Bruno Ferreira is an architect. He was born in Porto and has lived in Seville since 2021. A Brazilian publisher is going to pay him 18,000 € for the rights to a book on Andalusian courtyards. Before making the transfer, the publisher's finance department writes to him: without a residence certificate "valid for treaty purposes" they will withhold 4,500 €; with one, 1,800 €. Bruno logs on to the website of the Agencia Tributaria, the Spanish tax agency, downloads the first certificate he finds, sends it and gets an answer three days later: it will not do. He had asked for the ordinary one.
Both documents are issued by the same administration, carry the same letterhead and look very much alike. The difference lies in a single sentence, and that sentence is what the payer looks at.
What each document actually states
Order EHA/3316/2010, in its second additional provision, regulates two different forms of certificate of tax residence in Spain. The one in Annex IV proves, in general terms, residence in Spanish territory. The one in Annex V is issued "to prove the status of resident in Spain for the purposes of the provisions of a Convention for the avoidance of double taxation signed by Spain".
The Agencia itself explains it this way on its website: in the certificate for countries with a treaty, the Spanish authorities certify that you are resident "within the meaning of the Convention" between Spain and the country you name; in the certificate for countries without a treaty, they certify only that you are resident in Spain. Both are issued in Spanish and English.
| Ordinary (Annex IV) | Treaty (Annex V) | |
|---|---|---|
| What it states | That you are tax resident in Spain | That you are resident in Spain within the meaning of a specific treaty |
| Names another State | No | Yes, the one stated in the application |
| Can be used to invoke a treaty | Normally not | That is its purpose |
| Typical use | Banks, public bodies, procedures with no other State involved | Foreign payers, relief at source, forms from other tax administrations |
The underlying reason is that a treaty protects only someone who is resident "for the purposes of the treaty", and that concept does not always coincide with the one in domestic law. When the administration issues the second form, it is stating something more committing than when it issues the first.
The box that decides which one you receive
The application is not a blank form. Under the same Order, it must state the purpose for which the certificate is requested: the recipient, the purpose and, where relevant, the country or territory where it is to take effect. Had Bruno written "Brazil" and "application of the treaty", he would have received the right form first time.
Three common mistakes when filling it in:
- Leaving the purpose generic ("various formalities") when there is a foreign payment behind it.
- Asking for a single treaty certificate to use before two different countries: each one names one State.
- Asking for a treaty certificate for a country with which Spain has no treaty in force. In that case only the ordinary one is possible, and it is worth knowing before promising the payer anything.
If you have in front of you a request from a payer or a foreign administration and do not know which of the two they want, you can send us the email or the form through the certificate form and we will read it before the application is filed.
Bruno's money, step by step
Suppose the publisher has already paid, withholding 4,500 € because the certificate arrived late. What part can be recovered in Spain and what part cannot?
Article 80 of the Spanish Income Tax Act (the IRPF Act) allows you to deduct the lower of two amounts: what was actually paid abroad in a similar tax, or the result of applying the effective average rate to the part of the taxable base taxed abroad. The average rate is found by dividing the net tax due by the taxable base, multiplied by a hundred and rounded to two decimals.
- Imagine that Bruno's return shows net tax due of 14,200 € on a taxable base of 50,000 €. Average rate: 14,200 / 50,000 × 100 = 28.40 %.
- Limit by average rate: 18,000 × 28.40 % = 5,112 €.
- Foreign tax the treaty allowed the other State to charge: 1,800 €.
- Deduction that can reasonably be defended in Spain: 1,800 €.
- Excess withheld: 4,500 − 1,800 = 2,700 €.
Those 2,700 € are not a Spanish problem. The treaty article that eliminates double taxation usually refers to the tax the other State may charge in accordance with the treaty itself, so the excess is claimed there, under that administration's procedure, deadlines and language. How that is done in each country is confirmed by the client's adviser in that country; we prepare what has to be provided from here. The mechanism of the deduction is developed in the guide to international double taxation relief.
Situations where the ordinary one is enough
Not every procedure calls for the treaty certificate. The ordinary one is usually sufficient when nobody is going to invoke a treaty:
- A financial institution that needs to know where you pay tax in order to classify the account (we explain it in which certificate the bank wants).
- A public body that wants to check your residence for a grant or a public tender.
- The sale of a property located in Spain by someone who lives here. The Order allows you to ask for the additional details section to state that you are "subject to Personal Income Tax", precisely so that you can show the buyer that you are not a non-resident.
The Order also allows the certificate, at the taxpayer's request, to record that you have informed Hacienda, as the Spanish tax office is commonly called, that you obtained income in a particular country, with the description you provide. It is a useful addition when the foreign payer wants to see that the income has been declared in Spain.
When the other administration brings its own form
Some States do not accept the Spanish form and require residence to be certified on one of their own. The second additional provision anticipates that case: the Agencia may complete the certification contained in the foreign form provided that its content is equivalent to that of Annexes IV and V. If the form is not in Spanish or in another official language of Spain, a translation may be requested.
In practice this means bringing the form already filled in as far as the taxpayer's part is concerned and explaining in the application why it is being submitted. Anyone who sends it blank usually receives the standard Spanish form, which is exactly what the payer did not want.
When another country is involved, asking for the ordinary certificate is hardly ever the prudent option: if the recipient needed the treaty one, the time spent on the first application is lost and the payment is often made with the maximum withholding. Nor is there any guarantee the other way round: the fact that the Agencia issues the treaty certificate does not oblige the other State to accept it if its own rules require something more. What documentation each foreign administration accepts is confirmed by the client's adviser there.
The same dilemma seen from abroad
If you are the one living abroad with income in Spain, the logic is reversed but the distinction remains. Article 7 of Order EHA/3316/2010 requires, in order to apply a treaty on Modelo 210 (the Spanish non-resident income tax return), a certificate from the country of residence that expressly states that the taxpayer is resident "within the meaning defined in the Convention". To deduct expenses as a resident of another European Union State, on the other hand, what is required is a residence certificate issued by that State's tax authority, without that wording. Your own administration decides which version it issues; what we can tell you is which one the Spanish administration needs, and that is explained in the guide to the two certificates.
Taxpayers under the inbound workers' regime
Article 120 of the IRPF Regulations provides that taxpayers who have opted into the special regime in article 93 (the regime for workers moving to Spain, often called the Beckham regime) may apply for the certificate of tax residence in Spain. For the treaty certificate, the same article refers to the cases the Ministry specifies on condition of reciprocity. In other words: the ordinary one, yes; the treaty one, only where provided for. Before committing to a foreign payer to deliver a treaty certificate while under that regime, it is worth checking.
How to avoid repeating Bruno's story
The sequence that works is short: read exactly what the recipient is asking for, identify the State, check that a treaty is in force, tick the right purpose and make sure the Spanish tax register supports what the certificate is going to state. If the register does not back it up, the application ends in a refusal, a scenario we deal with in why a certificate is refused. And when two countries both claim you as a resident, the problem is no longer one of form but of substance: we look at it in who issues the certificate if two countries consider you resident.
The Salama Tax page covers the rest of the procedure: what is checked before applying, how long the certificate lasts and how it is used each year. No certificate changes where you live; it only proves what is already on record, and that is the starting point for any decision.