Foreign Workers Now Make Up Nearly One in Five Segurança Social Contributors as Portuguese Firms Lean Harder on Immigrant Labour

Portugal's economy is leaning on foreign labour to a degree without recent precedent. In 2025, the number of foreign workers paying into Segurança Social (Social Security) passed one million for the first time — reaching 1,115,541 contributors, up from 1,048,174 a year earlier — and now represents close to a fifth of everyone contributing to the system.

The trajectory is what stands out. Foreign nationals made up just 5.1% of contributors in 2015; by 2025 that share had climbed to 19.7%, a near-quadrupling in a decade. Public broadcaster RTP reported that immigrants now account for roughly 20% of the active population, and that the reliance is far heavier in particular industries: foreign workers make up about half the agricultural workforce and around 40% of staff in hotels and restaurants.

Paying in more than they draw out

The contributions are substantial. Over the full year, foreign nationals paid in €4,148.96 million — about 14% of all worker contributions to the system — a figure that has grown roughly 8.5 times since 2015. Studies of the data have consistently found that immigrants contribute more than they receive in benefits, delivering a net positive balance well above €1.6 billion and, in effect, propping up a contributory system that would otherwise be shedding payers as the native population ages.

That last point is the structural backdrop. Portugal's own demographics are working against it: the statistics office INE (Instituto Nacional de Estatística — Statistics Portugal) projects the resident population could fall toward 8.3 million by 2100 without sustained inward migration. Without the foreign workforce, the gap between contributors and pensioners would be widening faster still.

The sectors that would seize up first

The headline numbers describe absolute size — the largest concentrations of foreign workers are in accommodation and food service, administrative and support activities, and construction. But the dependence is most acute in agriculture, where non-nationals are now the majority of the labour force in many areas, and in hospitality, the engine of the tourism economy. These are precisely the sectors that would struggle to function if the inflow slowed.

The data lands in a charged political moment. Immigration has dominated parliamentary fights this year, from a fast-track visa channel routing workers into shortage sectors to the state-to-state recruitment of drivers, metalworkers and builders from Mozambique. Economists who track the figures caution that the long-term pay-off depends less on the headcount than on whether Portugal can actually integrate these workers — stable contracts, recognised qualifications and a path to settled status — rather than parking them in low-wage, high-turnover jobs.

What This Means for Expats

• If you work here, you are part of this story: the 19.7% figure counts everyone contributing to Segurança Social, including skilled professionals and remote workers, not just the agriculture and hospitality headlines.
• Your contributions build your own entitlements: paying into the system earns access to unemployment cover, parental pay, sickness benefit and, eventually, a pension. Make sure your registration is in order and that employers are declaring you correctly.
• Integration is where the policy debate is heading: recognition of foreign qualifications and the route to a settled título de residência are likely to stay in the spotlight — watch for changes that affect renewals and access to benefits.

The picture the numbers paint is unambiguous: foreign labour is no longer a supplement to the Portuguese workforce but a load-bearing part of it — and of the social-security accounts that depend on it.