Portugal Property Tax 2026: IMT and Stamp Duty Explained for Foreign Buyers

What IMT and Stamp Duty are

IMT (Imposto Municipal sobre Transmissões Onerosas de Imóveis, the Property Transfer Tax) and Stamp Duty (Imposto de Selo, IS) are the two taxes the buyer pays to the Portuguese State when acquiring property. Both must be paid before the public deed (escritura): without proof of payment, the Notary Office or Casa Pronta will not complete the transaction. For sellers they are informational; for buyers they amount to 5 % to 10 % of the transaction value depending on property type and tax framework ^[1].

IMT applies to onerous transmissions (sale and purchase, exchange, payment in kind). It is a progressive tax with rates depending on acquisition value, purpose (primary residence, HPP, vs secondary residence or investment), and region (mainland, Azores and Madeira have different brackets). Stamp Duty on the transmission is a flat 0.8 % on the higher of the acquisition price or the Tax Patrimonial Value (VPT) of the property ^[2].

IMT 2026 brackets: updated tables

The 2026 IMT brackets were updated +2 % from 2025 levels through Official Circular 40129/2026 from the Portuguese Tax Authority ^[3]. The marginal rate applies per bracket (progressive system, not flat), which means the effective IMT is always lower than the nominal top-bracket rate.

The five IMT regimes at a glance

IMT is progressive by bracket and differentiated by purpose. Five main regimes on the Portuguese mainland in 2026, with exemptions, marginal rates and the top-bracket boundary:

The Investment regime applies to any acquisition not intended as primary residence: holiday home, residential rental, second home. The difference between HPP and Investment on €300,000 can reach €5,000-€6,000 in additional IMT. Other non-residential urban properties (commercial, services) follow the 6.5 % rate.

Combining HPP with IMT Jovem on a first acquisition up to €330,539 means zero IMT. This is the main lever for buyers aged 35 or under ^[3].

IMT Jovem: young-buyer exemption up to €330,539

IMT Jovem is an exemption regime introduced to support first-time primary-residence acquisition by young buyers. In 2026, IMT is fully exempt up to €330,539 for those meeting the cumulative requirements defined in the CIMT and the current State Budget Law ^[4]. Above that value, the standard HPP brackets apply to the excess.

Requirements for IMT Jovem

1. Buyer up to 35 years old at the time of the deed.
2. Not owning another primary-residence property at the time of acquisition (nor having owned one in the previous 3 years).
3. Property acquired as primary residence, declared in the deed.
4. Keep as primary residence for at least 6 consecutive years (otherwise, IMT becomes retroactively due plus interest).

Stamp Duty for young buyers follows an analogous regime, with exemption aligned with IMT Jovem under standard conditions. Always confirm application in the deed. The most common mistake is the buyer forgetting to claim the exemption and only discovering it when receiving the AT additional assessment.

Stamp Duty: 0.8 % on the higher value

Stamp Duty on the transmission of property is 0.8 % on the higher of the recorded price and the Tax Patrimonial Value (VPT) of the property ^[2]. For most urban transactions the price exceeds the VPT, but in zones where the VPT is overvalued (common in renovated buildings without registry updates) the Stamp Duty can be higher than expected.

Young-buyer Stamp Duty exempts IS up to the same IMT Jovem threshold (€330,539) when the same requirements apply. Above the limit, IS is calculated on the excess.

Who pays, when to pay

The buyer is the tax subject for both taxes. Payment is made before the public deed: the Notary Office or Casa Pronta requires the receipts. The assessment is requested on the Portal das Finanças (Form 1 of IMT) and payment can be made via Multibanco reference, direct debit or at the counter.

1. Gather documents (urban property tax record, permanent land registry certificate, promissory contract if already signed).
2. Submit IMT Form 1 on the Portal das Finanças.
3. AT issues assessment within minutes, with a payment reference.
4. Pay IMT + IS before the deed.
5. Present receipts at the Notary Office or Casa Pronta.
6. Deed is completed; AT registers the transmission.

Three worked examples

Three common scenarios side by side, with IMT and Stamp Duty under the 2026 mainland regime:

Case 1, in detail. 32-year-old buyer with no prior primary-residence property. €200,000 is below the IMT Jovem threshold (€330,539), so full exemption from IMT and young-buyer Stamp Duty applies. Without the Jovem regime this buyer would pay ~€1,800 of IMT under standard HPP (exempt up to €106,346, marginal rate above).

Case 2, in detail. Investor acquires for rental. No initial exemption. The effective rate in the investment bracket sits at 5.5 %-6.5 % for €450,000 ^[3]. IMT ~€27,000-29,000 (midpoint €28,000). Stamp Duty 0.8 % on €450,000 = €3,600. Total ~€31,600 = ~7.0 % of price — a material drag on gross rental yield.

Case 3, in detail. HPP in Lisbon for €1.2M. The price exceeds €1,102,920, so 6 % flat applies to the entire amount (hybrid regime). IMT €72,000, Stamp Duty €9,600. Total €81,600 = 6.8 % of price. The 42-year-old buyer is not eligible for IMT Jovem.

IMT for non-residents

Non-residents in Portugal pay IMT and IS exactly the same as residents. There is no differentiated tax regime for the acquisition. The administrative process, however, requires a Portuguese tax number (NIF) before submitting Form 1 and, for non-EU non-residents, the designation of a fiscal representative. These are administrative prerequisites worth resolving before signing the promissory contract to avoid delaying the deed ^[5].

For the complete framework applicable to foreign buyers, see the Lisbon guide and the Cascais guide, which cover NIF, bank account, fiscal representation and deed process from the international perspective. Anyone moving fiscal residence to Portugal should also read our IFICI vs NHR comparison: NHR closed to new applicants in 2024 and IFICI is a narrower regime that does not cover pensioners.

Refunds, restitutions and appeals

If you discover after the deed that you overpaid IMT (due to HPP/investment classification error, forgetting IMT Jovem exemption, or assessment error) you have the right to request restitution on the Portal das Finanças. The general deadline is 4 years from the assessment date. The graceful claim (reclamação graciosa) is free; hierarchical appeal only makes sense if the claim is denied.

• Graceful claim: addressed to the Director of Property Services at AT, no cost.
• Hierarchical appeal: addressed to the Minister of Finance, after the graceful claim is denied.
• Judicial action: tax court, weigh costs against the amount claimed.
• If refund is approved, AT credits via bank transfer within the legal deadline.

Other situations: inheritance, swaps and urban rehabilitation

IMT only covers onerous transmissions (sales, swaps, dations in payment). Three common situations have different rules and deserve attention: transmissions by death, property swaps, and acquisitions in urban rehabilitation zones.

Inheritance and mortis causa transmission

Property transmission by death (inheritance or legacy) is not subject to IMT, but to Stamp Duty at 10 % on the Taxable Asset Value (VPT). There is no sale price. Legal exemptions apply between spouses, direct descendants (children, grandchildren) and ascendants (parents, grandparents), so the overwhelming majority of direct family inheritances pay no Stamp Duty. Inheritances to siblings, cousins or third parties pay the 10 % in full. For any subsequent sale, the heir's acquisition value is the VPT at the date of inheritance.

Property swaps

A swap (permuta) is the exchange of one property for another, with or without cash compensation (tornas). IMT applies to the value differential (where it exists) and to the higher of the taxable values of the two properties swapped. It does not double across both ^[1]. Common practical use: downsizing a large family home for a smaller flat with cash compensation. A well-structured swap can reduce total IMT versus two parallel sales. Worth simulating beforehand.

Urban rehabilitation zones (ARU): exemptions and reductions

Properties in Urban Rehabilitation Areas (ARU) and other classified zones benefit from a favourable tax regime: IMT exemption on first acquisition for primary residence of a rehabilitated ARU property, three-year IMI exemption (extendable by five more years), and IRS benefits for the renovation promoter. The regime requires a rehabilitation certificate from the municipality and compliance with renovation criteria (typical minimum of 25 % of VPT invested, with a minimum post-renovation energy rating) ^[6]. For buyers in the historic centres of Lisbon, Porto, Coimbra, Braga or Évora, always check whether the property has an active rehabilitation certificate. It can eliminate IMT entirely.

Common mistakes that cost money

1. Declaring HPP in the deed without meeting the actual requirements (not occupying as primary residence in the first 6 months, for example). IMT becomes retroactively due plus interest.
2. Not claiming IMT Jovem when eligible. Paying full IMT through unawareness of the regime.
3. Calculating on the price when the VPT is higher (IS applies to the higher value).
4. Waiting for the AT assessment last-minute. Delays in Form 1 can cause loss of the notary slot.
5. Not simulating HPP vs investment scenarios before the promissory contract. Only discovering at the deed that the tax changes the economic viability.
6. Forgetting that IMT Jovem requires keeping as primary residence for 6 consecutive years. Early sale implies refund of the exempted tax.

Before the promissory contract: three steps to lower IMT and IS

Before signing the promissory contract, calculate IMT and IS in the official AT simulator and confirm with your lawyer or accountant whether the HPP, IMT Jovem or other exemptions apply to your case. The difference between regimes can be worth thousands of euros. Well worth the consultation hour. If the sale involves capital gains on the seller side, complement with the capital gains HPP guide for 2026, which covers the reverse of the operation.

This article was written with AI assistance and reviewed editorially by The Agent Trust. All cited sources are official and verifiable in the links above.