Poland's POLSTR index to replace WIBOR in new variable-rate loans from 2027

Poland's financial market is transitioning from the WIBOR benchmark to the new POLSTR index, with new variable-rate credit agreements required to use POLSTR from the start of 2027. The shift aims to align with EU benchmark reforms, but its impact on existing mortgage borrowers remains uncertain, as the transition may affect future loan pricing and monthly installments.

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