Tax Treaty Relief in Spain

Spain's bilateral tax-treaty network is one of the broadest in the OECD. Understanding how residents and non-residents each access relief — and which forms and documents are required — is the practical starting point for anyone earning cross-border income in or from Spain.

How many double-taxation treaties does Spain have in force?

As of the Ministerio de Hacienda's consolidated list updated 26 May 2026, Spain has approximately 100 Convenios para Evitar la Doble Imposicion (CDIs) in force, covering all major EU and OECD partners plus a broad range of Latin American, Asian, Middle Eastern, and African jurisdictions. [1] Notable treaties include Germany, France, the United Kingdom, the United States (substantially upgraded by the 2019 Protocol), China, Japan, India, Mexico, Brazil, and Argentina. The authoritative Spanish text of each CDI is published in the Boletin Oficial del Estado; the Ministerio de Hacienda provides consolidated texts at hacienda.gob.es. [2] Major recent additions include Paraguay (CDI force from March 2024) and updated synthesised texts for Mexico and Vietnam. The network is geographically broadest toward Europe and Latin America, reflecting Spain's historical and commercial relationships.

How does the IRPF foreign tax credit work for Spanish residents?

Spanish tax residents who earn income taxed abroad claim relief under Article 80 of Ley 35/2006 (the IRPF Law) via the deduccion por doble imposicion internacional. [3] The deduction is the lesser of two amounts: (A) the actual tax effectively paid abroad on that income, or (B) the Spanish tax that would have applied to that same foreign-source portion at the Spanish effective average rate. This is known as the "menor de" rule. The deduction applies separately to general-base income (employment, rental, business) and to savings-base income (dividends, interest, capital gains). For a worked 2025 example published by AEAT: a taxpayer with EUR 6,000 of foreign employment income bearing EUR 1,100 of foreign tax and EUR 6,000 of foreign capital gains bearing EUR 1,080 of foreign tax obtains a deduction of EUR 1,885.20 rather than EUR 2,180 (the actual foreign tax paid), because the Spanish effective rate on those income portions produced a lower ceiling. [3] The deduction is claimed on Modelo 100 (the annual IRPF return, filed April to June for the prior tax year) and requires supporting documentation from the foreign tax authority — typically a certificate of taxes withheld, issued by the foreign payer or the foreign tax administration.

What reduced withholding rates apply to non-residents under Spanish treaties?

Spain's standard non-resident withholding rates under Real Decreto Legislativo 5/2004 (the IRNR statute) are 19% on dividends from Spanish companies, 19% on interest paid to non-EU/EEA recipients, and 24% on royalties paid to non-EU/EEA recipients. [4] EU and EEA recipients benefit from 0% on interest (EU Interest-Royalties Directive) and 0% on dividends where a parent holds 5% or more for one year or more (EU Parent-Subsidiary Directive). Bilateral CDIs reduce or eliminate withholding for non-EU partners. The table below shows illustrative treaty rates for key partner countries (rates are per the in-force CDI for each country; verify the current consolidated text before relying on them):

Rates shown are the CDI caps; the payer applies whichever is lower — the CDI cap or the domestic IRNR rate. Confirming the applicable rate requires reading the specific CDI article covering dividends (typically Article 10), interest (Article 11), or royalties (Article 12).

How does the residence tiebreaker operate in Spanish treaties?

When an individual is treated as tax-resident in both Spain and another treaty state under each country's domestic law, Spanish CDIs resolve the conflict via the OECD Model Article 4 cascade, applied in strict sequential order. [5] First: permanent home — the state where the individual has a habitual dwelling available on a permanent basis. Second: centre of vital interests — the state with which personal and economic relations are closer (family location, primary employment, community ties). Third: habitual abode — where the individual is most frequently present (this is not simply a calendar-day count but an examination of habitual patterns). Fourth: nationality. Fifth: mutual agreement between the two competent authorities. The Spanish Tribunal Supremo has confirmed that a foreign tax-residency certificate issued explicitly for CDI purposes is binding on AEAT — the Agency cannot disregard it or substitute its own assessment of the facts. A taxpayer asserting foreign treaty residence notifies AEAT via Modelo 030 (census change form) and provides the foreign certificate. Without the certificate, AEAT continues to assert Spanish residency.

What is the procedure for non-residents to claim treaty rates via Modelo 210?

Non-residents earning Spanish-source income file Impuesto sobre la Renta de no Residentes (IRNR) returns using Modelo 210. [4] To apply a treaty-reduced withholding rate on dividends, interest, or royalties, the non-resident recipient enters the CDI percentage limit in box 25 ("Porcentaje convenio") and the resulting capped tax in box 26 ("Limite convenio") of the Modelo 210 settlement section. The required supporting document is a certificado de residencia fiscal issued by the recipient's home tax authority that explicitly states the recipient qualifies as a treaty resident under that CDI — a generic residence certificate is not sufficient. The certificate must be current (AEAT treats certificates older than one year from issuance as expired for private-sector recipients). If the Spanish payer applied the standard domestic rate at source rather than the treaty rate, the non-resident files Modelo 210 as a refund claim. The refund window is four years from the end of the withholding declaration period. Refund processing typically takes 12 to 24 months. For 2025-accrual income the standard Modelo 210 deadline falls within the first 20 calendar days of April, July, October, or January depending on income type.

How does the Beckham regime interact with treaty access?

The regimen especial de impatriados under Article 93 of the IRPF Law (commonly called the Ley Beckham), reformed by Ley 28/2022 effective 1 January 2023, permits qualifying workers, entrepreneurs, and digital nomads who become Spanish tax residents — after at least five years of prior non-residence — to pay IRNR at a flat 24% on Spanish-source income up to EUR 600,000 (47% above that threshold) for the year of arrival plus five subsequent years. [6] The regime excludes worldwide income: foreign-source income does not enter the Spanish base under the regime. AEAT's position, confirmed in binding rulings including Consulta V0204-18, is that Beckham electors remain Spanish tax residents for CDI purposes even though they pay IRNR. This means Beckham electors can in principle invoke Spanish CDIs to limit foreign withholding on income from treaty-partner states. However, because that foreign-source income is outside the Spanish IRNR base, the domestic deduccion por doble imposicion internacional under Article 80 IRPF is not available to Beckham electors for the same income — the deduction assumes the foreign income is included in the Spanish base. Whether a particular treaty partner accepts the Beckham elector as a Spanish treaty resident varies by competent authority and warrants specific verification.

For a broader introduction to becoming — and remaining — a Spanish tax resident, see the Spain country overview. Country-level context for how Spain's rules compare across the EU is at the Spain jurisdiction page.

Every taxpayer's situation turns on facts specific to their income streams, residential history, and the exact text of the applicable CDI. Consult a qualified tax professional registered with the Consejo General de Economistas — Registro de Economistas Asesores Fiscales (REAF) or a member of the Colegio de Abogados for advice applicable to your circumstances.