US founders and companies in Spain 2026 — SL formation, Canary Islands ZEC, and cross-border structure

US founders and entrepreneurs moving to Spain face a business formation decision that has simultaneous Spanish and US tax implications. Forming a Spanish Sociedad Limitada (SL) — the equivalent of a US LLC — triggers IRS Form 5471 reporting obligations if the American owns 10% or more. Using a US LLC to operate in Spain may create an unintended Spanish permanent establishment, triggering IRNR corporate-equivalent taxation and AEAT registration obligations. The Canary Islands ZEC regime offers a 4% corporate tax rate for qualifying companies controlled by non-Spanish shareholders — potentially eligible for US-controlled Spanish entities. The Entrepreneur Visa, the right vehicle for US founders creating innovative businesses in Spain, requires ENISA certification and careful structuring to maintain Beckham Law compatibility. Most Spanish company formation advisors don't know what Form 5471 is. Most US CPAs have never structured a ZEC vehicle.

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Why BMC

Specialised advice and personal service

BMC advises US founders and US companies on the full Spain-side business structure: SL formation and articles of incorporation, ZEC Canarias eligibility assessment, branch vs subsidiary analysis, Spanish tax registration, fiscal representation, Entrepreneur Visa + ENISA certification support, and Beckham Law compatibility structuring. We coordinate with your US CPA on the US reporting obligations triggered by Spanish business interests: Form 5471 (US person owning ≥10% of a Spanish SL), Form 8865 (US person partnering in a Spanish partnership equivalent), and transfer pricing documentation requirements.

  • A Spanish SL (Sociedad Limitada) is the standard entity for US founders in Spain, with a minimum capital of €1 since October 2022 (€3,000 recommended) and standard corporate tax of 25%, but ZEC Canarias offers 4% for qualifying operations.

  • Any US person owning ≥10% of a foreign corporation (including a Spanish SL) triggers IRS Form 5471 reporting — coordinate with your US CPA before forming any Spanish entity.

  • Canary Islands ZEC (Zona Especial Canaria)

    4% corporate tax on eligible profits for qualifying companies — open to US-controlled Spanish entities meeting activity and employment requirements.

  • Operating in Spain via a US LLC without formal Spanish entity registration risks creating an unregistered permanent establishment — full Spanish corporate tax exposure without the ZEC benefit.

How we work

From first contact to case completion

  1. Structure analysis: SL vs branch vs permanent establishment

    We analyse your US business structure and Spain plans to recommend the optimal Spanish vehicle. Key considerations: Are you a US individual founder or a US corporate expanding to Spain? Is the Spanish operation an independent business or a Spain extension of the US entity? What are the transfer pricing implications? Does ZEC Canarias work for your activity type? Can the Spanish entity be structured for Beckham Law compatibility? We present the Spain-side analysis for validation by your US CPA on the Form 5471/8865/transfer-pricing side.

  2. SL formation

    We incorporate the Sociedad Limitada: draft of estatutos sociales (articles of incorporation), registration in the Registro Mercantil Central (company name reservation), notarial execution of the deed of incorporation (escritura de constitución), Agencia Tributaria registration (NIF), Social Security employer registration (if hiring employees), and opening of corporate bank account. Timeline: 2–4 weeks for standard SL without special requirements.

  3. ZEC Canarias eligibility and registration

    Where ZEC eligibility is confirmed, we manage the full registration process: ZEC Canarias formal application, activity justification, employment commitment documentation (≥5 workers for most activity types), and approved ZEC legal domicile in the Canary Islands. We coordinate with your US CPA on how ZEC's 4% rate affects the FTC calculation and GILTI (Global Intangible Low-Taxed Income) analysis under current US tax rules (confirm the current GILTI rules applicable to US persons owning ZEC entities with your US CPA).

  4. Entrepreneur Visa + ENISA certification

    For founders seeking residence via the Entrepreneur Visa, we prepare the ENISA business plan application (innovative activity certification), manage the ENISA review (typically 30–60 days), and prepare the complete visa application for the Spanish consulate once ENISA certificate is received. Post-arrival: we manage the DGIPYME start-up activity authorization and the Beckham Law Modelo 149 application where eligible.

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The problem

US founders and entrepreneurs moving to Spain face a business formation decision that has simultaneous Spanish and US tax implications. Forming a Spanish Sociedad Limitada (SL) — the equivalent of a US LLC — triggers IRS Form 5471 reporting obligations if the American owns 10% or more. Using a US LLC to operate in Spain may create an unintended Spanish permanent establishment, triggering IRNR corporate-equivalent taxation and AEAT registration obligations. The Canary Islands ZEC regime offers a 4% corporate tax rate for qualifying companies controlled by non-Spanish shareholders — potentially eligible for US-controlled Spanish entities. The Entrepreneur Visa, the right vehicle for US founders creating innovative businesses in Spain, requires ENISA certification and careful structuring to maintain Beckham Law compatibility. Most Spanish company formation advisors don't know what Form 5471 is. Most US CPAs have never structured a ZEC vehicle.

Our solution

BMC advises US founders and US companies on the full Spain-side business structure: SL formation and articles of incorporation, ZEC Canarias eligibility assessment, branch vs subsidiary analysis, Spanish tax registration, fiscal representation, Entrepreneur Visa + ENISA certification support, and Beckham Law compatibility structuring. We coordinate with your US CPA on the US reporting obligations triggered by Spanish business interests: Form 5471 (US person owning ≥10% of a Spanish SL), Form 8865 (US person partnering in a Spanish partnership equivalent), and transfer pricing documentation requirements.

Process

How we do it

1

Structure analysis: SL vs branch vs permanent establishment

We analyse your US business structure and Spain plans to recommend the optimal Spanish vehicle. Key considerations: Are you a US individual founder or a US corporate expanding to Spain? Is the Spanish operation an independent business or a Spain extension of the US entity? What are the transfer pricing implications? Does ZEC Canarias work for your activity type? Can the Spanish entity be structured for Beckham Law compatibility? We present the Spain-side analysis for validation by your US CPA on the Form 5471/8865/transfer-pricing side.

2

SL formation

We incorporate the Sociedad Limitada: draft of estatutos sociales (articles of incorporation), registration in the Registro Mercantil Central (company name reservation), notarial execution of the deed of incorporation (escritura de constitución), Agencia Tributaria registration (NIF), Social Security employer registration (if hiring employees), and opening of corporate bank account. Timeline: 2–4 weeks for standard SL without special requirements.

3

ZEC Canarias eligibility and registration

Where ZEC eligibility is confirmed, we manage the full registration process: ZEC Canarias formal application, activity justification, employment commitment documentation (≥5 workers for most activity types), and approved ZEC legal domicile in the Canary Islands. We coordinate with your US CPA on how ZEC's 4% rate affects the FTC calculation and GILTI (Global Intangible Low-Taxed Income) analysis under current US tax rules (confirm the current GILTI rules applicable to US persons owning ZEC entities with your US CPA).

4

Entrepreneur Visa + ENISA certification

For founders seeking residence via the Entrepreneur Visa, we prepare the ENISA business plan application (innovative activity certification), manage the ENISA review (typically 30–60 days), and prepare the complete visa application for the Spanish consulate once ENISA certificate is received. Post-arrival: we manage the DGIPYME start-up activity authorization and the Beckham Law Modelo 149 application where eligible.

5

Ongoing Spanish corporate compliance

Annual Spanish corporate obligations: Impuesto sobre Sociedades (IS, corporate income tax) return, IVA (VAT) quarterly filings, annual accounts filing at Registro Mercantil, related-party transaction documentation (Modelo 232 for operations with US parent or shareholders). We prepare the annual tax package in a format compatible with US CPA needs for Form 5471 Schedule calculations.

25%
Standard Spanish corporate income tax rate
4%
ZEC Canarias reduced corporate tax rate for qualifying entities
€1
Minimum share capital for a Spanish Sociedad Limitada since October 2022
Form 5471
IRS form triggered by US person owning ≥10% of Spanish SL

I was planning to operate my US SaaS company from Madrid through the US entity and just 'see how it went.' BMC immediately flagged the permanent establishment risk — if I was signing contracts and managing operations from Spain, the Spanish AEAT would likely treat the US LLC as having a PE in Spain, triggering 25% Spanish corporate tax retrospectively. We formed a Spanish SL instead, structured it correctly for my US CPA's Form 5471, and I applied for the Entrepreneur Visa. Now I'm on Beckham Law, paying 24% on my salary, and the SL is structured cleanly on both sides.

Ryan Kowalski Founder & CEO, SaaS startup, Madrid

The US founder in Spain: the opportunity

Spain has emerged as one of Europe’s most attractive destinations for US founders and US companies expanding internationally, driven by three structural factors:

  1. Talent access — Spain offers a highly educated, English-capable technology and professional workforce at salary levels 30–50% below comparable US metropolitan benchmarks. Barcelona and Madrid are consistently ranked among Europe’s top tech hubs.

  2. ZEC Canarias — The Canary Islands special economic zone offers a 4% corporate income tax rate on eligible profits — the lowest available EU rate for qualifying commercial and tech activities. For US-controlled Spanish entities meeting the employment and activity requirements, ZEC is a structuring opportunity with no EU state-aid concern (it is specifically authorised by the European Commission).

  3. Founder residency incentives — The combination of the Entrepreneur Visa + Beckham Law provides US founders with a clear path to Spanish residency and a significant personal tax reduction (24% flat vs progressive IRPF with a 45% to 53.85% top rate by region) for up to 6 years.

The two-layer advisory model: BMC + US CPA

Business formation in Spain by a US person creates obligations on two sides of the Atlantic simultaneously:

ObligationResponsibleDetail
SL incorporation, Articles, NotaryBMCComplete Spanish corporate setup
Ongoing Spanish corporate tax (IS)BMCAnnual 25% / ZEC 4% returns
AEAT VAT (IVA) complianceBMCQuarterly Modelo 303, annual 390
Annual accounts (Registro Mercantil)BMCDepositing cuentas anuales
IRS Form 5471US CPAAnnual information return for ≥10% ownership
GILTI analysisUS CPACFC-level income calculation
Transfer pricing (IRC §482)US CPA (+ BMC Spanish docs)Coordinated arm’s-length documentation
Form 8865 (if partnership structure)US CPAUS person in foreign partnership

Spanish business entity: the Sociedad Limitada

The standard business vehicle for US founders in Spain is the Sociedad Limitada (SL), Spain’s private limited company:

  • Minimum capital: €1 since 19 October 2022 (art. 4.1 of the Ley de Sociedades de Capital, as amended by Law 18/2022, “Crea y Crece”), in cash or in kind; while capital is below €3,000, at least 20% of profits go to the legal reserve and shareholders answer jointly for the shortfall up to €3,000 in a liquidation, so €3,000 or more is usually advised
  • Shareholders: One to unlimited (Sociedad Limitada Unipersonal for sole shareholder)
  • Governance: Administrador único (sole director) or Consejo de Administración (board); administrador can be the founder
  • Liability: Limited to capital contribution; no personal liability of shareholders for SL debts
  • Corporate tax: 25% standard rate; 15% for newly formed companies in first two profitable years; 4% ZEC if eligible
  • VAT (IVA): Standard rate 21%; reduced 10%; super-reduced 4% for qualifying goods/services
  • Formation time: 2–4 weeks via BMC (name reservation → notary → Registro Mercantil → AEAT NIF)

ZEC Canarias: the 4% regime for US-controlled entities

The Zona Especial Canaria (ZEC) is a state-aid approved tax incentive zone covering the Canary Islands (primarily Las Palmas de Gran Canaria and Santa Cruz de Tenerife). The headline benefit: 4% corporate income tax on eligible profits, versus 25% standard Spanish rate.

Qualifying conditions for ZEC registration

  1. Legal registration in the Canary Islands — the SL must be incorporated with registered address in the Canary Islands
  2. Real economic activity — genuine operations in the Canary Islands (not a letterbox)
  3. Minimum employment: 5 workers in the Canary Islands within 2 years (for main islands); 3 workers for smaller islands
  4. Minimum investment: €100,000 in fixed assets (tangible or intangible) in the Canary Islands within 2 years
  5. Qualifying activity: Most commercial, manufacturing, technology, and services activities qualify. Excluded: banking, insurance, financial intermediation, and certain intra-group activities

US-specific ZEC considerations

  • GILTI exposure: ZEC’s 4% rate is below the current GILTI minimum. US shareholders of ZEC entities need to model GILTI with their US CPA — the US may impose a top-up to the GILTI minimum rate, partially or fully eliminating the ZEC advantage depending on deductions available (confirm the current GILTI effective rate and applicable deductions post-OECD Pillar Two alignment with your US CPA)
  • CFC status: A Spanish ZEC SL controlled by a US person is typically a CFC. Subpart F income calculations apply.
  • Transfer pricing: Intercompany transactions with the US parent must be arm’s-length; ZEC’s low rate makes the AEAT transfer-pricing scrutiny of intercompany arrangements intense

Despite the GILTI complexity, ZEC remains an attractive structure for US founders where US-side operations are also present: the ZEC entity handles EU-side revenues at 4%, US operations remain in the US entity, and GILTI is managed with competent US CPA guidance.

Entrepreneur Visa + Beckham Law: the founder combination

For US founders creating new businesses in Spain (not transferring an existing US operation), the Entrepreneur Visa + Beckham Law combination provides both residency rights and a personal income tax reduction:

Entrepreneur Visa (Visado de Emprendedor)

Trigger: Creating an innovative business in Spain, certified by ENISA (Empresa Nacional de Innovación S.A., a Spanish state-owned investment company). ENISA evaluates the business plan for innovation and viability, not for investment potential.

Process: Business plan preparation → ENISA online application → ENISA review (30–60 days) → ENISA certificate → Spanish consulate visa application → Spain arrival → DGIPYME authorization → Social Security registration.

Beckham Law compatibility: Yes. Founders admitted via Entrepreneur Visa can apply for Beckham Law under the emprendedor category of Article 93 LIRPF, provided they have not been Spanish tax resident in the preceding 5 years.

Salary under Beckham: The founder’s salary from the Spanish SL is Spanish-source employment income — taxed at 24% flat under Beckham Law. Dividends from the SL are also Spanish-source and taxed at Beckham rates. Foreign-source income (US salary if retained, US dividends) is exempt from Spanish tax under Beckham but subject to IRS savings-clause taxation.

US LLC or C-Corp expanding to Spain: branch vs subsidiary

For US companies (as opposed to individual founders) expanding to Spain:

Branch (Sucursal)

  • No new legal entity; the US company registers a branch in the Spanish Registro Mercantil
  • The US company itself is taxed in Spain on branch profits
  • Reporting requirement: audited financial statements for the branch
  • Transfer pricing: branch vs head-office allocations required under OECD guidelines
  • US tax: branch profits may be subject to US branch profits tax (equivalent to dividend withholding)
  • Best for: Large US multinationals with significant Spain revenue who want operational simplicity and are comfortable with parent-entity exposure

Subsidiary (Spanish SL)

  • New Spanish legal entity; separate liability; full corporate tax and compliance
  • US parent is a shareholder; transfer pricing required for intercompany transactions
  • IRS Form 5471 required if US ownership ≥10%
  • Best for: Most US SMEs and founders — cleaner liability isolation, ZEC eligibility, Beckham Law compatibility for founder-employees, better preparation for future EU investors

The Form 5471 obligation: what your US CPA needs from BMC

When a US person owns ≥10% of a foreign corporation — including a Spanish SL — they must file IRS Form 5471 as an attachment to their Form 1040 each year. BMC provides the following data package to your US CPA for Form 5471 completion:

  • Spanish SL financial statements (balance sheet + P&L in USD translated at applicable rates)
  • Detailed income-by-category breakdown (Schedule C)
  • Related-party transaction summary (Schedule M inputs)
  • Transfer pricing documentation (Spanish local file)
  • ZEC income eligible profits schedule (if applicable)
  • Distributable earnings and accumulated E&P data

This package reduces your US CPA’s Form 5471 preparation time and ensures the US and Spanish filings are fully consistent.

FAQ

Frequently asked questions

A Sociedad Limitada (SL) is Spain's most common private company structure — functionally the closest Spanish equivalent to a US LLC. Key characteristics: minimum capital €1 since October 2022 under Law 18/2022, €3,000 recommended (can be contributed in kind); liability limited to capital contribution, although while capital is below €3,000 shareholders answer jointly for the shortfall up to €3,000 in a liquidation without enough assets; management by one or more administradores (directors); no minimum number of shareholders (a single-person SL, Sociedad Limitada Unipersonal, is possible). Key differences from a US LLC: (1) A Spanish SL is always taxed as a separate corporate entity (Impuesto sobre Sociedades, 25% standard rate) — there is no pass-through option equivalent to a US LLC's default treatment. (2) Transfer pricing rules apply between the SL and its US shareholder for related-party transactions, requiring formal documentation. (3) A US person owning ≥10% of the SL triggers IRS Form 5471 filing requirements (as a Category 3, 4, or 5 filer depending on percentage and relationship). BMC handles SL formation and ongoing compliance; your US CPA handles the Form 5471.
The Zona Especial Canaria (ZEC) is Spain's approved state-aid regime for the Canary Islands, authorised by the European Commission under EU state-aid rules, providing a reduced corporate income tax rate of 4% on eligible profits — versus the standard 25% Spanish rate. ZEC entities must: (1) be registered in the Canary Islands (Gran Canaria or Tenerife, main islands); (2) have a real commercial presence (office, employees) in the Canary Islands; (3) employ a minimum number of workers (typically ≥5 employees, but varies by activity and geography); (4) carry out qualifying economic activities (most commercial, tech, and services activities qualify; banking, insurance, and intra-group financing excluded). US-controlled Spanish SLs can qualify for ZEC, provided the activity and employment requirements are met. However, US shareholders must consider the GILTI (Global Intangible Low-Taxed Income) rules: ZEC's 4% rate may be below the GILTI minimum rate, potentially triggering US-side top-up tax (confirm the applicable GILTI tested income rate and deductions for the current tax year with your US CPA). BMC assesses ZEC eligibility in full coordination with your US CPA's GILTI analysis.
A permanent establishment (PE) arises when a foreign company has a sufficient taxable presence in Spain — a fixed place of business (office, workshop, server room) or a dependent agent who habitually concludes contracts on behalf of the foreign company. If a US LLC or C-Corp has employees or founders based in Spain who are managing the business, signing contracts, or making strategic decisions from Spain, the Spanish AEAT may determine that the US entity has a Spanish PE. A PE means the US entity is subject to Spanish corporate income tax (25% or ZEC rate if applicable) on the profits attributable to the Spanish operations — retrospectively from the moment the PE arose. The absence of a formal Spanish entity registration does not prevent PE characterisation; it simply means the PE exists informally with no clean compliance history. Best practice for US founders moving to Spain: form a Spanish SL before commencing significant business activity in Spain. BMC assesses PE risk for existing US structures and advises on the remediation timeline.
Form 5471 (Information Return of U.S. Persons With Respect to Certain Foreign Corporations) is an IRS reporting form required from US persons who own 10% or more of a foreign corporation — including a Spanish SL. As a US citizen controlling or significantly owning a Spanish SL, you are typically a Category 4 or Category 5 filer (or both). The form requires: basic corporate information, financial statements, income by category, inter-company transactions (Schedule M), related-party balances (Schedule B), and — if the SL is a Controlled Foreign Corporation (CFC) — Subpart F income and GILTI calculations. Failure to file Form 5471 when required: penalties of $10,000 per failure, rising to $50,000 for continued non-compliance after IRS notification, plus potential reduction of FTC benefits. The Form 5471 is filed as an attachment to the US person's Form 1040. BMC prepares the Spanish corporate tax package in a format that gives your US CPA all inputs needed for Form 5471 Schedule completion.
Yes — this is the designed pathway for US founders creating innovative businesses in Spain. The Entrepreneur Visa (Visado de Emprendedor, Ley 14/2013 as amended by Ley 28/2022) provides residency rights to founders whose business is certified by ENISA as innovative. Once you are Spanish tax resident via the Entrepreneur Visa, you can apply for Beckham Law under the entrepreneurial activity category of Article 93 LIRPF, provided you have not been Spanish tax resident in any of the preceding 5 years and your entrepreneurial activity meets the qualifying criteria. The Beckham Law benefit: your salary or drawings from the Spanish SL (Spanish-source income) are taxed at 24% flat instead of progressive IRPF with a combined top rate of 45% to 53.85% depending on the region (2026). The combined Entrepreneur Visa + Beckham Law package is one of the most favourable regimes for US founders globally — BMC manages both the visa process and the Beckham application in a coordinated single engagement.
A **branch** (sucursal) is a registered presence of a foreign company in Spain — the US parent company itself is registered as operating in Spain, without creating a new separate legal entity. The Spanish AEAT taxes the branch on profits attributable to Spanish operations. The US parent retains direct liability for the branch's obligations. A **subsidiary** (filial) is a separate Spanish SL or SA with the US company as shareholder — a new legal entity with separate liability, its own corporate tax return, its own accounts, and its own governance. For most US founders and US SMEs expanding to Spain, the subsidiary (SL) is the better structure: limited liability isolated in Spain, cleaner transfer-pricing documentation, simpler Form 5471 filing (Category based on shareholding in a separate entity rather than branch PE analysis), and eligibility for ZEC Canarias if applicable. Branches make more sense for large US multinationals with significant Spanish revenue who want a simpler structure and are willing to expose the parent entity to Spanish jurisdiction. BMC advises on the branch-vs-subsidiary choice as part of the initial structure analysis.
Transfer pricing rules require that transactions between a US parent company and a Spanish subsidiary (SL) be conducted at arm's length — i.e. at the price that independent third parties would agree. Spain's transfer pricing rules (Articles 18 and 18 bis of the Ley del Impuesto sobre Sociedades) require formal documentation for related-party transactions above certain thresholds: a master file (maestro) and a local file (local) for Spanish entities with related-party transactions above €1 million per year. Common related-party transactions that need to be priced: management fees from US parent to Spanish SL, IP licensing from US entity, intercompany loans, IT infrastructure costs, and shared service allocations. On the US side, outbound transactions to a foreign related party also trigger IRC Section 482 transfer pricing rules; your US CPA ensures consistency. BMC prepares the Spanish transfer-pricing documentation in coordination with the US-side analysis.

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Frequently asked questions

Questions about US Founders Starting a Business in Spain 2026: SL, ZEC, Branch vs Subsidiary | BMC

A Sociedad Limitada (SL) is Spain's most common private company structure — functionally the closest Spanish equivalent to a US LLC. Key characteristics: minimum capital €1 since October 2022 under Law 18/2022, €3,000 recommended (can be contributed in kind); liability limited to capital contribution, although while capital is below €3,000 shareholders answer jointly for the shortfall up to €3,000 in a liquidation without enough assets; management by one or more administradores (directors); no minimum number of shareholders (a single-person SL, Sociedad Limitada Unipersonal, is possible). Key differences from a US LLC: (1) A Spanish SL is always taxed as a separate corporate entity (Impuesto sobre Sociedades, 25% standard rate) — there is no pass-through option equivalent to a US LLC's default treatment. (2) Transfer pricing rules apply between the SL and its US shareholder for related-party transactions, requiring formal documentation. (3) A US person owning ≥10% of the SL triggers IRS Form 5471 filing requirements (as a Category 3, 4, or 5 filer depending on percentage and relationship). BMC handles SL formation and ongoing compliance; your US CPA handles the Form 5471.
The Zona Especial Canaria (ZEC) is Spain's approved state-aid regime for the Canary Islands, authorised by the European Commission under EU state-aid rules, providing a reduced corporate income tax rate of 4% on eligible profits — versus the standard 25% Spanish rate. ZEC entities must: (1) be registered in the Canary Islands (Gran Canaria or Tenerife, main islands); (2) have a real commercial presence (office, employees) in the Canary Islands; (3) employ a minimum number of workers (typically ≥5 employees, but varies by activity and geography); (4) carry out qualifying economic activities (most commercial, tech, and services activities qualify; banking, insurance, and intra-group financing excluded). US-controlled Spanish SLs can qualify for ZEC, provided the activity and employment requirements are met. However, US shareholders must consider the GILTI (Global Intangible Low-Taxed Income) rules: ZEC's 4% rate may be below the GILTI minimum rate, potentially triggering US-side top-up tax (confirm the applicable GILTI tested income rate and deductions for the current tax year with your US CPA). BMC assesses ZEC eligibility in full coordination with your US CPA's GILTI analysis.
A permanent establishment (PE) arises when a foreign company has a sufficient taxable presence in Spain — a fixed place of business (office, workshop, server room) or a dependent agent who habitually concludes contracts on behalf of the foreign company. If a US LLC or C-Corp has employees or founders based in Spain who are managing the business, signing contracts, or making strategic decisions from Spain, the Spanish AEAT may determine that the US entity has a Spanish PE. A PE means the US entity is subject to Spanish corporate income tax (25% or ZEC rate if applicable) on the profits attributable to the Spanish operations — retrospectively from the moment the PE arose. The absence of a formal Spanish entity registration does not prevent PE characterisation; it simply means the PE exists informally with no clean compliance history. Best practice for US founders moving to Spain: form a Spanish SL before commencing significant business activity in Spain. BMC assesses PE risk for existing US structures and advises on the remediation timeline.
Form 5471 (Information Return of U.S. Persons With Respect to Certain Foreign Corporations) is an IRS reporting form required from US persons who own 10% or more of a foreign corporation — including a Spanish SL. As a US citizen controlling or significantly owning a Spanish SL, you are typically a Category 4 or Category 5 filer (or both). The form requires: basic corporate information, financial statements, income by category, inter-company transactions (Schedule M), related-party balances (Schedule B), and — if the SL is a Controlled Foreign Corporation (CFC) — Subpart F income and GILTI calculations. Failure to file Form 5471 when required: penalties of $10,000 per failure, rising to $50,000 for continued non-compliance after IRS notification, plus potential reduction of FTC benefits. The Form 5471 is filed as an attachment to the US person's Form 1040. BMC prepares the Spanish corporate tax package in a format that gives your US CPA all inputs needed for Form 5471 Schedule completion.
Yes — this is the designed pathway for US founders creating innovative businesses in Spain. The Entrepreneur Visa (Visado de Emprendedor, Ley 14/2013 as amended by Ley 28/2022) provides residency rights to founders whose business is certified by ENISA as innovative. Once you are Spanish tax resident via the Entrepreneur Visa, you can apply for Beckham Law under the entrepreneurial activity category of Article 93 LIRPF, provided you have not been Spanish tax resident in any of the preceding 5 years and your entrepreneurial activity meets the qualifying criteria. The Beckham Law benefit: your salary or drawings from the Spanish SL (Spanish-source income) are taxed at 24% flat instead of progressive IRPF with a combined top rate of 45% to 53.85% depending on the region (2026). The combined Entrepreneur Visa + Beckham Law package is one of the most favourable regimes for US founders globally — BMC manages both the visa process and the Beckham application in a coordinated single engagement.
A **branch** (sucursal) is a registered presence of a foreign company in Spain — the US parent company itself is registered as operating in Spain, without creating a new separate legal entity. The Spanish AEAT taxes the branch on profits attributable to Spanish operations. The US parent retains direct liability for the branch's obligations. A **subsidiary** (filial) is a separate Spanish SL or SA with the US company as shareholder — a new legal entity with separate liability, its own corporate tax return, its own accounts, and its own governance. For most US founders and US SMEs expanding to Spain, the subsidiary (SL) is the better structure: limited liability isolated in Spain, cleaner transfer-pricing documentation, simpler Form 5471 filing (Category based on shareholding in a separate entity rather than branch PE analysis), and eligibility for ZEC Canarias if applicable. Branches make more sense for large US multinationals with significant Spanish revenue who want a simpler structure and are willing to expose the parent entity to Spanish jurisdiction. BMC advises on the branch-vs-subsidiary choice as part of the initial structure analysis.
Transfer pricing rules require that transactions between a US parent company and a Spanish subsidiary (SL) be conducted at arm's length — i.e. at the price that independent third parties would agree. Spain's transfer pricing rules (Articles 18 and 18 bis of the Ley del Impuesto sobre Sociedades) require formal documentation for related-party transactions above certain thresholds: a master file (maestro) and a local file (local) for Spanish entities with related-party transactions above €1 million per year. Common related-party transactions that need to be priced: management fees from US parent to Spanish SL, IP licensing from US entity, intercompany loans, IT infrastructure costs, and shared service allocations. On the US side, outbound transactions to a foreign related party also trigger IRC Section 482 transfer pricing rules; your US CPA ensures consistency. BMC prepares the Spanish transfer-pricing documentation in coordination with the US-side analysis.
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