The certificate of transfer is the document that formalizes the transfer of ownership of a vehicle between two parties. Without it, the seller remains legally responsible for any offenses committed with the vehicle, even after the sale. The procedure is now exclusively online, with two official channels coexisting: the ANTS website and the Simplimmat application.
Simplimmat: the transfer on smartphone without paper Cerfa
Most guides detail the procedure via the ANTS website, but a newer channel deserves attention. Since 2023, the State has been rolling out the Simplimmat application, which allows the seller and the buyer to complete the transfer declaration between individuals directly on their smartphone.
The process differs from the classic ANTS pathway in one central aspect: both parties fill out and sign the certificate of transfer electronically in real time, face to face. The joint signature immediately generates the certificate of transfer and the provisional registration certificate (CPI) for the buyer.
The concrete benefit is the reduction of data entry errors. On the ANTS website, the seller declares the transfer on their side, and then the buyer makes their request for a registration certificate separately. Each party enters the vehicle information independently, which multiplies the risks of discrepancies (incorrect formula number, errors in mileage). With Simplimmat, the data is entered only once and shared between the two accounts, eliminating this source of blockage.
For those who prefer to go through a third-party service rather than the ANTS website, it is possible to obtain their vehicle transfer certificate online with Autoscope, a professional authorized by the Ministry of the Interior who handles the electronic transmission of the file.

Legal deadline for transfer declaration: what the seller risks
The seller has a 15-day deadline after the sale to register the transfer online. This deadline is separate from that of the buyer, who has one month to request their new registration certificate. Confusing the two is common, and the consequences are not symmetrical.
If the seller does not declare the transfer within 15 days, they remain the holder of the registration certificate in the national file. Any offense captured by automatic radar, any unpaid parking, or any accident involving the vehicle will be addressed to them. Contesting these notices afterward requires much longer procedures than the initial declaration.
The buyer, for their part, drives with the CPI (provisional registration certificate) while their registration request is being processed. This CPI is only valid for one month, which effectively sets the deadline for finalizing the registration in their name.
Documents to prepare before starting the procedure
Gathering the documents in advance avoids back-and-forth that prolongs processing. Here is the list of necessary documents from the seller’s side:
- The original registration certificate, crossed out with the mention “sold on” followed by the date and time, and signed by the seller (or co-holders if applicable).
- The Cerfa form 15776, filled out and signed by both parties. Even though Simplimmat generates it automatically, downloading it in advance from the service-public.fr website allows for verifying the information calmly.
- An administrative situation certificate (or non-pledge certificate), downloadable for free from the histovec.interieur.gouv.fr website, which proves the absence of opposition or pledge on the vehicle.
- The technical inspection report that is still valid, dated less than six months ago for a vehicle over four years old.
Data entry errors on ANTS and common blockages
The primary reason for rejecting a transfer file on the ANTS website is an inconsistency between the information entered online and that on the registration certificate. The formula number (printed at the bottom left of the registration certificate, in the format XX-AA-NNNNN) is the field most often incorrectly filled out.
Another common blockage occurs when the seller and buyer do not declare the same date or time of transfer. The system cross-references the two declarations, and any discrepancy, even by an hour, suspends processing. The most reliable solution remains to fill out the paper Cerfa together during the transaction, then to enter exactly the same data during the online submission.

What to do in case of file rejection
In case of rejection, ANTS sends a message specifying the reason. The two most common cases are data inconsistency (to be corrected and resubmitted) and the absence of a scanned document. For the second case, the quality of the scan matters: a document photographed at an angle or partially cut off will be rejected by the verification system.
There is no direct phone number to contact ANTS regarding a blocked transfer file. The contact channel is the online form or the chatbot on the site. Authorized professionals (such as accredited SIV registration services) do, however, have direct access to the system and can unlock a file more quickly than an individual.
Transfer of a vehicle that is out of service or without a technical inspection
The transfer to an individual of a vehicle over four years old requires a valid technical inspection. In the absence of this document, the sale between individuals cannot be declared on ANTS.
There is an exception: the transfer for destruction to an authorized VHU center does not require a technical inspection. The VHU center issues a destruction certificate that replaces the classic transfer certificate. This procedure is also declared online on the ANTS website, in a section distinct from the standard transfer.
For a non-operational vehicle intended for a buyer who wishes to restore it, the only legal option remains to pass the technical inspection (even if unfavorable) before proceeding with the sale. An unfavorable inspection does not prevent the transfer; it simply requires the buyer to make repairs and the follow-up inspection within two months.
The key point to remember: the transfer declaration protects the seller much more than it serves the buyer. As long as the SIV file shows your name next to the registration number, you bear the legal responsibility for the vehicle. The speed of the process mainly depends on the preparation of the documents in advance and the accuracy of the information entered.



