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How to Obtain the Digital Certificate (FNMT-RCM) in Alcalá de Henares (2026)

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Cost

Free

Free of charge

Time at office

15 minutes (only for identity verification)

Estimated time

Same day

Quick summary

Instructions on how to get the FNMT citizen digital certificate in Alcalá de Henares. Required for online administrative procedures. Free of charge.

Required documents

  • Valid DNI or NIE

    Original identification document to present during the verification.

  • Compatible device with browser

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

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: 2026

Step by step

  • 1

    Request an online application code

    Go to official site

    Log in 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, and download)."

  • 2

    Verify your identity in person

    Visit an FNMT registration office (AEAT, TASS, or City Hall) in Alcalá de Henares with your valid DNI and the request code.

    !

    Expert tip

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

  • 3

    Download the certificate

    Go to official site

    In the following hours (or next day), return 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 - Alcala De Henares

FNMT Registration Offices — Alcalá de Henares (AEAT, TASS, City Hall)

Monday to Friday: 09:00 - 14:00

Frequently asked questions

What is the digital certificate used for?
For online procedures with AEAT (tax declaration), Social Security (labor record, benefits), DGT, civil registration, and any e-administrative service.
Does the certificate expire?
The FNMT citizen digital certificate has a validity of 4 years. You can renew it online without visiting in person if it hasn’t expired yet.

Official sources and useful links

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