
- Digital-first businesses
- Subscription or repeat-payment models using consent-based flows
- Merchants evaluating transaction costs, operational efficiency and alternative payment methods.
It is less relevant for:
- Offline-first businesses
- Markets without Open Banking adoption
- Use cases driven primarily by card rewards
Pay by Bank is a tool, not a default choice.
How Can Merchants Accept Pay by Bank?
Once you've decided Pay by Bank is suitable for your business, the next step is choosing how to integrate it into your checkout. The implementation depends on the ecommerce platform or technology your business uses, but the goal is the same: allowing customers to authorise payments directly from their bank account during checkout.
Many merchants can add Pay by Bank through a ready-made plugin, while others choose an API integration for a custom website or application.
Many merchants can add Pay by Bank through a ready-made plugin, while others choose an API integration for a custom website or application.
Pay by Bank versus traditional bank transfer
Pay by Bank is not the same as asking customers to manually send a bank transfer.
Describing Pay by Bank as simply a bank transfer overlooks these functional differences.
Why Pay by Bank is becoming more visible in the UK
Several trends are converging:
- Consumers are comfortable approving actions in banking apps
- Regulators encourage competition in payments
- Merchants continue evaluating new payment options as Open Banking adoption grows.
- Open Banking APIs have matured operationally
As a result, Pay by Bank is increasingly positioned alongside cards rather than beneath them.
