Property purchase declaration to the tax authority

You are buying a house and preparing the declaration used to assess the acquisition tax.

IMT Form 1 — Declaration for assessment of Imposto Municipal sobre as Transmissões Onerosas de Imóveis. For property acquisitions for consideration; this is not a form from the transport authority Instituto da Mobilidade e dos Transportes. Includes the blank original, instructions and Annexes I (additional parties), II (additional property) and III (additional facts, amounts, shares, charges or reliefs). Submit through Portal das Finanças, e-balcão or in person by appointment. Older instructions do not establish current rates or reliefs. The service does not calculate tax or submit the declaration.

We help you get the right form, explain what it is for and guide you through completing it. You receive the blank PDF after paying for the service, without needing to log in to the authority’s portal. Include it with other documents in the same individual request and payment.

This is a blank form, not a certificate or a document issued in your name. The person or organisation specified on the form is responsible for completing and signing it; we do not submit applications, book appointments or guarantee approval. The PedirDocumentos fee covers obtaining and organising the form, explaining its purpose and guidance on completing it. Check the applicable version and requirements with the authority.