A service provider receives their first pre-funded universal employment service check. To cash it, the CESU Reimbursement Center requires a NAN code. This national affiliation number conditions the entire reimbursement process, and yet, its location regularly poses problems, especially since the recent changes to the dematerialized procedure.
NAN Code Cesu: format and concrete role in reimbursement
The NAN code is a national affiliation number assigned by the CRCESU to each affiliated provider. It appears as a unique code made up of digits, usually seven, followed by an asterisk and a key digit (example: 0012345*1).
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This code serves one specific purpose: to identify the provider in the reimbursement system for pre-funded CESUs. Without this number, one cannot cash an employment service check or receive the corresponding amount. An employer wishing to add a home employee on a platform like Edenred+ must also provide this code to validate the link with the provider.
Sometimes, the NAN code is confused with the declarative Cesu number (that of the social section). These are two distinct systems. The NAN exclusively concerns the circuit of pre-funded titles and their reimbursement via the CRCESU. If one is looking for where to find the NAN Cesu code, the answer depends on the time of affiliation and the channel used.
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Online space of the CRCESU: the only reliable source today
The paper mail sent after affiliation used to contain the NAN code. This practice still exists, but the NAN code is now primarily accessible in the online space of the provider on the CRCESU website.
Accessing the NAN code from your account
The process is straightforward. One logs in at espacepersonnel.cr-cesu.fr, then looks in the “my profile” or “my reimbursement details” section. The NAN code appears there clearly.
For a provider who has never created their online space, they must first go through account creation. The CRCESU requires identity information and a bank account statement to validate the connection. Once the account is active, the NAN becomes immediately accessible.
Forgotten or lost NAN code
The CRCESU has tightened its policy on communicating the NAN code. The code is no longer provided over the phone for security reasons. The standard procedure involves resetting online access (under “forgot password” or “create my space”), then consulting the NAN directly in the account.
If online access remains blocked, there is still the option of a written request. One sends a form or a letter to the CRCESU with identity documents and a bank account statement. Responses vary regarding the processing time for this request, but the online channel remains significantly faster.
What issuers of pre-funded CESUs have changed since 2023
One point that surprises many providers: some issuers of CESU titles have changed their statements. Since 2023, the NAN no longer appears on the statements sent by email from several issuers, particularly to limit the risk of fraud.
Specifically, the email or PDF of the transfer no longer mentions anything except the name of the provider and the reimbursed amount. The NAN is only visible in the secure account of the CRCESU. If one relied on an old statement to find their code, this option no longer works systematically.
This change has a practical consequence for home employers. When an employee cannot find their NAN code and the employer needs to provide it on a management platform, the only solution remains to ask the provider to log into their CRCESU space.
Structures and legal entities: a different NAN circuit
Associations, home service companies, and other legal entities affiliated with the CRCESU do not follow exactly the same path as an individual.
- Affiliation is done via a dedicated form on the CRCESU website, in the “Legal Entity” section, with specific supporting documents (Kbis extract or declaration receipt, professional bank account statement).
- The NAN code assigned to a structure is linked to the legal entity, not to an individual. A change of management does not alter the NAN.
- Access to the code is done in the online space dedicated to legal entities, with identifiers distinct from those of individuals.
For a home cleaning company or a personal assistance association, losing access to the CRCESU account blocks all reimbursements of pre-funded CESU titles. It is advisable to keep the identifiers in a secure place and to designate an administrative manager who manages this account.
Verification of the NAN code before adding a provider
When an employer wants to add a provider on a CESU management platform, the first thing to check is the validity of the transmitted NAN code. A valid NAN code means that the provider is already affiliated with the CRCESU and there is no need to restart an affiliation procedure.
- Ask the provider to provide their NAN code as it appears in their CRCESU space (with the key after the asterisk).
- Check that the format corresponds to the standard (digits followed by an asterisk and a key digit).
- If the provider does not have a NAN code, it means they are not yet affiliated. They will need to register on the CRCESU website before they can be added.
An incomplete or incorrectly copied NAN code (without the key, for example) will systematically result in a rejection on management platforms. Checking the exact format avoids unnecessary back-and-forth between the employer, the home employee, and the CRCESU.
The NAN code remains stable over time. A provider affiliated several years ago retains the same number, even after a change of bank or residence. Only updating the bank account statement in the CRCESU space is necessary to continue receiving reimbursements to the correct account.