Polish tax deadline calendar generator
The 20th and the 25th are the two dates that matter most in Polish business, and neither is fixed: both slide to the next working day when they land on a Saturday, a Sunday or one of thirteen public holidays. This works that out for your exact profile.
Dates marked “moved” fall on a weekend or public holiday and shift to the next working day.
Generated for the profile you selected, on the standard calendar tax year. Licences, excise, Intrastat, transfer pricing and any individual arrangement with the tax office are not included.
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Rates used (2026) — verified
- Ministerstwo Finansów Ustawa z 24.06.2025 — art. 113 exemption raised to 240 000 zł from 1.01.2026 podatki.gov.pl
- Ministerstwo Finansów Ustawa o podatku dochodowym od osób fizycznych — scale, flat tax and lump-sum rates podatki.gov.pl
- Ministerstwo Finansów Ustawa o podatku dochodowym od osób prawnych — 19% / 9% and the Estonian CIT regime podatki.gov.pl
Figures are official rates for the tax year shown. They are not advice on your own case.
01 What happens if a deadline falls on a Saturday?
It moves to the first working day after it. Article 12 § 5 of the Tax Ordinance treats a Saturday like a public holiday for this purpose, which is why 25 April 2026 — a Saturday — is really 27 April. The rule catches out anyone scheduling payments a fixed number of days ahead: the money has to be with the tax office or ZUS on the shifted date, not sent on it.
02 Is Christmas Eve a working day in Poland?
Not any more. 24 December became a public holiday from 2025, which shifted the December deadlines for everyone and made a lot of published calendars quietly wrong. Together with the 25th and 26th it puts three consecutive non-working days at the end of the year, so anything due around then has to be settled before the 23rd in practice.
03 Can I file quarterly instead of monthly?
For VAT, small taxpayers may switch to quarterly returns after twelve months of being registered — but the JPK records still go monthly, so it is three payments a year instead of twelve, not three filings. Income-tax advances can be quarterly for small taxpayers and businesses in their first year. Quarterly settlement is easier on the diary and harder on cash flow, because the amount arrives three times bigger.
- Sole trader or sp. z o.o.? Tax comparison Put a sole proprietorship on the scale, the flat tax and the lump sum next to a limited company on classic and Estonian CIT — same revenue, five bottom lines, 2026 rates.
- Scale, flat tax or lump sum? Tax form comparison One decision a year, worth thousands: compare the tax scale, the 19% flat tax and the lump sum on your own revenue, with the health contribution each one triggers.
- Salary calculator — gross to net Estimate take-home pay in Poland across employment, mandate, specific-task and B2B contracts — with a full breakdown of ZUS, health and tax.
- Employer cost calculator — what a hire really costs Gross pay is not the cost. See the full ladder from what leaves your account to what lands in the employee’s — pension, disability, accident, Labour Fund, FGŚP and PPK, at 2026 rates.
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