AIMI 2025: What’s changing in the additional municipal property tax
In 2025, the structure of the Additional Municipal Property Tax (AIMI) underwent significant changes, directly impacting the tax burden associated with the ownership of high-value real estate assets.
The new framework aims to adjust the tax’s progressivity, reinforcing fairness and ensuring a proportional contribution from individuals and entities with more substantial wealth.
These changes are part of a broader effort by the Portuguese Tax Authority to modernize property taxation, enhance tax equity, and strengthen measures against tax evasion. For taxpayers, this means increased attention to asset monitoring and the need to regularly update tax strategies.
Key updates introduced include:
- Adjustment of tax brackets, with a marginal rate of 1% applied to real estate assets up to €2 million, and 1.5% for values exceeding that threshold. Calculations may be made individually or jointly for married couples;
- Maintenance of the assessment and payment schedule, with tax assessed in June and payable in September, as per previous fiscal guidelines;
- Possibility to deduct AIMI from personal (IRS) or corporate (IRC) income tax, provided the property generates income. This deduction is limited to the amount of income earned;
- Clarification of exemptions and special regimes applicable to properties used in business activities, now more clearly defined and transparent under the Tax Authority’s official guidance.
These changes highlight the importance of continuous monitoring of tax obligations and the evaluation of strategies to minimize the impact of AIMI, both for individuals and companies.
We support our clients in the strategic analysis of AIMI’s fiscal impact, focusing on:
- Detailed analysis of asset structure;
- Evaluation of legal alternatives for tax optimization;
- Assistance in managing filing obligations and deadlines;
- Clear interpretation of the Tax Authority’s new rules.
At Pontes, Baptista & Associados (PBA), we closely monitor legislative changes and help our clients navigate the fiscal impact of AIMI through solutions that combine legal compliance with efficient asset management.
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