Chapter III · Property registers

Article 13-A Property register information

Artigo 13.º-A · Informação matricial

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. Information on property recorded in the property register in the name of taxpayers is made available on the Tax Portal (Portal das Finanças).

1 - É disponibilizada no Portal das Finanças a informação relativa aos prédios averbados na matriz predial em nome dos sujeitos passivos.

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2. Where the property register does not reflect the ownership of property forming part of the community property of married taxpayers, they must notify, by 15 February, the identification of the property held in common.

2 - Quando a matriz não reflita a titularidade dos prédios que integram a comunhão de bens dos sujeitos passivos casados, estes devem comunicar, até 15 de fevereiro, a identificação dos prédios que são comuns.

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3. On the basis of the information notified under the preceding paragraph, the Tax and Customs Authority updates the property register with effect from 1 January of that year.

3 - Com base na informação comunicada nos termos do número anterior, a Autoridade Tributária e Aduaneira procede à atualização matricial, com efeitos a 1 de janeiro desse ano.

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4. If the taxpayers do not make the notification under paragraph 2, the assessment for that year is based on the information contained in the property register.

4 - Caso os sujeitos passivos não efetuem a comunicação nos termos do n.º 2, a liquidação respeitante a esse ano terá por base a informação constante da matriz.

What we checked in this article

Check the 15 February deadline for married taxpayers to identify community property, the update with effect from 1 January, and the default to the register information for the assessment.

Own property in Portugal? Article 13-A 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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