Rosario Molina is 79 and has lived in Nerja since she retired. She receives a small widow's pension from the German pension fund her husband paid into, and every year the fund asks her for a certificate of tax residence in Spain. Rosario has no computer, does not know what Cl@ve is (the Spanish government's electronic identification system) and her electronic identity card has not been activated for years. For the last two years a neighbour applied for it with his own electronic signature, "because it is quicker that way". This year the neighbour has moved away.
The certificate can be obtained without an electronic signature of your own. There are three legitimate routes, and the one the neighbour used is not among them.
The routes the Agencia provides
The Agencia Tributaria, the Spanish tax agency, explains on its website that applying online requires you to identify yourself with an electronic certificate, an electronic identity card or Cl@ve PIN, and that by those routes the certificate is generally produced immediately. For anyone who has none of them, the same page describes two alternatives: going in person to an office, preferably with an appointment, and submitting Modelo 01, the application form for certificates; or acting through a registered authorised person or a social collaborator.
The rule that specifically regulates the residence certificate, the second additional provision of Order EHA/3316/2010, confirms this from another angle: the application may be made electronically or on paper, and the certificate is issued in the same medium in which it was requested.
| Route | What Rosario needs | How she receives the certificate |
|---|---|---|
| In person | An appointment, her identity card and Modelo 01 stating the purpose and the country | On paper, by post or at the office, as she indicates |
| Registered authorised person | To grant, once, an authorisation to someone she trusts | The authorised person downloads it from the website |
| Representative or social collaborator | A signed document of representation | The representative obtains it and hands it to her |
Going in person, calendar in hand
Rosario gets an appointment at her local Agencia office on Thursday 5 November 2026. There she submits Modelo 01. If the application needs review and is not issued on the spot, the Order sets a maximum of ten working days to issue the certificate or to communicate that it will not be issued.
- Application: Thursday 5 November.
- Working days: 6, 9, 10, 11, 12, 13, 16, 17, 18 and 19 November.
- Deadline for issue: Thursday 19 November, if there are no local holidays in between.
- Posting to the address given: a few more days, which do not depend on the Agencia.
Where does the paper go? According to the Agencia, when the applicant is not obliged to deal with it electronically, the certificate is sent by post to the address given in the application; if none was given, to the address for notifications on the applicant's register return and, failing that, to the tax address. It is also made available on the website. For Rosario that order matters: she should give an address where someone will collect the post.
If the German fund needs the document before 1 December, Rosario will make it. If it needed it on 20 November, she would be cutting it fine. The arithmetic is simple, but it has to be done before booking the appointment, not afterwards. The detail of why it is sometimes issued on the spot and sometimes not is in how long the certificate takes.
Registered authorisation: one step, several years sorted
If Rosario is going to need the certificate every year, going in person obliges her to book an appointment each time. An authorisation entered in the Agencia's register allows another person, for example her daughter or a law firm, to apply online on her behalf. Someone without an electronic signature can grant it by going to an Agencia office or, under the rules of the register of authorisations, by a document with a signature witnessed by a notary, which the authorised person then submits.
The authorisation can be limited to certain procedures and lasts for a period chosen when it is granted. It is a decision worth taking calmly: the authorised person has access to the tax data of the person granting it, within the limits authorised.
If you would rather we handled the certificate for you each year, you can say so in the certificate form and we will explain how to grant representation for that specific procedure.
One-off representation
The Ley General Tributaria (the General Tax Act) allows you to act through a representative, who may be a tax adviser, under its article 46. And article 71 of the Regulations on tax management and inspection requires that, when a certificate is requested through a representative, the representation be proved. In practice, that means a document signed by Rosario identifying the representative and the procedure, or her appearing in person. Social collaborators, who are professionals with an agreement with the Agencia, may file applications on behalf of their clients with the representation appropriate in each case.
What should never be done
Applying for a certificate in your name with a neighbour's or a relative's electronic signature means that a third party is acting before the administration without proven representation, using credentials that are theirs and not yours. If something goes wrong, neither the certificate nor the application is backed by the person they claim to be. The same applies the other way round: your Cl@ve codes or your certificate should not be handed to anyone, not even to someone helping you with good intentions. That is what authorisation exists for.
If you are not in Spain when you need it
Rosario spends Christmas in Germany with her sister-in-law. If the fund asked her for the certificate during those dates, she could not go to the office. There are two ways to prevent that: grant the authorisation before travelling, or sign a document of representation in favour of whoever will handle it. If the document were signed before a foreign notary, it will usually need the appropriate apostille and, if it is not in Spanish, a translation. An electronic signature, in any event, remains the most convenient option for anyone who can obtain one.
And if Spain asks someone who lives abroad for a certificate?
That is the opposite case: a person who lives in another country and needs to prove it to Hacienda, as the Spanish tax office is commonly called, for example for their Modelo 210 (the non-resident return). That certificate is not issued by the Spanish Agencia but by the administration of the country of residence, through its own application routes, which it is not for us to describe. What we can do is tell their adviser there exactly what content the document needs in order to work in Spain.
Before applying by any route
Whichever route you take, the application is more likely to succeed first time if your tax address is up to date and your latest income tax return has been filed. The Order also requires you to state the recipient, the purpose and the country, and allows supporting documents to be attached. For Rosario's German fund, the sensible thing is to ask for the certificate for the purposes of the treaty with Germany; the difference is explained in ordinary and treaty certificates. If you moved recently and did not report it, start with your tax address.
The Salama Tax page sums up the procedure and what is worth checking beforehand. The route you choose changes how you apply, not what the Agencia checks or the outcome, which depends on the data on record.