Polish prosecutors indict former Supreme Audit Office head over tax secret leaks

Investigation origins

The investigation began in 2019 after notifications from the CBA, the General Inspector of Financial Information, and Civic Coalition MPs. Initially, it focused on Marian B.'s alleged false asset declarations and undeclared income from renting a Kraków tenement house.

Arrests and expanding charges

In July 2021, the CBA arrested Marian B.'s son Jakub B., his wife Agnieszka, and Tadeusz G., then director of the Tax Administration Chamber in Kraków. The couple faced accusations of defrauding the National Fund for the Restoration of Kraków Monuments of about 120,000 PLN and of VAT fraud amounting to nearly 80,000 PLN. They denied the charges.

Core of the indictment

Prosecutors determined that Tadeusz G. illegally shared tax secret information with an unauthorized person.

One of the disclosed pieces of information concerned activities carried out by the Kraków-Stare Miasto Tax Office, and its disclosure constituted aiding a perpetrator of a crime in evading criminal liability.

G. admitted to revealing details of a tax audit and CBA activities targeting Marian B. to him.

Charges against Marian B. and Beata O.

For inciting G. to disclose the secret, prosecutors charged Marian B. in 2025 and now included him in the indictment.

The gathered evidence also provided grounds to charge Beata O., then acting Director of the NIK Delegation in Warsaw, with inciting a public official to commit an offense detrimental to the State Treasury, involving the disclosure of a tax secret, exceeding authority, and acting to the detriment of the public interest.

Beata O. was the former director of the Warsaw NIK delegation.

Court proceedings

The indictment was filed with the Kraków court on 9 July 2026. Tadeusz G. faces six charges in total. The investigation remains ongoing in other threads, including the earlier fraud allegations.

1. 2019Investigation launched into Marian B.'s asset declarations.
2. 2021-07CBA arrests Jakub B., Agnieszka B., and Tadeusz G.; fraud charges filed.
3. 2025Prosecutors present tax secret disclosure charges to Marian B.
4. Jul 9, 2026Indictment filed with Kraków court.