PL·Tax year 2025 · Filing 2026

Poland tax deadlines 2026.

Every individual and self-employed income tax deadline for Poland in 2026. Plus recurring VAT / GST / sales tax filings. Each deadline links to notes on how to file, what people miss, and matching open-source tax skills.

Poland tax authority

Annual deadlines

1 this year

Apr30

PIT Annual Return

Polish annual PIT (Podatek Dochodowy od Osób Fizycznych) return. Sole proprietors file PIT-36 or PIT-36L; ryczałt regime uses PIT-28.

PolandAll residentsSelf-employed

Recurring filings

VAT / GST / Sales tax

JPK_V7 (VAT Return)

Poland

Monthly

Polish JPK_V7 — combined VAT return and SAF-T transaction detail file. Monthly for most taxpayers; quarterly option for small taxpayers.

Open-source skills for Poland

Prepare this return with open-source skills

These skills are in the OpenAccountants repo. Clone them into Claude, Cursor, or any AI agent and they handle the computation.

poland-vat-return.mdPL

Use this skill whenever asked to prepare, review, or classify transactions for a Polish VAT return (JPK_V7M / JPK_V7K) for a self-employed individual or small business in Poland. Trigger on phrases like "prepare VAT return", "do the VAT", "Polish VAT", "JPK", "deklaracja VAT", "plik JPK", or any request involving Poland VAT filing. Also trigger when classifying transactions for VAT purposes from bank statements, invoices, or other source data. This skill covers Poland only and only standard czynny podatnik VAT registrations. VAT groups (grupa VAT), special economic zones, and fiscal representatives are in the refusal catalogue. MUST be loaded alongside BOTH vat-workflow-base v0.1 or later AND eu-vat-directive v0.1 or later. ALWAYS read this skill before touching any Polish VAT work.

Preparing a Poland return?

The OpenAccountants repo has verified, open-source tax computation skills. Clone and run them with your AI agent, then get an accountant to review.

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