Euribor Jumps in Largest Three-Year Surge, Raising Mortgage Payments After Two Years of Declines

Portuguese homeowners with variable-rate mortgages will see payments rise in April for the first time in two years, as the 12-month Euribor rate posted its sharpest increase in three years amid eurozone inflation fears and Middle East conflict fallout.

The benchmark rate, which underpins roughly 90% of Portuguese home loans, climbed to levels not seen since mid-2024, adding approximately €13 per month to a standard €150,000 mortgage. The shift marks the end of a prolonged period of declining borrowing costs that had provided relief to households stretched by soaring house prices.

Why Euribor Is Rising Now

The surge reflects a combination of factors: eurozone inflation accelerating to 2.5% in March (up from 2.1% in February), energy price spikes driven by the Iran conflict, and market expectations that the European Central Bank will slow or pause its rate-cutting cycle.

Portugal's own inflation jumped to 2.7%—the highest in seven months—reinforcing the view that rate relief is over, at least temporarily. ECB policymakers have signaled caution on further cuts, noting that energy-driven inflation could prove more persistent than initially forecast.

Impact on Households

For a borrower with a €150,000 loan at a 30-year term, the April adjustment translates to roughly €156 in additional annual costs. While modest in isolation, the increase comes as household budgets face pressure from rising food and energy bills.

More concerning is the trajectory: if Euribor continues climbing—as markets anticipate—monthly payments could rise by €50 or more by year-end compared to early 2026 levels. Homeowners who stretched to buy during the 2023-2024 price surge, when properties appreciated 18.9% in a single quarter, may find themselves squeezed between elevated purchase prices and higher financing costs.

Expat and Foreign Buyer Considerations

Foreign residents with Portuguese mortgages face the same Euribor exposure as nationals, meaning anyone who financed a property purchase in recent years should budget for higher payments. However, expats earning income in foreign currencies may partially offset the increase if their home currency strengthens against the euro.

For prospective buyers, the Euribor reversal complicates affordability calculations. While Portuguese banks remain willing to lend to qualified foreign applicants, the combination of high property prices (which rose nearly 19% year-over-year in Q4 2025) and rising rates narrows the window for first-time buyers.

Non-resident buyers relying on foreign income should also note that Portuguese lenders typically apply stricter loan-to-value ratios (often capping at 70-80% for non-residents) and require proof of stable income. Rising rates make marginal deals less viable.

Government and Fiscal Response

Finance Minister Miranda Sarmento acknowledged Monday that the government's 2026 budget assumptions are under strain. He warned that planned IRS tax cuts and pension bonuses would be "more difficult to execute" given deteriorating fiscal conditions driven by the Iran conflict and Storm Kristin recovery costs.

The statement suggests limited capacity for direct household relief measures, leaving borrowers to absorb the higher costs without offsetting fiscal support.

Historical Context

The Euribor surge, while significant, pales compared to the 2022-2023 spike that saw the rate climb from near-zero to above 4% in under 18 months. That earlier shock triggered widespread financial distress and prompted government intervention, including temporary mortgage relief schemes.

Current levels remain well below those peaks, but the reversal of a two-year downward trend has psychological weight. Homeowners who assumed rates would continue falling—or at least stabilize—are now facing a different reality.

Looking Ahead

Economists expect Euribor to remain volatile through mid-2026, driven by geopolitical uncertainty and ECB policy signals. If energy prices stabilize (contingent on Middle East developments), inflationary pressures may ease, allowing Euribor to plateau or even decline modestly.

However, if the Iran conflict escalates or inflation proves stickier than forecast, further Euribor increases are likely—potentially reaching levels that trigger renewed household distress.

For now, Portuguese borrowers should prepare for modestly higher payments and consider locking in fixed-rate deals if available. Those contemplating property purchases may want to stress-test budgets against higher rate scenarios, particularly given property prices show no sign of falling.

The era of ultra-cheap mortgage money appears to be over. How long the adjustment lasts—and how painful it becomes—depends on factors largely beyond Portugal's control.