Poland considers tax law changes regarding bank account privacy

The Polish Sejm is considering legislative changes to Article 48 of the National Revenue Administration (KAS) Act. The proposed amendment aims to regulate how tax authorities access bank account information. Currently, KAS can request extensive data from banks, including account balances, transaction histories, transfer details, and information regarding securities, loans, and safe deposit boxes. A significant point of contention is a 2022 change that expanded the scope of data access from “suspects” to any “natural person.”

Separately, discussions regarding financial oversight highlight that while there is no legal limit on the amount of cash individuals can keep at home in Poland, the source of such funds remains a critical focus for tax authorities. Large cash purchases, such as real estate or vehicles, can trigger investigations into whether the funds align with declared income. Failure to justify the source of wealth can result in a 75 percent tax rate on undeclared income. Data from the National Bank of Poland shows a rising trend in cash in circulation, reaching 427.7 billion PLN as of April 2025.