What the ISS Data Actually Says
New figures from Portugal's Instituto da Segurança Social show a sharp rise in migrant workers disappearing from the country's contribution records. The Portugal News reported on July 3, 2026: "A sharp rise in the number of foreign workers disappearing from Portugal's social security records has raised concerns about growing departures from the country or an increase in irregular residency. According to data from Portugal's Social Security Institute (ISS), 162,252 migrant employees ceased making contributions in 2025 and did not subsequently reappear with an active registration." The figure represents a 66 percent increase compared to 2024, when roughly 97,000 workers exited the system under similar circumstances.
The ISS tracks this category through its active-registration database. A worker "disappears" from the record when their contribution entries stop and no new employer registers them as active within a reasonable time window — typically 30 to 60 days, which accounts for normal job transitions. The workers counted in the 162,252 figure were previously registered and contributing normally. This makes the data distinct from the question of how many migrants are in Portugal without any social security registration at all, which is a separate and much harder-to-measure problem. The ISS figure captures a transition from formal to invisible status, whether through departure or through entry into the undeclared economy.
The surge is notable in its scale relative to the total foreign-worker population. Portugal had approximately 1.1 million registered foreign workers in the social security system at the start of 2025, meaning the 162,252 exits represent roughly 15 percent of the registered foreign workforce ceasing to appear in the records over the course of a single year. This is not a marginal fluctuation — it is a structurally significant shift in the composition of Portugal's declared workforce, and it arrived in the same year that AIMA was working through a processing backlog of several hundred thousand pending applications.
Who Left and Who Went Irregular: Parsing the Two Explanations
The ISS data does not distinguish between workers who physically left Portugal and workers who remained in Portugal but moved into undeclared employment. Both produce the same signature in the contribution records: an active registration that simply stops, with no successor employer picking up the registration. The public debate around the figures has largely defaulted to the departure interpretation — framing the data as evidence that Portugal is becoming less attractive to migrant workers — but this interpretation requires supplementary data that the ISS release does not provide.
The alternative explanation — that a significant fraction of the 162,252 workers remained in Portugal in undeclared employment — is consistent with other trends visible in 2025 and early 2026. The AIMA processing backlog left hundreds of thousands of workers in limbo with expired permits or pending applications. Workers in that status are formally permitted to work under the automatic extension provisions, but employers in lower-margin sectors (agriculture, construction, domestic services, food processing) sometimes preferred to move workers off formal payroll when their status became ambiguous, avoiding the administrative complexity of the auto-extension documentation. This creates a pipeline from formal employment to undeclared work that does not involve departure at all.
A third possibility, smaller in scale but worth flagging, is transitions to self-employment arrangements that were registered under a different contribution category and therefore do not appear as a continuation of the employment registration. Portugal's Avença (simplified freelance regime) and the Ato Isolado (occasional service provision) regimes involve contribution flows that go through Finanças rather than ISS and may not appear in the ISS active-employment records as continuous. This is a known data artifact in the Portuguese social security system for workers who shift between employment and freelance arrangements.
Why Brazilian Workers Account for Around 60,000 of the Exits
The Portugal News article reports that approximately 60,000 of the 162,252 exits were Brazilian workers — roughly 37 percent of the total, disproportionate even to Brazil's dominant share of Portugal's migrant population. This concentration reflects two overlapping dynamics. The first is the scale of the Brazilian arrival wave of 2022 to 2024, when Portuguese language access, the CPLP agreement's favorable treatment, and economic conditions in Brazil drove very large numbers of Brazilian workers into Portugal's lower-wage service economy. Workers who arrived in that wave were disproportionately in the categories — hospitality, logistics, food service, cleaning — most vulnerable to the informal-economy transition.
The second dynamic is the Brazilian real's depreciation and the relative purchasing power calculations facing Brazilian workers in Portugal in late 2024 and 2025. Several Portuguese sectors reduced nominal wages or reduced hours in response to margin pressures. For Brazilian workers evaluating the return on continued residence in Portugal against the alternative of relocation to Spain, the UK, or outright return to Brazil, the calculus shifted materially. The Brazilian community in Portugal has well-established networks in multiple destination countries; the social infrastructure for a collective shift in destination already exists and likely contributed to genuine departure in a subset of the 60,000 exits.
The Brazilian exit figure also captures a technical artifact of the AIMA situation specific to Brazilian nationals. The CPLP regime allows Brazilians to apply for residence on more favorable terms than most other non-EU nationals, but the application processing times have been as long as other nationalities despite the regime's preferential framing. Some Brazilian workers who were in Portugal on CPLP-based applications, found their applications stalled or their permits expired without renewal, and chose to exit and re-enter rather than wait. This pattern shows up in departure statistics as an exit and, if the re-entry involves a different employer or a different permit status, may not immediately produce a successor registration in the ISS database.
How a Gap in Social Security Contributions Affects Your Residence Permit
For any worker currently in Portugal on a residence permit that requires demonstrating lawful employment — this covers the Autorização de Residência for employed third-country nationals (Article 74 of Lei 23/2007), the Tech Visa, D1 permit holders, and most other employment-based categories — a gap in social security contribution records at the time of renewal is a material risk factor. AIMA's renewal review includes a verification of social security contributions as proof that the employment relationship remained active during the previous permit period. A clean, continuous contribution history is the simplest way to pass this check. A gap raises questions about whether the work continued during the gap, and AIMA's response to those questions depends significantly on the documentation the applicant provides.
A gap that is explained and documented — for example, a period of unemployment that was formally registered with IEFP (the national employment institute), a period of sick leave with ISS records, or a period where the employer failed to declare contributions but the employment contract continued — can typically be addressed with the supporting documentation. A gap that is unexplained, or where the worker was genuinely in undeclared employment during the gap period, is harder to manage. AIMA does not publish explicit thresholds for how long a contribution gap triggers a refusal, but gaps exceeding 90 days in the renewal period appear in practice to generate additional documentation requests at minimum and, in some offices, to generate substantive concerns about whether the residency basis still exists.
The timing interaction with AIMA's own backlog is particularly acute for workers whose permits expired during 2025 and who were relying on the automatic extension provisions. Workers in automatic extension status are legally permitted to remain and work, but their status is administratively invisible in the ISS database unless their employer specifically notifies ISS that the extension applies. Employers who did not understand or did not bother with this notification may have created the appearance of a gap in the contribution records even where the legal basis for working remained valid throughout.
What to Do If Your Contributions Record Has Gaps
The first step for any worker who suspects their contribution record may have gaps is to log into the Segurança Social Direta portal at app.seg-social.pt and download a full contributions statement covering the current permit period. This is the same document AIMA will check at renewal, so verifying it yourself before the appointment eliminates surprises. The portal shows contributions by month, employer, and contribution category. If you see a gap, identify whether the gap corresponds to a genuine employment interruption, an employer failure to declare, or a transition period between employers.
If the gap reflects an employer failure to declare your contributions, you have a right to file a complaint with the ISS local services office (Serviço Local de Segurança Social). Bring your employment contract, your last several pay slips, and any Finanças records showing your declared income from that employer during the gap period. The ISS will investigate and, where the failure is confirmed, can order retroactive registration and impose penalties on the employer. This process takes time — typically several months — but it creates an official ISS record of the complaint and the employer's failure, which you can present to AIMA alongside your renewal documentation to explain the gap.
If the gap reflects a genuine period of unemployment, obtain your registration with IEFP as a job-seeker for that period, which creates an official record of the unemployment status. Residence permit holders who were registered unemployed during a gap have a much cleaner renewal path than those whose gap has no associated official registration. The 90-day unemployment tolerance under Article 85(1) of Lei 23/2007 specifically protects workers who lose employment during their permit period — but only if the unemployment is formally registered. If you were unemployed but did not register with IEFP at the time, registering retroactively is worth attempting, though IEFP offices have discretion over whether to accept backdated registrations.
For workers who are approaching a renewal appointment and have a contribution gap in the record, addressing this proactively before the appointment — rather than waiting to be asked — is the recommended approach. A renewal file that arrives with a gap already explained by supporting documents is processed very differently from one that arrives clean and then surfaces the gap when AIMA cross-checks the ISS records. AIMA officers have limited time per file; a pre-explained gap with documentation is much less likely to trigger a formal deficiency notice (which adds months to processing time) than an unexplained gap that the officer has to investigate.
The Broader Picture: Is Portugal Becoming a Less Attractive Destination?
The ISS data has been framed in public commentary as evidence that Portugal is losing its appeal as a migrant-worker destination, and the framing has some support. The 66 percent increase in exits is dramatic. AIMA's processing delays — which stretched to 18 months or more for new applications in 2024 and early 2025 — imposed real costs on workers whose status was uncertain for extended periods. The end of tacit approval in June 2026 removed an important safety net. The tightening of the family reunification regime under Lei 61/2025 (effective October 2025) made it harder for workers to bring family members. And Portuguese housing costs in Lisbon and Porto, relative to lower-end wages, deteriorated significantly between 2022 and 2025.
At the same time, the data should not be read as a permanent trend without additional evidence. Migration flows respond to relative conditions, and the same comparison that makes Portugal look less attractive in 2025 than in 2022 may reverse if conditions in origin countries worsen or if comparative EU destinations tighten further. Germany, the Netherlands, and Belgium have all adopted more restrictive immigration postures in 2025 and 2026, which removes some of the most attractive alternatives for workers who might otherwise have chosen Northern Europe over Portugal. Spain remains a competitive alternative, particularly for Brazilian and Latin American workers, but Spain's own processing backlogs and housing costs in its major cities have also increased.
The more structurally concerning interpretation of the ISS data is not departure but irregularity — a large subset of the 162,252 workers remaining in Portugal but moving into the undeclared economy. The undeclared economy is not a stable equilibrium for residence permit purposes: workers who are in Portugal in irregular employment status cannot renew their permits on the basis of that employment, face increasing enforcement risk as AIMA reorganizes its inspection capacity, and become progressively harder to regularize as their departure from the contribution records lengthens. The ISS figures suggest that Portugal's migration system may be producing a growing cohort of semi-regularized workers who are formally present but effectively outside the documented economy — a pattern that generates costs for the workers, for the social security system, and for the public services that provide care regardless of contribution status.