When the annual Municipal Property Tax (IMI) exceeds 100 euros, the final installment is always due by November 30—this year until December 2, as noted in a post by the Tax Authority (AT) on Instagram.
“The last installment of the IMI is payable until December 2. To pay through the Finance Portal, follow these steps: Log in > My area > Payments > Pending payments,” reads the Fisco’s post.
However, “if the taxpayer opted, in any previous billing, for the full payment of the entire tax, there is nothing further to do in November. In such cases, the notice for the last installment is canceled on the Finance Portal,” explains DECO PROteste.
Those with properties in their name (houses, garages, shops, among others) are required to pay the annual Municipal Property Tax (IMI) to the Tax and Customs Authority (AT). November marks the month to pay one installment. Learn all details.
Is it worthwhile to request a new house assessment from the Finance?
The consumer protection organization reminds that the “calculation of IMI results from applying a rate to the taxable property value (VPT)“, with “rates defined annually by municipalities and the collection of IMI also benefits the municipalities where the properties are located.”
“Recent years have not seen increases in IMI rates. Many have even decreased. Nevertheless, in 2024, nine national municipalities raised IMI receipts, including Loulé, Seia, Maia, and Loures,” states the DECO PROteste website.
“Not all coefficients influencing the IMI calculation are updated by the Tax Authority. This includes the property age (depreciation coefficient), which is only updated if the owner requests a new assessment from the Finance,” it adds.
“This means that many properties may be taxed as new when they are not, potentially allowing for a reduced tax value. A house purchased new three years ago, without subsequent valuaftion, would likely maintain a VPT calculated with a depreciation coefficient of 1. However, if the owner requests a new assessment, they may benefit from a reduction to 0.9, as the house would be over two years old, affecting the final calculations. Still, only a simulation can confirm whether it’s worth it,” advises DECO PROteste.
It’s best to simulate before requesting a new assessment
According to the organization, “if a taxpayer requests a new house assessment, the Finance will update all coefficients affecting the IMI calculation. In the past two years, the price per square meter has significantly increased, possibly increasing the tax payable.”
“To ensure you can save by requesting a new house assessment from the Finance, simulate how your property’s tax would look using the DECO PROteste IMI simulator. If the simulation suggests potential savings, submit the IMI form 1 on the Finance Portal by December 31. The new calculation will affect next year’s IMI,” the organization’s website advises.
The DECO PROteste simulator is available here.
