How to obtain a Digital Certificate

Overview

A digital certificate (certificado digital) is a file installed in your browser that proves your identity online, letting you complete tax filings, Social Security procedures and other official business from home instead of an in-person appointment. The most common, free option is issued by the FNMT (Fábrica Nacional de Moneda y Timbre).

Requirements

• A valid NIE or DNI
• Access to the specific computer and browser you'll use to complete the process, since the certificate is generated and downloaded on that same device

Step-by-step process

• Request the certificate on the FNMT website using your NIE and an email address — you'll receive a request code
• Book (where required) or attend an accreditation appointment at an authorised registration office (often a Tax Agency or Social Security office) with your ID and request code
• Once accredited, return to the FNMT website on the same computer and browser used to make the request, and download and install the certificate
• Back up your certificate file somewhere secure, since it can also be exported and used on other trusted devices

Required documents

• NIE or DNI
• The request code generated on the FNMT website

Common mistakes

• Requesting the certificate on one computer or browser, then trying to download it from a different one — it won't work, since the process is tied to that specific browser
• Not backing up the certificate file, then losing access to it if the original computer is reformatted or replaced

Practical tips

• If you'll mainly do quick, occasional procedures rather than heavy tax filings, Cl@ve PIN (see 'How to use Cl@ve') may be simpler than installing a certificate
• The FNMT certificate is valid for four years and is free to obtain

How Tuchati can help

Tuchati can walk you through the request and accreditation steps if the process feels unfamiliar.