UAE Open Finance Goes Live: Lean Scales Pay by Bank Across Enterprise Checkout

Lean Technologies has expanded its Pay by Bank product onto the UAE's newly operational Open Finance rails, moving account-to-account (A2A) payments out of pilot territory and into regulated, nationally standardised infrastructure. The Riyadh- and Dubai-based fintech, which has processed more than $4 billion in transaction volume since 2019, is now bundling deposits, collections, checkout, and subscriptions into a single Pay by Bank suite for merchants including e&, Careem, DAMAC, and OKX.

The move is one of the first commercial deployments built on the Central Bank of the UAE's Open Finance framework, which licensed regulated payment initiation in late 2025. For finance professionals tracking the Gulf payments stack, this is the moment the country's regulatory blueprint converts into live merchant infrastructure.

What does this mean for UAE merchants and acquirers?

Lower processing costs, immediately. Lean says it has saved its client base more than $100 million in card interchange and scheme fees to date, a figure that frames the unit economics of A2A versus card rails. Card processing in the UAE typically sits between 1.5% and 2.8% of transaction value once interchange, scheme fees, and acquirer markup are stacked. A2A pulls funds directly from the payer's bank account via bank APIs, compressing that cost to a flat fee in most pricing models.

For merchants with thin margins or high average order values, property developers like DAMAC, ride-hailing platforms like Careem, and crypto venues like OKX, the savings compound quickly. The expanded suite now covers recurring billing and subscription debits, closing a long-standing gap that had pushed merchants back to card-on-file for repeat charges.

Why is this different from what Lean was already doing?

Lean has been running A2A payments in the UAE since 2022, but on a pre-regulated commercial basis. Today's announcement migrates that capability onto licensed rails. Tewfik Cassis, Chief Product Officer at Lean Technologies, framed the shift as moving from a working commercial model onto "nationally standardised infrastructure," noting that the company has spent four years demonstrating the underlying volumes work at scale.

The practical difference for merchants: regulated payment initiation gives Lean's customers a clearer compliance posture, broader bank coverage as institutions are mandated onto the framework, and consumer protections that align with the Central Bank of the UAE's Consumer Protection Regulation. It also removes a procurement objection that has slowed enterprise adoption of A2A across the region, the question of whether the rails were sanctioned or merely tolerated.

How does the UAE compare to other Open Banking markets?

The UAE is moving faster than most. The UK's Open Banking regime, launched in January 2018 under the Competition and Markets Authority, took roughly five years to cross 10 million active users and only hit material payment-initiation volume in 2023. The EU's PSD2 framework, also live since 2018, has produced uneven adoption across member states. Brazil's Pix, launched by the Banco Central do Brasil in November 2020, remains the global benchmark, processing more than 6 billion transactions a month by late 2025.

The UAE's approach has compressed the policy-to-deployment cycle. The Open Finance Regulation was issued in 2024, payment initiation services went live in 2025, and enterprise commercial deployments are arriving in early 2026. That is a faster cadence than the UK or EU achieved, and it reflects a deliberate strategy by the Central Bank to make the UAE a reference market for regulated A2A in the GCC.

What is the competitive picture for Lean?

Lean is positioning itself as MENA's infrastructure layer rather than a consumer-facing payment brand, putting it closer to Plaid and TrueLayer than to a checkout button like Klarna or Tabby. Regional competitors include Tarabut, which secured Open Banking licences in the UAE and Saudi Arabia, and Fintech Galaxy, which operates the FINX Open Finance platform. Lean's edge is its installed base: 400-plus enterprise customers, more than 2 million connected accounts, and over 3 million verified accounts, according to figures the company disclosed alongside today's announcement.

The strategic question for the rest of 2026 is whether Lean can convert its data and verification footprint into payment volume now that the regulatory ceiling has been removed. The expansion of Pay by Bank into checkout and subscriptions suggests that is exactly the play.

Why This Matters to FinanceX Readers

The UAE has just moved from being an Open Finance policy story to an Open Finance commercial story.

For investors in regional fintech, that re-rates the addressable market: A2A is no longer a margin-improvement pitch for early adopters, it is becoming a default rail with regulatory backing.

For payment incumbents, particularly card networks and traditional acquirers, the $100 million in fees Lean has already displaced is a directional signal worth watching as enterprise volumes migrate.

The pace at which the UAE converts regulation into deployable infrastructure is also a useful counter-example for markets where Open Banking has stalled.

By Koen Vanderhoydonk - FinanceX Magazine