Anyone with a house purchase in the pipeline should look at their spreadsheet again. Banco de Portugal has revised the macroprudential rulebook that governs how banks assess mortgage applicants, and from 1 August 2026 the maximum debt-service-to-income ratio drops from 50% to 45%. For foreigners buying in Portugal — who already face stricter loan-to-value limits and bigger deposit requirements than residents — this tightens the squeeze further.
What’s actually changing
Banco de Portugal, acting in its role as national macroprudential authority, has approved a new Recommendation replacing the framework in place since 2018. Portugal’s central bank has tightened its macroprudential lending rules by lowering the recommended debt-service ratio for new loans while extending the maximum mortgage term for younger borrowers. The change applies to both home loans and consumer credit, and the new rules will apply to consumer loans, including mortgages, where the borrower’s credit assessment takes place from August 1, 2026 onwards.
The headline number is the debt-service-to-income (DSTI) ratio — what Portuguese banks call the taxa de esforço. The most significant change reduces the recommended debt-service ratio — the proportion of a borrower’s income spent repaying debt — from 50% to 45%, including stress tests that assume a sharp rise in interest rates. In practical terms, a household with €2,000 in net monthly income that could previously stretch to a €1,000 instalment now tops out closer to €900 — a real cut in borrowing power, not just a technical adjustment.
Crucially, the ratio isn’t limited to the new mortgage alone. It factors in every credit commitment a borrower already carries — car loans, personal loans, credit cards with a repayment plan — so applicants juggling existing debt will feel the tightening hardest.
Less room for banks to bend the rules
Banks currently have some flexibility to approve loans above the recommended ceiling in a minority of cases. That margin is shrinking too: the exceptions banks can use above the general limit fall from 15% to 10% of the credit granted per institution each half-year, according to Banco de Portugal’s published communication on the revised Recommendation. Banks will still be able to exceed the 45% threshold, but under a “comply or explain” logic they’ll need a stronger justification for doing so, and there’ll be fewer approvals it can cover.
Loan-to-value rules change too. The Bank of Portugal has also removed the special rule allowing banks to lend up to 100% of the value of properties they own. Those transactions will now be subject to the same loan-to-value (LTV) limits as all other property purchases. That means 90% LTV for a primary residence and 80% for other purposes — closing off what had been an easier financing route for buyers of bank-repossessed stock.
Mortgage terms shift in the other direction. Instead of the old three-tier structure by age, there are now just two brackets, and the requirement to keep the average maturity of a bank’s whole loan book converging toward 30 years disappears. Borrowers aged 35 or under can now access terms of up to 40 years; those over 35 are capped at 35 years — slightly more generous for buyers in their early thirties than before, even as the income test gets stricter.
Why now
Banco de Portugal points to the Bank of Portugal is seeking to curb rising household indebtedness amid soaring house prices as the driver behind the recalibration. The central bank has flagged accelerating mortgage volumes, larger average loan amounts, and a growing share of younger, lower-income first-time buyers entering the market — partly a side effect of the public guarantee scheme helping young Portuguese buy their first home. None of this is legally binding yet, but it may not stay that way: the central bank governor Álvaro Santos Pereira is already calling for the recommendations to become mandatory, arguing “It is time for macroprudential rules to become binding.”
What it means if you’re buying from abroad
Foreign buyers were never on an equal footing to begin with. Non-residents typically face lower maximum LTVs than Portuguese residents, larger deposit requirements, and more paperwork to prove foreign income. Layering a stricter DSTI cap on top means non-resident applicants sitting close to the old 50% threshold could now be declined outright, or offered a smaller loan than expected — even with a healthy deposit ready to go.
If you’re mid-application, timing matters: the new limits apply to solvency assessments carried out from 1 August, not to the date you signed a promissory contract (CPCV). Anyone whose ratio sits between 45% and 50% has a real incentive to get the bank’s assessment finalised before the cut-off. Beyond that, the practical playbook for foreign buyers doesn’t change: settle other debts where possible, put down a larger deposit to shrink the loan amount, get your NIF and Portuguese bank account sorted early (see our tax & NIF guide), and compare offers — a mortgage intermediary can be useful given how much variation exists between banks’ own risk appetite within the new limits.
What to watch next
Two things are worth tracking over the coming months: whether Banco de Portugal follows through on making the Recommendation legally binding rather than advisory, and whether banks respond by pushing more clients toward fixed or mixed-rate products, which tend to fare better under the DSTI stress test than variable-rate loans. For anyone planning a purchase in Portugal this year, the message is straightforward — run the numbers now, and don’t assume the financing math that worked in June still works in September.
For guidance on financing, residency and the wider purchase process as a foreign buyer, our team at services can help you plan around these new lending rules before you make an offer.
Sources
This article was produced with AI assistance and editorial oversight in line with our editorial policy. It is general information, not legal or tax advice.