September Tax Deadlines Approach for Property Owners, Including AIMI Payment
The Portuguese Tax and Customs Authority (AT) has confirmed the schedule for several fiscal obligations due in September, reminding companies and individuals to ensure compliance. Among the key deadlines is the payment for the Adicional ao Imposto Municipal sobre Imóveis (AIMI), a tax levied on higher-value property holdings. This tax is of particular significance to real estate owners across Portugal.
According to the official tax calendar, September is the designated month for the settlement of the AIMI. This tax applies to the sum of the Valor Patrimonial Tributário (VPT), or taxable asset value, of urban properties held by a single owner. The tax is triggered for individuals whose total property value exceeds €600,000 and for corporations, with specific rates applied depending on the valuation bracket. For married or cohabiting couples who opt for joint tax aggregation, the exemption threshold is raised to €1.2 million.
In addition to the AIMI, other tax duties scheduled for September include the declaration and payment of Imposto do Selo (Stamp Duty) related to various operations and the submission of monthly or quarterly VAT (IVA) returns for applicable businesses. The Autoridade Tributária e Aduaneira has emphasized the importance of using the official Portal das Finanças for submitting declarations and making payments, facilitating a more streamlined process for taxpayers.
A spokesperson for a leading accounting firm in Lisbon commented on the importance of the fiscal calendar. "Meeting these deadlines is fundamental for the financial health of both businesses and private citizens. The AIMI, in particular, requires careful assessment of one's property portfolio to ensure the correct amount is paid. We have observed that most property owners are diligent, but reminders are always helpful, especially for those with complex asset structures."
The government relies on the timely collection of these taxes to fund public services and maintain fiscal stability. The AIMI was introduced several years ago as a measure to increase tax revenue from the property sector, targeting the upper segment of the market. Its collection in September is a regular and anticipated event in the national fiscal cycle.
The AT provides comprehensive guides and FAQs on its website to assist taxpayers in understanding their obligations. Failure to comply with the specified deadlines can result in late payment interest and other penalties as stipulated in the general tax law. Therefore, all property owners falling within the AIMI brackets are advised to complete their payments within the month.
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