Spain’s Migrant Permits Face EU Test

Spain has spent years living with a fact that many European governments prefer to keep in the shadows: a large number of undocumented migrants are already there, already working, already part of the economy. Madrid's answer was to bring many of them into the system. Now its Supreme Court is reportedly considering whether that answer needs to be tested in Luxembourg.

The question, if it is referred to the EU's Court of Justice, would go well beyond Spanish immigration policy. It would ask whether one member of the Schengen border-free travel area can grant residence permits to more than a million undocumented people without first settling what that means for every other country inside the same travel zone.

There is a necessary caution here. No official court order has appeared on Spain's judiciary website. The reported move comes from Spanish press accounts saying the court questioned whether residence can be granted "for the mere fact of irregular stay" and opened the way procedurally for a referral (El Mundo, El Español). Until that order is published, this is a judicial warning shot, not a confirmed legal battle.

What Spain did, and what EU law says

Spain's regularisation scheme closed for applications on 30 June. It offered a one-year renewable residence-and-work permit to undocumented migrants who were in the country before 1 January 2026. The government expected around 500,000 applications (RTÉ). More than 1.2 million people applied (Euronews).

EU law does not ban national regularisation outright. The Return Directive, the EU's common framework for dealing with people staying irregularly, makes return the default. But Article 6(4) allows member states to grant residence "for compassionate, humanitarian or other reasons" instead (Return Directive 2008/115/EC).

The legal issue is whether that exception can carry a broad legislative programme covering more than a million people, or whether it was meant for individual decisions made case by case. According to El Confidencial, the Supreme Court's reported language suggests it sees a possible collision with EU rules.

A referral under Article 267 TFEU, the treaty mechanism that lets national courts ask the Court of Justice to interpret EU law, would not by itself cancel Spain's decree. It would instead draw the legal boundary. Once Luxembourg answers, every court in the EU is bound by that interpretation (TFEU Article 267). That is why this matters beyond Madrid.

Why Berlin and Paris are watching

A Spanish residence permit does not give someone the right to work in Germany or France. But Schengen rules do allow permit holders to travel across the border-free area for up to 90 days in any 180-day period (Regulation (EU) 2016/399). Regularisation does not export a work permit, but it does change a person's legal status inside a shared travel space.

Germany sees the risk in onward movement: people regularised in Spain could enter legally for short stays, then overstay or look for informal work in a system already under pressure (Berliner Zeitung). France's interior minister, Bruno Retailleau, has gone further, accusing Pedro Sánchez of "clientelism" and pressing for Spain to be held accountable before its European partners (Le Figaro).

Spain's government presents the policy as practical rather than ideological. People already working informally should be paying taxes and receiving labour protections, instead of remaining in an economy that uses their work while denying their status (Emerging Europe). Whether regularisation encourages future irregular arrivals is still genuinely contested among researchers (Migration Policy Centre).

The questions no one is answering

The argument is heavy on sovereignty and light on evidence. No dataset shows how many people regularised in one Schengen state later move to another. No government criticising Spain has produced a costed, realistic return plan for the population Madrid is trying to document. The people least heard are those whose lives are being decided: applicants, employers who rely on their labour, and local administrations now processing the caseload.

If the Supreme Court sends the matter to Luxembourg, the Court of Justice will be setting a precedent for every member state facing the same trade-off. Spain wants to document workers already inside the country. Other governments want common rules that stop national decisions spilling across borders. Until that tension is resolved, Europe's border-free area rests on an assumption it has never properly tested: that each country controls who gets a residence permit, while every country absorbs what follows.