Resources
Tax & social security calendar
Main filing deadlines published by the firm, each with its source and last verification date. Always check your own situation with your adviser.
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
| 31 | 1 | 2 | 3 | 4 | 5 | 6 |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 Payment of 3rd Corporate Tax (IS) provisional installment | 1 | 2 | 3 | 4 |
Deadline details
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30Sept 2026Tax
Payment of 3rd Corporate Tax (IS) provisional installment
Télépaiement du 3e acompte trimestriel d’IS sur le portail SIMPL-IS avant l’expiration du 3e trimestre.