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WIBOR transition poses massive financial risk to Poland
Experts and financial institutes are warning of significant economic risks associated with the potential legal challenging of the WIBOR reference rate in Poland. According to the Sobieski Institute, worst-case scenarios involving disputes over WIBOR-based loans could cost the banking sector approximately 284 billion PLN, a sum comparable to the total capital of many banks, potentially leading to institutional failures and wider economic instability.
Further analysis from the Warsaw Institute of Banking suggests even higher costs. Estimates indicate that challenging the rate could cost the economy between 300 and 350 billion PLN. When including consumer loans based on various WIBOR rates issued between 2004 and 2026, total costs could approach 460 billion PLN.
To address the transition, banks will begin using the new POLSTR reference rate for loan agreements starting January 1, 2027. The WIBOR rate is expected to be phased out completely from the Polish financial system by the end of December 2036.
Entities
Association of Polish Banks · Leszek Skiba · Poland · Polish Bank Association · Sobieski Institute · WIBOR · Warsaw Institute of Banking
Claims
What the coverage asserts, and how many sources carry each claim.
- [○ 1 SOURCE] Over 2,700 court proceedings regarding WIBOR-based Zloty loans were ongoing in the first instance by the end of 2025. pracodawcagodnyzaufania.pl
- [○ 1 SOURCE] Banking sector interest income from WIBOR-based mortgage loans between 1997 and 2025 totaled 218.1 billion PLN. www.budnet.pl
- [○ 1 SOURCE] The potential costs of challenging WIBOR are comparable to the total capital of banks, risking insolvency. pracodawcagodnyzaufania.pl
- [○ 1 SOURCE] Challenging the WIBOR rate could cost the Polish banking sector between 300 and 350 billion PLN. www.budnet.pl
- [○ 1 SOURCE] Banks will begin using the new POLSTR reference rate for loan agreements starting January 1, 2027. www.budnet.pl
- [○ 1 SOURCE] Challenging WIBOR-based loans could cost the banking sector up to 284 billion PLN in a worst-case scenario. pracodawcagodnyzaufania.pl
- [○ 1 SOURCE] Including consumer loans based on various WIBOR rates, total costs could approach 460 billion PLN. www.budnet.pl
- [○ 1 SOURCE] WIBOR is scheduled to be phased out of the national financial system by the end of December 2036. www.budnet.pl