The Window is Closing: Strategic Tax Recovery and the New Era of Real Estate Gains in Portugal

19 May 2026
Francisca Abrantes
Francisca Abrantes, LVP Advogados Tax Consultant

Francisca Abrantes | Tax Consultant

Non-Resident Property Owners in Portugal Face a Critical Tax Deadline

Introduction: A Paradigm Shift in Fiscal Sovereignty


For decades, Portugal’s taxation of real estate capital gains for non-residents was a point of contention between national legislation and European Union principles. The historical practice of taxing 100% of capital gains at a flat 28% rate for non-residents - while residents enjoyed a 50% exemption - finally met its match in the European courts.

Today, we are not just looking at a change in tax rates, but a complete overhaul of how Portugal interacts with international property owners. This insight explores the mandatory shift to "aggregation" (englobamento) and the urgent legal window for tax recovery that are closing – in some cases, permanently. 

The Legal Milestone: The ECJ Ruling and its Aftermath


The catalyst for this change was the European Court of Justice (ECJ) ruling of March 18, 2021 (Case C-388/19). The court was unequivocal: Portugal’s tax regime was discriminatory and restricted the free movement of capital.


Following this landmark decision, the Portuguese Tax Authority (AT) could no longer defend the disparate treatment of residents and non-residents. The transition moved through several phases:


  • The Supreme Administrative Court began consistently ruling in favour of taxpayers.
  • The State Budgets for 2022 and 2023 finally codified the mandatory "englobamento" for non-residents, effectively ending the 28% flat rate and adopting the 50% tax base calculation - confirmed by the Tax Authority's Circular Letter no. 20255 of 14 April 2023.


Navigating the New Regime: Mandatory Aggregation since 2023


Since January 1, 2023, non-residents are treated as residents for the purpose of capital gains calculation.


Capital gains on Portuguese real estate are now mandatorily aggregated (englobamento) with any other income declared in Portugal, with only 50% of the net gain subject to taxation. The applicable rate is determined by the progressive IRS scale, which ranges from 14.5% to 48%.


To apply these rates, non-residents must declare their worldwide income in Portugal - not for the purpose of taxing it, but to determine the correct progressive bracket.


For high-net-worth individuals with significant global income, the mandatory aggregation might result in an effective tax rate higher than the old 28%, even with the 50% exclusion. A taxpayer with substantial foreign earnings could find their Portuguese capital gain pushed into the 45% or 48% bracket. Proper fiscal planning and the rigorous presentation of deductible expenses have never been more critical.


The 2021 Refund Opportunity: A Deadline Approaching Rapidly


This is perhaps the most pressing matter for our clients. Because the legislation in place between 2020 and 2022 was deemed illegal under EU law, anyone who paid the "old" tax rate is potentially entitled to a significant refund. The mechanism is a request for ex-officio review (Revisão Oficiosa) under the General Tax Law, which must be filed within four years of the relevant tax assessment.


2020: The four-year window for 2020 assessments has already lapsed. No recovery action is possible for this year.

2021: Tax returns for 2021 were assessed in 2022. The four-year window expires on 30 June 2026. Immediate action is required.

2022: Tax returns for 2022 were assessed in 2023. More time remains, but early action is recommended to ensure proper documentation.


The 2021 deadline is the immediate priority. Any non-resident who sold property in 2021 and was taxed on 100% of the gain must initiate the legal claim process immediately. Failure to act before this deadline results in the permanent loss of the right to reclaim what is, in many cases, tens of thousands of Euros.


Optimizing the Tax Base: Beyond the 50% Exclusion


To mitigate the impact of progressive tax rates, taxpayers must leverage all legal mechanisms to reduce the taxable gain. Our firm emphasizes the importance of documenting:


  • Capital Improvements: Proven structural works and permanent fixtures added within the last 12 years.
  • Transfer Costs: Real estate brokerage fees (essential for high-value transactions) and the taxes paid during the initial acquisition (IMT and Stamp Duty).
  • Inflation Adjustment: The application of the official devaluation coefficients, which can significantly "shrink" the taxable profit in real terms.


Conclusion: Proactive Compliance


The shift in Portuguese tax law represents a double-edged sword: it provides a fairer, treaty-compliant framework, but increases the  reporting burden on the taxpayer and, for high-income individuals, may increase the effective rate.


The immediate priority for any non-resident with historical property transactions in Portugal is an audit of past tax settlements. The time for administrative silence has passed.


If you sold a property in Portugal between 2021 and 2022 and wish to audit your tax returns, or if you are planning a current transaction and require strategic tax optimization, our legal team is available to assist.

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