If you are planning to buy a property in Portugal, one of the taxes you will almost certainly need to pay is IMT (Municipal Property Transfer Tax).

Understanding what IMT is, how it is calculated, and when it must be paid is essential for budgeting the total cost of purchasing a property.

In this guide, we explain everything you need to know about IMT in Portugal.

IMT: When is Municipal Property Transfer tax payable?

IMT (Imposto Municipal sobre as Transmissões Onerosas de Imóveis) is a tax charged on the transfer of ownership (or certain other rights) over real estate located in Portugal when the transfer takes place for consideration.

In practice, IMT is generally payable whenever a property is bought or otherwise transferred in exchange for payment.

For most buyers, IMT represents one of the largest upfront costs associated with purchasing a home.

How is IMT calculated?

There is no fixed IMT amount.

The tax payable depends on several factors, including:

• the property’s purchase price; 
• the property’s Taxable Asset Value (Valor Patrimonial Tributário – VPT); 
• the intended use of the property; 
• the type of property being acquired. 

The tax is calculated using the following formula:

IMT = Higher of the Purchase Price or Taxable Asset Value (VPT) × Applicable Tax Rate − Deductible Amount

The applicable tax rate and deductible amount are determined according to the official IMT tables published each year by the Portuguese Government.

When is IMT payable?

IMT must generally be paid in the following situations:

• the purchase of residential or commercial property (new or existing); 
• property exchanges (property swaps); 
• the early acquisition of property under a real estate leasing agreement. 

In each case, the tax must be settled before the ownership transfer is completed.

IMT Rates

The applicable IMT rate depends largely on the purpose for which the property will be used.

Properties acquired as a main and permanent residence generally benefit from more favourable tax rates than properties purchased as:

• second homes; 
• holiday homes; 
• rental investments. 

The Portuguese State updates the IMT thresholds periodically.

For 2026, the rates applicable to secondary residences and rental properties are as follows:

It is important to note that the final IMT payable is calculated using progressive tax brackets and deductible amounts established by law, rather than by applying the percentage to the entire purchase price alone.

Other situations where IMT applies

IMT is not limited to residential property purchases.

It may also apply to the acquisition of:

• rural properties; 
• other urban properties; 
• other taxable transfers of real estate; 

property acquired by legal entities resident in jurisdictions classified as tax heavens.

Depending on the nature of the transaction, the applicable tax rates are generally:

• 5% for rural properties; 
• 6.5% for certain urban properties and other taxable acquisitions; 
• 10% where the purchaser is a legal entity resident in a jurisdiction listed as a tax haven. 

How do you pay IMT?

IMT must be paid before signing the final deed of purchase (escritura pública) or completing the authenticated private purchase agreement.

This is because the notary or lawyer handling the transaction will require proof that the tax has been paid before the ownership transfer can be completed.

Payment can be made by:

obtaining the IMT assessment through the Portuguese Tax Authority (Portal das Finanças); or visiting the local Tax Office (Serviço de Finanças) responsible for the property’s location. 

Once the tax has been assessed, the Tax Authority issues a payment document that must be settled before the transaction is formalized.

Conclusions

IMT is one of the principal taxes associated with buying property in Portugal and should always be factored into your purchase budget alongside stamp duty, notary fees, registration costs and any financing expenses.

Because the amount payable depends on the property’s value, intended use and the legislation in force at the time of purchase, it is advisable to calculate the expected IMT before committing to a transaction.

If you are unsure how the tax applies to your specific circumstances, consult a certified accountant or legal adviser specializing in Portuguese real estate transactions to ensure full compliance with the applicable tax rules.