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France Tax Calendar May 2026: Income Tax, IFI and Filing Deadlines

Posted on May 15, 2026

Taxes: Key Deadlines for the Month of May

The fiscal year is marked by a series of essential deadlines for taxpayers.

Between withholding tax payments, income tax filings, and obligations related to real estate wealth tax, it is crucial to keep track of the calendar in order to avoid any delays or penalties.

In this respect, the month of May is particularly busy.

Below are the main deadlines to keep in mind.

May 15: Monthly Payments and Installments

On this date, the fifth monthly income tax payment is collected under the withholding tax system.

This applies to taxpayers receiving income that is not subject to withholding by a third-party collector, including:

  • self-employed individuals,
  • liberal professionals,
  • farmers,
  • as well as individuals receiving rental income or alimony.

This date also corresponds to the fifth monthly payment for taxpayers who have opted for monthly payments of certain taxes, such as:

  • property tax,
  • housing tax on second homes,
  • and real estate wealth tax.

May 19: Deadline for Paper Tax Returns

May 19 is the final deadline for submitting paper income tax returns (the 2026 return relating to 2025 income), including for taxpayers residing abroad.

This deadline also applies to paper filings of the real estate wealth tax (IFI).

Taxpayers who file their returns online benefit from an extended deadline, which varies depending on the number of their department of residence.

May 21: First Deadline for Online Filing

For taxpayers filing their returns online, the first deadline is set for May 21.

It applies to:

  • departments numbered 1 to 19,
  • as well as residents abroad.

This deadline applies to both income tax returns and real estate wealth tax declarations.

Anticipate to Better Manage

Meeting these deadlines is essential to avoid penalties and to secure your tax position.

It is recommended to prepare your returns in advance and carefully review pre-filled information to ensure its accuracy.

Good organization not only helps ensure compliance with tax obligations, but also allows taxpayers to optimize their tax situation by taking advantage of available measures.

 

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

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