
An administrative code that is nowhere to be found, a key whose access seems reserved for a few insiders: the NAN CESU code escapes the logic of ordinary identifiers. On payslips or usual certificates, it remains invisible. Only a letter sent after registration with the National CESU Center holds the secret.
Its presence is essential for certain procedures, particularly during declarations or requests for information from social organizations. The absence or loss of this code leads to additional delays, or even the temporary suspension of certain processes.
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What exactly is the NAN CESU code?
The NAN CESU code is the key element for anyone navigating the world of universal service employment vouchers. Issued by the National CESU Center or the CESU Reimbursement Center, it serves to identify each home employee at the time of cashing the CESU vouchers. This number, composed solely of digits, functions like an identity card for the person receiving the pre-financed CESU checks: housekeeper, caregiver, gardener… everyone goes through it.
The CESU (for universal service employment voucher) has been simplifying the formalities related to home employment for over fifteen years. It covers a wide range of services: cleaning, childcare, support for the elderly. There are two forms: the declarative CESU, to report the hiring of an employee, and the pre-financed CESU, a payment title partially or fully financed by the employer or an organization.
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For the employee, finding the NAN CESU code easily quickly becomes a priority to cash their vouchers and receive their salary without delay. This code, still too little known to newcomers, is the sine qua non condition for reimbursement by the CESU Reimbursement Center. If it is missing, the payment gets suspended, and the procedures can quickly turn into an obstacle course.
Be careful not to confuse the NAN code with other social identifiers: it can only be obtained once from the National CESU Center and accompanies the employee throughout their journey in the service employment sector. Preserving this code and limiting its dissemination is therefore an individual but fundamental responsibility, as it structures the relationship between home employee and the CESU system.
Where and how to easily find your NAN CESU code?
To know where to find the NAN CESU code, one must be aware of the official channels accessible to each home employee wishing to cash their pre-financed CESU checks. Several reliable means exist, provided you know where to look.
- Your personal space on the CESU Reimbursement Center website allows direct access: once logged in, the NAN code is clearly displayed on the dashboard, alongside your contact and banking information.
- On your previous CESU reimbursement statements, the NAN code is generally indicated at the top of the document or in the details of the transactions. Keeping these documents handy can save a lot of searching.
- Upon your first affiliation, the National CESU Center sends you a postal or electronic letter explicitly mentioning the NAN code. This document is valid and should be archived carefully.
At the time of issuing universal service employment checks, various organizations also transmit this code: banks, mutuals, insurances, pension funds, or certain departmental services. Each organization has its own rules, hence the importance of systematically checking for the code upon receipt.
In case of loss, simply contact the CESU Reimbursement Center by phone or via the online form to receive a new confirmation letter. However, the simplest way remains to access your NAN CESU code directly through the official platforms: this guarantees accurate, secure, and up-to-date information.

Using the NAN CESU code: procedures, tips, and points to watch out for
Any home employee receiving pre-financed universal service employment checks must absolutely provide their NAN CESU code. This number conditions the payment of the salary: whether one is a housekeeper, home helper, or a self-employed person authorized to accept these titles, the absence of the code on the slip or the deposit platform blocks any reimbursement.
To cash the vouchers, the deposit is made on the CESU Reimbursement Center website or at certain partner banks. It is better to act quickly: each pre-financed CESU title has a usage deadline, generally twelve months after issuance. Before validating, carefully check each field: an error in entering the NAN code will halt the processing of your file.
Here are the key points to never lose sight of:
- Respect the legal framework: even in CESU, the Labor Code and the National Collective Agreement apply. Beyond eight hours per week or four weeks in the year, a written employment contract becomes mandatory.
- Tax credit: amounts paid in CESU entitle you to a tax reduction of 50% (up to €6,000 per year). Mention them in your 2042-RICI declaration.
- After each cashing, a certificate, which serves as a payslip, is sent to each home employee. This document provides official proof of the transaction.
For affiliated self-employed individuals, the declaration of turnover is done independently. A useful note: for the care of children under six years old, the Pajemploi system replaces the CESU. This distinction avoids many errors during administrative procedures.
The NAN CESU code, although invisible, remains the key for home employees for smooth and secure payments. Behind each number lies the promise of timely salary payments and a relationship of trust between employee, employer, and institutions. The next time you hold a CESU check, check your code: it makes all the difference.