Tax calendar

filing of self-employment income tax return for the 2025 tax period (not electronically)

withholding tax payment according to the special tax rate for January 2026

tax due for January 2026 (excluding excise duty on alcohol)

quarterly tax advance

monthly payment of the total of withheld advances on personal income tax from dependent activities for February 2026

electronic submission of self-employment income tax return for the 2025 tax period

maturity of the lump sum advance payment

tax return and tax due date for February 2026

summary report for February 2026

inspection report for February 2026

tax return and due date for gas, solid fuels and electricity tax for February 2026

tax return for February 2026

tax due for January 2026 (only excise tax on alcohol)

tax return and tax due date for OSS – import regime

withholding tax payment according to the special tax rate for February 2026

tax return for claiming a refund of excise duty pursuant to Section 57 of the Excise Duty Act (crop production and/or livestock farming) for the year 2025

Tax calendar

Tax list - March 2026

income tax

income tax

excise tax

windfall profits tax

income tax

income tax

income tax

income tax

value added tax

value added tax

value added tax

energy taxes

excise tax

excise tax

value added tax

income tax

excise tax