Obtain FNMT Digital Certificate

The software environment used in this article is:
- Windows 10
- Internet Explorer 11

There are compatibility issues with Chrome (v86) during the application process, no others were tested

Apply for Certificate

Access the FNMT Digital Certificate Application Platform

Prepare the Software Environment

Click the following buttons in the left menu: Persona Fisica > Obtener Certificado Software > Configuración Previa

Click the link "Área de Descarga de Configurador FNMT" below to be redirected to the downloads page of the auto-configuration tool

Download and run the tool corresponding to your operating system

(If the signature tool AutoFirma is not installed yet, a pop-up box will appear, just ignore it for now)

Submit Application

Click the button Solicitar Certificado in the left side menu, then fill in the relevant information in the new page

    > Full DNI/NIF/NIE
    > First last name, as it appears on your ID card
    > Email address
  • Confirme aquí su CORREO ELECTRÓNICO
    > Email address confirmation


Click the link "Pulse aquí para consultar y aceptar las condiciones de expedición del certificado" below

Scroll down to the bottom and check Acepto las condiciones de expedición

Click the button Enviar petición

After that, click Allow in the pop-up window

Then, set a password in the following pop-up window and click OK


The application is successfully submitted when the following page appears, you should check your email inbox for a mail containing the application code



Prove Identity

Click the button Acreditar Identidad in the left side menu, read paragraph "Documentación necesaria para acreditar identidad" to learn about the required documents for the process

In some cities or during some special periods, you need to request an appointment in advance for going in an office, see below for the process

Click the link "LOCALIZADOR DE OFICINAS" at the bottom

In the left side menu "¿Qué certificado necesitas?" of the map, uncheck all options except Personas Físicas

You can also type in an address in "Introduce una dirección" to find nearest offices

Request an Appointment to Office

Access the Appointment Management Platform of AEAT

Fill in the relevant information and click the button Enviar

  • Introduzca NIF/NIE
    > Complete NIF/NIE
  • Introduzca primer apellido, segundo apellido y nombre
    > First last name, middle name and first name (separated by spaces)

Click on Service Category "Gestión Censal, [email protected] y acreditación certificado digital" below and check service "Personas físicas: Apoderamientos. Acreditación Certificado digital FNMT.NEO."

Scroll down to the bottom, fill in the relevant information and click the button Solicitar Cita

  • Teléfono
    > Phone number
  • Repetir teléfono
    > Confirm phone number
  • Confirmación de la cita
    > Notification method of appointment confirmation

    • Deseo recibir un SMS en el teléfono anterior
      > By sending a SMS to the phone number above
    • Deseo recibir un correo electrónico
      > By sending an mail to the email address below
  • Correo electrónico
    > Email address
  • Repetir correo electrónico
    > Email address confirmation

Search office according to the situation (usually there will be more results by Searching by province), click the button Enviar

  • En una oficina de la Agencia Tributaria que preste el servicio a su domicilio fiscal.
    > Search by the address on your ID
  • En una oficina de la Agencia Tributaria que preste el servicio a domicilios de un código postal concreto.
    > Search by the entered zip code
  • En una oficina de la Agencia Tributaria perteneciente a una provincia concreta.
    > Search by the selected province

If there are available offices to request an appointment, a calendar will be displayed, select an available date (like day 12 here)


Select a time, click the button Enviar


An appointment is successfully made when this page appears (you will also receive a SMS or email about it)


Go to the office with those required documents, tell the officer that you need to "Acreditar identidad para certificado digital", you'll need to present the documents and the received application code

After successfully proved your identity, you will receive an email telling you that your digital certificate is now available to download


Download Certificate

Click the link "Descarga de su certificado de Persona Física" in the received email, to the download page

Fill in the relevant information

    > ID
    > First last name
    > Application code


Click the link "Pulse aquí para consultar y aceptar las condiciones de uso del certificado" below

Scroll down to the bottom and check "Acepto los términos y condiciones de uso"

Click the button Descargar Certificado

Click OK in the pop-up window, then click Allow in the next pop-up window

Enter the password you set during application in the next pop-up window and click OK

Click the gear button in the top right corner of Internet Explorer and open Internet Options > Content > Certificates

The certificate is successfully installed in your browser when the screen is like this


You can also click the button Verificar estado in the left side menu, click the link "SOLICITAR VERIFICACIÓN", then select your certificate in the pop-up window and click "OK"


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