Tax privileges of EU officials and other servants in Spain

The tax privileges of EU officials in Spain stem from the Protocol (No 7) on the Privileges and Immunities of the European Union, the text annexed to the Treaty on the Functioning of the European Union (TFEU) that governs, among other matters, the special tax regime for officials and other servants of the European institutions. It exempts their salaries from national income tax in exchange for a tax levied by the Union itself.

Technically, the legal instrument is the EU Protocol on Privileges and Immunities, but in Spain it is known above all for its practical effect: the unique tax regime that applies to EU officials living in the country.

What the EU Protocol on Privileges and Immunities means for officials in Spain

The EU Protocol on Privileges and Immunities is a legal text with the same rank as the founding Treaties, currently in its consolidated version published in the Official Journal of the European Union (OJ C 202, 7 June 2016). It does not deal only with tax matters: it also covers the inviolability of the institutions’ premises and archives, the immunity from legal proceedings of the judges of the Court of Justice of the European Union (CJEU) and the diplomatic privileges of permanent representations.

For an EU official or other servant, the relevant part is Chapter V, devoted to officials and other servants of the Union, which contains articles 11 to 16. These articles create a genuinely European tax: a tax deducted at source from the salaries, wages and emoluments paid by the Union, replacing national taxes on employment income.

This protection dates back to the 1965 Merger Treaty (Treaty of Brussels) and has remained essentially unchanged through every subsequent Treaty reform, including the Treaty of Lisbon. The reason is functional: to guarantee the financial independence of people working for supranational institutions and prevent any Member State from putting fiscal pressure on the staff of bodies such as the European Commission, the European Parliament, the European Central Bank or the European Union Intellectual Property Office (EUIPO, based in Alicante).

What article 12 says: the income tax exemption for EU officials and other servants

Article 12 of the EU Protocol on Privileges and Immunities creates a Union tax on the salaries, wages and emoluments paid by the Union to its officials and other servants, and exempts those same amounts from national taxes. In Spain, this means that an official of the EUIPO, the European Commission or any other covered institution does not include their EU salary in the IRPF tax base.

The technical rules for this European tax are set out in Council Regulation (EEC, Euratom, ECSC) No 260/68 (in Spanish) of 29 February 1968, which lays down the conditions and procedure for applying it. The rate is progressive, similar in logic to income tax, but it is calculated and withheld by the institution itself, not by the Spanish Tax Agency (AEAT).

An important nuance: the exemption covers the salary paid by the Union, not every type of income the official or other servant receives. Other income is taxed under its own rules, but the EU salary cannot be used to raise the tax rate applied to that other income: unlike the “exemption with progression” commonly found in double tax treaties, the Protocol does not allow the State to take it into account to increase national tax indirectly.

What article 13 says: the special tax residence rule

Article 13 addresses a different question: where an official who moves to another Member State because of their post pays income tax, wealth tax and inheritance tax. The rule is clear: the official is deemed to keep their tax domicile in the country where they lived before entering the service of the Union, provided the move is solely due to the performance of their duties at a European institution.

In practice, this creates an unusual situation: a Belgian official posted to the EUIPO in Alicante can physically live in Spain (registered with the town hall, with children at school and a home of their own) and yet keep their tax residence in Belgium for income tax, wealth tax and inheritance tax purposes. This legal fiction has generated the most litigation and the most misunderstanding among national tax authorities, including Spain’s.

Which officials and other servants are covered (and who is not)

Not everyone who works for a body with an EU presence is automatically covered by the EU Protocol on Privileges and Immunities. The Protocol itself refers to subsequent regulations of the European Parliament and the Council to define the exact categories of officials and other servants to whom articles 11, 12 (second paragraph) and 13 apply, in whole or in part.

Group	Covered by arts. 12-13?	Applicable tax regime
Permanent officials of EU institutions (Commission, Parliament, EUIPO, ECB, etc.)	Yes	Union tax (Reg. 260/68) + tax residence of origin
Temporary and contract staff of the EU covered by the Staff Regulations	Yes, depending on the category set by regulation	Union tax + tax residence of origin
Local staff hired directly in Spain by an institution	Usually not	Ordinary Spanish income tax rules
Officials of non-European international organisations (UN, NATO, WHO)	No (different or no protocol)	Depends on the applicable headquarters agreement or double tax treaty
Retired officials of EU institutions receiving an EU retirement pension	Specific regime, not always fully equivalent	Has given rise to litigation over the taxation of pensions under Spanish income tax
Judges and staff of the CJEU, Members of the Commission and other senior office holders	Yes, with additional specific rules (arts. 11, 21 and 22)	Union tax + additional immunities

This last area (retired officials of international organisations, including the United Nations or NATO, whose pensions are subject to Spanish income tax) is currently one of the most active fronts of litigation, although technically it is governed by protocols and headquarters agreements other than the EU’s Protocol No 7. In short, the tax privileges of EU officials in Spain are not a uniform benefit: their scope always depends on the specific category of the post.

How the Protocol affects wealth tax, inheritance tax and your main residence in Spain

The exemption under the EU Protocol on Privileges and Immunities does not stop at income tax. Because article 13 preserves the tax residence of origin, an EU official posted to Spain may be treated as a non-resident for wealth tax and inheritance tax purposes. In theory, this should exclude them from Spanish taxation on assets located outside Spain under these taxes, with the non-resident rules applying to the assets they do hold here (typically, their home).

The practical problem is that Spain has been denying these non-residents tax benefits that it grants to residents on their main residence: the wealth tax exemption, inheritance tax reductions, the exclusion from imputed income on real estate under income tax, and the exemption for reinvestment when selling the home. It is precisely this discrimination that gave rise to the best-known case of the Protocol being applied in Spain.

The Riera Consulting case: the complaint to the European Commission over tax discrimination

In 2020, after a detailed study of the regime arising from the EU Protocol on Privileges and Immunities, Alicante lawyer Víctor Riera, managing partner of Riera Consulting, filed a complaint with the European Commission over the unfavourable tax treatment Spain applied to officials of the European institutions (many of them EUIPO staff based in Alicante) who, being non-resident for tax purposes under article 13 of the Protocol, were denied benefits on their main residence in Spain.

The European Commission opened infringement proceedings against Spain: in June 2025 it sent a letter of formal notice, and on 29 April 2026 it issued a reasoned opinion on the discrimination it sees in the taxation of non-residents’ main residences. These are steps within the proceedings, not a court ruling: if Spain does not amend its legislation, the Commission may refer the matter to the Court of Justice of the EU.

This case is largely the origin of the book “El régimen fiscal de los funcionarios y agentes de las instituciones de la Unión Europea” (The tax regime of officials and other servants of the European Union institutions, Editorial Aranzadi, 2024), in which Víctor Riera sets out for the first time in Spanish the full body of international, European and domestic law that applies to this area. To date, no other Spanish firm has published an equivalent monograph on the EU Protocol on Privileges and Immunities as applied to the taxation of officials and other servants, which places Riera Consulting in a unique position to advise on complex cases in this field.

Common mistakes when applying the EU Protocol on Privileges and Immunities

• Declaring the EU salary in your Spanish income tax return out of unawareness, paying tax twice on the same income (once to the Union, once to Spain).
• Adding the EU salary when calculating the rate on other income subject to income tax (rents, a parallel professional activity, etc.), which indirectly increases national tax contrary to the Protocol.
• Assuming the whole family is covered: spouses with their own professional activity in Spain, or children with their own income, do not automatically benefit from the official’s regime.
• Confusing the EU Protocol with the headquarters agreements of other organisations (UN, NATO, WTO), which have different and not always as protective rules.
• Failing to claim the main residence benefits (wealth tax, inheritance tax, reinvestment) when the official is non-resident under article 13, reviewing in each case the tax, the tax year and the appropriate route for the claim while the European proceedings continue.
• Letting tax years in which too much was paid become time-barred, without requesting the correction of returns from the AEAT within the four-year period.

The EU Protocol on Privileges and Immunities vs double tax treaties: how they differ

The EU Protocol on Privileges and Immunities is often confused with a bilateral double tax treaty (DTT), but they are different legal instruments that work in different ways.

Criterion	EU Protocol No 7	Double tax treaty (OECD model)
Nature	Rule with Treaty rank, common to all 27 Member States	Bilateral treaty between two specific States
Who it applies to	Officials and other servants of EU institutions	Any taxpayer with cross-border income between the two signatory States
How double taxation is avoided	Replaces national tax with the Union’s own tax (full exemption of the EU salary)	Allocates taxing rights between the two States or grants a credit for tax paid abroad
Tax residence	Legal fiction: residence of origin is kept (art. 13) for as long as the post lasts	Determined case by case under the treaty’s tie-breaker rules
Supervisory body	European Commission and Court of Justice of the EU	Competent authorities of each signatory State, with a mutual agreement procedure

The difference is not merely theoretical: mistakenly applying the rules of a double tax treaty to an official or other servant covered by the Protocol (or vice versa) is one of the most common causes of errors in this group’s tax returns.

Frequently asked questions

Are the “tax privileges of EU officials in Spain” the same as Protocol No 7?

Yes. What is commonly referred to in Spain as the protocol of privileges for EU officials is Protocol No 7 on the Privileges and Immunities of the European Union; legally they are the same instrument, annexed to the Treaties.

What is the EU Protocol on Privileges and Immunities?

The EU Protocol on Privileges and Immunities is Protocol No 7 annexed to the EU Treaties, which governs the tax exemption of the salaries of officials and other servants of the European institutions and their special tax residence rule.

Which officials are exempt from Spanish income tax under this Protocol?

Permanent officials and certain temporary and contract staff of institutions such as the European Commission, the Parliament, the ECB or the EUIPO are exempt, provided the category of their post is included in the regulations implementing articles 12 and 13.

Do I have to declare in Spain the salary I receive from a European institution?

A salary paid directly by a Union institution is not included in the Spanish income tax base, because it is already subject to the Union’s own tax. Nor can it be taken into account to raise the rate applied to other income.

What is the Union tax that replaces Spanish income tax?

It is a progressive tax, governed by Regulation 260/68, which the institution itself withholds from the salaries of its officials and other servants, replacing national taxes on that same income.

Does the Protocol also exempt me from wealth tax?

Article 13 may make the official a non-resident for tax purposes in Spain, which changes the wealth tax and inheritance tax rules that apply to their assets, although the European Commission considers that Spain discriminates against these non-residents in the taxation of their main residence and issued a reasoned opinion in 2026.

Where am I tax resident if I work for an EU institution in Spain?

Your tax residence remains in the country where you lived before joining the institution, under article 13, even though you physically live in Spain for as long as your posting lasts.

What happens to my income that does not come from the European Union?

Rents, investment income and other income unrelated to the EU salary are not covered by the Protocol and are taxed in Spain under the general rules for residents or non-residents, as applicable.

Do retired officials of international organisations have the same exemption?

Pensions from international organisations other than the EU are not governed by this Protocol but by their own instruments (for the UN, the Convention on the Privileges and Immunities of the United Nations; for NATO, the Ottawa Agreement) and by headquarters agreements, and their taxation under Spanish income tax has been the subject of specific litigation separate from the EU’s.

How does this Protocol differ from a double tax treaty?

The Protocol replaces national tax with the Union’s own tax and applies only to staff of European institutions, whereas a double tax treaty allocates taxing rights between two States for any taxpayer with cross-border income.

How can I claim if the Spanish Tax Agency has applied the Protocol incorrectly?

You can request the correction of your returns from the Spanish Tax Agency within four years, providing documentation that proves your status as an official or other servant covered by articles 12 and 13.

A precise regime, not an automatic benefit

The EU Protocol on Privileges and Immunities offers real protection, but it is defined with surgical precision: it covers the EU salary and the tax residence of origin, not every type of income or every person connected to a European institution. Understanding exactly where that protection ends (and claiming what is due while the proceedings opened by the European Commission continue) is what separates a correct tax return from avoidable overtaxation.

If you are an EU official and are unsure exactly how the Protocol applies to your situation in Spain (salary, tax residence, assets or home), Riera Consulting is the leading Spanish firm in this field, backed by being the only authors of a monograph published by Aranzadi on the tax regime of officials and other servants of the European Union. Visit our dedicated page on tax advice for EU officials or contact our team to review your case.