Income Tax: The 2026 Filing Calendar
While online filing has become the norm, the tax administration maintains a paper option for taxpayers who are unable to use digital tools.
Here is a practical guide to fulfilling your tax obligations in the traditional way in 2026.
1. A single deadline: May 19, 2026
Unlike the online schedule, which varies depending on the department, the deadline for submitting a paper return is the same for everyone.
You have until Tuesday, May 19, 2026, at 11:59 PM to send your form.
The postmark from La Poste serves as proof that you have met this deadline.
Online filing deadlines for the three zones
| Department number of residence | Online filing deadline |
|---|---|
| No. 01–19 (Zone 1) and non-residents | Thursday, May 21, 2026, 11:59 PM |
| No. 20–54 (Zone 2) | Thursday, May 28, 2026, 11:59 PM |
| No. 55–974 and 976 (Zone 3) | Thursday, June 4, 2026, 11:59 PM |
Who is entitled to file in paper format?
Although online filing has been mandatory since 2019, you may derogate from this rule in two specific cases:
- If your principal residence is not equipped with internet access.
- If your home has internet access but you are unable to complete your return online (for example, due to technical difficulties or lack of familiarity with the tool).
Taxpayers who already filed on paper in 2025 will receive their blank forms by post between March 27 and April 17, 2026.
2. Receiving your tax assessment by post
From 2026 onwards, the default rule is the electronic delivery of tax assessments.
However, receiving a paper notice remains an available option.
If you retain this method, your notice will arrive in your mailbox between July 23 and August 28, 2026, depending on whether you are taxable or not.
3. Refunds and payments: how does it work?
Even without an online account, transactions remain secure:
- Refund: If the administration has your bank details, you will receive a transfer at the end of July. Otherwise, a cheque will be sent to you by post.
- Balance due: If you owe money, the amount will be automatically debited from your bank account on September 25, 2026 (for amounts under €300), or spread over four months (from September to December) for higher amounts.
Med venlig hilsen / Kind regards
Cabinet Nicolas BRAHIN
Advokatfirma i NICE, Lawyers in NIC
Camilla Nissen MICHELIS
Assistante – Traductrice
1, Rue Louis Gassin – 06300 NICE (FRANCE)
Tel : +33 493 830 876 / Fax : +33 493 181 437
Camilla.nissen.michelis@brahin-avocats.com
www.brahin-avocats.com
