France tax deadlines 2026.
Every individual and self-employed income tax deadline for France 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 yearRecurring filings
VAT / GST / Sales taxTVA CA3
France
French VAT return (CA3). Quarterly for most regimes; monthly for businesses above certain turnover thresholds.
Open-source skills for France
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.
Use this skill whenever asked to prepare, review, or classify transactions for a French VAT return (déclaration de TVA CA3) for a self-employed individual or small business under the régime réel normal in France. Trigger on phrases like "prepare CA3", "French VAT return", "TVA", "déclaration de TVA", "classify these transactions for French VAT", or any request involving France VAT filing. This skill covers France only, régime réel normal (monthly CA3) and régime réel simplifié (annual CA12 with two advance payments). Micro-entreprise (franchise en base de TVA), partial exemption, and margin schemes are in the refusal catalogue. MUST be loaded alongside BOTH vat-workflow-base v0.1 or later (for workflow architecture) AND eu-vat-directive v0.1 or later (for EU directive content). ALWAYS read this skill before touching any French VAT work.
Use this skill whenever asked about French social contributions (cotisations sociales URSSAF) for self-employed individuals (travailleurs independants), including professions liberales and BNC taxpayers. Trigger on phrases like "cotisations URSSAF", "charges sociales independant", "CSG CRDS freelance France", "CIPAV retraite", "ACRE reduction", "social contributions France", "cotisations minimales", "prelevement URSSAF", "cotisations trimestrielles", or any question about French self-employed social security. Also trigger when classifying bank statement transactions showing URSSAF prelevements, CIPAV debits, or cotisations trimestrielles. ALWAYS read this skill before touching any French social contribution work.
Preparing a France 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.