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.
Annual deadlines
1 this yearOpen-source skills for Czech Republic
Prepare this return with open-source skills
These skills are in the OpenAccountants repo. Add them to your AI agent and they handle the computation.
Redirect — consolidated into czech-republic-vat-return.md in this directory.
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.
Use this skill whenever asked about Czech income tax for self-employed individuals (OSVČ). Trigger on phrases like "how much tax do I pay", "DPFO", "daňové přiznání", "income tax return", "výdajové paušály", "expense lump-sums", "paušální daň", "flat-rate tax", "sleva na dani", "tax credits", "self-employed tax Czech", or any question about filing or computing income tax for a self-employed or freelance client in the Czech Republic. ALWAYS read this skill before touching any Czech income tax work.
Use this skill whenever asked about Czech self-employed social and health insurance contributions. Trigger on phrases like "OSSZ", "Czech social insurance", "zdravotní pojištění OSVČ", "sociální pojištění", "paušální daň", "Czech self-employed contributions", "přehled OSSZ", or any question about social/health insurance obligations for a self-employed client in the Czech Republic. Covers social insurance (29.2% of 50% base), health insurance (13.5% of 50% base), minimum advances, and paušální daň. ALWAYS read this skill before touching any Czech social contributions 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.