Pay by Bank Loyalty: Slashing Retail Payment Processing Fees

For UK retail commercial directors and heads of payments, transaction fees have long felt like an inescapable levy on growth. In an era of compressed operating margins, high merchant service charges (MSCs), scheme fees, and cross-border interchange erode millions of pounds from top-line turnover each year. Traditional card networks have built deep moats around checkout desks, leaving merchants with little negotiating leverage.

However, the maturation of Open Banking regulations under PSD2—and the subsequent expansion of Account-to-Account (A2A) infrastructure—is reshaping retail economics. Rather than paying 1.5% to 2.5% on every card swipe or digital checkout to payment intermediaries, retailers can now execute direct bank transfers. Crucially, forward-thinking brands are not merely pocketing the savings; they are feeding these newly recovered margins directly into automated open banking rewards to drive incremental customer frequency and basket size.

The Interchange Dilemma: The Hidden Tax on UK Retailers

Every time a shopper taps a plastic credit card or scans their digital wallet, a complex cascade of fees is triggered. Between the acquiring bank fee, card scheme levies, and interchange paid to the issuing bank, a merchant can surrender over 2% of the transaction value on standard debit and commercial credit cards.

Historically, closed-loop retailer loyalty schemes attempted to offset this cost by gathering customer data via plastic barcode cards or bespoke mobile apps. Yet these programmes rarely solved the underlying payments friction. Cashiers were forced to scan an app for points and then process a card transaction separately—creating point-of-sale (POS) bottlenecks, high software maintenance overheads, and substantial scheme-fee liabilities.

To break this cycle, modern retail networks are fusing payment routing and reward delivery into a single, unified interaction.

Understanding Open Banking Pay by Bank and Payment Initiation (PIS)

At the technological core of this revolution is Payment Initiation Services (PIS), established under the UK’s Open Banking standards framework. Unlike legacy Bacs or slow Direct Debit setups, PIS operates over Faster Payments rails, enabling instant, real-time account-to-account settlement.

When a customer selects Pay by Bank online or taps an in-store dynamic QR terminal:

• The consumer is redirected to their trusted banking app with biometric authentication (Face ID or fingerprint recognition).
• Funds transfer directly from the customer’s current account to the retailer's business account within seconds.
• Card scheme intermediaries are bypassed entirely, cutting transaction costs down to a low, fixed-penny fee.
• Chargeback fraud and card-not-present (CNP) vulnerabilities are eliminated thanks to Strong Customer Authentication (SCA).

While the commercial benefits for retailers are stark, the historical challenge has been consumer adoption: why should a customer change their ingrained habit of tapping their debit card? The answer lies in reciprocal value: passing back a portion of the interchange savings in the form of compelling merchant-funded rewards.

Redirecting Payment Scheme Fees into Dynamic Merchant-Funded Rewards

Consumer adoption follows incentives. If a retailer saves £1.80 on an £80 grocery or fashion basket by bypassing card networks, that capital can be converted into tangible consumer rewards without impacting the retailer's baseline margin.

By partnering with The Reward Collection, retailers can programmatically link Open Banking transactions to dynamic reward propositions. Instead of offering fractional, delayed points that sit idle on balance sheets, retailers offer real-time cashback or immediate account credits directly deposited back into the consumer's bank account.

Consider the comparative unit economics for a mid-market UK apparel retailer:

Payment Method	Avg. Basket	Processing & Scheme Fees	Allocated Reward Value	Net Cost of Transaction
Standard Credit Card	£75.00	£1.65 (2.2%)	£0.00 (No reward)	£1.65
Card-Linked Offer (CLO)	£75.00	£1.35 (1.8%)	£3.00 (Performance fee)	£4.35 (Drives measurable uplift)
Pay by Bank + Open Banking Reward	£75.00	£0.15 (Fixed/Low rate)	£2.00 (Funded by fee savings)	£2.15 (Direct payment + loyalty combined)

In this model, the retailer transforms what was once an unrecoverable operational overhead into an active customer acquisition and retention asset. The consumer receives an instant, high-perceived-value perk, while the brand reduces overall merchant settlement friction.

Eliminating Checkout Friction: Biometrics and Instant Bank Settlement

One of the primary historical hesitations regarding Open Banking payments was checkout drop-off. Early implementations suffered from clunky bank-selection screens and multiple redirects. In 2026, these user experience hurdles have largely disappeared.

Today, modern App-to-App deep linking handles authentication in sub-three seconds. For online merchants, integrating Pay by Bank rewards provides distinct conversion benefits:

1. Zero Manual Entry: Customers never need to locate a 16-digit card number, expiry date, or CVV code.
2. Instant Settlement Liquidity: Treasury teams gain instant access to working capital on Faster Payments rails rather than waiting T+2 or T+3 days for merchant acquirer payouts.
3. Deterministic Attribution: Because the transaction originates directly from an authenticated bank account, attribution is deterministic. Transaction-level data proves whether the reward prompted an incremental purchase, removing the guesswork typical of legacy affiliate programmes.

For omnichannel merchants, pairing Open Banking payments with card-linked offers creates a resilient hybrid model. Shoppers who prefer standard card rails still earn frictionless cashback through established card-linking technology, while those who adopt Pay by Bank unlock elevated reward tiers funded by processing-fee arbitrage.

Implementing Pay by Bank Loyalty with The Reward Collection

Adopting an Open Banking loyalty strategy does not require brands to build bespoke payment gateways or individually negotiate with dozens of banking institutions. Fragmented point solutions create integration drag and drain internal developer resources.

The Reward Collection bridges this gap by unifying over 500 top-tier UK merchants with major banks and financial service publishers. Through our scalable API infrastructure, retailers can deploy targeted reward structures across established banking apps, seamlessly capturing consumers whether they transact via Visa, Mastercard, or direct Open Banking rails.

By meeting consumers inside their primary banking environments, brands build brand equity, reduce payment overheads, and establish sustainable, high-frequency shopping habits without manual coupons or till-level bottlenecks.

Curious about how modern payments and loyalty infrastructure can protect your operating margins? Explore how our network partners deploy card-linked and Open Banking reward strategies, or speak to our merchant integration team today to model your potential interchange savings.