Key figures — as of 2026-08-29: Maximum recommended debt-effort ratio (DSTI) cut from 50% to 45% for solvency assessments from 1 August 2026 — Banco de Portugal — mortgage maturity capped at 40 years for borrowers aged 35 or under, 35 years for older borrowers — banks can only let 10% of credit granted per half-year exceed the 45% threshold, down from a two-tier exceptions regime — GrowIN calculates the DSTI cut alone reduces maximum loan size by roughly 10% for a given income, all else equal.
What actually changed on 1 August
Banco de Portugal's new macroprudential recommendation applies to solvency assessments carried out from 1 August 2026 onward. The changes apply to contracts whose borrower solvency assessment takes place from 1 August 2026, and this deferred application gives institutions an adequate period to adjust. It replaces the framework that had governed housing and consumer lending since 2018, and the central bank was explicit about why: the review responds to the need to reinforce financial system resilience, promoting prudent lending criteria given accelerating housing prices and signs of looser credit conditions.
The single biggest number to know is the debt-service-to-income ceiling, known locally as taxa de esforço. Until now Banco de Portugal recommended a maximum effort rate — the share of monthly net household income going to loan instalments — of 50%; under the new recommendation that limit drops to 45%. That's the figure every bank manager in Portugal is now plugging into affordability spreadsheets before quoting a mortgage.
Maturity limits were also simplified. The reference effort-rate limit drops from 50% to 45%, and maximum terms become 40 years for borrowers up to age 35 and 35 years for those older than that. The old system had a more granular set of age-based tiers plus a separate recommendation on average portfolio maturity; both are gone, replaced by two clean cut-offs.
The exceptions regime — the wiggle room banks had to approve riskier files anyway — was tightened too. The new rule caps at 10% of the amount granted each semester the operations that can exceed the effort-rate ceiling, meaning only 10% of credit granted by each bank per half-year can carry an effort rate above 45%. Previously that flexibility was split into two bands — up to 10% of lending could sit between 50–60% effort rate, and up to 5% could exceed 60% — so tightening it into one narrower bucket removes some of the headroom banks used for marginal cases, which is exactly where many non-resident applicants with irregular foreign income used to land.
One useful clarification for buyers structuring purchases through financial leasing: real-estate financial leasing is now excluded from the recommendation's scope given its distinct characteristics and limited weight in Portugal's housing credit market, while leasing of movable goods remains covered.
Why this matters specifically for non-resident buyers
Existing LTV caps for property acquisition haven't been rewritten by this recommendation — financing can still reach up to 90% for the purchase of a primary permanent residence and up to 80% for other purposes under the macroprudential framework. But that's the national ceiling, not what a non-resident actually gets offered. In practice, foreign buyers already sit well below it: banks typically cap non-resident lending at 60–70% LTV regardless of the regulatory maximum, precisely because of the age-old problem the sector has with borrowers who live and earn abroad — harder to chase if a loan sours, harder to verify on paper.
What the August rules change is the affordability side of that equation, not the deposit side. A lower DSTI ceiling squeezes the loan amount a bank will approve for any given income, and that bites hardest for buyers already stretched by a smaller LTV and a bigger required deposit.
GrowIN's calculation: run the standard mortgage payment formula at a typical 4% TAEG over 30 years, and a household earning enough to service €1,500 a month in debt (50% of a €3,000 net income) previously qualified for roughly €314,000 in borrowing capacity. Under the new 45% ceiling, the same €3,000 income supports only €1,350 a month in instalments — around €283,000 in borrowing capacity. That's a loss of roughly €31,000, or almost exactly 10%, purely from the DSTI change, before any bank-specific risk margin on non-residents is even applied.
"For non-resident buyers already facing tighter loan-to-value limits, a stricter effort-rate ceiling means the mortgage math now closes about ten percent smaller than it did in July," notes GrowIN Portugal Editorial.
What to watch next
These are recommendations, not statute — the recommendations take effect on 1 August 2026, but for now they are not binding. Banks still have room to lend outside them within the shrunken exceptions bucket, and the 45% limit is a Banco de Portugal recommendation that admits exceptions. Since 2018, though, lenders have treated similar recommendations as de facto policy, so expect them to shape actual approvals from September onward rather than sit on a shelf. Applications assessed before 1 August 2026 remain subject to the previous rules, so anyone already mid-process with a bank is unaffected.
Anyone budgeting a Portuguese purchase from abroad should now run affordability numbers at 45%, not 50%, get a NIF and a pre-approval conversation with a Portuguese lender early, and treat any bank valuation coming in under the agreed price as a real risk to the deposit — a shortfall there compounds with the tighter effort-rate ceiling rather than offsetting it. For the wider legal and tax groundwork non-residents need before signing anything, see our relocation hub.
Foreign buyers who ran the numbers in July should run them again before making an offer.