Every year, several million tenants receive housing assistance paid by the CAF. For these rights to be opened and maintained, a document links the landlord, the tenant, and the fund: the rent certificate, formalized by the Cerfa 10842. Without this form filled out and signed by the owner, the payment of APL, ALS, or ALF is completely blocked.
Cerfa 10842: what the form really asks of the landlord
The Cerfa 10842 is not just a simple confirmation of the rent amount. The form requires the landlord to certify several elements simultaneously: the actual occupation of the housing by the tenant, the rent amount excluding charges, the nature of the rental (unfurnished, furnished, shared accommodation), the date of entry into the premises, and whether there is a family relationship with the tenant.
This last point is often underestimated. A family link between landlord and tenant can modify or even eliminate the right to housing assistance. The CAF uses this declaration to cross-check information and detect any inconsistencies with the lease provided by the tenant.
One should not confuse this document with the rent receipt. The receipt proves that a payment has been made. The rent certificate, on the other hand, is a declaration of the rental situation, focused on calculating rights. Both documents coexist but do not serve the same purpose. Downloading a CAF rent certificate template allows you to check that each section is correctly filled out before sending.
July rent declaration: the annual appointment that conditions rights
Since 2025, the CAF has systematized a step that many landlords neglect: the July rent declaration. This amount serves as the basis for recalculating housing assistance for the following year. The declaration is made via the Cerfa 10842 or directly from the online landlord space on caf.fr.
The timeline is tight. The CAF generally sends its reminders between September and October, but the reference rent remains that of July. A landlord who delays in responding exposes their tenant to a suspension of payments, without the tenant being able to remedy it alone.
Concrete consequences of a delay
The suspension is not theoretical. When the CAF does not receive the certificate on time, the payment of assistance is frozen until the document is received. For a tenant whose budget partly relies on the APL, this can lead to unpaid rent, which places the landlord in a paradoxical situation: by not filling out the form, they risk not being paid themselves.
However, the tenant has recourse. They can formally notify their landlord by registered mail. The refusal to provide the certificate constitutes a breach of the landlord’s obligations, and the CAF can intervene directly with the latter.
Online landlord space: what changed in 2026
The CAF is now strongly pushing for dematerialization. The landlord space (or partner space) on caf.fr is no longer limited to entering the rent certificate. It allows you to declare online a tenant’s departure, an unpaid rent, or a change in the number of roommates.
This evolution reduces the use of paper Cerfa, but it assumes that the landlord has created their account and associated it with the relevant properties. In practice, owners who manage one or two properties directly still often use the PDF form, as they have not activated their space.
- Creation of the landlord account on caf.fr with the tenant’s allocation number or file number
- Direct entry of the rent certificate without downloading Cerfa
- Declaration of rental events (departure, unpaid rent, end of management) from the same space
- Tracking the processing status by the CAF, which avoids unnecessary reminders
For landlords managing multiple properties, the online space represents a real time saver. For an owner with a single tenant, the PDF form remains functional, provided deadlines for sending are respected.
Direct payment of APL to the landlord: the link with the rent certificate
When the APL is paid directly to the landlord (which is common in social housing and increasingly frequent in the private sector), the rent certificate takes on an additional dimension. It not only serves to open the tenant’s rights: it also conditions the payment circuit.
To obtain this direct payment of housing assistance, the landlord must submit the rent certificate in addition to their request. Without this document, the CAF maintains the payment to the tenant, which forces the owner to collect the full rent themselves each month.
Certificate and regulated housing
The form includes a specific box for regulated housing (APL agreement signed with the State). This mention determines the type of aid paid and its amount. A landlord who incorrectly checks this box, or who fails to check it, skews the CAF’s calculation. The amount of assistance directly depends on the accuracy of the information declared in the certificate.
Field feedback varies on the ease of correction in case of error. Some CAFs accept a quick online correction, while others require a new complete form. The processing time varies by department.
Common errors on the CAF rent certificate
Three errors frequently recur in certificates rejected by the CAF:
- Stating the rent including charges instead of the rent excluding charges, which skews the calculation of assistance and leads to a rejection of the file
- Omitting the effective date of the lease or indicating the signature date instead of the date of entry into the premises, two distinct pieces of information for the CAF
- Not signing the document or having it signed by the tenant, when only the landlord (or their representative) is authorized to fill out and sign the certificate
These errors may seem minor, but each can delay payment by several weeks. The tenant has no control over the quality of the filling out: they depend entirely on the diligence of their landlord.
The CAF rent certificate remains an apparently mundane administrative document, but its completion conditions the payment of housing assistance, the payment circuit, and sometimes the landlord-tenant relationship. Checking each section of the Cerfa 10842 before sending, respecting the annual July declaration, and activating the online landlord space are three reflexes that avoid most blockages.
