Poland’s flat rate tax boom slows

AI Summary

The number of Polish business owners using the flat-rate lump-sum income tax method reached nearly 1.07 million for 2025, up 51,700 from the previous year. The pace of growth has slowed after a surge following tax-rule changes earlier in the decade.

Poland’s rapid expansion of flat rate income taxation for entrepreneurs is losing momentum, according to Finance Ministry data reported by Puls Biznesu. Almost 1.07 million business owners used the lump sum method for 2025, an increase of 51,700 from the previous year. Growth has slowed from the surge recorded after changes to tax rules earlier in the decade.