Poland's Tax Service

Poland's Tax Service is the national authority responsible for the assessment, collection, and enforcement of taxes throughout the country. It provides a range of services to individual taxpayers, businesses, and other entities, including the processing of tax returns, issuance of tax certificates, and management of tax debts. The organisation operates an online filing system that allows users to submit declarations and make payments electronically. Its activities cover all major tax types, such as personal income tax, corporate income tax, value‑added tax, and excise duties. By maintaining a nationwide network of offices and digital platforms, it ensures compliance with Polish tax legislation. The service also offers guidance and support to help taxpayers meet their obligations.

As a governmental body, Poland's Tax Service holds a regulatory role in the fiscal sector, overseeing the implementation of tax policy set by the Ministry of Finance. Its distinguishing attributes include specialization in tax law administration and the development of digital tools aimed at improving taxpayer convenience and transparency. The agency’s online filing platform has become a notable competency, enabling efficient processing of millions of returns each year. In February 2023, the service experienced a distributed denial‑of‑service attack that temporarily disrupted its website and online filing system for about an hour, an incident attributed to the Russian‑aligned hacker group NoName057(16). Officials linked the attack to broader cyber campaigns by pro‑Russian actors seeking to pressure Poland due to its support for Ukraine. Despite the outage, no data compromise was reported, underscoring the agency’s focus on maintaining the integrity of taxpayer information.