What is IMI (Imposto Municipal sobre Imóveis)?

Portugal's annual municipal property tax — calculated on the Valor Patrimonial Tributário (VPT) assessed value of all property owned in Portugal.

Key Facts — IMI (Imposto Municipal sobre Imóveis)

IMI — Imposto Municipal sobre Imóveis — is Portugal's annual property tax, equivalent to Spain's IBI or the UK's council tax. It is a local tax administered by the Autoridade Tributária e Aduaneira (AT) and collected by each município. Every owner of Portuguese real estate — resident or non-resident, Portuguese or foreign — pays IMI on each property they own as at 31 December of the tax year.

IMI is calculated as a percentage of the property's Valor Patrimonial Tributário (VPT) — the fiscal assessed value of the property recorded in the Caderneta Predial. The VPT is determined by the AT using a formula that considers factors including the property's usable area, location, age, and quality. The VPT is typically lower than the market value. Municipalities set IMI rates within national bands: urban property (prédio urbano) is taxed at 0.3%–0.45%, while rural property (prédio rústico) is taxed at 0.8%. Lisbon currently charges 0.3%; Porto charges 0.33%.

IMI is billed by the AT and paid in instalments. For annual IMI bills up to €500, one payment is due in April. For bills between €500 and €1,000, two payments are due (April and November). For bills above €1,000, three payments are due (April, July, November). Taxpayers can pay via the AT Portal das Finanças, Multibanco ATM, online banking, or at a post office (CTT).

Certain exemptions and reductions apply. The most significant for expats is the permanent exemption for habitual residence (habitação própria e permanente): properties used as the owner's primary Portuguese residence with a VPT up to €125,000 may qualify for a permanent IMI exemption, provided the owner's annual household income does not exceed €153,300. There is also a temporary 3-year IMI exemption for new first-time buyer properties with VPT up to €125,000.

Non-residents are generally not eligible for the habitual residence exemption. For investment properties or holiday homes, IMI is a recurring annual cost that should be factored into your property investment analysis. Some municipalities apply a surcharge (coeficiente de localização) for central urban areas, increasing the effective VPT and therefore the IMI liability. Always verify the exact IMI amount by requesting the Caderneta Predial and checking the current municipal rate before completing a purchase.

Common Mistake: Non-resident buyers sometimes forget to factor in IMI as a recurring annual cost when modelling a Portuguese property investment. On a coastal Algarve villa with a VPT of €300,000 at a 0.4% rate, the annual IMI is €1,200. Verify the current VPT from the Caderneta Predial before purchase, not the market price, as VPT can differ significantly.
Expert Tip: You can view the IMI history for a property you own or are considering purchasing via the Portal das Finanças using the property's article number from the Caderneta Predial. This shows the VPT used and the IMI charged in previous years — useful verification before purchase and helpful if you wish to appeal the VPT.
Related terms: NIF IMT CPCV

Frequently Asked Questions

How is IMI calculated in Portugal?

IMI = VPT (Valor Patrimonial Tributário) × municipal rate. The VPT is the fiscal assessed value, typically lower than market value. The municipal rate is set by each câmara municipal within national bands (0.3%–0.45% for urban property). Your annual IMI bill is available via the Portal das Finanças once you have a NIF.

When is IMI due in Portugal?

For IMI bills up to €500: one payment in April. For bills €500–€1,000: two payments (April and November). For bills over €1,000: three payments (April, July, and November). You can set up a direct debit via the Portal das Finanças to avoid missed payments.

Can I get an IMI exemption in Portugal?

Yes, if the property is your permanent primary residence in Portugal and has a VPT ≤ €125,000, and your household income is ≤ €153,300, you may qualify for a permanent IMI exemption. There is also a temporary 3-year exemption for first-time buyers. Non-residents and holiday home owners are generally not eligible for these exemptions.

→ Read our full guide: Guide To Lawyers In Portugal

AK
AvökatFinder Editorial Team Legal glossary editors — expat legal terms across 37 European countries

This glossary entry is produced by the AvökatFinder editorial team and reviewed for accuracy. It is for informational purposes only and does not constitute legal advice. Always consult a qualified lawyer in Portugal for advice specific to your situation.

Need a Lawyer in Portugal?

Browse our verified directory of English-speaking law firms across Portugal. All listed firms offer English-language legal services to expats and foreign nationals.

Find My Lawyer in 60 Seconds