Moving to Spain from the United States: Tax, Visas, and IRS Compliance in 2026

Americans who move to Spain remain US taxpayers. That is the first thing to understand, and it does not change with length of residency, Beckham Law status, or any provision of the Spain-US treaty. The United States taxes all its citizens and green card holders on worldwide income regardless of where they live -- a rule preserved in full by the saving clause of the 1990 Spain-US double-taxation convention, updated by the 2013 Protocol. Spain, for its part, taxes residents on worldwide income once they cross the 183-day threshold under LIRPF. The two systems run in parallel. On the US side: annual Form 1040, FBAR reporting on FinCEN Form 114 if Spanish bank accounts collectively exceed $10,000 at any point during the year, and possibly FATCA Form 8938 for larger asset holders. Three mechanisms reduce overlap: the Foreign Tax Credit (Form 1116), the Foreign Earned Income Exclusion (Form 2555, up to $132,900 for 2026), and targeted provisions in the treaty itself. On the Spanish side, new residents may qualify for the Beckham Law -- a flat 24% rate on Spanish-source income for six years under Art. 93 of Ley 35/2006 as amended by Ley 28/2022.

What changes when you move to Spain as a US citizen?

Moving to Spain does not move you off the IRS's radar. That is the central fact every American planning this relocation needs to understand before anything else.

You remain a US taxpayer -- always

The United States is one of only two countries in the world that taxes its citizens on worldwide income regardless of where they live. (Eritrea is the other.) Whether you spend one year in Spain or twenty, whether you earn everything locally or everything from abroad, the IRS retains the right to a return from you every April.

This is not a penalty or an oversight. It is the foundational structure of US tax law. Citizenship -- not residence -- is the trigger. Green card holders are treated the same as citizens for this purpose. Only renouncing US citizenship removes this obligation.

Spain's claim on your income from day 184

Spain operates a residence-based tax system. Spend more than 183 days in Spain during a calendar year and you become a Spanish tax resident under LIRPF. Once that threshold is crossed, Spain taxes your worldwide income at progressive IRPF rates that run from 19% to 47%. Most Americans planning a move to Spain will cross the 183-day threshold in their first full year. That creates immediate Spanish filing obligations and, if no planning has been done, a potentially high effective tax rate on income from all sources globally.

The saving clause: why the treaty does not let you opt out of IRS filing

The saving clause of the Spain-US tax treaty is the single most important legal concept for American expats in Spain. It means this: the United States retains the right to tax its citizens on worldwide income as if the treaty had not come into effect. Article 1(6) of the 1990 convention, as amended by the 2013 Protocol (entered into force 27 November 2019), states this explicitly. Spain and the United States have an agreement to avoid double taxation -- but that agreement does not remove the American obligation to file, report, and pay US tax.

Source: Convention Between the US and Spain for Avoidance of Double Taxation, Art. 1 as amended by Protocol of 14 January 2013 — Saving clause: US retains right to tax its citizens on worldwide income as if the treaty did not exist

Spanish tax residency: the 183-day rule and what it triggers

The 183-day test under LIRPF Art. 9

Spain's primary tax residency test is straightforward: if you spend more than 183 days in Spain during a calendar year, you are a Spanish tax resident for that year (Ley 35/2006, Art. 9.1.a). Days are counted on Spanish territory. Brief absences do not break the count unless you can demonstrate a regular place of residence in another country. The 183-day test is mechanical and, for most people relocating to Spain, the threshold is crossed before the end of the first calendar year. What triggers on day 184: an obligation to file Modelo 100 declaring worldwide income, pay IRPF at progressive rates from 19% to 47%, and comply with various asset-reporting obligations.

The centre-of-vital-interests test

Spain has a second residency test that catches people who technically spend fewer than 183 days in Spain but whose life is centered there. Under Art. 9.1.b of LIRPF, you are deemed a Spanish resident if the core of your economic interests or activities is located in Spain. Art. 9.2 creates a rebuttable presumption of Spanish residency if your spouse and dependent minor children reside habitually in Spain.

Declaring worldwide income in Spain: Modelo 100

Once you are a Spanish tax resident, you file Modelo 100 -- the annual IRPF declaration. For the 2025 tax year, the Renta 2025 campaign opened on 8 April 2026 and closes on 30 June 2026 for online filing. Modelo 100 requires declaring worldwide income: Spanish employment income, foreign rental income, US brokerage gains, IRA distributions, foreign dividends -- everything. Spain then taxes the total at progressive IRPF rates, with relief mechanisms reducing potential double taxation.

Source: Ley 35/2006, Art. 9 (LIRPF) — Spanish tax residency: 183-day test and centre-of-vital-interests test

Modelo 720 -- reporting foreign assets above EUR 50,000

Standard Spanish tax residents must file Modelo 720 if the value of assets in any of three categories exceeds EUR 50,000: foreign bank accounts, foreign securities and financial instruments, and foreign real estate. The threshold applies per category. Under the Beckham Law, the main beneficiary is generally not required to file Modelo 720. Beckham coverage does not automatically extend to family members, however. When the six-year window closes, Modelo 720 obligations switch on. The reporting obligation is fully in force following ECJ Case C-788/19 (January 2022) and Spain's Ley 5/2022, which reformed the penalty regime while leaving the filing requirement intact.

For a detailed breakdown of Modelo 720, its categories, thresholds, and revised penalty structure, see our guide on what Modelo 720 requires and its revised penalties.

The Beckham Law: Spain's flat-rate regime for qualifying US expats

What the Beckham Law offers

The Beckham Law -- officially the Regimen Especial para Trabajadores Desplazados a Territorio Espanol -- allows qualifying individuals who move to Spain for work to be taxed on a non-resident basis for six consecutive years. Spanish-source employment income up to EUR 600,000 is taxed at a flat 24% rate instead of Spain's progressive IRPF rates that reach 47%. Income above EUR 600,000 is taxed at 47%. Most foreign-source income -- dividends, capital gains, rental income, and interest from outside Spain -- is generally exempt from Spanish taxation under the regime. For US expats earning above EUR 60,000 annually, the Beckham Law typically generates meaningful tax savings versus standard IRPF.

Who qualifies -- the five-year prior non-residency requirement

To qualify for the Beckham Law, an individual must meet conditions under Art. 93 of Ley 35/2006 as amended by Ley 28/2022: they must not have been a Spanish tax resident in the five fiscal years immediately preceding the year of relocation; they must relocate to Spain for an employment relationship -- employment contract, company transfer, DNV-based remote work, or qualifying entrepreneur/professional activity; and they must obtain a NIE.

How to apply: Modelo 149 and the 6-month deadline

The application is made on Modelo 149, filed with the Agencia Tributaria. The critical deadline: Modelo 149 must be submitted within six months of the applicant's first registration with Spanish Social Security. Missing this window permanently bars access to the regime. Annual returns under the regime are filed on Modelo 151.

For a complete step-by-step application guide, see how to file Modelo 149 within the 6-month window. For the full eligibility framework, see the Beckham Law eligibility and application guide at https://www.apextax.co/spain/knowledge-hub/beckham-law-spain.

Source: Ley 35/2006, Art. 93 (LIRPF) as amended by Ley 28/2022 (Startup Law) — Beckham Law: flat 24% on Spanish-source income up to EUR 600,000, six-year duration, Modelo 149 application within 6 months of Social Security registration

The Beckham Law and FEIE: why US expats need specialist coordination

Under the Beckham Law, Spain treats the beneficiary as a non-resident for most income tax purposes. This creates a complication for Americans wanting to also claim the Foreign Earned Income Exclusion. The FEIE's Bona Fide Residence Test requires the claimant to be a bona fide resident of a foreign country. Whether being treated as a Spanish tax non-resident under Beckham defeats this test is an area of genuine legal uncertainty -- the IRS has not issued authoritative guidance. In practice, many US-qualified advisors working with Beckham filers use the Foreign Tax Credit rather than the FEIE, which avoids the question entirely. Others who want to attempt the FEIE rely on the Physical Presence Test (330 full days in a foreign country during any 12-month period) -- a day-count test not affected by how Spain classifies your residency.

What the Beckham Law does NOT do

The Beckham Law is a Spanish tax mechanism. It does not reduce, suspend, or modify US filing obligations. American citizens on the Beckham Law must still file Form 1040 annually, file FBAR if account balances trigger the threshold, file FATCA Form 8938 if asset thresholds are met, and comply with state tax obligations. The two regimes operate in parallel, not as alternatives.

IRS obligations that follow you to Spain

Annual Form 1040 -- the non-negotiable

Every US citizen and green card holder, wherever they live, must file a Form 1040 each year. For Americans abroad: the filing deadline is April 15 with an automatic two-month extension to June 15, further extendable to October 15 with Form 4868. Tax owed accrues interest from April 15 regardless of extensions -- the extension is for filing, not for payment.

FBAR (FinCEN Form 114) -- the most misunderstood form

If the combined maximum balance across all your foreign financial accounts -- Spanish bank accounts, brokerage accounts, savings accounts -- exceeds $10,000 at any single point during the calendar year, you must file an FBAR. The form is FinCEN Form 114, filed electronically with the Financial Crimes Enforcement Network through the BSA E-Filing System (bsaefiling.fincen.treas.gov). It is entirely separate from your Form 1040. Deadline: April 15, with automatic extension to October 15 requiring no separate request.

FATCA Form 8938 -- for larger asset holders

The Foreign Account Tax Compliance Act (FATCA), enacted in 2010 under IRC Section 6038D, requires Americans living abroad with specified foreign financial assets worth more than $200,000 at year-end or $300,000 at any point during the year (double these thresholds for joint filers) to file Form 8938 with their annual tax return. Unlike the FBAR, Form 8938 is filed with the IRS as part of your Form 1040 package.

FBAR vs Form 8938 -- different forms, often both required

The FBAR and FATCA Form 8938 overlap substantially but are not duplicates. They have different thresholds, different filing destinations, different asset scopes, and different legal bases. Many Americans in Spain need to file both.

Penalties for non-compliance

The FBAR penalty structure is severe. For non-willful violations, the civil penalty reaches $16,536 per account per year (2026 inflation-adjusted). For willful violations, the penalty is the greater of $165,353 or 50% of the account balance per violation. FATCA Form 8938 carries its own penalty structure: $10,000 for failure to file, rising to $50,000 for continued failure after IRS notice. These penalties exist independently of any tax owed.

Source: IRC Section 6038D (HIRE Act 2010) / Form 8938 — FATCA reporting: $200,000 threshold for single filers abroad ($300,000 at any time); filed with Form 1040

Specific scenarios: how the dual-tax reality plays out

Remote employee working for a US company from Spain

For income tax, the picture is relatively clear: the employee files Form 1040 (worldwide income) and Modelo 100 or Modelo 151 (if on Beckham) in Spain. Social security is where remote employees run into a specific problem. The US-Spain Totalization Agreement covers traditional company postings -- a US employer sending an employee to Spain for a defined period can obtain a Certificate of Coverage, allowing the employee to remain in US Social Security. This is not available for employees who voluntarily relocate to Spain under a Digital Nomad Visa and continue working for a US employer remotely. For DNV-based remote employees, the employer must either: register formally with Spain's Social Security system (adding approximately 29-30% employer contribution); restructure so the employee converts to autonomo status; or engage an Employer of Record in Spain.

Freelancer / self-employed (autonomo) with US clients

Self-employed Americans who move to Spain and register as autonomo face a dual-contribution risk without planning. Spain requires autonomo contributions based on estimated net income. The US requires self-employment tax (FICA, 15.3% of net self-employment income) on worldwide earned income.

The Certificate of Coverage exempts the autonomo from US FICA. Important: the FEIE reduces US federal income tax but does NOT reduce US self-employment (FICA) tax. Budget for FICA even if you use the FEIE, unless you obtain a Certificate of Coverage under the totalization agreement.

Founder relocating a US business or setting up a Spanish SL

Establishing a Spanish Sociedad Limitada while maintaining US corporate structures creates concurrent obligations: Spanish corporate income tax (IS) on the SL's profits at 25% (23% for qualifying SMEs), Spanish IRPF on salary or dividend distributions, and IRS reporting obligations under Form 5471 for US shareholders in foreign corporations.

American founders establishing a Spanish SL face three concurrent obligations: Spanish corporate tax, Spanish IRPF on distributions, and continued IRS reporting under Form 5471. None cancels another.

— ApexTax -- based on Spain-US dual-tax framework

Investor / HNWI -- foreign capital gains, US brokerage, and Modelo 720

US investors holding significant foreign financial assets face Spanish wealth tax considerations and Modelo 720 obligations for foreign assets above EUR 50,000 per category. Under standard IRPF, gains from US-held shares or property are generally taxable in Spain. The treaty caps US withholding on some income categories and provides Spain's residents with a credit for any residual US tax paid.

Retiree -- US Social Security, 401(k)/IRA, and the totalization agreement

For American retirees, the Spain-US treaty has specific rules. Private pensions from prior US employment are generally taxed only in Spain under Art. 20 of the treaty once you are a Spanish resident. US government (public) pensions are generally taxed only in the US. IRA and 401(k) distributions are typically treated as employment income in Spain under the general base, taxed at progressive IRPF rates. Pre-move timing and structuring of retirement account distributions can produce substantial savings.

Reducing double taxation: FEIE, FTC, and the treaty

Foreign Tax Credit (Form 1116)

The Foreign Tax Credit is a dollar-for-dollar credit against US federal income tax for income taxes paid to a foreign government. For Americans in Spain on standard IRPF, where effective rates often run 30-47%, the FTC typically eliminates the US federal income tax liability entirely. Any unused FTC can be carried back one year or carried forward ten years. The FTC operates by income basket (general, passive, GILTI, treaty) -- passive income and general income are calculated separately.

Foreign Earned Income Exclusion (Form 2555)

The FEIE allows qualifying Americans to exclude up to $132,900 of foreign earned income from US federal taxation for 2026 (up from $130,000 in 2025), indexed annually under IRC Section 911. To qualify: your tax home must be in a foreign country, and you must meet either the Bona Fide Residence Test or the Physical Presence Test (330 full days in foreign countries during any 12-month period). The FEIE covers only earned income -- wages and self-employment income -- and does not reduce self-employment (FICA) tax.

Source: IRC Section 911 / IRS Rev. Proc. 2025-32 — Foreign Earned Income Exclusion: $130,000 for tax year 2025; $132,900 for tax year 2026, indexed annually for inflation

FEIE vs FTC for Spain -- which tool works better

Under standard IRPF at 36-47% effective rates, Spanish taxes typically exceed US federal liability. In this case, the FTC generally eliminates US tax entirely. Under the Beckham Law at a flat 24%, if your US marginal federal rate is higher than 24%, the FTC from Beckham taxes may not fully cover your US liability. For earners in the $80,000-$150,000 range on Beckham, the FEIE (if available) may produce better results than FTC. Above $132,900 in income, the FEIE is capped and FTC becomes necessary for the excess.

The stacking rule

When you use the FEIE, the excluded income does not simply disappear from your tax calculation -- it still determines the bracket at which your remaining income is taxed. If you earn $180,000 and exclude $132,900, the remaining $47,100 is taxed at the bracket where $132,900 of income would have placed you. This can push moderate amounts of non-excluded income into higher brackets than expected.

Spain-US treaty benefits beyond income tax

The Spain-US treaty provides specific relief on certain income types. Post-2013 Protocol: most cross-border interest is taxed only in the recipient's country. Dividends: generally 15% US withholding (5% for qualifying corporate shareholders). The treaty also provides tie-breaker rules for dual-residency situations and a Mutual Agreement Procedure for unresolved double-taxation disputes.

Five mistakes US expats moving to Spain commonly make

Not filing FBARs because you reported the accounts on your Spanish return

The FBAR is a US Treasury disclosure requirement that exists entirely independently of Spanish tax filings. Declaring your Spanish accounts on Modelo 720 or on your Spanish IRPF return has no bearing on your FBAR obligation. The IRS does not know what you declared to AEAT. The FBAR must be filed separately, on its own form, with FinCEN.

Assuming the Spain-US treaty cancels IRS obligations

The treaty was designed to prevent double taxation on the same income -- not to eliminate the US filing obligation. The saving clause is explicit: the US retains full rights to tax its citizens. The treaty reduces what you owe; it does not reduce whether you must file.

Missing the Beckham Law application deadline

Modelo 149 must be filed within six months of your first Social Security registration in Spain. This is not extendable and is frequently missed by people who arrive, start working, and only discover the Beckham Law months into their relocation. At EUR 100,000 of income, the cost of missing this deadline can exceed EUR 70,000-90,000 in foregone tax savings over the full six-year window.

Choosing the wrong tool -- FEIE vs FTC

The optimal strategy between FEIE and FTC depends on your income level, your Spanish tax rate, Beckham status, employment or self-employment, and income composition. Defaulting to one without modelling the specific interaction is a common and expensive error.

Letting Modelo 720 lapse when the Beckham window closes

During the Beckham period, the main beneficiary is generally not required to file Modelo 720. When the regime ends, standard IRPF residency switches on -- and with it, Modelo 720 obligations. If your foreign portfolio has been accumulating unreported during the regime, year seven requires both catching up on declarations and potentially dealing with wealth tax implications. Advanced exit planning, starting at least a year before the Beckham window closes, can significantly reduce this exposure.

After year six: what changes when the Beckham Law ends

The transition to standard IRPF

When the six-year Beckham window closes, worldwide income switches fully into Spanish IRPF at progressive rates from 19% to 47%. Foreign income that was exempt becomes taxable. Modelo 720 obligations switch on simultaneously for all foreign assets above EUR 50,000 per category.

Planning the transition

The year before the Beckham window closes is a critical planning window. Potential strategies include: timing the disposal of foreign assets while the foreign-income exemption still applies; reviewing IRA or 401(k) structures before worldwide income taxation applies; and assessing whether genuine change of residency would reduce future Spanish tax exposure. None of these decisions should be taken without coordinating both US and Spanish tax advice.

Long-term residency and permanent tax position

Americans who remain in Spain long-term, past the Beckham window, face a full-resident Spanish tax position on top of continued IRS obligations. At that point, the FTC is typically the main tool for avoiding double taxation. The treaty's tie-breaker rules, Mutual Agreement Procedures, and specific provisions on pension income, capital gains, and dividends all become relevant at a level that generally warrants annual professional review.

How ApexTax helps Americans moving to Spain

Moving to Spain as a US citizen is not a single compliance exercise -- it is a sustained dual-jurisdiction management task. The two systems do not cancel each other out, and planning decisions made in the first weeks have multi-year financial consequences.

ApexTax works as a Tax Strategy Consultancy and Single Point of Contact for Americans at every stage of this move. Before the relocation, we map the full dual-tax picture: Beckham eligibility and the six-month deadline, FEIE versus FTC modelling, Modelo 720 timeline, Social Security structure for both employees and self-employed, and the treaty provisions most relevant to your income profile. After the move, we coordinate the two-specialist team -- a Spain-licensed tax advisor and a US-enrolled agent or CPA -- with ApexTax as the single point of contact throughout.

ApexTax does not file Modelo 149, Form 1040, FBAR, or any tax return on your behalf. These are reserved acts executed by qualified independent professionals -- licensed tax advisors, gestores, and US-enrolled agents -- coordinated by ApexTax under our co-engagement model.