1. Act of 26 July 1991 on Personal Income Tax (Journal of Laws 2021, item 1128).
2. Act of 29 August 1997 Tax Ordinance (Journal of Laws 2021, item 1540).
3. Act of 29 September 1994 on Accountancy (Journal of Laws 2021, item 217).
4. Adamiak, B., Borkowski, J., Mastalski, R. and Zubrzycki, J. (2016). Ordynacja podatkowa. Komentarz 2016. Wrocław: Oficyna Wydawnicza “Unimex”.
5. A European true and fair view?