Correcting an Error in Housing Benefit

If you notice an error in the calculation of your housing benefit (incorrect amount, incorrectly registered information), you can report this via a detailed letter to correct the situation quickly.

This page explains how to draft this correction, what information to provide, and offers a ready-to-use letter template, plus a tool to automatically generate your personalized letter.

When should you write this letter?

• The amount paid doesn't match your actual situation;
• You noticed incorrect information in your file (income, address, family situation);
• A recent change wasn't taken into account;
• You need to correct a simple administrative error;
• You want to understand how your benefit amount is calculated.

In all these cases, a written letter remains a reliable way to correct your file quickly.

Required information to include

• Your first and last name and beneficiary number;
• The current amount and expected correct amount;
• A detailed description of the error observed;
• The period concerned by the error;
• Supporting documents for your correction.

The more detailed and documented the correction, the faster it will be processed.

Official letter template

Important note: the letter sent to CAF must be written in French, as it is a French administration. Below is a template you can use as a basis.

[First name LAST NAME]
[Full address]
[Beneficiary number]

CAF of [Department]
[CAF address]

Written in [City], on [Date]

Subject: Reporting an error - housing benefit

Dear Sir/Madam,

I have noticed an error concerning the calculation of my housing benefit: [description of the error].

[...]

→ The complete letter, tailored precisely to your situation and ready to send, is generated automatically in 3 minutes using the tool above.

Frequently Asked Questions

How do I check the accuracy of the amount paid?

You can use the rights simulator on the CAF website to compare the expected amount with what you actually receive.

What is the deadline for correcting an error?

It's advisable to act quickly, with correction possible until the end of the second following year.

Does correction mean retroactive payment?

Yes, if the error is in your favor, the difference will be paid retroactively after correction.

What if the error was unintentionally in my favor?

It's preferable to report it to avoid a larger repayment claim later.

How long does the correction take?

Usually a few weeks after receiving your letter and supporting documents.