In a post shared on Facebook, the Tax Authority (AT) explains that it is possible to "check the amount and payment reference of the IMI on the Finance Portal".

To do this, you must follow the following steps in your Personal Area:

Situação Fiscal Integrada

IMI

Documentos de Cobrança.

Then, just select the document where you will find all the information to make the payment - Amount and respective reference.

IMI is paid in a single payment when its value is less than €100, and is split into two instalments paid in May and November when it ranges between €100 and €500. If it exceeds 500 euros, it is divided into three instalments of the same value to be paid in May, August and November.

This year, instead of May, the IMI must be paid by the end of June.