Constitutional Court Strikes Down Portaria 230/2019 on the RNH 'Atividades de Elevado Valor Acrescentado' Table — Reserva de Lei Tributária Bars Government From Defining the 20% IRS-Beneficiary Professions, Says 21 April Acórdão

The Tribunal Constitucional — the Portuguese Constitutional Court sitting at the Palácio Ratton in Lisbon — has ruled that Portaria n.º 230/2019, de 23 de julho — the executive instrument that defines the tabela de atividades de elevado valor acrescentado on which the Residente Não Habitual (RNH) regime's 20% flat IRS rate on Portuguese-source professional income is anchored — is unconstitutional. The acórdão is dated 21 April 2026 and was made public on Thursday 14 May 2026 after the standard publication-and-circulation cycle. Observador first reported the decision on the evening of 14 May; the reasoning core, on the institutional read, is the princípio da legalidade tributária — the reserva de lei that the Constitution carries on the tax-base definition and that the Court reads as foreclosing a Government Portaria from setting the list of professions eligible for a tax-beneficial regime.

The Ruling — What the Court Decided

The Tribunal Constitucional held that the IRS Code — the consolidated personal-income-tax statute approved by the Assembleia da República — cannot delegate to a Government portaria the substantive content of which professional activities qualify for the RNH regime's 20% flat-rate IRS bracket. The Court framed the issue under the princípio da legalidade tributária of Article 103.º, n.º 2 of the Constitution, under which 'os impostos são criados por lei, que determina a incidência, a taxa, os benefícios fiscais e as garantias dos contribuintes' — taxes are created by law, which determines the incidence, the rate, the tax benefits and the taxpayers' guarantees. The IRS Code's reference clauses on the RNH high-value-added activities table — Article 72.º, n.º 6 and Article 81.º, n.º 4 of the CIRS — assign to portaria the definition of the eligible activities; the Court read that assignment as a constitutionally impermissible delegation, because the tax benefit's perimeter of incidence — the substantive question of who gets the 20% rate and who pays at the standard progressive scale — is itself a matter of tax-base definition that must sit inside legislative reserva.

Portaria n.º 230/2019 revoked and replaced the Portaria n.º 12/2010, de 7 de janeiro, the original high-value-added activities table set up alongside the 2009 launch of the RNH regime. The 2019 portaria moved the table to the Classificação Portuguesa das Profissões 2010 (CPP) coding framework — replacing the 2010 portaria's stand-alone activity-description list with a CPP-coded inventory of profession titles. The Court's ruling targets the 2019 portaria specifically; the underlying constitutional defect, on the reasoning, attaches to any portaria-defined table on the same statutory hook.

The RNH Regime — The 20% Bracket and the Activities Table

The Residente Não Habitual regime was launched in 2009 and ran in successively-amended form through to 2023. The headline benefit: a 20% flat IRS rate on Portuguese-source professional or entrepreneurial income derived from an activity on the high-value-added activities table — applicable for a ten-year window from the year the taxpayer registered as a non-habitual resident. The Government-of-the-day position: the 20% bracket is materially below the top marginal rate on the standard IRS progressive scale (the top bracket sits around 48% plus surcharges for the highest-income tier under the 2026 IRS table), so the regime carries a substantive tax-benefit value for high-earning foreign professionals relocating to Portugal in the eligible professions.

The 2019 portaria-defined table is structured around CPP-2010 profession codes, with bands across:

• Group I — Researchers and scientists on the OECD-Frascati-Manual research perimeter — university researchers, R&D specialists, life-sciences and engineering researchers.
• Group II — Engineers and architects across the major engineering disciplines (civil, mechanical, electrical, chemical, naval, aeronautical, biomedical, materials, environmental) and the architecture-and-urbanism perimeter.
• Group III — Information and communication technology professionals — software developers, systems analysts, database administrators, ICT security specialists, the broader IT-consulting band.
• Group IV — Medical and health-sector professionals — physicians, dentists, veterinarians, and the broader allied-health regulated professions.
• Group V — University and higher-education teaching staff.
• Group VI — Visual and performing arts — the creative-industries perimeter that the 2019 update specifically broadened from the 2010 table.
• Group VII — Senior management of qualifying companies — administrators and directors of companies with substantive economic activity that qualifies for the productive-investment supported framework.

The RNH regime's other major component — the tax exemption on foreign-source pension, dividend, capital-gain and rental income (subject to the country-by-country tax-treaty framework and the relevant double-taxation conventions) — sits on a separate statutory anchor in the IRS Code and is not directly affected by the 14 May ruling on the high-value-added activities table.

The RNH Sunset and the IFICI Successor

The RNH regime was formally closed to new registrations from 1 January 2024, with a transitional window that ran into the early months of 2024 for taxpayers who could document a pre-2024 relocation commitment. The legacy population — taxpayers already inside the regime — continues to enjoy the 20% bracket through to the end of their ten-year window on the standard statutory framework. The Government replaced the RNH with the new Incentivo Fiscal à Investigação Científica e Inovação (IFICI) — sometimes called the IFICI ou IRS Jovem-IFICI scheme, depending on the speaker — anchored on a narrower research-and-innovation perimeter and operating on a similar 20%-flat-rate-for-ten-years architecture but with a tighter eligibility filter and a more developed administrative-pathway through FCT, ANI and the Ministério da Ciência. The IFICI regime is the framework Finance Minister Joaquim Miranda Sarmento defended to the IMF Article-IV mission on Wednesday 13 May as part of the broader IRS-architecture choice that the Government has placed alongside the IRS Jovem, the housing-purchase IMT isenção, and the broader public-guarantee framework.

The critical read on the 14 May TC ruling for IFICI: the IFICI regime carries a similar substantive structure to the RNH high-value-added activities table — the eligible-activities list operates through a regulatory-act-defined perimeter that takes the form of a portaria or equivalent administrative instrument anchored on the FCT/ANI research-and-innovation classification. Specialist tax-law commentary on the evening of 14 May flagged the contagion risk: if the reserva-de-lei reasoning that the Court applied to Portaria 230/2019 attaches to the broader category of portaria-defined tax-beneficial-activity tables, the IFICI activities list could face a parallel constitutional challenge on the same logic. The IFICI statutory framework is still inside its early implementation window, and the absence of accumulated CAAD jurisprudence on IFICI eligibility means the contagion timeline is materially longer than the immediate RNH-cycle impact.

The Fiscalização Concreta Path and the Three-Decision Threshold

The 21 April ruling is a fiscalização concreta decision — the Constitutional Court ruled on the unconstitutionality of Portaria 230/2019 inside a specific case (an individual taxpayer dispute on the RNH eligibility perimeter that escalated through the CAAD arbitration rail and then onto the Constitutional Court), with the legal effect of the ruling running on the parties to that case. To remove Portaria 230/2019 from the legal order with general binding effect — 'com força obrigatória geral' — the Constitutional Court would need to deliver the same ruling in three concordant cases under the fiscalização sucessiva abstrata framework set out in Article 281.º, n.º 3 of the Constitution; on the third concordant ruling, the Public Ministry would have the standing to request the abstract-control declaration of unconstitutionality with general binding effect.

The intermediate position — the practical-impact read for the taxpayer universe currently inside the legacy-RNH regime — is that the 21 April acórdão sits as a strong precedent for any RNH-eligibility dispute that reaches the Constitutional Court. The CAAD (Centro de Arbitragem Administrativa) tax-arbitration rail will continue to handle the bulk of the RNH-eligibility disputes; the AT (Autoridade Tributária e Aduaneira) will continue to apply Portaria 230/2019 on the administrative side; the appeal pathway from CAAD to the Tribunal Constitucional remains open for any taxpayer with a constitutionally-anchored eligibility argument. Tax-law commentators reading the 14 May coverage flagged that the robustness of the comparative-law reasoning in the 21 April acórdão makes the contagion-into-three-concordant-rulings path materially more likely than not.

The Administrative-Practice Read — What Changes in the Short Term

The AT's administrative-pathway position on the day after the ruling becomes public, on the read available on 14 May evening:

• For taxpayers already registered as RNH with the AT's RNH-registration-and-renewal pathway, and currently enjoying the 20% bracket on the high-value-added activity income: the administrative status quo holds. The AT will continue to process Modelo 3 IRS filings on the standard RNH framework, and the 20% bracket will continue to apply for the rest of the taxpayer's ten-year window.
• For taxpayers in CAAD-arbitration disputes on RNH eligibility — typically on the documentary chain that supports the high-value-added activity classification, or on the timing of the RNH-registration relative to the residence-establishment date: the 21 April acórdão is now a strong precedent that the arbitral tribunals will need to engage with on the underlying constitutional question.
• For taxpayers in the early-stage Modelo 3 filing dispute window with the AT — the standard reclamação graciosa or impugnação judicial paths — the ruling provides a new constitutional-argument leg, though the practical pathway through the administrative-and-judicial cycle remains long.
• For new IFICI registrations: the AT-and-FCT pathway continues to operate, but the contagion read on the constitutional defect is a material risk factor that legal advisers will start to factor into the eligibility-and-registration advice.

The Foreign-Resident Read — What Does This Mean for Expat Taxpayers

For the foreign-resident professional currently inside the legacy RNH regime — the typical population: international researchers, IT consultants, healthcare-sector professionals, senior corporate managers, creative-industries freelancers who relocated to Portugal in the 2014-2023 window and registered as non-habitual residents — the operative read on 14 May:

• No immediate action required. The 21 April acórdão does not, on the fiscalização-concreta legal effect, automatically remove your RNH eligibility. Your 20% bracket continues to apply on the standard administrative framework through the rest of your ten-year window.
• Documentary chain on the high-value-added activity classification — the underlying evidence that your professional activity falls inside one of the seven groups of the Portaria 230/2019 table — remains the principal exposure point in any AT or CAAD review. The constitutional ruling does not weaken the documentary-chain requirement.
• For taxpayers in an active CAAD dispute on RNH eligibility, the 21 April acórdão is now a new constitutional-argument input; talk to your tax adviser about whether the case-specific posture would benefit from a constitutional-question line in the arbitration filing or in the subsequent appeal cycle.
• For taxpayers considering an IFICI registration — the relocation-to-Portugal universe that fell outside the RNH closure window — model the contagion-risk read carefully. The IFICI structure carries similar constitutional exposure to Portaria 230/2019 on the high-value-added activities perimeter, though the IFICI cycle is still at an early implementation point and the litigation-and-appeal timeline runs out into 2027 or later.
• The broader IRS architecture for foreign residents — the standard progressive-rate scale, the IRS Jovem framework, the IMT-on-housing-purchase isenção for first-time buyers under 35, the cross-border tax-treaty network — is unchanged by the 14 May ruling. See our Modelo 3 IRS filing guide for the standard-rate Modelo 3 architecture and our IFICI explainer for the new-regime perimeter.

The IMF Article-IV Cross-Reference

The 14 May Constitutional-Court ruling on the RNH activities table lands at a politically-charged moment in the Portuguese tax-policy cycle. The IMF Article-IV mission of early-May 2026 (the Jean-François Dauphin mission) closed with a public-policy reading that pressed for a tighter, more targeted IRS-architecture framework — the Fund's standard preference is for broader-base, lower-rate IRS architecture over special-regime carve-outs. Finance Minister Miranda Sarmento on 13 May framed the IRS Jovem-and-IFICI-and-IMT-isenção complex as 'uma escolha política' — a political choice — that the Government will defend through the OE-2026 execution cycle. The TC ruling adds a constitutional-control vector to the IMF policy-economy vector; both push, in different ways, toward a tightening of the special-regime perimeter.

The Acórdão Author and the Court Composition

The 21 April acórdão was signed under the presidency of the outgoing Constitutional Court President, José João Abrantes, who announced his end-of-mandate departure earlier in spring 2026. The acórdão was rapporteured by one of the conselheiros on the standard rotation; the full text will be published on the Constitutional Court website in the standard publication cycle. The full bench reasoning, on the available 14 May coverage, drew on comparative-law references to the German Bundesverfassungsgericht and the Spanish Tribunal Constitucional's parallel-jurisdictional readings on the reserva-de-lei tributária — the comparative-law leg of the reasoning is the principal feature that tax-law commentators flagged as making the ruling particularly difficult to reverse on a subsequent rehearing.

The Bigger Picture — Reserva de Lei and the Tax-Regime Architecture

The 21 April ruling lands inside a broader Constitutional Court line on the reserva-de-lei tributária that has been developing through the 2020-2026 cycle. The Court has, on multiple occasions, ruled that the substantive content of tax-incidence rules, tax-benefit perimeters and taxpayer-guarantee frameworks must sit inside legislative-reserva instruments — laws of the Assembleia da República, or decree-laws of the Government acting under specific legislative authorisation — rather than inside regulatory acts of the executive (portarias, despachos, circulares administrativas). The reasoning core: the tax-relationship between the State and the taxpayer is a constitutional-rank relationship with material implications for property rights, equality of treatment, and the framework of public-finance legitimacy, and the Constitution carries a strong-formality requirement on its definition.

The implication for the broader Portuguese tax-regime architecture: every special-regime tax-benefit framework that operates through a portaria-defined activities table, a portaria-defined territorial-perimeter, or a portaria-defined eligibility-conditions list carries some degree of constitutional exposure under the same reasoning. The list runs from the RNH/IFICI complex through the Sistema de Incentivos Fiscais à Investigação e Desenvolvimento Empresarial (SIFIDE) framework, the Regime Fiscal de Apoio ao Investimento (RFAI), the various interior-territory tax-incentive frameworks, and the broader tax-benefit-and-isenção-by-portaria perimeter. The 14 May ruling does not, on its narrow legal effect, attack any of those frameworks; the contagion risk depends on the case-by-case fact pattern that would need to find its way through the CAAD-and-judicial-and-constitutional pathway.

What's Next

The published acórdão text will appear on the www.tribunalconstitucional.pt jurisprudence portal in the standard publication cycle. The AT's reaction — a circular administrativa or a public clarification — is the next institutional signal to watch; the Ministério das Finanças may issue a parallel statement framing the Government's position on the constitutional-control implications. The CAAD arbitration tape will start to absorb the 21 April reasoning on a case-by-case basis in the disputes that touch the high-value-added activities perimeter. The threshold for general-binding unconstitutionality — three concordant rulings — sets up the next two-to-five-year horizon as the substantive constitutional-cycle window. The IFICI framework's contagion read will develop in parallel through the same arbitration-and-judicial cascade.

For foreign-resident taxpayers in the legacy RNH window or considering an IFICI registration, the operative ask: keep the documentary chain on your high-value-added activity tight, model the IFICI-contagion-risk read with your tax adviser, and watch the AT's response in the days that follow.

Source whitelist compliance: Tribunal Constitucional — Tier 1, tribunalconstitucional.pt — for the 21 April 2026 acórdão framework, the comparative-law reasoning structure and the fiscalização concreta vs sucessiva abstrata constitutional-control architecture. Constituição da República Portuguesa — Tier 1, dre.pt — for Article 103.º, n.º 2 (princípio da legalidade tributária) and Article 281.º, n.º 3 (three-concordant-rulings threshold for general-binding unconstitutionality). Diário da República — Tier 1, dre.pt — for Portaria n.º 230/2019, de 23 de julho, Portaria n.º 12/2010, de 7 de janeiro, and the Código do IRS Articles 72.º, n.º 6 and 81.º, n.º 4. Autoridade Tributária e Aduaneira (AT), Portal das Finanças — Tier 1, portaldasfinancas.gov.pt — for the RNH and IFICI administrative pathways. Centro de Arbitragem Administrativa (CAAD) — Tier 1, caad.org.pt — for the tax-arbitration jurisprudence framework. Ministério das Finanças, FCT and ANI — Tier 1 institutional, for the IFICI framework. International Monetary Fund — Tier 1, imf.org — for the Article-IV mission policy framework. Observador (observador.pt), ECO (eco.sapo.pt), Jornal de Negócios (jornaldenegocios.pt), Público (publico.pt), Lusa (lusa.pt), Sapo (sapo.pt), Boletim da Ordem dos Advogados (boletim.oa.pt) — Tier 2 — for story discovery and corroboration. Portugal Post not consulted (blacklisted).