Identifying yourself on the site is a separate step
Filing on the Tax Agency site means identifying yourself. An individual can often use Cl@ve or a certificate. In many procedures a company needs an electronic certificate.
Individual and company
Cl@ve and a certificate are not the same, and not every procedure accepts both. If you file as a self-employed individual, check whether that form accepts Cl@ve. If you file as a company, access in many procedures is with a certificate. This page does not open the site for you.
- Individual: often Cl@ve or a certificate.
- Company: in many procedures, a certificate.
- Submission stays on the site.
The app’s PFX is for VeriFactu and for signing
The PFX you connect in Factura Fácil is the certificate for VeriFactu and for signing files. It does not file the self-assessment. You can generate the import file for modelo 303 and modelo 130. Importing it does not submit the form. Filing stays on the site.
Common questions
Can I file as a company with Cl@ve?
In many procedures a company needs a certificate. An individual can often use Cl@ve or a certificate, if the procedure allows it.
Does the app’s PFX file modelo 303?
No. It is for VeriFactu and for signing files. Filing stays on the site. The file you generate is imported, and importing does not submit.
Official sources
Informational text reviewed on 26 September 2026. It is not tax advice and does not replace the Spanish Tax Agency or your accountant. Deadlines, rates, and forms can change.