Source date: 2026-04-12
Taxes 2026: What Are the Deadlines for Declaring Your Professional Income? Published on April 13, 2026 - Entreprendre Service Public / Directorate of Legal and Administrative Information (Prime Minister)
Are you subject to income tax (IR)? Since April 9, you can fill out your income declaration for the year 2025. Entreprendre Service Public provides you with the deadlines for declaring your professional income for the year 2025.
Image 1 Credits: Franck Chapolard - stock.adobe.com
Professionals taxed as individuals (self-employed entrepreneurs who have not opted to be treated as EURL, independent merchants or artisans, micro-entrepreneurs, for example) are subject to income tax. Income tax affects their overall net income.
The deadlines for declaring professional income vary depending on the department where the business is located:
Table - Deadlines for Online Declaration of Income for the Year 2025 Departments and Zones
Deadline for declaration
Departments No. 01 to 19 (Zone 1) and residents abroad
Thursday, May 21, 2026, at 11:59 PM
Departments No. 20 to 54 (Zone 2)
Thursday, May 28, 2026, at 11:59 PM
Departments No. 55 to 974/976 (Zone 3)
Thursday, June 4, 2026, at 11:59 PM
How to Declare Your Professional Income Online?
This online declaration is done in the "individual" space of the site impots.gouv.fr. It can also be done through the EDI-IR procedure when the accountant makes the declaration.
The declaration of professional income is made using the form n°2042-C-Pro (complementary declaration of non-salaried professional income).
For self-employed workers, this tax declaration is supplemented by a specific "social" section to be filled out. It allows for the collection of the necessary elements for calculating social contributions and contributions.
Possibility of Paper Declaration
You can make a paper declaration if you find yourself in one of the following situations:
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you do not have internet access in your primary residence;
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you are unable to make your declaration online.
You will need to send the form n°2042-C-Pro to the tax service by postal mail.
The deadline for this paper submission is set for Tuesday, May 19, 2026, at 11:59 PM (postmark serving as proof).
Online Services and Forms
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Declare Your Income Online Online service
See Also
Log in with the username and password of one of the following accounts: Impots.gouv, Ameli, Digital Identity (La Poste), Yris, MSA, France Identity or TrustMe
Source: Service-Public professionals