Jacob Salama Tax Lawyer
Jacob SalamaInternational Tax Lawyer Β· Spain
🌍 US to Spain Specialist βš–οΈ 500+ International Clients πŸ“‹ Colegiado nΒΊ 11.294 ICAMΓ‘laga 🀝 US-Spain Treaty Expert

Moving from San Francisco to Spain: Big Tech RSUs, Founders & QSBS Tax Guide

Google, Apple, Meta RSU packages, founder equity, QSBS exclusion planning and CA Franchise Tax Board exit strategy for Bay Area professionals moving to Spain.

What San Francisco tech professionals need to know before moving to Spain

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Big Tech RSU Packages

Employees at Google, Meta, Apple, Netflix and other Bay Area technology companies often hold RSU packages worth hundreds of thousands of dollars. Moving to Spain triggers IRPF taxation at vesting on the Spanish-attributed portion. The attribution calculation β€” and the coordination with California's continued claim on CA-work-period gains β€” requires careful modelling before the move.

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QSBS and Founder Equity

Section 1202 QSBS exclusion (up to $10M or 10x basis excluded from US federal tax on qualified small business stock) is a uniquely US benefit. Founders planning to move to Spain before a liquidity event must analyse whether to realise gains under QSBS before Spanish residency commences β€” Spain does not recognise this exclusion.

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California Franchise Tax Board Exit

California is the most aggressive US state for taxing departing residents. The FTB applies a domicile test with an exhaustive 163-factor checklist. Bay Area residents need a comprehensive exit plan β€” changing driver's license, closing local accounts, registering to vote in Spain β€” before the move to withstand FTB scrutiny.

The four areas every San Francisco expat must plan around

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Tax Residency

Coordinating CA domicile abandonment with Spanish residency acquisition. The window between departing CA and triggering Spanish IRPF β€” and how it is best used.

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Treaty Benefits

Spain-US treaty treatment of RSU income with multi-jurisdiction vesting periods. QSBS gain characterisation under Article 13 (capital gains).

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Reporting Obligations

FBAR, FATCA. California non-resident returns for CA-sourced RSU income. Model 720 (unless on Beckham Law). ESPP reporting in Spain.

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Planning Opportunities

Pre-move QSBS gain realisation before Spanish residency. ISO/NQSO exercise timing relative to residency change. Beckham Law for qualifying engineers and executives.

Why clients from San Francisco choose Jacob Salama

Jacob Salama has advised US clients from the Bay Area on their Spanish tax position β€” particularly on equity compensation and CA state exit strategy.

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Talk to Jacob about your Bay Area situation

QSBS planning, Big Tech RSU attribution, CA FTB exit β€” book a free 30-minute consultation before you make the move to Spain.

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Voluntary Disclosure and Catching Up on US-Spain Compliance

Many US nationals who have been living in Spain for months or years without filing Spanish returns, or without disclosing US accounts to the AEAT via Modelo 720, find themselves in a position of historical non-compliance. Jacob Salama regularly assists clients in regularising their position across both jurisdictions before the relevant authorities identify the gaps.

On the US side, the IRS Streamlined Procedures (Streamlined Foreign Offshore Procedure for bona fide foreign residents, or Streamlined Domestic Offshore for US-based filers) provide a reduced-penalty path for non-wilful failures to file FBARs, Form 8938, and delinquent income tax returns. Eligibility requires that the failure was non-wilful β€” meaning it resulted from a lack of understanding of the obligations rather than a deliberate decision to conceal assets.

On the Spanish side, voluntary disclosure of previously unreported foreign assets and income prior to an AEAT investigation significantly reduces penalties and eliminates the risk of criminal referral. The 2022 reforms to Modelo 720 β€” following the ECJ C-127/12 ruling β€” removed the most disproportionate penalties, but late filing remains subject to standard tax surcharges under the Ley General Tributaria.

Leaving San Francisco: California Tax Severance and Your Spanish Entry

When a San Francisco resident establishes tax residency in Spain, they simultaneously exit a US state tax regime and enter Spain's IRPF system β€” which taxes worldwide income at rates up to 47% for general residents, or at a flat 24% for those qualifying under the Beckham Law (Article 93 LIRPF, expanded by the 2022 Startup Law). California's FTB is the most aggressive state tax authority in the US. San Francisco residents must document a clear and complete departure β€” the FTB asserts continuing residency for up to 546 days after departure if California domicile indicators persist. The most common indicator the FTB focuses on is retention of a California residence for personal use.

The US-Spain DTA (1990, amended by the 2013 Protocol) contains a Saving Clause under Article 1(4) preserving the US right to tax its citizens worldwide. The foreign tax credit under Article 24 and IRC Β§901 is the primary double-taxation relief mechanism, but its correct application requires careful sequencing between the two systems.

Key Tax Issues for San Francisco Professionals Moving to Spain

  • Big Tech RSU packages: Apple, Google, Meta and Salesforce employees carry unvested RSU packages β€” California asserts sourcing of these awards based on the grant date, meaning California may tax a portion of RSUs vesting after departure if the grant period began during California residency. This position is frequently contested in FTB appeals.
  • QSBS and founder equity: the IRC Β§1202 exclusion for Qualified Small Business Stock is one of the most valuable US tax benefits β€” but it is not recognised by Spain. San Francisco founders who have accumulated QSBS exclusions should consider the timing of share disposals carefully. A disposal before establishing Spanish residency eliminates the Spanish tax entirely on the excluded portion.
  • California Franchise Tax Board exit scrutiny: the FTB is the most aggressive state tax authority in the US. San Francisco residents who establish Spanish residency will receive FTB scrutiny of their departure-year return. The FTB may assert that a California domicile persists if the individual retains California property, a California driver's licence, California bank accounts or other domicile indicators after departure.

Tax Rate Comparison: San Francisco vs Spain

Tax In San Francisco In Spain
California state income tax1%–13.3% progressive; Franchise Tax Board (FTB)Eliminated on departure
US federal income tax10%–37%Still applies (Saving Clause)
Spanish IRPF β€” employmentN/A24% (Beckham) / up to 47%
Spanish IRPF β€” savings/investmentN/A19%–28%
Modelo 720 / FBAR / FATCAFBAR + FATCA onlyModelo 720 + FBAR + FATCA

US Retirement Accounts for San Francisco Residents Moving to Spain

Traditional 401(k) and IRA distributions are treated as private pension income under DTA Article 17. Spain has the primary taxing right once the recipient is a Spanish tax resident. Contributions made on a pre-tax basis and their accumulated growth are subject to IRPF on withdrawal at rates up to 47% under the general scale or 24% under the Beckham regime.

Roth IRA distributions present a well-documented double-taxation trap. The IRS treats qualified Roth distributions as tax-free. Spain does not recognise this exemption β€” the AEAT treats Roth IRA distributions as taxable investment income under IRPF, meaning contributions already subject to US tax may be taxed again in Spain with no DTA remedy.

Pre-departure planning should address: timing of Roth conversions before establishing Spanish residency; evaluation of accelerated distributions while still a US resident; rollover strategies that simplify Spanish reporting; and Modelo 720 planning β€” Spanish residents must declare foreign pension accounts above €50,000 per category annually.

Pre-departure checklist for San Francisco residents

  • β†’Complete all pre-move planning actions (Roth conversions, asset disposals, deferred compensation elections) before establishing Spanish residency
  • β†’Submit Modelo 149 within six months of Spanish Social Security registration to access the Beckham Law 24% flat rate
  • β†’File Modelo 720 by 31 March after the first full year of Spanish residency β€” declare all US accounts, pension funds and real estate above €50,000 per category
  • β†’Continue filing US federal returns annually: FinCEN 114 (FBAR) by 15 April, Form 8938 attached to Form 1040
  • β†’Review unvested equity compensation β€” the Spain/US income split is calculated by service days in each jurisdiction during the grant-to-vest period

Bay Area Tech Equity: RSU Sourcing and the California Departure Date

The single most important planning decision for San Francisco technology professionals is the choice of departure date relative to equity vesting schedules. California's FTB sources RSU income to California based on the number of service days in California during the grant-to-vest period. An employee who received an RSU grant on 1 January 2022, vests over four years, and departs California on 1 January 2024 will have approximately 50% of each vesting tranche sourced to California β€” and will owe California income tax on that portion regardless of where they live at vesting.

Spain will simultaneously tax 100% of the employment-income element of RSUs vesting after the Spanish residency date β€” under DTA Article 24, the Spanish IRPF charge is reduced by a credit for the California tax attributable to the same income. However, the credit is limited to the lower of the Spanish or California rate, meaning the higher-rate system imposes the full difference.

For San Francisco founders with QSBS stakes: a qualifying disposal before establishing Spanish residency eliminates all Spanish tax on the excluded portion. Once Spanish residency is established, the AEAT will tax the full gain under IRPF β€” there is no Spanish equivalent of the IRC Β§1202 exclusion.

πŸ“š Key Tax Resources

βš–οΈ Beckham Law 2024: Complete Guide πŸ‡ΊπŸ‡Έ FBAR & FATCA for US Expats in Spain πŸ“„ US-Spain Double Tax Treaty πŸ“‹ Modelo 720: Foreign Assets πŸ’° Roth IRA in Spain: Tax Treatment πŸ“ˆ Stock Options & Double Taxation πŸ’» Digital Nomad Visa: Tax Guide 🏠 Tax Residency Tie-Breaker