The Payment Services Regulation, or PSR, is the directly applicable European Union regulation moving through Brussels alongside PSD3. Where PSD3 is a directive that each member state must transpose into national law, the PSR applies uniformly across the whole EU the moment it takes effect, and it carries much of the substance: conduct rules, fraud liability and access to payment systems and data. Together they form the third leg of the PSD2 to PSD3 to PSR package that will govern European payments for the rest of the decade.
Why it matters
Splitting the reform into a directive and a regulation is not a technicality. Putting the core rules in a regulation means they land the same way in every member state, closing the gaps and national variations that made PSD2 uneven in practice. For merchants and payment firms that means one set of directly binding rules on authentication, refunds and fraud liability rather than twenty seven separate transpositions to track. Nothing applies today, since the package is agreed but not yet in force, but the direction is clear enough that getting Strong Customer Authentication and recurring billing right now is the sensible hedge.