How American founders, consultants, property investors and retirees structure businesses in Spain — the tax treaty, residency, company choice, and the cross-border planning that prevents double tax, audit exposure and filing gaps.
Spain attracts American citizens and green card holders every year — retirees on the Costa del Sol, remote workers in Barcelona and Valencia, founders relocating with their families, property investors holding rentals. What unites them is a shared problem set: two tax systems, one of them now applying to worldwide income, with compliance filings in both countries running on different calendars and in different languages.
Generic Spanish business setup advice misses the specific American angles that determine whether a relocation saves tax or creates a two-country audit exposure. The US–Spain Double Tax Treaty (1990, updated 2022) is the single most important document. Understanding where it applies, where it doesn't, and where both countries claim taxing rights is what separates a clean structure from an expensive one.
This page walks through how we structure business setup for American citizens and green card holders — what to keep in the home country, what to move, how IRS reporting interacts with Spanish Hacienda, how the treaty allocates rights, and what the common traps look like when they surface two years later.
End-to-end business formation, tax structuring and cross-border coordination for American citizens and green card holders. Scoped at the outset with a written fee proposal covering NIE, entity formation, tax activation, US treaty filings, Modelo 720 and ongoing compliance handover.
Four structural realities define every American-Spanish setup. Ignoring any of them creates residual exposure.
The US–Spain treaty (originally 1990, substantially amended by the 2013 Protocol which came into force in 2022) governs taxing rights between the two countries. The 2022 amendments significantly reduced withholding on dividends, interest and royalties and modernised the information-exchange and arbitration framework. For US persons, the treaty interacts with US citizenship-based taxation — a US citizen is taxed on worldwide income by the IRS regardless of where they live, so treaty credits and exclusions (FTC, FEIE) are essential.
Every cross-border structure we build runs through treaty analysis before anything is filed. Article 4 (residency tiebreaker), Article 7 (business profits and permanent establishment), the dividend/interest/royalty articles, and the elimination-of-double-tax article are the load-bearing provisions. We model each one against your specific facts — income types, residency pattern, family composition, source countries.
US persons continue IRS filing for life. Form 1040, Form 2555 (FEIE — Foreign Earned Income Exclusion up to ~$126k in 2024), Form 1116 (Foreign Tax Credit), FBAR (FinCEN 114) for foreign bank accounts over $10k aggregate, Form 8938 (FATCA), Form 5471 (CFC for US-owned foreign corporations including Spanish SLs), Form 8865 (foreign partnerships) and Form 8858 (disregarded entities / QBUs). This reporting stack is the single biggest tax-compliance issue for American founders in Spain.
Establishing Spanish tax residency is straightforward (183 days plus economic/family centre). Establishing non-residency in US is usually where the work is — severing enough ties, filing the right departure forms, documenting the change. We coordinate with American accountants on both sides of the move to prevent the dual-residency trap.
American citizens and green card holders often arrive in Spain with an existing US LLC or C-Corp. The temptation is to keep running it from Spain. The problem is place of effective management — once the director is Spanish-resident, Spanish Hacienda can claim the company as Spanish tax-resident under PEM, creating dual corporate residency and a compliance overhead in both countries.
Solutions vary by case: appointing a American-resident co-director, restructuring to a Spanish SL, using a licensing arrangement between the two entities, or accepting dual residency with treaty-based planning. We run the entity-choice analysis with actual numbers before recommending a path.
For American founders the Digital Nomad Visa suits remote workers serving US clients, the Self-Employment Visa works for autónomos with a Spanish client base, and the Non-Lucrative Visa works for passive founders living off US income. Beckham Law is frequently applied alongside an employment contract with a Spanish SL. Each route has different CFC and FATCA implications.
Visa choice affects business setup choice. A Digital Nomad Visa works for remote employees and some autónomos; it doesn't authorise the full Spanish-market business activity that a Self-Employment visa covers. Beckham Law requires an employment or director relationship — a pure autónomo doesn't qualify. We sequence visa + entity + tax regime as one integrated decision, not three separate ones.
Every engagement is scoped at the outset with a written fee proposal, named point of contact and compliance handover.
Full SL incorporation with NIE, notary, Registro Mercantil, tax activation and bank account coordination. Cross-border shareholder structuring included.
Autónomo registration with Hacienda, Social Security RETA, ROI for intracommunitario billing, quarterly Modelo filings.
Written treaty analysis applied to your specific income pattern. Article-by-article allocation, tiebreaker application, withholding optimisation.
Place of effective management review, dual residency planning, transfer pricing documentation for {ADJ}–Spanish groups.
Six-year flat 24% Spanish-source employment income regime. Election window is tight — six months from Social Security registration.
Annual Spanish filing for American bank accounts, pensions, brokerage, property. Thresholds, category rules, updates.
Digital Nomad, Non-Lucrative, Self-Employment, employment-sponsored. Visa choice integrates with entity and tax regime.
Coordinated visa + NIE + residence + school + healthcare + bank + tax setup. One project manager, one written scope.
A structured six-step process for American citizens and green card holders — from pre-move planning to ongoing compliance.
Treaty modelling, residency cessation planning in US, entity-choice review, visa route selection. Before you move, not after.
NIE obtained at Spanish consulate in US or on arrival depending on route. Visa issued and residence registered at Oficina de Extranjeros.
Autónomo registration or SL incorporation. Bank account coordination. Modelo 036 tax activation. Social Security enrolment where relevant.
Formal cessation filing with IRS. Departure tax return where applicable. Severance of ties documented for future audit defence.
Where applicable, Beckham Law election filed within six months of Social Security registration. Miss the window and the regime is lost for the full six-year period.
Quarterly Modelo 303, 111, 115; annual IRPF/IS, Modelo 347, Modelo 720, annual accounts. Coordinated with home-country residual filings where needed.
Illustrative American client profiles and how we structured each engagement.
The situation. Moved to Barcelona with family, keeping Delaware C-Corp with US customers, $2M ARR SaaS.
How we'd handle it. Analysed place of effective management risk — because the founder/sole director is now Spanish-resident, the Delaware C-Corp could be claimed as Spanish tax-resident. Restructured to keep US operations in Delaware (with US-resident officer) and created Spanish SL to employ founder as CTO under Beckham Law. Delaware pays Spanish SL a services fee at arm's length.
The situation. US citizen with single-member LLC (disregarded entity for US tax) earning $400k consulting revenue.
How we'd handle it. Single-member LLC is a US disregarded entity but Spain treats it as a corporation in many cases — this can create double tax. Converted to Spanish autónomo for Spanish-side filing, kept LLC dormant with US EIN, used Form 1116 FTC to credit Spanish tax against US.
The situation. California retiree moving to Valencia with $1.4M in 401k, $600k IRA, planning to live off distributions.
How we'd handle it. Spanish tax residency analysis — distributions are US-source pension under Article 20 of treaty, taxable primarily in Spain with US credit. Rollover strategy, timing of distributions across tax years and US-side Roth conversion planning integrated with Spanish IRPF tiers. No business setup needed; but Modelo 720 foreign asset reporting triggered.
The situation. US tech worker hired by Spanish SL subsidiary of US parent, $250k base plus RSUs vesting.
How we'd handle it. Beckham application filed within six months of Social Security registration. RSUs analysed for US-source (vesting-period apportionment) — Spanish-source portion taxed at 24% flat, US-source portion outside Spanish scope under Beckham. Coordinated with US CPA for 1040 and Section 911 FEIE interaction.
The recurring ways American citizens and green card holders lose money and create compliance exposure — and how to avoid each.
Most Americans with a 50%+ owned Spanish SL don't know Form 5471 exists. Penalties are $10,000 per year per entity; they compound. The IRS actively enforces this.
The entity-classification mismatch creates double tax. This is the single most expensive mistake for self-employed Americans moving to Spain.
FBAR is not part of the 1040 filing — it's a separate FinCEN filing and it's easy to miss. Every Spanish bank account the American founder touches is reportable.
Spanish mutual funds, ETFs and some pension wrappers are PFICs (Passive Foreign Investment Companies) under US rules. PFIC taxation is punitive. Americans should hold investment portfolios with US-domiciled holdings rather than Spanish fund products.
Most US CPAs don't understand Spanish Modelo filings, Spanish inheritance tax, Modelo 720 or Beckham Law. Most Spanish gestores don't understand CFC, GILTI, Subpart F or FBAR. Coordination between both sides is essential.
If you've been abroad for years without filing, the IRS Streamlined Filing Compliance Procedure lets you catch up three years of returns and six years of FBAR without criminal penalty. This is a limited offer — don't wait.
Most American founder engagements run as follows. First, a structure call — typically 60 minutes — where we walk through your position, the income streams, the home-country ties and the Spanish options. We send a written recommendation with tax modelling before you pay anything.
Second, if you engage us, we issue a written scope and fixed fee. The scope is specific — NIE application, SL formation, Modelo 036, Beckham election, Modelo 720 setup, coordination with your American advisor, handover to an ongoing gestor. There is no open-ended hourly billing.
Third, we execute. You get a named point of contact. Every step has an owner on our side. We work in English. We send weekly status updates during active phases. If anything is blocked, you hear about it the day it happens, not a month later.
Fourth, we hand over to an ongoing compliance provider — usually a gestor or small Spanish accounting firm — with a written compliance calendar showing every filing, every deadline, every Modelo number for the next twelve months. You don't lose visibility after setup.
Fifth, we stay available. Cross-border questions surface years after setup — an unexpected American inheritance, a property sale, a business sale, a Hacienda inspection. We keep your file and can respond quickly without rebuilding context.
Three routes American citizens and green card holders most often take — with a clear view of when each works best.
Spain has thousands of people who will register an SL. What's scarce is coordinated cross-border capability — lawyers who understand how US taxes, IRS reporting and the US–Spain Double Tax Treaty (1990, updated 2022) interact with Spanish Hacienda, Modelo 720 and Beckham Law.
Speak to a specialist who has structured American-Spanish setups before. Written scope. Fixed fee. Named contact. Cross-border coordination with your home advisor.