Correspondent banking has always been a quiet toll booth. You want to reach Riksbank’s settlement systems? Fine — but you’ll pay a partner bank for the privilege, accept their liquidity terms, and hope their operational priorities align with yours. For Swedish challenger bank Bankaktiebolaget Nordiska, that arrangement is now over.
Nordiska has selected Finastra’s Swift Service Bureau to handle global Swift connectivity and direct access to Sweden’s central payment rails, including the Riksbank’s RIX RTGS system, with RIX INST instant payments integration planned next. The deal was reported by Fintech in Nordics. The headline is clean: Nordiska gets direct settlement access, removes the intermediary layer, gains control over liquidity management. CPO Jonas Hultin called it “a streamlined and scalable platform to manage payment flows and liquidity directly” as the bank grows. Straightforward enough.
But the more consequential story isn’t about Nordiska. It’s about what this signals for the partner banks that built quiet, recurring revenue streams around exactly this kind of dependency — and who never seriously planned for losing it.
How the dependency got built
Challenger banks entering the Swedish market faced a structural ceiling. Direct access to Riksbank infrastructure requires regulatory standing, technical integration, and operational capacity that most young institutions simply didn’t have at launch. So they rented access. A partner bank sat in the middle, providing the connection to central bank money, handling settlement flows, and taking a margin for the service. It was rational for everyone at the time.
The problem is that this arrangement quietly became load-bearing for some incumbents’ revenue models. Correspondent and partner banking fees don’t appear as a dramatic line item in annual reports, but they accumulate. For mid-tier Swedish banks that carved out a niche as settlement intermediaries for the new generation of challengers, the fee income wasn’t theoretical. It was structural. And because the challengers were small when the relationships started, nobody modeled what happens when they grow large enough to leave.
Nordiska leaving is one data point. But Finastra’s framing of this deal tells you the direction of travel: they describe it explicitly as evidence that challenger banks are increasingly building direct rail access rather than renting it from correspondents. That isn’t a sales pitch. That’s a pipeline description.
The strongest case for the other side
The obvious counterargument is that most challengers aren’t Nordiska — that direct rail access demands operational maturity, regulatory capital, and technical infrastructure that the majority of young banks still can’t support. Running your own Swift connectivity and RTGS participation isn’t free. The partner bank model persists precisely because it converts fixed infrastructure costs into variable fees, which suits a bank trying to grow without crushing its unit economics early.
That’s legitimate. There’s also a geographic argument: the Nordics have relatively concentrated banking infrastructure, which makes the transition more tractable here than in markets with fragmented or opaque settlement architecture. What works for Nordiska in Sweden isn’t automatically portable.
But notice that both counterarguments are about timing, not direction. Nobody serious is arguing that direct rail access will become less attractive as challengers scale. The question is when, not whether.
Who actually loses here
The partner banks most exposed aren’t the large universal banks, who have enough revenue diversification to absorb attrition quietly. The vulnerable players are the mid-sized institutions that positioned themselves as infrastructure providers to the fintech layer — banks that offered payment rail access as a differentiated service and built client relationships around it. For them, losing a Nordiska-sized client isn’t a rounding error. It’s a thesis challenge.
The deeper problem is pricing. Correspondent banking relationships are typically structured around current transaction volumes, not future optionality. A challenger bank that needed rail access when it processed ten thousand payments a month becomes considerably more valuable when it processes ten million. But by the time that growth is visible, the challenger has also become large enough to justify building its own access. The partner bank captured the low-margin early years and missed the high-volume returns. That’s a structurally bad deal, and most institutions holding it haven’t fully priced the exposure on their books.
Finastra wins here, obviously. So does Nordiska. The Riksbank’s infrastructure becomes more accessible to a broader set of institutions. All of that is genuinely good for the Swedish payments ecosystem.
But somewhere in Stockholm, a treasury team at a mid-tier bank is running updated revenue projections and hoping the number of Nordiskas in their correspondent portfolio stays small. The reasonable assumption is that it won’t.
