Where to go in Paris
Use the official sites below to check the responsible service, application method and appointment requirements. Not every procedure is handled by the prefecture. Contact the association to discuss available support.
Key points in 30 seconds
- Open the simulator.
- Enter rent and household.
- Enter income.
The procedure at a glance
Data needed
Rent, town, household and income for the last 12 months.
Advice from the association
Don't leave this procedure to the last minute — come and see us.
What drives the amount
Rent, area, household size and income.
Common mistake
Delaying.
When to apply
As soon as you move in: no backdating.
Common mistake
Treating the estimate as a right.
Housing rules
Main residence, decent housing, landlord not a direct relative.
Common mistake
Not reporting income changes.
Step by step
- 1Open the simulator.
- 2Enter rent and household.
- 3Enter income.
- 4Save the result.
- 5Apply on moving in.
Documents needed
Collected: 0 / 5
FAQ
Foreign students eligible?
Yes, with legal residence.
Paid to whom?
Often directly to the landlord.
Result is 0 €?
Check income, housing and rent entered.
Where do I find my CAF allocataire number?
At the top of every CAF letter and in your caf.fr account next to your name; usually 7 digits. It is asked for in every CAF request.
Steps and documents on one page — save as PDF and take it with you.