Poland KSeF

All deadlines we track for Poland KSeF. Each entry links to the official source and explains who is affected and what to do.

2 deadlines tracked. Dates are the legally binding application dates.

159 days ago

1 April 2026

Large taxpayers (2024 sales above PLN 200M) started 2026-02-01; penalties for KSeF errors suspended until 2027-01-01

Every VAT-registered business in Poland, including foreign companies with a Polish fixed establishment.

116 days

1 January 2027

The smallest Polish sole traders and micro companies; all Polish businesses regarding penalties.