For a decade, a large slice of European corporate banking was done from somewhere that was not Europe. A US bank booked a syndicated loan for a German manufacturer out of New York. A Chinese lender funded a Rotterdam trade line from an offshore desk. A Swiss house took deposits from a French treasury team without ever holding an EU license. The legal cover was a patchwork of national exemptions and a generous reading of “reverse solicitation.” That model is now closing by contract.
On July 11, 2026, the grandfathering window under the EU’s sixth Capital Requirements Directive (CRD6) shut. Contracts signed before that date keep their exemption. Anything written after it does not, and firms entering new arrangements should now assume the new framework applies. Four days earlier, on July 7, the European Banking Authority published its final Guidelines on authorising third-country branches, the last major piece of the rulebook non-EU banks need to file an application. The hard wall follows on January 11, 2027, when Member State regimes become fully operational and every third-country bank doing core banking business in the EU must comply.
This is not a capital story
It is worth being precise about what changed, because it is easy to file CRD6 next to Basel III and miss the point. Yesterday’s piece on the US softening its Basel III endgame was about capital quantity: how much loss-absorbing equity a bank must hold against its assets. CRD6’s third-country branch regime is a different instrument on a different axis. It does not ask how much capital a foreign bank holds. It asks whether that bank is allowed to serve European customers at all.
The answer, from January, is no, not without a locally authorized and supervised branch. Where Washington is loosening how tightly banks are bound, Brussels is tightening who is admitted to the room. The two moves point in opposite directions, and any bank with a transatlantic footprint is now managing both at once.
What trips the wire
The requirement attaches to “core banking activities,” and the definitions are broad. Taking deposits and other repayable funds counts, regardless of whether the counterparty would otherwise be classed as a credit institution. Granting credit counts, and the category sweeps in corporate lending, consumer lending, syndicated lending and factoring. Issuing guarantees and commitments counts. If a non-EU bank does any of these with an EU client from an offshore desk, it is now inside the perimeter.
There are exits, but they are narrower than the offshore model relied on. Reverse solicitation still applies where an EU client approaches the bank on its own exclusive initiative, but regulators read it restrictively and it will not carry a book that was actively marketed. Services to EU credit institutions and certain other regulated financial entities sit outside the requirement, so interbank flow is largely spared. Intra-group business and lending ancillary to MiFID investment services can also qualify. What none of these save is the ordinary case: a foreign bank actively lending to, or taking deposits from, European corporates.
The grandfathered book decays as it rolls
The grandfathering relief is real but thin. It protects performance of contracts already signed before July 11, not the franchise. Renewals, extensions, novations and material amendments after the cutoff are expected to be treated as new contracts by most Member States, and therefore outside the exemption. A grandfathered loan book does not sit still. It amortizes, refinances and rolls, and every roll is a decision point where the old cover may fall away. The practical effect is a book that shrinks toward zero unless the bank builds the branch it was trying to avoid.
Everyone offshore, not just Wall Street
The framing has centered on US banks because they run the largest European desks, but the regime is nationality-blind, and that is the part that widens the story. The United Kingdom has been a third country since Brexit, so London’s booking model into the EU is squarely in scope. Swiss institutions face the same reassessment of whether to stand up an EU branch or subsidiary. And Chinese banks, which leaned heavily on specific Member State exemptions to run offshore cross-border direct lending, face what one analysis calls a shift from fragmentation to fortress: the exemptions they depended on are being pulled into a single, harder authorization gate.
Build or retreat
The choice from here is binary and expensive. Building a branch means capital endowment held locally, local governance and reporting, and, under the EBA’s new guidelines, a non-opposition statement from the bank’s home supervisor before an application will clear. That is a real commitment of capital and management attention for a European book that, for some banks, was a convenience rather than a core franchise. The alternative is to let the grandfathered book run off and stop writing new EU business. Some banks will build. Others will quietly retreat and cede those clients to EU-authorized competitors, which is precisely the market-structure outcome Brussels is content to accept.
There is a second signal worth watching. On July 17 the European Commission set out its intent to tailor capital requirements more proportionately to small and regional banks, adjusting thresholds for smaller, non-complex institutions. Read alongside CRD6, it points to a Europe that is re-tiering its banking rulebook on two fronts at once: lighter treatment for its own small domestic banks, and a harder access gate for large foreign ones. The single market is not becoming more open. It is becoming more selective about who gets to bank inside it, and on what terms.
January is the wall. The offshore desk that served Europe without a European license has until then to become a European branch, or to stop.
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