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Obtain FNMT Digital Certificate in Alcorcón (2026)

Verified on:

Cost

Free

Free of charge

Time at office

15 minutes (just verification)

Estimated time

Same day

Quick summary

How to get the FNMT digital certificate for citizens (FNMT-RCM) in Alcorcón. Necessary for online transactions with government administration. Free of charge.

Required documents

  • Valid DNI or NIE

    Original identification document to present during the verification.

  • Compatible computer with browser

    Firefox or Internet Explorer for downloading the certificate (Firefox recommended).

0 €
Free of charge €0.00
€0.00
€0.00

: 2026

Step by step

  • 1

    Request a request code online

    Go to official site

    Go to cert.fnmt.es and enter your NIF to obtain a request code that will be sent by email.

    !

    Expert tip

    "Use the same browser throughout the process (request, verification, download)."

  • 2

    Verify your identity in person

    Go to an Alcorcón registration office (AEAT, Social Security or Town Hall) with your original DNI and request code.

    !

    Expert tip

    "You can verify at the AEAT office or Social Security Treasury, without prior appointment in many cases."

  • 3

    Download the certificate

    Go to official site

    Within a few hours (or the next day), go back to cert.fnmt.es with the same browser and download the certificate.

    !

    Expert tip

    "Make a secure backup of the certificate (.p12) with a strong password."

Offices and service points - Alcorcon

FNMT Registration Offices — Alcorcón (AEAT, TGSS, Town Hall)

Monday to Friday: 09:00 - 14:00

Frequently asked questions

What is the digital certificate for?
For online transactions with AEAT (tax declaration), Social Security (work life, benefits), DGT, civil registry and any e-administrations.
Does the certificate expire?
The FNMT citizen digital certificate is valid for 4 years. You can renew it online without a personal visit if it has not expired yet.

Official sources and useful links

This guide is for informational purposes only. Always check the official source for current information.