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IMI Tax Calculator 2026: How Much Will You Pay in Portugal?
Property Tax Rates • Exemptions • AIMI Explained
Last Updated: January 7, 2026 | By: Immo Lusitania
When you are buying property in Portugal, the purchase price is only part of the equation. The most important recurring cost is IMI (Imposto Municipal sobre Imóveis) — Portugal’s annual property tax.
Compared to countries like the US (where property tax can reach 2–3%), Portugal offers significantly lower rates. However, the system includes hidden layers such as AIMI (wealth tax) and valuable exemptions that many international buyers overlook.
Before making an offer, always calculate your IMI. At Immo Lusitania, we do this for every client to avoid surprises.
1. How IMI Is Calculated (The Formula)
Unlike many countries, IMI is not based on what you paid — it is based on the VPT (Valor Patrimonial Tributário), the government’s tax valuation.
- Market Price: €500,000
- Typical VPT: €350,000 (approx. 70%)
Formula:
Annual IMI = VPT × Municipal Rate
2. IMI Rates in Portugal (2026)
- Urban Properties (Villas/Apartments): 0.3% – 0.45%
- Rustic Land: 0.8%
Example Calculation (Lagos Apartment)
- Purchase Price: €400,000
- VPT: €280,000
- IMI Rate: 0.3%
Annual IMI: €840
3. IMI Exemption (3-Year Tax-Free Period)
If you purchase a property as your primary residence, you may qualify for a 3-year IMI exemption.
- VPT must be under €125,000
- Household income under €153,300
This is particularly relevant for:
- Renovation projects
- Smaller apartments
- Entry-level investments
4. AIMI – The “Luxury Property Tax”
For higher-value portfolios, Portugal applies AIMI (Adicional IMI).
- Applies above €600,000 (individual)
- €1.2M for married couples
- Rate: 0.7%
If you buy through a company, AIMI rules change — often making ownership more expensive. Always structure correctly.
5. When Do You Pay IMI?
- Under €100 → 1 payment (May)
- €100–€500 → 2 payments (May, November)
- Over €500 → 3 payments (May, August, November)
IMI is paid the year after purchase.
6. How to Reduce Your IMI
- Request a VPT re-evaluation
- Check eligibility for exemptions
- Choose correct ownership structure
- Work with an experienced buyer’s broker
🚀 Planning Your Move with Confidence
👉 Start with our Portugal Buyers Guide to understand all costs including IMT, Stamp Duty, and IMI.
👉 Use our IMI Tax Calculator to estimate your annual property tax instantly.
📩 Get Your Personal IMI Simulation
Send us a property listing and we will calculate your full running costs.
❓ Frequently Asked Questions
What is IMI in Portugal?
IMI is an annual municipal property tax based on the VPT value of your property.
How much is IMI in Portugal?
Typically between 0.3% and 0.45% for urban properties.
Can foreigners buy property and pay IMI?
Yes, foreigners pay the same IMI rates as Portuguese residents.
Is there a property tax exemption?
Yes, up to 3 years for primary residence under certain conditions.
What is AIMI?
AIMI is an additional tax for high-value properties above €600,000.
