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What the August figures show
In its release of 18 September, Portugal's statistics office, INE, reported an average monthly mortgage payment of €418 for August 2026, four euros more than in July. The implicit interest rate across outstanding mortgage contracts rose to 3.162%.
These figures describe a statistical average. They are not a bank's offer to a new buyer and do not predict how an individual household's monthly payment will change.
The national average and your monthly payment answer different questions
The indicator helps track the market. To understand your own costs, check your outstanding loan balance, remaining term and interest rate arrangement. Two loans with the same rate can have different monthly payments because they finance different amounts or end on different dates.
For variable-rate mortgages, Banco de Portugal explains that the rate resets at intervals matching the contractual reference rate. Check the next reset date in your contract or ask your bank, rather than assuming that a news report immediately changes the following month's payment.
Using the information when looking for a home
Start with a full monthly budget: mortgage payments, insurance, condominium charges and running costs. Leave room for maintenance and unexpected expenses. This helps establish a realistic price range before selecting properties to visit.
When requesting loan offers, use the same amount and term to make comparison easier. Discuss the charges listed in each offer and ask which ones can change. The news provides market context; your decision should use the figures for the particular home and loan you are considering.