Portugal Fiscal & Treaty Framework
1. Bilateral Tax Accord & Jurisdictional Allocation (Portugal)
Relocating from Portugal to Spain activates the provisions of the Convenção entre a República Portuguesa e o Reino de Espanha para Evitar a Dupla Tributação (1993). Under Article 15 of this bilateral accord, employment income is strictly allocated based on physical presence. If you move your tax residency from Portugal without electing the 24% Beckham Law regime via Form 149, the Spanish Tax Authority (AEAT) will subject your worldwide earnings to progressive Spanish income tax (IRPF) reaching up to 47% (and up to 54% in autonomous regions like Valencia).
By contrast, electing the Special Regime for Inbound Workers (Article 93 LIRPF) caps your Spanish employment tax at a flat 24% for active labor income up to €600,000 per year. Furthermore, foreign-sourced passive income (such as dividends, interest, or rental yield originating in Portugal) remains 100% EXEMPT from Spanish income tax.
2. Taxation of Portuguese Stock Option Plans (Programa Startups Decreto-Lei n.º 21/2023) and RSUs.
A critical area of divergence for executives from Portugal involves Portuguese Stock Option Plans (Programa Startups Decreto-Lei n.º 21/2023) and RSUs.. Under DGT Binding Ruling V0813-23, unvested equity grants are time-sliced across the vesting grant period: only the fraction of workdays physically performed on Spanish soil is added to your Spanish 24% taxable base.
Regarding corporate distributions, 15% Imposto de Selo / IRS withholding on Portuguese corporate dividends under Article 10. This provides significant cash flow protection compared to standard non-resident rates.
3. Statutory Departure & Compliance Requirements
Prior to relocating from Portugal, you must address local departure formalities: Autoridade Tributária e Aduaneira (AT) update of NIF fiscal address to Spanish residency. Transition from Portuguese NHR (Residente Não Habitual) or NHR 2.0 regime to Spanish Modelo 151. PPR (Plano de Poupança Reforma) withdrawals evaluated under Portugal-Spain Treaty Article 18.