Install Certificado Digital (Spain)

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The certificado digital lets you file taxes and handle admin online securely.

Steps

Start the application

Go to FNMT site, request a certificate, and note your application code.
Verify identity

Attend an authorized office with ID and application code for verification.
Install and backup

Download the certificate on your browser/computer and create a secure backup.

Quick links

Guides

Yes for many services, but some still require the certificate.

Typically ID and proof related to the procedure (e.g., address, income or ownership). Check the official site for country-specific lists.

Often yes via the official portal (Agencia Tributaria or regional portals). Some steps still require in‑person verification or mailing originals.

Processing times vary by city and season. Plan for days to a few weeks; start early before deadlines.