The Polish Financial Supervision Authority (KNF) issues Recommendation WFD to mitigate risks in mortgage funding by requiring banks to maintain a Long-Term Funding Indicator (WFD) of at least 40% from December 31, 2026. The recommendation applies to domestic banks with assets exceeding 2 billion PLN and a mortgage loan portfolio share above 10%, mandating the use of long-term debt instruments with specific risk weights to ensure stable funding. Banks must report the WFD monthly and immediately notify the regulator if levels fall below the expected threshold, providing a plan to restore compliance.