Tool
IMT and Stamp Duty Calculator 2026
Enter the property price and your buyer profile: the calculator estimates the IMT and Stamp Duty payable on purchase, using the rates in force in 2026.
Rates in force in 2026. Updated on 26 October 2026.
Drag the slider or type the amount
IMT brackets
Indicative estimate based on the 2026 rates (Law no. 73-A/2025). Excludes notary and registry fees and the annual IMI. Does not replace the official calculation by the Portuguese Tax Authority.
IMT rates in 2026 (mainland Portugal)
Source: Portuguese Tax Authority portal, article 17 of the IMT Code; Law no. 73-A/2025; Decree-Law no. 97/2026.
For non-residents buying a home, the general rule is a flat 7.5% rate, subject to exceptions in the law. Check your situation.
Questions about IMT
What is IMT?
IMT (Imposto Municipal sobre as Transmissões Onerosas de Imóveis) is a tax paid by the buyer when acquiring property. It applies to the higher of the price and the property tax value, and is paid before the deed is signed.
How much is Stamp Duty when buying a home?
Stamp Duty (Imposto do Selo) on property acquisitions is 0.8% of the property value, also paid by the buyer before the deed.
Do non-residents pay more IMT?
In 2026, the general rule for non-residents buying a home is a flat 7.5% rate (Decree-Law no. 97/2026), subject to exceptions in the law. Check your situation with an advisor before buying.
Does this calculator replace the official calculation?
No. It is an indicative estimate based on the 2026 rates. The final amount is assessed by the Tax Authority; it excludes notary and registry fees and the annual IMI.