Selling a Portuguese home: when the capital-gains reinvestment exemption does not apply (2026)

On 26 August 2026 the press reported a response by the Ministério das Finanças to a parliamentary question (Pergunta n.º 2376/XVII/1.ª, 30 July 2026) from the Iniciativa Liberal parliamentary group, which had asked the Government to justify the AT's restrictive readings of the reinvestment regime and alleged "requisitos adicionais não previstos pelo legislador" (additional requirements not provided for by the legislature). The Government answered by validating the two rulings:

"As informações vinculativas emitidas pela Autoridade Tributária e Aduaneira (AT) enquadram-se no exercício das suas competências de interpretação e aplicação da lei fiscal."

The Government then made its most valuable clarification — the differentiation that English-language coverage of this story almost always flattens: the AT did not add new requirements; it applied the ones the law already contains. Quoting the Government:

"A AT encontra-se vinculada ao princípio da legalidade, devendo interpretar e aplicar as normas tributárias de acordo com os critérios de interpretação previstos, designadamente, no artigo 11.º da Lei Geral Tributária e no artigo 9.º do Código Civil, não podendo estabelecer condições ou requisitos que não resultem da lei."

In PIV proc. 25960 (despacho de 2026-07-03, Chefe de Divisão da DSIRS, por subdelegação) a taxpayer sold his HPP in 2023 (the valor de realização already reflected the repayment of the mortgage) and planned to reinvest the total capital gain in the acquisition of an urban article registered as a ruína(Tipo "Urbano / Outros (ruína)", afetação "Habitação" per the caderneta predial), with the intention of carrying out works to convert it into his HPP. Crucially, he said he would reinvest the capital gain only in the acquisition, not in the works.

The AT denied the exclusion. The arrival property must be exclusivamente destined to habitação própria e permanente; a ruin cannot be. The operative reasoning:

"atendendo a que o imóvel objeto de reinvestimento se trata de um prédio em ruínas, não terá o mesmo, por razões óbvias, a capacidade para ser considerado habitação própria e permanente e domicílio fiscal do sujeito passivo, pelo que não se poderá aceitar o seu valor de aquisição para efeitos de reinvestimento."

The AT also invoked the n.º 6 conditions — that the acquirer do not apply the property to their HPP within 12 months, and that the taxpayer do not establish their domicílio fiscal there — as further absence of the conditions. The net effect: the gain on the sold HPP remained subject to general IRS taxation.

In PIV proc. 30465(despacho de 2026-05-11, Chefe de Divisão da DSIRS, por subdelegação) a retiree who kept working as a lawyer had, since 2019, used a fraction both in the exercise of the legal profession and as his domicílio fiscal. The fraction was registered with a "serviços" use; in 2026 he changed it to "habitação" in the Conservatória do Registo Predial, though the AT had not yet recorded the change despite his filing a modelo n.º 1 do IMI.

The AT answered the question posed (whether the 12-month residence condition under n.º 5 alínea e) was met, given the domicílio fiscal had been there since 2019) by setting out what residência permanente means — the place where domestic life is centred, with stability and durability:

"Entende-se que o conceito de residência permanente corresponde ao local onde se tem centrada a vida doméstica com estabilidade e por forma duradoura, o local onde se pernoita, se tomam as refeições, se recebem familiares e amigos, onde, em suma, se tem constituído o lar como todo o ritual e laços que lhe estão associados e lhe são próprios."

The decisive reasoning was the "exclusivamente" word. Because a part of the property was used for the law practice, the property was not exclusively an HPP:

"estando uma parte do imóvel afeto ao exercício da atividade de advogado, significa que o imóvel em causa não está exclusivamente afeto à sua habitação própria e permanente, em virtude de existir uma afetação, embora parcial, à referida atividade."

The conclusion: since a statutory precondition is not met, the taxpayer loses the right to the exclusion and the gain is taxed under the general IRS rules. Note the steady point: the residence period itself was not the problem — the mixed use was.

This is the single most important correction. Coverage that frames the story as "Portugal's new capital-gains rule" or as a new limitation taking effect on a new date is wrong. The two informações vinculativas and the Ministério esclarecimento are interpretation instruments, not legislation. They create no new legal requirement and no new effective date:

"as informações vinculativas em causa foram emitidas tendo por base os factos concretamente apresentados pelos requerentes e à luz do disposto nos n.os 5 e 6 do artigo 10.º do Código do IRS, delas não resultando, nem podendo resultar, a criação de novos requisitos legais, correspondendo apenas à interpretação e aplicação pela AT das condições e pressupostos legalmente definidos para a aplicação do regime de exclusão de tributação das mais-valias por reinvestimento, às situações factuais que foram concretamente sujeitas à apreciação da AT."

It is equally wrong to claim the statute never changed. Article 10.º, n.º 5 and 6 were amended — but by diplomas that predate these two rulings and are not introduced by them:

• DL n.º 57/2024, de 10 de setembro — amended n.º 5 alínea e), shortening the prior-residence period from 24 to 12 months and adding the n.º 23 exceptional-circumstances qualifier; also revoked alíneas d) and f).
• Lei n.º 56/2023, de 6 de outubro — added n.º 6 alínea e) (domicílio fiscal condition).
• Lei n.º 71/2018, de 31 de dezembro — added n.º 6 alínea d) (public non-refundable support resale condition).

(Adjacent but not relevant to these PIVs: DL n.º 97/2026, de 20 de maio, added n.º 7–9 for the arrendamento variant, applying to transfers between 01-01-2026 and 31-12-2029.)

Why do the two PIVs quote different texts of alínea e)? PIV 25960 applied the wording in force at its taxable event (16 October 2023), when alínea e) read "24 meses anteriores"; PIV 30465 quotes the current wording (12 months). Same paragraph at two points in time — not two different rules.

An informação vinculativa binds the AT for the taxpayer who asked for it — it does not create a generic guideline. The Ministry made this explicit: such rulings are limited to the concrete factual situations described by the applicants, and the AT is barred from acting otherwise than as stated, save in compliance with a judicial decision.

Because of that, a finding like "a ruin is not eligible" or "part-work use breaks the exclusion" cannot be read as a blanket rule. The qualification in each case turned on the taxpayer's specificfacts — reinvesting "apenas na sua aquisição" (only in the purchase, not the works) in the ruin case, and a home partly used for a profession in the lawyer case. The Ministry said so verbatim:

"não podendo a qualificação jurídico-tributária feita pela AT nestes dois casos concretos ser imediata e automaticamente extrapolada para outras situações concretas distintas."

The Ministry also signalled that any future change is a matter for the legislator, not for the AT — any modification should come from identifying concrete needs to clarify or perfect the regime, in strict observance of the law passed by the Assembleia da República.

Anyone selling a Portuguese property as their (exclusive) habitação própria e permanente and planning to reinvest the gain. The decisive conditions are: exclusivamente HPP on the way out, and exclusivamente HPP destination on the way in (whether through acquisition, land-for-construction, or works), within the statutory reinvestment window, and with the gain properly declared.

This is not a new rule aimed at foreign buyers. The exclusion and its limits are long-standing features of the CIRS (an EU/EEA property can qualify where there is the relevant exchange of information), and the 2026 story is about two AT readings being upheld — not about a restriction targeted at non-residents or new foreign owners.

The segments where the two rulings bite: buyers planning to acquire a ruínain the countryside and rebuild (the ruin case), and owners who run a business or profession from home — including home offices, B&B, or any mixed use — where that use is not exclusively their residence (the lawyer case). Be warned: a mixed-use home that is also your domicílio fiscal is a trap precisely because it can satisfy alínea e) on residence while still failing the exclusivamente condition.

Ruin buyers, two traps: a ruína also attracts a separate surcharge on the municipal property tax (IMI) for vacant, unfinished or dilapidated buildings in force in recent years — so a ruin can be a fiscal problem on both the IRS reinvestment side (this page) and the IMI side, independently of anything the Government said on 26 August 2026.

If you are planning to reinvest a gain in a ruin or a building plot: do not assume the reinvestment exclusion applies. If the property you buy cannot, at acquisition, be your exclusive HPP — a ruin is the clear case — the exclusion is at risk. Plan the purchase and the works as a single qualifying reinvestment, and confirm the position with an Ordem dos Advogados lawyer or registered accountant before you commit.

If part of your home is used for a profession or a business: review whether the "exclusivamente" condition genuinely holds on the way out and on the way in. Even a partial, unlisted use can defeat the exclusion, and a home that is also your domicílio fiscal is not automatically safe. Mixed-use sellers should get a written view from a tax professional before transacting.

What has NOT changed:the reinvestment exclusion itself and its rate — no figure, threshold or window was altered by these rulings. Treat any headline claiming a "new" capital-gains rule with caution; the honest framing is that the AT applied existing law to two specific cases and the Government confirmed it had the authority to do so.

This page is orientation only under the general law; it is not a substitute for advice on your specific facts. Neither ruling is generalisable to your case — which is exactly why you should get advice rather than extrapolate from them.