
If someone asks you for an autónomo registration proof duplicate, they want a fresh PDF that proves two things: that you registered as self-employed with Social Security (RETA, the self-employed Social Security regime) and that you registered with the Tax Agency (AEAT, Spain’s tax agency). The fastest combo is the RETA accreditation from TGSS (the Social Security treasury) and the AEAT census certificate. Both are free and downloadable online with Cl@ve (government login), a digital certificate, DNIe (electronic national ID), or, for TGSS, SMS. This guide shows the exact clicks to get them and what to send in common cases.
Is it free? Yes, both proofs are free to download online.
How long does it take? Online is usually instant. If AEAT queues your request, their formal max is 20 working days.
I do not have Cl@ve or a digital certificate. What can I do? Register for Cl@ve online or in person, or use TGSS by SMS if your phone is on file.
Do I also need my 036 or 037 form? Many banks and clients accept the census certificate instead. If they ask for the literal form, you can download your filed 036/037 too (Modelo 036/037 is the business census form you filed to register).
Is vida laboral enough? Vida laboral (your work history report) proves work history, not your tax census. Send it only as a complement, not as a replacement.
The two standard PDFs most requesters want are the RETA accreditation and the AEAT census certificate.
They show your self-employed start date, activity, tax status, and ID data. They are accepted by banks, clients, marketplaces, and public programs. Keep both together in one folder.
More about autonomo registration.
Downloads are free. Issuance is immediate online in almost all cases.
The acreditación de alta en trabajo autónomo is TGSS’s official proof that you registered in RETA. It includes your start date and identifiers.



Use Cl@ve, digital certificate, DNIe, or SMS if your mobile is registered with TGSS. If SMS fails, add or update your number in Importass first, then retry.
The certificado de situación censal shows your NIF, tax address, IAE activity (IAE is the list of business activity codes), start date, VAT position, and special regimes. Most banks and clients ask for this one.
Tip: Keep this PDF with your TGSS accreditation. Send both to avoid back-and-forth.
AEAT’s certificate service page explains what the document includes and the valid login methods.
They want the exact PDF you filed when you registered, changed data, or deregistered.
Many requesters accept the census certificate instead of the literal form. If the request is strict, send both the census certificate and the 036/037 copy.
To produce an autónomo registration proof duplicate that works everywhere, download two PDFs: the TGSS RETA accreditation from Importass and the AEAT census certificate from the AEAT site. Add the exact 036/037 you filed only when someone insists on the literal form, and include vida laboral as a complement when asked. All of these are free and, in most cases, instant online. Keep them together so you can send the correct autónomo registration proof duplicate any time