CZ·Tax year 2025 · Filing 2026

Czech Republic tax deadlines 2026.

Every individual and self-employed income tax deadline for Czech Republic 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.

Czech Republic tax authority

Annual deadlines

1 this year

Apr30

OSVČ Daňové Přiznání

Czech Republic's annual tax return deadline for OSVČ (self-employed) when filed electronically. Paper deadline is April 1.

Czech RepublicSelf-employed

Open-source skills for Czech Republic

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.

czech-republic-vat-return.mdCZ

Use this skill whenever asked to prepare, review, or classify transactions for a Czech Republic VAT return (Priznani k DPH) or Control Statement (Kontrolni hlaseni) for any client. Trigger on phrases like "prepare VAT return", "do the DPH", "fill in DPH", "Czech VAT", "kontrolni hlaseni", or any request involving Czech VAT filing. This skill covers Czech Republic only and standard DPH registration. 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 Czech VAT work.

Preparing a Czech Republic 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.

View the repo All countries