Four Spain-specific items shape the US-side tax picture: the US-Spain income tax treaty in force since 1990, the IRNR imputed-income rule on second-home property even when it sits empty, wealth tax exposure that varies sharply by Autonomous Community (zero in Madrid, real money in Cataluña), and Spanish 19% capital gains on non-resident sales plus US capital gains. Purchase itself isn't US-taxable — basis is purchase price plus closing costs in USD at the spot rate.
What's not taxable: the purchase itself
A US buyer of Spanish property does not owe US tax on the purchase. The acquisition is a non-taxable event for US purposes — the buyer's cost basis is established at the purchase price plus closing costs (in US dollars, converted at the spot rate on the transaction date).[IRS, basis rules for foreign real estate (Publication 551, Basis of Assets), 2026-04]
Spain's ITP (or VAT+AJD for new construction), notary fees, and other one-time acquisition costs are not US taxes and do not generate a foreign tax credit at purchase. They are treated as costs of acquisition added to basis.
For a €400,000 EUR purchase in a 10% ITP region with €45,000 EUR in total closing costs, the US dollar basis is the €445,000 EUR all-in cost converted at the transaction-date USD/EUR rate. At a 1.10 USD/EUR rate, the US basis is USD €490,000 EUR.
Annual reporting: FBAR and Form 8938
US persons who maintain Spanish bank accounts to handle property carrying costs may have annual reporting obligations.
FBAR (FinCEN Form 114) is required of any US person with financial interest in or signature authority over one or more foreign financial accounts with aggregate value exceeding €10,000 EUR at any time during the year.[US Treasury FinCEN, Report of Foreign Bank and Financial Accounts (FBAR), 2026-04]
Form 8938 is required of US persons with specified foreign financial assets above thresholds varying by filing status and residency.[IRS, Form 8938 reporting thresholds and filing requirements, 2026-04]
The US-Spain comprehensive tax treaty
The US and Spain have a comprehensive income tax treaty in force since 1990, with subsequent protocols.[US Treasury, US-Spain Income Tax Treaty (1990 with subsequent protocols), 2026-04]
Practical implications for US buyers:
Treaty-based relief on double-taxation: the treaty provides specific provisions for the treatment of rental income, capital gains, dividends, interest, and other income types between the two countries.
Withholding rate reductions: the treaty includes reduced withholding rates on certain Spanish-source income flows for US residents.
Treaty-tiebreaker for tax residency: useful for US persons who relocate to Spain under Non-Lucrative Visa and could be tax-resident in both jurisdictions absent the treaty.
Capital gains on real estate: the treaty allocates taxing rights — generally the country where the property is situated retains the primary right to tax capital gains on real estate. The US retains its taxing right under the standard residency framework, with the foreign tax credit reconciling.
For most US-buyer scenarios, the comprehensive treaty provides cleaner mechanics than treaty-absent jurisdictions (Belize, Panama).
IRNR imputed income — the Spain-specific complication for second-home buyers
Spain's IRNR (Impuesto sobre la Renta de no Residentes) imposes imputed income tax on second-home property owned by non-residents even when not rented out — typically 1.1-2% of the cadastral value, taxed at 24% (the non-EU non-resident rate) for US persons.[Agencia Tributaria, IRNR imputed income framework for non-resident property owners, 2026-04]
For US buyers using the property personally without rental:
- Spain side: file IRNR Modelo 210 annually reporting the imputed income, pay 24% tax on the imputed amount.
- US side: the imputed income is not US-taxable (no actual income realized for US purposes). The Spanish IRNR paid on imputed income generally cannot be claimed as a foreign tax credit on the US return because there is no corresponding US income to offset.
The IRNR imputed income is a real Spain-side carrying cost for non-resident second-home owners. For a property with €300,000 EUR cadastral value, the annual imputed income is €3,300 EUR-€6,000 EUR, with IRNR tax of €800 EUR-€1,450 EUR. The cost is modest individually but compounds annually.
Wealth tax (Impuesto sobre el Patrimonio) considerations
Spain's wealth tax applies to non-residents on Spanish-situs assets above the exempt threshold. Bonification varies sharply by Autonomous Community:[Agencia Tributaria, Impuesto sobre el Patrimonio framework for non-residents, 2026-04]
- Madrid: 100% bonification — effectively zero wealth tax (politically contested at the federal level via the proposed solidarity surtax)
- Andalucía: bonification status has shifted across recent administrations; verify current
- Cataluña: no bonification — full progressive rates from 0.21% to 2.75%+ above threshold
For high-net-worth US buyers with Spanish-situs property above €700,000 EUR, wealth-tax planning requires Spanish tax counsel and a community-specific assessment.
Rental income: reportable in both countries
US persons who rent out their Spanish property owe Spanish IRNR (24% for non-EU non-residents on gross rental, with limited deductions; 19% for EU residents with progressive structure) and US federal income tax on the same income reported on Schedule E of Form 1040.[Agencia Tributaria, IRNR rental income framework, 2026-04]
The double exposure is reconciled through the Foreign Tax Credit (Form 1116) plus US-Spain treaty provisions.[IRS, Foreign Tax Credit (Publication 514), 2026-04]
The Spanish 24% non-resident rate is comparable to or higher than US marginal rates for many filers — the foreign tax credit typically covers most of the US tax owed.
Depreciation: US persons use the 30-year recovery period for foreign residential rental real estate.[IRS, alternative depreciation system for foreign-use property under Section 168(g), 2026-04]
Sale: capital gains in both countries
When a US person sells Spanish property, the gain is taxable in Spain (19% IRNR for non-residents, with 3% withholding mechanism at sale) and in the US.
The Spanish 19% rate is applied to the gain. The 3% withholding mechanism: the buyer of the property withholds 3% of the gross sale price and remits to AT as advance against the seller's eventual capital gains liability.[Agencia Tributaria, capital gains tax framework on real estate sales for non-residents, 2026-04]
The US capital gain is calculated on the dollar basis. The EUR/USD movement between acquisition and disposition can produce meaningful FX adjustments.
The foreign tax credit applies to the Spanish capital gains tax against the US capital gains tax. The Spanish 19% rate is similar to the US long-term capital gains rate (15-20% federal plus 3.8% NIIT), producing relatively neutral outcomes.
Section 121 exclusion
US homeowners are familiar with the Section 121 exclusion: up to €250,000 EUR (single) or €500,000 EUR (married) of capital gain on the sale of a primary residence excluded from US income tax.[IRS, Section 121 exclusion of gain from sale of principal residence (Publication 523), 2026-04]
For US persons who have moved to Spain under Non-Lucrative Visa, established Spanish residence as their primary residence, and lived there for at least two years, Section 121 can shelter substantial capital gain on sale.
Estate and gift tax
US persons gifting Spanish property during life or transferring it on death face the standard US estate and gift tax framework on worldwide estate.[IRS, US estate tax on worldwide assets of US persons (Publication 559), 2026-04]
Spain imposes inheritance and gift tax (Impuesto sobre Sucesiones y Donaciones) with substantial regional variation — some Autonomous Communities (Madrid, Andalucía) have effectively bonified the tax for direct heirs; others apply meaningful rates.[Agencia Tributaria, ISyD framework with regional variation, 2026-04]
The EU Succession Regulation allows non-EU testators to elect their national-law succession for Spanish-situs property. US owners should execute a Spanish-recognized will electing US-state-law succession and engage a Spanish attorney with cross-border estate practice.
What a typical filing year looks like
For a US person who owns a Spanish apartment (held in personal name) and uses it as a second home (no rental):
- Form 1040 (no Schedule E if no rental)
- FinCEN Form 114 (FBAR) for the Spanish bank account if it crossed threshold
- Form 8938 if specified foreign financial assets crossed threshold
- Spain side: Modelo 210 for IRNR imputed income; Modelo 714 for wealth tax if applicable
For US persons who rent the Spanish property, add Schedule E, Form 1116 for the FTC, and potentially Form 4562 for depreciation.
Cross-border-competent preparation for Spain typically runs €2,000 EUR-€5,000 EUR per year given the multi-form Spanish-side filings and treaty considerations.[Greenback Tax Services, fee schedules for US expat tax preparation, 2026-04]
Where buyers commonly stumble
Three recurring failure modes:
Ignoring IRNR imputed income on personal-use second homes. The annual IRNR filing on imputed income is mandatory even with no rental.
Underestimating wealth tax exposure in higher-net-worth scenarios. Wealth tax applies to non-residents on Spanish-situs assets above threshold.
Missing Modelo 720 for foreign-asset reporting (Spanish-resident US persons). Spanish tax residents — including US citizens who become Spanish residents — must file Modelo 720 reporting non-Spanish assets above thresholds. Modelo 720 has had outsized penalty exposure historically (the European Court of Justice struck down the original disproportionate penalty regime; Spain has since recalibrated). The form itself remains in force.[Agencia Tributaria, Modelo 720 foreign-asset reporting framework, 2026-04]
For a quarterly read on Spain regional tax shifts and the Madrid bonification status, our newsletter covers cross-border buyer-relevant changes.
For broader country context, see /spain/. For Spain-side closing mechanics, see /spain/nie-and-buying-process/. For the parallel Canadian-side framework, see /spain/taxes-canadian-buyers/.
Disclaimer
This article is for informational purposes only and does not constitute tax advice. Tax laws change frequently and individual circumstances vary. Consult a qualified cross-border tax advisor before making decisions based on this information. CrossingHQ does not provide tax preparation, advice, or representation services.
Current as of 2026-08-21. We review tax content quarterly and update on rule changes. To report an error, contact us.