IMT: The Property Transfer Tax You Pay When Buying in Portugal

• IMT is a one-off tax the buyer pays on any onerous transfer of Portuguese property, settled before the deed (escritura) is signed.
• The taxable base is always the higher of the price you agreed and the property's VPT (taxable patrimonial value).
• Urban homes use progressive brackets with a marginal rate and a deduction; other property types (rustic land, commercial, land for construction) pay a flat rate instead.
• First-time buyers under 35 can get a full or partial IMT exemption on their own permanent home — worth checking before you sign anything.

IMT (Imposto Municipal sobre Transmissões Onerosas de Imóveis) is Portugal's municipal property transfer tax. It applies whenever real estate — or certain rights over it — changes hands for value: not just a straightforward purchase, but also long leases over 30 years, promissory contracts once possession is handed over, and several other transfers the law treats as equivalent to a sale. Unlike IMI, which the owner pays every year just for holding the property, IMT is paid once, by the buyer, at the point of acquisition.

What triggers it

The tax is due on the buyer, not the seller. Most people meet it exactly once, when they sign a promissory contract with the transfer of possession or the final deed for a home, but the same rule catches property bought through company shares in some cases, exchanges of property, and certain long-term leases — anywhere Portuguese law treats the transaction as functionally equivalent to buying the property outright.

How the taxable base is set: price or VPT, whichever is higher

IMT isn't calculated on whatever number you and the seller agree to write in the deed. The law requires the taxable base to be the higher of two figures: the price stated in the contract, or the property's VPT (valor patrimonial tributário) — the value the Autoridade Tributária has on file for that property, based on its own formula involving construction cost, location, age, and quality coefficients. If the VPT comes in above the agreed price — which happens more often than buyers expect, especially for older properties or ones in areas where the market has moved fast — IMT is charged on the VPT instead. It's worth requesting a VPT check before you sign, since there's no way to negotiate this base down afterward.

Progressive brackets for a permanent home

For an urban property (or an autonomous fraction of one) bought exclusively as your own permanent residence, IMT is calculated on a system of progressive brackets, similar in mechanism to IRS: the taxable base is sliced into bands, each band's portion is taxed at a rising marginal rate, and then a fixed deduction (parcela a abater) is subtracted from the total so you don't have to calculate each slice separately — you apply the marginal rate for the band your value falls into, then subtract the deduction that band publishes. Below a first threshold, the rate is 0%; above the top brackets, two flat rates apply instead of a marginal calculation. A separate, slightly steeper table applies if the home won't be your permanent residence (a second home, or a rental).

The exact euro cutoffs for each bracket are set by the State Budget and adjusted most years — in the 2025 table, for instance, the 0% band ran up to roughly €104,000 for a permanent home, with marginal rates climbing through 2%, 5%, 7% and 8% before two flat rates (6% and 7.5%) took over above roughly €1.13 million. Don't treat these figures as fixed: confirm the current bracket table on the Portal das Finanças or with our IMT calculator before you compute anything you're relying on.

Flat rates for everything else

• Rustic land (prédios rústicos): a flat 5% on the taxable base.
• Other urban property — commercial premises, offices, land for construction, and any urban acquisition that isn't a home purchase: a flat 6.5%.
• A buyer with tax domicile in a jurisdiction on Portugal's blacklist pays a flat 10%, with no exemptions or reductions available.

When and how you pay

IMT has to be settled before the transfer takes place — before the deed, and even before a promissory contract if that contract hands over possession early. In practice, you (or your lawyer) file the Modelo 1 do IMT declaration through the Portal das Finanças, the system calculates the amount due and issues a payment reference (DUC), and you pay it at a bank, ATM, or online before the appointment with the notary. The notary won't proceed with the deed without proof that IMT — and the related Imposto do Selo of 0.8% on the same base — has been paid or that a valid exemption has been recognised in advance.

Exemptions worth checking before you sign

• Low-value permanent home: if a property bought exclusively as your own permanent residence falls at or under the top of the first bracket, it's exempt from IMT outright — no application needed beyond declaring the exemption on the same Modelo 1 form.
• IMT Jovem (under-35 first home): introduced in August 2024, this gives buyers aged 35 or under, buying their first home for their own permanent residence, a full IMT exemption up to a set value threshold, and partial relief on a further band above it — above that, no relief applies. All co-buyers on the deed need to meet the age and first-home conditions.
• Urban rehabilitation: the first onerous transfer of a property after certified rehabilitation works in a designated urban rehabilitation area (ARU) can qualify for a full IMT exemption.
• A handful of narrower reliefs exist too — for credit institutions taking property in lieu of debt repayment, for property bought for resale by real-estate trading companies, and for a few public-interest buyers — but these rarely apply to an ordinary home purchase.

None of these exemptions are automatic beyond the low-value and IMT Jovem cases noted above (which still require you to declare them at the time of filing) — confirm eligibility and the current thresholds before you rely on one to close a deal.