Summary
Spain’s government has enacted a large-scale regularisation program, granting legal status to approximately 500,000 undocumented migrants through a royal decree issued in early 2026. The initiative, led by Prime Minister Pedro Sánchez’s Socialist administration, is designed to address labor shortages and humanitarian concerns, with eligibility based on residency duration and a clean criminal record. The policy has provoked strong opposition from the conservative People’s Party (PP) and the right-wing Vox party, both of which argue the measure will strain public services and incentivize further irregular migration. Independent institutions, including the National Centre for Immigration and Borders (CNIF) and think tanks such as Funcas, contest the government’s 500,000 figure, suggesting the true number of eligible migrants could range from 350,000 to over one million. Spain’s irregular migrant population, estimated at up to 837,938 by 2025, primarily originates from North and Sub-Saharan Africa and Latin America, arriving via sea, land, and air routes. The policy’s implementation and contested scope reflect broader tensions in Spain’s migration landscape.

 

Detailed Report

1. Overview of Spain’s 2026 Regularisation Policy
In early 2026, Spain’s Socialist-led government enacted a royal decree to regularise the status of approximately 500,000 undocumented migrants. The policy, bypassing parliamentary approval, offers a fast-track process for residency and work permits to those residing in Spain for at least five months prior to December 31, 2025, with no criminal record. Applications are accepted from April to June 2026, with the initial permit valid for one year and renewable. The government frames the initiative as a response to demographic decline, labor shortages, and humanitarian imperatives, particularly in sectors such as agriculture, care, and hospitality.

2. Political and Legal Opposition
The regularisation has faced strong resistance from the People’s Party (PP) and Vox. The PP criticizes the lack of transparency and warns of potential strain on public services, while Vox denounces the measure as an “amnesty” that undermines national security and Spanish identity. Both parties argue the policy could act as a pull factor for further irregular migration. The PP has threatened to challenge the decree in the Constitutional Court, and Vox has pledged to appeal to the Supreme Court, citing concerns over legality and compliance with EU regulations.

3. Contestation of the 500,000 Figure
The government’s estimate of 500,000 beneficiaries is contested by multiple independent sources. The CNIF, a police-affiliated body, and the Funcas think tank suggest the true number of undocumented migrants in Spain could range from 750,000 to over one million, depending on eligibility criteria and enforcement. The Real Instituto Elcano estimates a range of 450,000 to 650,000, while NGOs such as CEAR and SOS Racismo argue the actual number of eligible migrants may be lower, between 350,000 and 400,000, due to documentation requirements. This wide range reflects both methodological challenges and political sensitivities surrounding the policy.

4. Context: Spain’s Irregular Migration Landscape
Spain’s undocumented migrant population has surged from just over 100,000 in 2017 to an estimated 837,938 by 2025, according to Funcas and CNIF. The majority of irregular migrants originate from Algeria, Mali, Senegal, Morocco, and Latin American countries such as Colombia and Venezuela. Migration routes include the perilous Atlantic crossing to the Canary Islands, the Western Mediterranean sea route, land border crossings at Ceuta and Melilla, and air arrivals with subsequent visa overstays. In 2024, over 45,000 migrants arrived via the Canary Islands route, though arrivals dropped sharply in 2025 due to increased border enforcement and international cooperation.

5. Recent Arrival Statistics and Pressure Points
Between 2022 and 2025, Spain experienced significant fluctuations in irregular arrivals. In 2022, approximately 63,970 irregular arrivals were recorded, with a peak in 2024 as the Canary Islands faced a migration crisis. Arrivals to the islands decreased by 62% in 2025, attributed to intensified cooperation with West African countries and expanded legal migration pathways. Despite the decline, Spain remains a primary destination for West and Central African migrants, accounting for 77% of arrivals from these regions in 2025.

6. Broader Implications and Public Debate
The regularisation policy has polarized Spanish society and politics. Business associations and migrant advocacy groups support the measure for its potential to address labor shortages and promote integration. However, public opinion is divided, with concerns about the impact on public services and social cohesion. The debate over the true number of beneficiaries and the policy’s long-term effects continues to shape Spain’s migration discourse and may influence future electoral outcomes.

 

Conclusion
Spain’s 2026 regularisation of undocumented migrants represents a significant and contentious shift in migration policy. While the government’s estimate of 500,000 beneficiaries is disputed by independent institutions and opposition parties, the initiative reflects both the scale of irregular migration and the urgent need for pragmatic solutions. The policy’s implementation and contested scope underscore ongoing tensions in Spain’s approach to migration, integration, and social cohesion.