Spain's Trans Law Reaches the Constitutional Court — Even as Congress Moves to Jail Conversion Therapists

Earlier this year, Spain did something no country had managed in a decade: it knocked Malta off the top of ILGA-Europe’s Rainbow Map to become the continent’s highest-scoring nation for LGBTQ+ law and policy. It is a title Spain earned the hard way — through gender self-determination, a national trans strategy, an independent equality authority, and free transition-related care in the public health system. But being number one has not bought Spain a quiet year. In the summer of 2026, the country’s landmark trans law is being fought over in the courts, while its parliament is moving to close one of the last gaps in its protections.

The law under fire

The 2023 Ley Trans is one of the most far-reaching gender-recognition laws anywhere. It lets adults change the sex marker on their documents through a simple administrative declaration — no medical diagnosis, no hormone requirement, no judge. For trans Spaniards, it ended a humiliating gatekeeping process that had treated being trans as an illness to be certified.

That self-determination model is exactly what the political right wants dismantled. The far-right Vox party has been open about its goal of repealing the Ley Trans entirely, and the center-right Partido Popular has pursued a constitutional challenge focused on the law’s provisions for minors and the age at which a young person can declare their gender. The core of their argument is that sex is immutable and that the state should not allow legal gender change on the basis of declaration alone. Spain’s constitutional judges are now weighing those questions — and a ruling that narrowed the law would ripple across a Europe that has increasingly looked to Madrid as the standard-setter.

It is worth being precise about what is and isn’t at stake. A constitutional challenge is not a repeal, and the Ley Trans remains fully in force while the court deliberates. But the case matters because it tests whether self-determination can survive contact with a hostile legal argument — and because the outcome will be cited far beyond Spain’s borders.

The postcode lottery

Even with the strongest law on the books, being trans in Spain still depends heavily on where you live. Healthcare is administered by the seventeen autonomous communities, and the quality of gender-affirming care varies dramatically from one region to the next. In communities where Vox holds influence — Castilla y León among them — there are no firm guarantees that trans minors will be able to access care, with decisions effectively left to individual family doctors. Madrid has moved to standardize care nationally through a draft decree that would require every region to fund gender-affirming treatment, but the patchwork it is trying to fix is precisely the terrain on which the political fight is being waged.

This is the paradox of Spanish LGBTQ+ life in 2026: a country that leads Europe on paper, where a trans teenager’s actual experience can still hinge on the party running their regional government.

A crime, not just a controversy

Against that backdrop, there was a genuine breakthrough in late June. On 25 June 2026, Spain’s Congress voted 178 in favor of reforming the Penal Code to make conversion therapy a criminal offense. If the reform completes its passage, Spain would join the short list of countries where attempting to change or suppress someone’s sexual orientation or gender identity could carry a prison sentence — a meaningful escalation from the administrative fines that most conversion-therapy bans rely on.

The significance is more than symbolic. Criminalization changes the calculus for the practitioners, clinics, and religious organizations that have quietly run these practices, and it gives survivors a route to justice that fines never provided. For a country simultaneously defending its trans law in court, the vote was a reminder that the direction of travel in Spain is still, on balance, forward.

Why this matters beyond Spain

For those of us who spend our lives moving around Europe, Spain functions as a kind of bellwether. When Madrid advances, it gives cover to reformers in Lisbon, Ljubljana, and beyond; when Madrid is forced onto the defensive, the anti-gender movements elsewhere take note. The two stories unfolding this summer — a trans law on trial and a conversion-therapy ban with teeth — are really the same story told from both ends. They show a country that has built the best legal framework on the continent, and a domestic opposition determined to prove that no framework is ever truly settled.

The Constitutional Court’s eventual ruling will tell us which way the wind is blowing. Until then, Spain remains what it has been all year: the country the rest of Europe is watching.