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Calculate your Mortgage monthly payment in Portugal

Try different values for price, down payment, and term. The suggested rates are reference assumptions, not offers from any bank.
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Three questions to find out your monthly payment

€

€

years

We assume a variable reference rate (assumption) and primary residence. You can change everything in “In detail”.

How we calculate

We calculate the monthly payment and the costs of a mortgage with a hypothetical rate, within the Banco de Portugal’s rules.
  1. How much you can borrow

    The loan goes up to a percentage of the home’s value and up to a maximum term that depends on your age.Regulatory rule · Recomendação Macroprudencial do Banco de Portugal
  2. The monthly payment

    A constant payment, with the reference Euribor (with its date) plus a hypothetical spread, or with a hypothetical fixed or mixed rate. It is not a credit offer.Assumption
  3. The costs on top

    IMT, Stamp Duty on the purchase and on the loan, the deed, and life and multi-risk home insurance.Legal rule · CIMT, art.º 17.º; Tabela Geral do Imposto do Selo, items 1.1 and 17.1.4

Myths

  • Depends“The lowest spread is always the cheapest loan.”Fees, insurance and bundled products can cancel out the difference.What to do: compare by the APRC (TAEG) and by the total amount payable (MTIC).Source: Banco de Portugal, Portal do Cliente Bancário; DL n.º 74-A/2017.
  • Depends“A fixed rate is always more expensive.”You pay for the certainty of the payment. If Euribor rises, the fixed rate may turn out cheaper. If it falls, it turns out more expensive.What to do: choose by the slack in your budget: if a rise in the payment would squeeze you, certainty is worth money.Source: simulator calculation.
  • Myth“I have to take out life insurance with the bank.”You can choose the insurer, as long as the policy has the required cover.What to do: ask the bank for the list of required cover and compare it with simulator 21.Source: DL n.º 74-A/2017; Lei n.º 14/2026.

Frequently asked questions

The amount of the monthly payment depends on several factors: the amount financed, the outstanding principal, the loan term, the interest rate (spread and index, where applicable), the rate type (fixed, variable or mixed) and any early repayments.
With a variable rate, the interest rate follows the evolution of Euribor. Whenever Euribor is reviewed (usually every 3, 6 or 12 months), the monthly payment may go up or down.With a fixed rate, the interest rate remains unchanged throughout the agreed period, providing stability in the monthly payment. As a rule, the initial payment is higher than with a variable rate.A mixed rate combines both options. During an initial period (usually 2, 5, 10 or more years) a fixed rate applies and, after that period ends, the loan switches to a variable rate indexed to Euribor.The choice depends on your risk profile, expectations about how interest rates will evolve and how predictable you want your household budget to be.
As a rule, banks finance up to 90% of the lower amount between the purchase price and the appraisal value for a primary residence.For a second home or properties intended for investment, the financing limit is usually lower and varies from institution to institution.Until December 31, 2026, there is a public guarantee scheme for young people in force, which allows eligible clients to obtain financing of up to 100% of the purchase price, for homes up to 450 000 €, provided that all legal requirements and the credit institution’s approval criteria are met.
Euribor is the most commonly used index in variable-rate Mortgages in Portugal.When Euribor rises, the monthly payment tends to increase. When it falls, the monthly payment tends to decrease.Anyone choosing a variable rate must be prepared for these fluctuations over the life of the loan.
In most situations, buyers need their own funds, since banks usually finance up to 90% of the property value.However, until December 31, 2026, young people who meet the requirements for the public guarantee can benefit from financing of up to 100% of the purchase price, for homes up to 450 000 €.It is important to remember that there are still expenses that are usually not financed, such as appraisal, deed, registrations, taxes (when applicable) and other costs associated with the process.
Although they are often confused, they are different concepts.The effort rate corresponds to the percentage of net monthly income used to pay loan installments under current conditions.DSTI (Debt Service-to-Income) is the indicator used by banks to assess a client’s borrowing capacity. Unlike the effort rate, it also considers a stress scenario, simulating an increase in interest rates on loans exposed to that risk and applying the assumptions set out in Banco de Portugal’s macroprudential recommendations.Thus, a household may have a current effort rate of 38%, but a higher DSTI due to the impact of that simulation.Since August 1, 2026, Banco de Portugal’s macroprudential recommendation has advised banks, as a general rule, to apply a maximum DSTI of 45%; each bank may exceed this limit in a small portion of the loans it grants.
Official data verified on 11/02/2026 · Sources: Diário da República, Autoridade Tributária, Banco de Portugal · see sources