What it is
Bill proposes a 50% tax on profits of large listed companies
It is a members’ bill. Introduced by parliamentary groups, the Senate, regional governments or citizens. It was introduced on 18 February 2025. Introduced by: Grupo Parlamentario Mixto.
Official title: Private member's bill on the Temporary Tax on the profits of large listed companies.
Source: Congreso de los Diputados, file 122/000168· updated 11 Nov
Automatic summary, not yet reviewed
- The bill would create a temporary tax, complementary to Corporate income tax The personal income tax (IRPF in Spain): what people pay on what they earn from work, business or savings., on the profits of companies included in the Ibex-35 index the previous year.
- The tax base would be the company's annual result, and the tax due would be calculated by applying a 50% rate, minus the corporate tax amount the company actually paid.
- Companies would have to file returns and self-assess electronically. They could pay the tax by handing over Spanish heritage assets or real estate that would become social housing.
- The tax would apply in 2025 to profits earned in 2024, and the Government could extend it beyond its first year.
Who it affects
- Ibex-35 listed companies: They would be subject to the new tax and required to file and pay.
- The Government: It could develop the rules and extend the tax by regulation.
- Spain's Autonomous Communities: They could receive all or part of the revenue within their funding system.
- Public housing: The public housing stock could receive real estate handed over by companies as payment.
Words worth knowing
- Hecho imponible
- The event that triggers the tax liability, here earning profits.
- Devengo
- The moment the tax is considered due, even if not yet paid.
- Base imponible
- The amount on which the rate is applied to calculate what is owed.
- Autoliquidación
- A return in which the taxpayer itself calculates and pays what it owes.
- Cuota íntegra
- The result of applying the rate to the base, before deductions.
- income tax
- The personal income tax (IRPF in Spain): what people pay on what they earn from work, business or savings.
It summarizes the text as it was introduced. It is written by artificial intelligence and may contain mistakes: the official text is what counts. Read the official text · How we make summaries
Where it stands
How far did it get?
It took 2 of 7 steps. It reached Admitted, and today it is unfinished.
- Introduced18 February 2025Someone registers the text in the Congreso.
- Admitted25 February 2025The Bureau of the Congreso accepts it and, for a members’ bill, the plenary decides whether to consider it.
- Amendmentsnot reachedGroups propose changes.
- Committeenot reachedA committee goes through the text in detail.
- Plenarynot reachedAll 350 deputies vote.
- Senatenot reachedThe Senate can pass it, amend it or veto it.
- BOEnot reachedIt is published in the Official State Gazette (BOE) and comes into force.
See the 6 official steps on a timeline
Was there a plenary vote?
We have no plenary vote linked to this law in the Congreso’s data.
What happens next
What happens now?
The legislature ended before it finished. To go on, someone would have to introduce it again in the new Cortes.
It has not been presented again yet.
Sources
Where does all this come from?
- Congreso de los Diputados, file 122/000168
Official title, type, author, dates and stage.
Retrieved 11 November 2026
- Congreso de los Diputados, procedure
The date of each step, with its official wording.
Retrieved 12 November 2026
- The data comes from the open files of the Congreso, the Senate and the BOE, unaltered.
- Each deputy’s province is the one of their seat on the day of the vote.
- We only say “passed” or “rejected” when the majority needed is certain; otherwise we say which side had more votes.