The 2013 UK-Spain Double Taxation Convention works in two directions, and the asymmetries between them trap clients on both sides. Spanish-resident landlords with UK property keep Article 6 source-state taxing rights with the UK, plus the full Non-Resident Landlord scheme withholding, plus the 60-day NRCGT return, plus ATED if the structure runs through a Spanish sociedad limitada and the dwelling tops £500,000. UK landlords emigrating to Spain meet the TCGA 1992 s.10A temporary-non-residence trap and, since 6 April 2025, the new long-term-resident IHT regime that can keep worldwide assets in UK IHT for up to a decade after departure.

The Spanish wealth tax adds an asymmetry that catches Madrid-resident clients in particular. Spanish impuesto sobre el patrimonio plus the Solidarity Tax on Large Fortunes (Ley 38/2022) apply to UK property held by Spanish residents. The UK imposes no wealth tax. There is nothing on the UK side to credit, so the wealth charge is structurally one-way. The Multilateral Instrument modifications, effective from January 2023 for UK withheld taxes and April / 6 April 2023 for UK CT and Income Tax / CGT, imported a Principal Purpose Test that is now live in the Convention.

This page walks the allocation table, six worked examples (Spanish-resident individual landlord, Madrid high-net-worth wealth-tax case, Article 4 dual-resident tie-breaker, UK emigrant s.10A trap, Spanish sociedad limitada holding an ATED dwelling, FIG inbound new resident, long-term-resident IHT tail case), and the 13 most common Spanish-bilateral landlord questions. For the framework that underlies every UK treaty, see our UK tax treaties framework guide. For the NRL mechanics that the treaty does not displace, see our non-resident landlord scheme complete guide. For the 60-day NRCGT rules, see our NRCGT rates and reporting page.

The 2013 Convention and the 1976 treaty it replaced

The UK-Spain Double Taxation Convention was signed in London on 14 March 2013 and entered into force on 12 June 2014. UK effective dates: withheld taxes 12 June 2014; Corporation Tax 1 April 2015; Income Tax and Capital Gains Tax 6 April 2015. It is published at gov.uk under "Spain: tax treaties" and follows OECD Model Tax Convention 2017 form. The 2013 Convention replaced the 1976 UK-Spain treaty, which had a narrower scope and (most relevantly for landlord cases) no indirect-disposal provision in its capital-gains article.

The supersession matters. Adviser memoranda and competitor pages from before 2014 sometimes still describe a Spanish-resident shareholder selling shares in a UK property-rich company as outside UK CGT under the 1976 form. That was true under the 1976 treaty; it is not true under the 2013 Convention. Article 13(4) of the 2013 form and the UK domestic NRCGT regime under TCGA 1992 Schedule 1A both apply. The 2013 Convention also incorporated competent-authority machinery (Article 25 Mutual Agreement Procedure) and the foundations for the MLI PPT that came in from January 2023.

The OECD-model articles that matter for the Spanish-bilateral landlord case are Article 4 (residence and tie-breaker), Article 6 (income from immovable property), Article 13 (capital gains, including the 13(4) indirect-disposal extension), Article 23 (elimination of double taxation by Spanish foreign tax credit), and the MLI-imported Principal Purpose Test that overlays them all from January 2023 onwards.

The two-way credit asymmetry table

Spanish-resident landlords with UK property and UK landlords with Spanish property need to self-identify against this table before reading any of the worked examples below. The table sets out who has primary taxing rights on each item, what the UK domestic charge looks like on the UK side, and what the Spanish-side outcome is.

Item UK source Spain source UK side outcome Spain side outcome
UK rental income, Spanish-resident landlord YES NO UK tax under ITTOIA 2005 Part 3; NRL withholding 20% unless NRL1 Spanish IRPF with FTC for UK tax paid (Art 23 credit method)
Spanish holiday-home rental, UK-resident landlord NO YES UK tax on worldwide income (arising basis); FTC for Spanish tax (TIOPA 2010 s.18) Spanish non-resident tax under IRNR
UK property gain on disposal, Spanish-resident seller YES NO NRCGT under TCGA 1992 s.1A; 60-day return; 18% / 24% residential Spanish CGT with FTC for UK CGT paid
Spanish property gain on disposal, UK-resident seller NO YES UK CGT on worldwide gains; FTC for Spanish CGT paid Spanish CGT under IRNR or IRPF
Spanish wealth tax on UK property holdings N/A (UK has no wealth tax) Spain charges on worldwide assets (subject to regional bonification) NO UK side mirror, nothing to credit Impuesto sobre el patrimonio plus possible SGF; no foreign equivalent to credit on UK property
UK ATED on Spanish sociedad limitada holding a UK dwelling worth more than £500,000 YES NO ATED under FA 2013 Part 3 (non-resident company in scope) N/A on ATED side; Spanish CT applies on the Spanish SL's worldwide income

The 2013 Convention allocates taxing rights to the source state for immovable property (Article 6) and immovable-property gains (Article 13). Both sides operate foreign tax credit on the resident side under Article 23. The asymmetry that catches Spanish-resident clients is the wealth tax: it has no UK mirror, so the Spanish wealth tax paid on UK property cannot be crystallised as a UK credit. The UK simply does not impose wealth tax for the credit to be set against.

Example one: Sr Hernandez, Spanish-resident individual landlord

Sr Hernandez is resident in Madrid throughout 2026/27, UK-non-resident under the Statutory Residence Test, and a Spanish citizen. He owns a Bristol BTL flat let to a tenant. Annual gross rent £16,200; letting agent's fees £1,620; mortgage interest £3,800; service charge and repairs £1,900. The position works as follows.

Treaty: UK has primary taxing rights under Article 6. NRL: the letting agent withholds 20% (£3,240 a year) unless Sr Hernandez holds NRL1 approval; he applies on instructing the agent. UK Self-Assessment: Sr Hernandez registers for SA and files SA100 plus SA105 annually. Rental income £16,200 minus deductible expenses (excluding mortgage interest, restricted to a 20% basic-rate tax credit under ITTOIA 2005 s.274A) gives taxable property profit £12,680. The mortgage-interest tax credit £760 (20% of £3,800) reduces UK Income Tax. At basic rate, UK tax on £12,680 is £2,536, minus the £760 credit gives £1,776 UK Income Tax due. The £3,240 withheld appears on the agent's NRL6 and is credited against UK SA liability, so a UK refund of £1,464 is due.

Personal allowance: Spanish nationals retain the UK personal allowance under domestic law (the post-Brexit framework preserves the personal allowance for EEA nationals via ITA 2007 s.56; verify currency at consultation date). Spanish side: Sr Hernandez reports the UK rental on his Spanish IRPF return. Under Article 23 of the Convention (credit method), Spain gives FTC for UK Income Tax paid (£1,776) against any Spanish IRPF on the same income. Spanish IRPF on foreign property income runs to marginal-rate scales by income band. If the Spanish marginal rate exceeds the UK effective rate, residual Spanish tax is payable; if not, no residual.

Example two: Sra Vazquez, Madrid-resident, the wealth-tax asymmetry

Sra Vazquez is Madrid-resident, high-net-worth, UK-non-resident under SRT. She owns a £4.2m central-London townhouse held in her own name plus a £1.6m Brighton flat let to a tenant. The Spanish wealth tax position picks up both properties.

Spanish impuesto sobre el patrimonio: Spanish residents are liable on worldwide assets, so both UK properties enter Sra Vazquez's Spanish wealth tax base at market value. The state-level scale runs from 0.2% to 3.5% across bands with a personal exemption of around €700,000 plus €300,000 for the principal residence (verify at consultation date). Madrid regional bonification: the Comunidad de Madrid currently applies a 100% bonification, effectively reducing state-level wealth tax to zero for Madrid residents (politically contested, verify currency). Solidaridad de las Grandes Fortunas (SGF): the temporary state-level Solidarity Tax on Large Fortunes enacted by Ley 38/2022 imposes an additional state-level wealth charge above the €3m plus €700,000 exemption. Sra Vazquez's £4.2m London townhouse alone pushes her over the SGF threshold. The Madrid regional bonification does not eliminate SGF; SGF was specifically designed to override regional bonifications.

UK side: the UK has no wealth tax. There is nothing to credit on the UK side for Spanish wealth tax or SGF paid. The Spanish-side wealth charge is structurally one-way. UK IHT: Sra Vazquez's UK property is within UK IHT regardless of her LTR status because UK situs property is always in UK IHT. At her death, the £4.2m London townhouse and £1.6m Brighton flat are in her UK IHT estate. NRB £325k plus RNRB up to £175k (with taper above £2m net estate), IHT at 40% on the rest. Total UK IHT exposure on the UK property is roughly £2.1m before reliefs and spousal exemption. Spanish impuesto sobre sucesiones y donaciones may also apply (heavily devolved by region; Madrid 99% bonification; other regions higher). The operational implication: UK-property holding cannot be wealth-tax-neutral for Spanish residents, and the IHT cross-exposure is the other end of the same problem.

Example three: Sra Romero, Article 4 tie-breaker

Sra Romero was born in Madrid, does UK consulting work for a London firm, spent 178 UK days in 2026/27, rents a flat in Battersea, and retains the family home in Madrid (husband and adult children in Madrid). SRT analysis: 178 UK days is within the sufficient-ties test range; 4 ties present (accommodation, work, 90-day, family), so she is UK-resident under SRT. Spanish domestic law: more than 183 days in Spain plus centre of vital interests in Spain, so she is Spanish-resident. She is dual-resident.

The Article 4 cascade: permanent home is available in both states, so the first limb does not resolve. Centre of vital interests: family, economic and personal connections closer to Madrid (husband, children, principal residence, social ties), so this limb resolves to Spain. The cascade stops here; habitual abode, nationality, and mutual agreement procedure are not reached. For Article 4 treaty purposes, Sra Romero is treaty-resident in Spain. UK retains source-state taxing rights on her UK consulting income (Article 14 or 7) and on any UK property income or gains (Articles 6 and 13). For non-treaty UK purposes (SA registration, NRL withholding on any UK property) she remains UK-resident under SRT.

Example four: Mr Brown, UK emigrant and the s.10A 5-year trap

Mr Brown was UK-resident throughout 2018/19 to 2025/26 (UK-resident in 4 or more of the 7 tax years before departure, so he satisfies the s.10A preceding-4-of-7 gateway). He moves to Marbella in June 2026 intending to settle permanently and retains his Manchester BTL flat (let throughout). In 2028/29, while Spanish-resident, he sells a Spanish-purchased portfolio of non-UK shares for a £180,000 gain. In 2030/31, after 4 complete tax years non-UK-resident (2026/27 to 2029/30), he returns to the UK because of family reasons.

The s.10A position: Mr Brown's period of non-UK residence was 4 complete tax years, within the "5 years or less" temporary-non-residence window. He had been UK-resident in 4 or more of the 7 preceding tax years. He is therefore a temporary non-resident. Effect: the £180,000 gain on the non-UK shares disposed during non-residence is deemed to arise in the year of return (2030/31) and is chargeable to UK CGT in that year. The 5-year clock is calendar-tax-year, not rolling; he would need more than 5 complete tax years non-UK-resident to escape recapture.

UK property gain (separate analysis): Mr Brown's Manchester BTL is in NRCGT throughout his non-residence under TCGA 1992 s.1A. If he sells it while non-resident, the 60-day NRCGT return and UK CGT at 18% / 24% applies with no s.10A overlay (UK land is already in NRCGT regardless of his return). Spanish side: Spain taxes him on the £180,000 gain in 2028/29 under Spanish CGT (he is Spanish-resident at the time of disposal). The Spanish CGT he pays in 2028/29 is creditable against the UK CGT charged in 2030/31 under Article 23, but only the lower of the two amounts is the operative credit. If Spanish CGT exceeds UK CGT on the same gain, the excess Spanish CGT is not recoverable from the UK side. Planning lesson: to break the s.10A trap, Mr Brown needs more than 5 complete tax years non-UK-resident. A 4-year stint with planned return crystallises the recapture risk.

Example five: Inversiones Iberica SL, Spanish company holding UK BTL

Inversiones Iberica SL is a Spanish sociedad limitada, Spanish-resident as a company, UK-non-resident as a company. It buys a London BTL flat in 2026 for £780,000 (above the £500,000 ATED threshold). Annual rental £36,000 to an unconnected tenant.

NRL: the letting agent withholds 20% (£7,200 a year) unless Inversiones Iberica holds NRL2 approval. UK CT on rental: Inversiones Iberica is within UK Corporation Tax under CTA 2009 Part 4. Rental profit after deductible expenses is taxed at UK CT rates with the small profits rate at 19% likely available (augmented profits below £50,000). The CIHC carve-out at s.18N(2)(b) CTA 2010 applies (commercial letting to unconnected tenant), preserving the small profits rate.

ATED: UK dwelling worth £780,000 falls in the £500,001 to £1m band, 2026/27 charge £4,600. Inversiones Iberica files the ATED return by 30 April 2026 and pays £4,600 unless a relief applies. The s.133 FA 2013 property-rental-business relief is available (commercial letting to unconnected tenant), but must be claimed on the return; failing to file even where relief applies triggers Schedule 55 FA 2009 penalty points and exposure to the One-to-Many campaign. NRCGT on disposal: when sold (say in 2032 for £960,000, gain £180,000), the 60-day NRCGT return is required; UK CT on the chargeable gain at the prevailing CT rate applies. ATED-related CGT was abolished from 6 April 2019, so gains now sit in NRCGT.

MLI Principal Purpose Test: the MLI imported a PPT into the 2013 Convention from 1 January 2023. If the principal purpose of any treaty-benefit claim by Inversiones Iberica appears to HMRC to be obtaining the benefit (rather than commercial substance), treaty benefits can be denied. For the standard commercial-letting Spanish SL structure with genuine economic activity in Spain, the PPT is typically not engaged. Treaty-shopping structures (Spanish SL inserted purely for treaty access) are at risk. Spanish side: the Spanish SL is within Spanish corporate income tax on its worldwide income. UK CT paid on UK rental is creditable in Spain under Article 23 and Spanish domestic FTC rules. The structural Spanish-incorporation route typically yields no UK-tax saving on rental and gain; reasons are usually Spanish-side commercial, fiduciary, or asset-protection driven.

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Example six: Sra Castro, FIG inbound new resident

Sra Castro is a Spanish citizen, resident in Madrid through 2025/26, never previously UK-resident, never previously claimed FIG or remittance basis. She moves to London in September 2026 for a new UK employment, becomes UK-resident under SRT from 2026/27, and retains a Madrid rental flat generating €18,000 a year.

FIG qualifying-new-resident test (ITTOIA 2005 s.845B(1)): UK-resident 2026/27 (yes); not UK-resident in any of the preceding 10 years (yes); not previously disqualified (yes); over age 10 at the start of 2026/27 (yes). She qualifies. Duration up to 4 tax years (2026/27 to 2029/30), per-year claim under s.845A. Coverage: Spanish rental income is foreign property income within s.845H categories. If she claims FIG for 2026/27, the Spanish €18,000 rental is exempt from UK tax for the year. Cost: claiming FIG forfeits her UK personal allowance, dividend allowance, and CGT Annual Exempt Amount for 2026/27. Arithmetic: she compares the lost UK personal allowance (£12,570 multiplied by 20% gives £2,514 of UK tax shielded if she did not claim) against the UK tax on £18,000 foreign rental that the claim avoids (£18,000 multiplied by 20% basic rate gives £3,600 at most, less the Spanish IRNR or IRPF FTC). For modestly sized foreign income, the personal-allowance loss can outweigh the FIG benefit. Claim deadline: 31 January 2028 for the 2026/27 claim per s.845A.

Example seven: Mr Wright, LTR IHT tail

Mr Wright is UK-born, UK-domicile of origin, UK-resident throughout 2008/09 to 2025/26 (18 of the preceding 20 tax years). He moves to Valencia in 2026 with the intent to settle permanently and retains a UK BTL portfolio.

Under the FA 2025 long-term-resident regime (in force from 6 April 2025), Mr Wright is a long-term UK resident with UK-residence in 18 of the previous 20 tax years (well above the 10-of-20 threshold). On departure he remains LTR for the IHT tail period. With 18 prior UK-resident years, the required consecutive non-UK tax years to lose LTR is approximately 8 years. His IHT exposure to worldwide assets therefore extends until tax year 2034/35 at the earliest. His Spanish-acquired Valencia property is within UK IHT (worldwide assets) for at least 8 tax years post-departure. His UK BTL portfolio is in UK IHT throughout regardless of LTR status (UK situs).

Pre-FA-2025 advice now wrong: any pre-2025 planning that assumed "stay non-UK 3 years to escape UK IHT" is obsolete for individuals with high prior UK-resident years. Spanish-side IHT: Spain has its own impuesto sobre sucesiones y donaciones (heavily devolved by region; Madrid 99% bonification; others higher). UK IHT paid on the same assets is creditable against Spanish IHT under Spanish domestic law (the 2013 Convention has no IHT article; the cross-credit is Spanish-domestic).

The MLI and the 2024 architecture

The Multilateral Instrument modifications to the 2013 UK-Spain Convention are live for UK withheld taxes from 1 January 2023, UK Corporation Tax from 1 April 2023, and UK Income Tax and Capital Gains Tax from 6 April 2023. The most consequential modification is the Principal Purpose Test that overlays the entire Convention. Treaty benefits can be denied where obtaining the benefit was a principal purpose of any arrangement, unless granting the benefit would accord with the object and purpose of the relevant treaty provisions. The synthesised text of the 2013 Convention as modified by the MLI is published at gov.uk Spain tax treaties; verify the exact MLI-modified wording at consultation date because clarifying statements can be issued.

Operationally the PPT is engaged where a structure (typically a Spanish sociedad limitada or holding company chain) has been inserted between the underlying owner and the UK property primarily to access treaty benefits, without commercial substance independent of the treaty benefit. For Spanish-resident landlords with their own personal UK property and a long-running Madrid (or other Spanish) life, the PPT is not engaged on the treaty allocation itself. For holding structures, PPT analysis is part of the front-end planning.

Frequently asked questions

The FAQ list above is the consolidated set of the most common Spanish-bilateral questions: NRL withholding, the 60-day NRCGT return, Article 13(4) coverage, Article 4 tie-breaker, the wealth-tax asymmetry, the s.10A trap, ATED for the Spanish SL holding case, the MLI PPT, FIG for the inbound new resident, and the LTR IHT tail. For the operational NRL1 / NRL2 / NRL3 mechanics, see our NRL gross-payment approval page. For the 60-day NRCGT mechanics in detail, see our NRCGT rates and reporting page. For the SDLT non-resident 2% surcharge that applies on UK residential purchases by Spanish residents, see our SDLT non-resident surcharge page. For the broader Crown Dependencies treaty comparison, see our UK-Crown Dependencies DTA page. For the ATED architecture relevant to the Spanish SL case, see our ATED complete guide.

Next step

If you are Spanish-resident with UK property, a Madrid-based high-net-worth client with UK property exposure, a UK landlord planning a permanent move to Spain, or a UK-Spain dual-resident, the 2013 Convention plus the UK domestic NRL, NRCGT, ATED and CT architecture plus the Spanish-side wealth tax and IHT positions need to be planned together rather than treated as separate problems. Contact us via the form below to discuss your specific cross-border position.