Reporting an Error in Your File

An administrative error can sometimes occur in your CAF file: incorrect information, missing document, or mixed-up files. You can report this error via a detailed letter to correct it quickly.

This page explains how to draft this report, 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?

• You noticed incorrect information in your file (name, address, situation);
• Your file was mixed up with another person's file;
• A document you sent wasn't registered in your file;
• You need to correct a spelling error in your information;
• You noticed a discrepancy between displayed information and reality.

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

Required information to include

• Your first and last name and beneficiary number;
• A precise description of the error observed;
• The correct information that should be registered;
• The date you noticed the error;
• Supporting documents for your correction.

The more detailed and well-documented the report, the faster the correction.

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 in my file

Dear Sir/Madam,

I am reporting an error in my file concerning [description of 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 my registered information?

You can regularly review your file through your personal space on the CAF website.

How long does correcting an error take?

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

What if the error affected my benefit amount?

The correct amount will be recalculated after correction, with any difference settled.

Can files really get mixed up?

Rare but possible, especially with similar names, it's advisable to report immediately if suspected.

Who can I contact for urgent correction?

You can also contact by phone or through your personal space alongside the letter.