Chapter XVI · Miscellaneous provisions

Article 140 Safeguard regime for urban property

Artigo 140.º · Regime de salvaguarda de prédios urbanos

Código do Imposto Municipal sobre Imóveis · annex I to Decree-Law No. 287/2003 · consolidated text checked 26 October 2026

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1. In respect of urban properties or parts of urban properties that are the taxpayer’s own permanent residence, the IMI tax charge for each year may not exceed the IMI tax charge due for the immediately preceding year plus, in each of those years, the greater of the following amounts:

1 - Em relação aos prédios ou parte de prédios urbanos que sejam habitação própria e permanente do sujeito passivo, a coleta do IMI respeitante a cada ano não pode exceder a coleta do IMI devida no ano imediatamente anterior adicionada, em cada um desses anos, do maior dos seguintes valores:

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a) EUR 75; or

a) (euro) 75; ou

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b) One third of the difference between the IMI resulting from the taxable property value set in the current valuation and the IMI that would result from the previous valuation, irrespective of any applicable exemptions.

b) Um terço da diferença entre o IMI resultante do valor patrimonial tributário fixado na avaliação atual e o que resultaria da avaliação anterior, independentemente de eventuais isenções aplicáveis.

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2. The preceding paragraph does not apply to properties for which there is a change of IMI taxpayer in the year to which the tax relates, except in gratuitous transfers whose beneficiaries are the spouse, descendants or ascendants.

2 - O disposto no número anterior não é aplicável aos prédios em que se verifique uma alteração do sujeito passivo do IMI no ano a que respeita o imposto, salvo nas transmissões gratuitas de que forem beneficiários o cônjuge, descendentes e ascendentes.

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3. An increase in the IMI tax charge caused by an increase in taxable value not resulting from mere updating under Article 138 does not apply, irrespective of the value of the property, to taxpayers who meet the legal conditions for the IMI exemption and are over 65 years of age.

3 - O aumento da coleta de IMI determinado por aumento de valor tributável não resultante de mera atualização nos termos do artigo 138.º não é aplicável, independentemente do valor do imóvel, a sujeitos passivos que reúnam as condições legais para a isenção de IMI e tenham mais de 65 anos.

What we checked in this article

The cap on the annual increase in the IMI tax charge for own permanent residences (the greater of EUR 75 or one third of the difference), the exception for changes of taxpayer other than gratuitous transfers to spouse, descendants and ascendants, and the over-65 exemption-eligible rule are retained.

Own property in Portugal? Article 140 sets the yearly bill.

We check property valuations and IMI and AIMI assessments, apply for exemptions, handle complaints against valuations and plan ownership through individuals or companies, in English. A written answer and a fixed quote within one working day.

Unofficial English translation prepared by BCA Portugal for reference. Only the Portuguese text published in the Diário da República has legal force. Editorial notes are ours and are not part of the statute.

Applying the law

Annual property tax in Portugal, checked and kept low

IMI depends on the taxable value the tax office assigns and on the municipality; AIMI depends on who owns what. Send us the property records and we will check the valuation, the exemptions and the ownership structure.

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