In 2026, naturalisation requirements are stricter. For the self-employed, additional scrutiny applies to income stability and sufficiency.
What the prefecture requires
- Last 3 URSSAF revenue declarations
- Sufficient income: generally above SMIC for 3 years
- Regular declarations — a missed one can trigger rejection
- Up-to-date URSSAF compliance certificate
Most common grounds for rejection
- Irregular or insufficient revenue in some years
- Unpaid or late URSSAF contributions
- Recent activity (less than 2 years)
Contesting a rejection
A rejection must be motivated. You can appeal before the administrative court within 2 months. FrenchDesk generates your appeal letter with the relevant legal references.