💡 Opening of tax filing
In France, this year, the online filing service opens on April 9, 2026.
📝 Tax filing deadlines
Departments 01 to 19: May 21, 2026
Departments 20 to 54: May 28, 2026
Departments 55 to 976: June 4, 2026
💡 The deadline for paper tax returns is May 19, 2026.
📤 Correction period
Did you notice an error on your tax assessment notice? The French tax authorities give you the opportunity to correct it.
The online correction service will be open from July 29, 2026, until the end of November 2026.
👉 To learn more about corrections and omissions, read our article on this topic.