What is a Spanish Digital Certificate?

A digital certificate (often the FNMT certificate) is a secure identity credential that lets you access Spanish government portals and sign online submissions. It is not the same as an NIE — but in practice, many online procedures assume you already have an NIE.

Who needs a digital certificate?

You file Spanish tax forms online (e.g. Modelo 210 as a non-resident owner/landlord)
You interact with AEAT (Agencia Tributaria) portals for taxes or registrations
You need to access or sign administrative procedures remotely (common for non-residents)
You want a simpler "self-service" path instead of relying on a representative for every filing

When does this apply?

You typically need a digital certificate when you want to do things online — especially tax submissions and updates in official portals. If you own Spanish property or earn Spanish rental income, you'll often reach a point where online access becomes the fastest (sometimes the only practical) route.

Common dependency: the certificate process usually expects an NIE (and identity verification). Some users complete filings via a representative instead, but a certificate is still a valuable "unlock" for ongoing admin.

What happens if you don't have one?

You may be forced into slower in-person or representative-led processes
You may not be able to submit or manage some procedures fully online
Deadlines can become harder to meet if you depend on third parties at the last minute
You may have limited visibility in portals (status, notices, submissions)

Validity and renewal

FNMT digital certificates are valid for 5 years from the date of issue. After that, you need to renew or request a new one.

You can renew online up to 60 days before your certificate expires — no need to visit an office again
If your certificate has already expired, you must request a new certificate from scratch (including identity verification)
Amanda will ask for your certificate expiry date so it can warn you in advance when renewal is approaching — giving you time to act before you lose online access

How to obtain a digital certificate (FNMT)

Typical steps

Start the request on the FNMT website (choose the certificate type for individuals)
Prove your identity (commonly via an in-person verification step, depending on your route)
Download/install the certificate on the same device/profile used during the request
Optional but recommended: export/backup securely (so you don't lose access after a reinstall)

Practical notes

Certificates can be device/browser dependent. If you change machines, you may need to reinstall from a backup.
Some people prefer an alternative login method (e.g. Cl@ve) depending on the procedure — but the FNMT certificate remains widely accepted for tax/admin tasks.
If you file through a representative, you might not need your own certificate immediately — but it's still useful for long-term autonomy.

Official authority

The most common personal digital certificate used for Spanish procedures is issued by FNMT (Fabrica Nacional de Moneda y Timbre). Spanish tax portals are run by AEAT (Agencia Tributaria).

How Amanda uses this

Amanda asks about a Spanish digital certificate because many Spanish obligations (especially tax filings like Modelo 210) are often completed online via AEAT portals. If you don't have a certificate, Amanda may flag some steps as blocked or needs info, or recommend alternative paths (e.g. using a representative). When you confirm you have a digital certificate in the Identity module, Amanda knows you can self-file online.

If you provide the expiry date, Amanda will track the certificate's validity and warn you when renewal is approaching (starting 6 months before expiry). This ensures you never lose online access to AEAT portals by letting a certificate expire without realising.