Open Banking in 2026: What's Actually Working, What's Still Maturing, and Why It Matters for Modern Payment Infrastructure

A grounded look at open banking past the marketing - what it changes for merchants, where the real economics live, and how it fits into a serious payment stack alongside cards and APMs.

For years, open banking lived in a slightly awkward space in the payments conversation. Practitioners knew it was important. Marketers oversold it. Merchants nodded politely and went back to optimising their card flows. The technology was real, the regulation was real, but the practical, day-to-day case for using open banking at scale wasn't always obvious.

That ambiguity is fading. In 2026, open banking is no longer "the future of payments" - it's a working payment rail with measurable economics, growing consumer adoption in several major European markets, and a clear set of use cases where it consistently outperforms cards. Merchants who continue to treat it as exotic are increasingly missing what's already happening underneath their checkouts.

This article steps past the buzzwords and looks at what open banking actually does inside a modern payment stack: how it changes the economics of accepting payments, where it sits alongside cards and APMs, what use cases it genuinely owns, and what's still maturing.

The Old Model and Why It Earned a Challenger

To understand why open banking has the impact it does, it helps to look honestly at the system it's competing with.

For most of the digital era, online payments have run on a remarkably layered set of intermediaries. A typical card transaction touches:

• The merchant's gateway
• An acquiring bank
• One or more card networks
• The customer's issuing bank
• Often, a fraud or risk vendor in parallel

Each of those layers exists for a reason and provides real value. They also each charge fees, introduce latency, and create surface area where things can go wrong. The aggregate result, for merchants, is a cost structure that ranges from manageable to painful depending on the vertical, and a fraud profile shaped by the fact that card credentials get passed through many hands on their way to authorisation.

This system isn't broken. It's been the backbone of digital commerce for a generation. But it was designed before high-volume cross-border e-commerce, before instant settlement expectations, before the regulatory focus on consumer data control, and before the technical capability to do something fundamentally different existed.

Open banking exists because the technical capability now does.

What Open Banking Actually Is

Stripped of the hype, open banking is a regulated framework that lets consumers, with their explicit consent, grant third-party providers access to their bank accounts, either to read information or to initiate payments. The mechanism is APIs that banks are now legally required to expose; the legal foundation in Europe is PSD2 (the Second Payment Services Directive), with parallel frameworks in the UK and other markets.

Two distinct services sit underneath it:

Account Information Services (AIS). With consent, a third party can read a user's bank-account information - balances, transactions, account metadata. This is what powers personal finance apps that aggregate multiple accounts, lenders that underwrite based on actual cash flow rather than just credit scores, and financial wellness tools that analyse real spending.

Payment Initiation Services (PIS). With consent, a third party can initiate a payment directly from the user's bank account to the merchant's. This is the part that matters most for payment infrastructure. The customer authenticates inside their banking app - biometrics, app approval, or whatever their bank's strong customer authentication looks like - and funds move directly between bank accounts.

The key structural shift: the merchant never touches card credentials. There are no card numbers to be stored, encrypted, tokenised, or stolen. The transaction goes account-to-account, with the customer's bank handling authentication.

That single fact - no card credentials in the merchant's possession - is what changes the economics, the security posture, and the fraud profile, all at once.

How Open Banking Actually Changes the Numbers for Merchants

The marketing language around open banking is often vague. The economics, when you look at them concretely, are sharper.

Lower processing costs. Card transactions carry interchange fees, scheme fees, acquirer fees, and often gateway fees layered on top. Open banking payments bypass the card networks entirely. The cost per transaction is typically a fraction of a card payment - particularly for higher-value transactions, where card percentages bite hardest.

Lower fraud exposure. Most online card fraud relies on stolen credentials or social engineering around them. Open banking payments don't generate credentials in the merchant's environment, and they're authenticated inside the customer's bank - usually with biometric or strong app-based factors. Chargeback exposure also looks different, because the legal mechanism for a bank-initiated payment is structurally distinct from card disputes.

Faster settlement. Open banking payments increasingly run over instant rails, settling in seconds rather than the days that traditional bank transfers take and the working capital cycles that card settlement imposes. For B2B, marketplaces, and any business where cash-flow timing matters, this is real money.

No card-data scope. Because no card data is captured, large parts of PCI DSS scope simply don't apply to open banking flows. The compliance overhead shrinks accordingly.

None of these benefits requires speculation. They're how the rail works.

Where Open Banking Genuinely Wins and Where It Doesn't, Yet

A balanced view matters here. Open banking isn't going to replace cards across every checkout, and merchants who treat it as a universal substitute will misallocate effort.

Where it currently wins:

• Higher-value transactions where card percentage fees become significant
• Account funding flows - adding money to wallets, brokerage accounts, gaming balances, neobanks
• Bill payments and recurring obligations where the customer expects to confirm via their bank anyway
• B2B payments where the customer is paying from a business account and cards aren't the natural vehicle
• Markets with strong instant-payment infrastructure and bank-trust culture - the UK, Netherlands, Germany, Nordics
• Use cases where chargeback risk has been a chronic issue under card processing

Where cards still lead:

• Low-value, high-frequency consumer purchases where the friction of bank redirection isn't justified by the savings
• Cross-border markets without consistent open-banking infrastructure
• Subscription and recurring billing, where card-on-file flows are still smoother than current open-banking equivalents, though this is changing
• Markets where consumer adoption hasn't yet reached critical mass

The right framing isn't "open banking versus cards" - it's open banking and cards, deployed where each actually wins.

What Open Banking Looks Like at Checkout

The customer experience matters because consumer adoption depends on it. The good news is that open banking checkout has matured considerably:

1. The customer selects "Pay by Bank" or a localised equivalent
2. They pick their bank from a list
3. They're redirected briefly into their bank's app or portal
4. They authenticate using whatever their bank requires - biometrics, app approval, or device-based factors
5. They confirm the payment
6. They're returned to the merchant with a confirmed payment

Done well, the entire flow takes seconds and feels native - particularly on mobile, where redirects to and from banking apps are now smooth in a way they weren't five years ago.

The friction that used to define open banking - slow redirects, confusing flows, broken returns - has largely been engineered out of the better implementations. What remains is a flow that, in many cases, is faster than typing card details, and meaningfully more secure.

Open Banking Beyond Payments

Most of the merchant interest sits in PIS - payment initiation. But AIS is reshaping financial services in ways that matter for how merchants understand their customers and counterparties:

Smarter underwriting. Lenders, BNPL providers, and credit underwriters can, with consent, see actual income and spending patterns rather than relying on credit-bureau snapshots. This produces fairer outcomes for thin-file applicants and faster decisions for everyone else.

Account verification at scale. For payouts, refunds, and account funding, AIS can confirm an account belongs to the customer it should belong to, before money moves. That's a measurable reduction in errors and fraud.

Real-time financial visibility for users. Aggregator apps that pull together accounts across multiple institutions are quietly reshaping how customers think about their money, and the merchants integrated into those flows benefit from being inside that visibility rather than outside it.

Cleaner reconciliation. Bank-data access enables matching outbound payouts and inbound payments to specific customers and invoices automatically, reducing manual reconciliation overhead.

The ecosystem effect of AIS is broader than any single payment product. The merchants paying attention treat it as a strategic data layer, not just a feature.

Where Open Banking Fits Inside a Real Payment Stack

The pragmatic question for most merchants is: where does open banking sit alongside everything else?

The answer is straightforward: as one rail in a portfolio, integrated through a payment orchestration layer that exposes it as one option among cards, wallets, and other APMs. Customers see "Pay by Bank" alongside their other choices. The orchestration layer handles routing, retries, reconciliation, and reporting consistently across all rails.

What this looks like in practice:

• Open banking offered prominently for higher-value transactions, account funding, and bill-style payments
• Cards continuing to lead for habitual consumer purchases and recurring billing
• Local APMs deployed where their adoption justifies it
• All rails feeding into a unified analytics and reconciliation view

Done this way, open banking adds resilience and economics to the stack rather than replacing parts of it. The merchant's job becomes selecting the right rail for the right transaction, not betting on a single technology to win.

What's Still Maturing

A few honest caveats are worth naming:

Consumer adoption varies enormously by market. UK and Dutch users will click "Pay by Bank" without thinking. Other European markets are still building familiarity.

Recurring and subscription support under open banking has improved, but isn't yet as universal as card-on-file.

Cross-border consistency is uneven. Open banking infrastructure inside a single jurisdiction can be excellent; the experience of paying from one country to a merchant in another is sometimes more friction than it should be.

Standardisation is ongoing. PSD2 set the foundation, but bank-by-bank API quality varies. The successor framework, PSD3, is moving toward tighter standardisation; in the meantime, working with providers who handle the bank-side variability matters.

Consumer education still has work to do. The security model of open banking is better than card payments, but consumers don't always perceive it that way at first contact.

These aren't reasons to skip open banking. They're reasons to deploy it thoughtfully - where it wins clearly, with strong UX, and as part of a broader rail strategy rather than a single-bet replacement.

The Bottom Line

Open banking has crossed the line from promising to operational. It's no longer the future of payments - it's a working part of the present, with concrete cost, security, and speed advantages in specific use cases, and a maturing ecosystem in many of the markets where European merchants do most of their business.

The merchants getting real value from it aren't the ones treating it as a card replacement. They're the ones deploying it where it actually wins, integrating it cleanly alongside their existing rails, and treating it as one strong tool in a portfolio rather than a magic answer.

For payment infrastructure heading into the next phase of European commerce, that's exactly the right way to use it.

At Paylinq, we help merchants integrate open banking alongside cards, wallets, and local APMs through a single orchestration layer - so each rail handles the transactions it's best suited for, and the whole stack reports cleanly into one unified view. If you'd like to map out where open banking would actually pay off in your business, get in touch with our team.

This article is provided for informational and educational purposes only and does not constitute financial, legal, tax, regulatory, or compliance advice. Specific operational, payment, and architectural decisions should be made in consultation with qualified professionals familiar with your jurisdiction and business model. References to specific regulations, schemes, providers, or scenarios are illustrative only and do not imply endorsement or guarantee. The authors and publisher accept no liability for actions taken based on this content. Information may become outdated as payment infrastructure, regulations, and market conditions evolve.