02/09/2026
Last week, Spain took a real step toward lobbying transparency. Last Tuesday, the Council of Ministers – not the Parliament – approved Royal Decree-Law 21/2026, regulating the transparency and integrity of lobbying activity, and it was published in the official state gazette (BOE) the next day.
What the decree actually does
- A mandatory register. Every interest group now has to sign up, listing the people working on its behalf, a detailed account of its influence activities, any staff who previously held public office, its internal compliance systems, and a running log of its contacts, meetings, and hearings with officials.
- Public, updated disclosure. That information has to live on each group’s own website and be reported to the Council for Transparency and Good Governance twice a year.
- Real penalties. Sanctions range from a warning up to €40,000 fines, and the most serious violations can mean losing your registration entirely or being barred from re-registering for five years.
- A revolving-door cooling-off period. Senior officials are now barred for two years after leaving office from working for interest groups tied to the area they oversaw in government.
Why now
As most EU member states, Spain has been considering regulating lobbying for over a decade. So why now and why by decree?
Here’s the political backstory: this decree fulfils a commitment PM Pedro Sánchez made in Congress after the Cerdán affair broke open in July 2025. Like most lobbying reforms, this one arrived after a scandal, not before one. Santos Cerdán, PSOE’s own organisation secretary, was accused, based on leaked audio and a Civil Guard report, of managing kickbacks tied to public-works contracts, alongside a former transport minister and his aide. Cerdán denied wrongdoing but resigned from the party, gave up his seat in Congress, and spent five months in pre-trial detention before being released in November 2025.
How did the lobbyists react?
Reaction from the lobbying profession itself has been positive, as it generally is when these laws recognise and legitimise the services provided in this space. APRI, the association representing institutional relations professionals, welcomed the decree; its president, Carlos Parry, called the regulation of interest groups “a matter of democratic quality.”
Testing it against the OECD’s own rulebook
The OECD has had international guidance on this since 2010: the 10 Principles for Transparency and Integrity in Lobbying. Lined up against them, Spain’s decree does well in some places and leaves real gaps in others – at least based on what’s been reported so far; the full legal text may fill in some blanks.
- Transparency (Principles 5–6): strong. A public, mandatory, regularly updated register is exactly what the OECD asks for. The decree reportedly also requires a “regulatory footprint” report showing who was consulted while a law was drafted – precisely the kind of disclosure the OECD singles out as best practice.
- Revolving doors (Principle 7): solid. The OECD specifically recommends cooling-off periods for officials leaving public service. Spain’s two-year bar on senior officials joining interest groups tied to their old brief matches that closely.
- Enforcement (Principle 9): the weak link. The OECD is explicit that rules alone aren’t enough; countries need properly resourced monitoring and enforcement, not just penalties on paper. A €40,000 fine looks tough, but the gap between announced sanctions and sanctions actually issued is where lobbying laws have historically failed, in Spain and elsewhere. Same concern as point 1 above.
- Fair, equal access (Principle 1): untested. The OECD’s first principle isn’t really about disclosure at all – it’s about making sure ordinary citizens and under-resourced groups get a fair shot at being heard, not just well-funded lobbyists. Nothing reported so far speaks to this. Transparency rules don’t fix it on their own.
- Periodic review (Principle 10): unclear. We don’t yet know if the decree includes a built-in review clause. Worth checking once the full legal text is public.
Why this matters and what to watch
- Will anyone check the paperwork? Groups have to file reports twice a year. Filing a report, and someone actually reading it, catching lies in it, and fining people who lie, are three different things. It’s not yet clear the transparency council has the staff or budget to do more than collect the filings.
- It only covers the national level. These rules apply to national government and Parliament. If you’re lobbying a regional government – Catalonia, Andalucía, Madrid’s own regional government – or a city hall, none of this applies. A lot of real influence in Spain happens outside the national ministries.
- It could disappear in a month. This wasn’t passed as an ordinary law – it was pushed through by decree because the government didn’t have the votes in Congress. Under the Spanish constitution, decree-laws must be ratified by Congress within 30 days, or they lapse automatically. Given how fractured Congress is right now, that’s a genuine risk
Bottom line
The Spanish lobbying law marks real progress, and it matches or it even exceeds OECD benchmarks on disclosure and revolving doors. But on the two things that actually decide whether this lobbying law makes a difference – capacity to enforce the law by monitoring compliance, and its political survival past the 30-day clock – the jury is still out.