Portugal's Young-Buyer Housing Guarantee Walks Into Its December 2026 Cliff With 32,338 Contracts Signed and 905 Million Euros Drawn — Banco de Portugal Drafts a Macroprudential Brake While BCP and BPI Press for an Extension

Fifteen months after it opened the door to 100% loan-to-value mortgages for under-35s buying their first permanent home in Portugal, the public guarantee on housing credit has financed 32,338 contracts worth €6.548 billion, with €905 million of state guarantee drawn, and now walks directly into a 31 December 2026 statutory cliff. The figures, published by Banco de Portugal on 4 May 2026 for the cohort through March, sit at the centre of a public stand-off between the central bank — which is finalising a macroprudential brake on the scheme — and the country's two largest private lenders, BCP and BPI, which have asked Lisbon for an explicit extension into 2027.

Reporting today (10 May 2026) reads the garantia pública as decisive for banks to keep doing business with under-35 buyers, while the supervisor is preparing to tighten the rules around it. The collision is structural — the scheme was authored to compensate for the housing-affordability squeeze, but the central bank's own data now reads the same scheme as the dominant driver of high-risk mortgage origination in Portugal.

The Numbers Banco de Portugal Printed on 4 May

For the 15-month window from launch through March 2026, the scheme captured:

• 32,338 contracts at an aggregate value of €6.548 billion, with €905 million of state guarantee drawn against a total envelope reinforced in April 2026 to €2.3 billion;
• A scheme share of 24.3% of all Portuguese housing contracts and 27.8% of total housing-credit amount over the period;
• March 2026 alone: 2,646 contracts and €569.2 million, representing 27.8% of contracts and 31.4% of amount in the single month — a clear ramp through Q1;
• Among under-35 borrowers specifically, the scheme touched 43.9% of contracts and 46.2% of amount (against an under-35 total of 73,610 contracts and €14.162 billion);
• Borrower profile: 86% Portuguese nationals, 8% Brazilian; roughly half aged 26–30; 46% university-educated; 47% of loans above €200,000; 84% on maturities longer than 35 years; average LTV on guaranteed credits at 99%.

The state guarantee covers up to 15% of the transaction value as guarantor, which is the mechanical lever that lifts the bankable LTV from the standard 90% ceiling to the 100% reality on the ground. The age cap is 35 years; the property has to be the buyer's primeira habitação própria permanente; the contract must be signed by 31 December 2026.

What Changed in the Risk Tape

The central bank's macroprudential reading is the second tape, and it reads tighter. According to Banco de Portugal data widely reported in the financial press in late April 2026:

• The share of new housing loans to high-risk borrowers jumped from 3% in 2024 to 21% in 2025 — a seven-fold ramp coinciding with the rollout of the guarantee;
• The share of new primary-residence loans with LTV above 90% rose from ~0.1% in 2024 to 24% in 2025, with 85% of those high-LTV cases corresponding to state-guaranteed operations;
• Household debt edged up from 54.9% to 56.1% of GDP over 2024–2025, with the household debt-to-disposable-income ratio at 80.4% in Q3 2025;
• The supervisor's current stress-test premium on housing-credit affordability sits at 1.5 percentage points (in force since October 2023, down from the prior 3pp), and is among the parameters under review.

Governor Álvaro Santos Pereira has framed the macro view consistently — "the problem of the housing market is not on the demand side, but on the supply side" — while his predecessor Mário Centeno, speaking in October 2024 before stepping down, characterised the scheme bluntly: "the public guarantee is given to banks and protects borrowers in no way." The line still circulates in the macroprudential debate because it captures the central bank's institutional concern: the scheme transfers downside protection from the lender to the taxpayer, but does nothing about the household's debt-service capacity if rates or prices move against them.

The Macroprudential Brake Being Drafted

What Banco de Portugal is preparing, according to financial press reporting from 23 April 2026, is a package of macroprudential measures specifically calibrated to cool guarantee-backed origination without dismantling the political instrument. The instruments under consideration are not exotic — they are the standard ESRB toolkit applied with sharper teeth:

• A possible increase in the stress-test premium back toward the pre-2023 3pp level, lifting the effective debt-service test buyers have to clear;
• Revised LTV/DSTI/maturity limits applied to the guarantee-backed slice specifically, separating it analytically from the standard 90%-LTV pool;
• Enhanced documentation requirements for contracts that deviate from the standard envelope, raising the operational cost of the high-LTV tail.

The package is expected at the BdP's Conselho de Administração over the coming weeks, with implementation likely before the summer break. Importantly, none of these measures touch the political instrument — the guarantee itself, its envelope, its 31 December 2026 sunset — they tighten the credit standards under which the guarantee can be deployed. The supervisor and the legislator are operating on different levers; the friction is in the resulting bankable envelope.

What the Banks Are Saying

The position of the lenders is now public. BCP CEO Miguel Maya publicly disagreed with the supervisor's classification of state-guaranteed loans as "high risk" in early May, arguing that the legal guarantee structure mechanically transfers part of the loss-given-default from the bank to the State and that the credit-quality screening on the underlying borrower remains unchanged. BPI CEO João Pedro Oliveira e Costa has framed the policy debate in retention terms — without the guarantee, young Portuguese will not find an alternative and may emigrate.

The bank lobby's specific ask is for an explicit extension of the scheme beyond 31 December 2026, ideally to end-2027 or end-2028, paired with the supervisory tightening that BdP is going to impose anyway. The Government's published position, as of the April 2026 €750 million envelope reinforcement that lifted the headline pot to €2.3 billion, is that the scheme runs as legislated through end-2026 with a discretionary extension power written into the statute ("podendo ser prorrogada"). No formal extension has been tabled.

Why the Cliff Matters for Origination

The cliff is real because of how the scheme has come to dominate the under-35 origination pipeline. With 43.9% of under-35 contracts and 46.2% of under-35 amount running through the guarantee by March 2026 — and the monthly share rising — a 31 December 2026 expiry would not return the market to the pre-2025 baseline. It would create a structural break in the 27–35 demographic's access to first-time-buyer credit, in a country where the household debt-to-disposable-income ratio is already at 80.4% and where the supply side, as the Governor notes, is the binding constraint anyway.

Mechanically, three things happen if the scheme expires without replacement: the 24% of new primary-residence loans now booked above 90% LTV reverts to ~0.1% (the 2024 baseline); a non-trivial slice of the 26–30 cohort, with median household savings well below the 10% down-payment threshold on Lisbon/Porto pricing, drops out of the buyer pool; and the inverse pressure on the rental market — which the OE 2025 framed as the constrained-supply binding constraint — increases.

The Counterfactual the Central Bank Is Quietly Modelling

The supervisor's institutional concern is what happens to a 100% LTV cohort if the macro turns. The stress test embedded in BdP's macroprudential framework runs a 3–4 percentage point rate shock and a 10–15% house-price correction over a 3-year horizon. A household at 99% LTV, on a >35-year maturity, with 80%+ debt-to-disposable-income, sits closer to negative equity under that scenario than the macroprudential framework's tolerated tail risk. The institutional bet behind the brake is that even if the scheme is extended politically, the supervisor needs to widen the LTV–DSTI envelope around it before the next macro shock arrives.

Where the Decision Lands This Year

Two parallel decisions are pending. The Banco de Portugal macroprudential package is on the desk of the Conselho de Administração and could be adopted before parliamentary summer recess. The Government's call on the 31 December 2026 sunset — extend, let lapse, or replace with a successor instrument — is a political decision that sits with the Ministério das Finanças and ultimately with the Conselho de Ministros, against the OE 2027 calendar. The two timelines may diverge: the brake could land before the sunset call, structurally narrowing the scheme even while it remains legally in force.

What This Means for Expats

• Under-35 foreign residents inside the scheme: Eligibility runs to jovens residentes em Portugal with primary-residence purchase intent — the scheme does not require Portuguese nationality, but it does require Portuguese tax residency and a clean credit profile at the originating bank. If you are inside the age cap and within the 15-month window, the contract has to be signed before 31 December 2026 to lock the guarantee.
• Pre-approval timing matters now: Banks are unlikely to walk back current pipeline approvals, but new applications from August onward will face whatever the supervisor publishes — likely tighter DSTI tests and stress premia. Locking pre-approval through summer 2026 is the prudent move.
• Currency-resident foreign buyers: The scheme does not extend to não-residentes fiscais. Foreign buyers in the Golden Visa or D7/D8 visa pipeline who have not yet established Portuguese tax residency cannot access the 100% LTV; the standard 70–80% LTV applies, with the rest as down payment.
• Rental-side implications: If the scheme lapses, the constrained rental supply gets one more demand-side push as a slice of the under-35 cohort that was buying re-enters renting. Lisbon and Porto are the obvious pressure points.
• Risk to refinance: The 99% LTV cohort sits inside a 35-year maturity with no built-in equity. Refinancing at a different bank in years 1–5 will be priced against current market LTV — if Portuguese house prices flatten or correct, refinancing options narrow sharply.
• Foreign-bank parallel: The scheme is exclusive to banks operating in Portugal — branch operations of foreign banks without Portuguese authorisation are not accredited counterparties for the guarantee. CGD, BCP, BPI, Santander Totta, Novobanco and the major mutualists are.

The 31 December 2026 date is the headline, but the supervisory tightening is the live wire. For under-35 buyers who can still clear the bank's credit-scoring test, the next eight months are the working window — for the political extension debate, the next eight weeks are when the macroprudential brake lands and re-prices the bankable envelope.