These are the 2025 income tax declaration deadlines, by department in France
Paper returns have a separate earlier deadline
The majority of declarations should be made online
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Deadlines for submitting income tax returns this spring are being widely listed in the French media. There is no official confirmation yet for this but each year it happens and the dates are usually correct.
The declaration season, relating to 2024 income, opens on April 10, and will last six to eight weeks depending on where the declarant/s live.
Everyone who lives in France - and people who live abroad but have French-sourced income, such as from renting out a French property - must make a declaration.
The 2025 deadlines are:
Before midnight on Thursday May 22 for departments 01 (Ain) to 19 (Corrèze), as well as those who live abroad but must declare French-derived income
Before midnight on Wednesday May 28 for departments 20 (Corse-du-Sud) to 54 (Meurthe-et-Moselle)
Before midnight on Thursday June 5 for 55 (Meuse) to 95 (Val-d'Oise) and overseas departments
Paper tax returns have a separate deadline
If you are filing a paper tax return – an option available to those who are unable to file online through age / disability or who do not have an adequate internet connection, or via dispensation from the tax authorities – the deadline is before midnight on Tuesday May 20.
If it is your first time declaring, you would usually send in a paper tax return (the forms can be found with a search at impots.gouv.fr) - although it is possible to do this online if you contact the your tax office to obtain the log-in details you need to create a personal space on the website.
As a reminder, non-residents must declare any income that is assessable in France, which depends partly on double tax treaties. The most usual case for this is rental income from French properties.
Declarations can be updated anytime until the deadline, either online or via a second paper form in the post (for eligible declarants).
Failure to submit the declaration in time may result in a 10% increase in the taxes you must pay as part of the penalty. This can rise to 40% if you ignore repeated reminders about declaring.
