Spain has now run the SOCIMI reform experiment twice, and both results are on the record. In late 2021, a special 15% levy on undistributed profits entered into force — a real, enacted change to the vehicle’s economics, not a proposal. In November 2024, the governing coalition went further: PSOE and Sumar wrote the outright abolition of the SOCIMI regime into their tax package, proposing that these vehicles be taxed at the standard 25% corporate rate instead of their effective near-zero, on the stated argument that they “only pay 1% and haven’t improved housing supply.” On 21 November 2024, Congress killed it. The regime survived; a new bank tax passed in its place; PSOE broke its commitment to its own coalition partner.

That is the actual state of play, and it is more useful than the version most international investors are still underwriting, which treats SOCIMI reform as a future binary that might or might not arrive. It already arrived. Twice. Once it stuck, once it didn’t, and the sector is still standing. The question worth underwriting isn’t whether reform happens. It’s what the recurring near-miss does to capital, because that is the part that has been priced continuously since 2021.

Start with what the vehicle actually is, because the political rhetoric distorts it. A SOCIMI distributes at least 80% of rental profits and 50% of asset-sale gains, holds at least 80% of assets in eligible real estate, and lists on a Spanish exchange. In exchange it pays a 0% base corporate rate at the vehicle level, with taxation falling on shareholders through withholding — plus, since 2021, the 15% charge on any profits it retains rather than distributes. This is not a Spanish loophole. It is functionally the same bargain struck by the US (1960), the Netherlands (1969), France (2003), and the UK, Germany and Italy (all 2007): tax neutrality at the vehicle level in exchange for high distributions and listed transparency. The “1% tax” line is political framing of a structure that exists, in near-identical form, across every major European market Spain competes with for capital.

The proposals that keep resurfacing fall into three tiers, and they are not equally consequential. The first is distribution tightening — raising the 80% floor, shortening reinvestment windows, narrowing eligible assets. Operationally annoying, structurally survivable; the large players absorb it and the smallest delist. The second is deeper tax reform — a meaningful corporate rate at the vehicle level, of which the 2021 levy on undistributed profits is a first instalment. This is where the economics genuinely move, because it stacks on top of shareholder withholding and reopens the gap with France’s SIICs, German REITs and Dutch FBIs that kept the neutral structure. The third is portfolio restriction — barring SOCIMIs from residential rental in the name of affordability. This one is politically the most attractive and economically the most self-defeating, because institutional capital is among the largest potential funders of exactly the rental supply Spain is short of. Restricting SOCIMI access to residential removes tens of billions in potential investment from the segment that most needs it.

Here is what the market underweights. Investors keep modelling the reform as an event with a resolution date. It has no resolution date, because the recurrence is the feature, not the bug. The 2024 vote didn’t settle anything — it deferred. A coalition that committed to abolition in writing and then failed to deliver has neither closed the question nor answered it; it has simply demonstrated that the threat can advance to the floor of Congress and still evaporate, which is precisely the condition under which capital neither flees nor commits. It waits. And Spain has now shown, on the record, that it can generate that condition roughly once a legislative cycle without ever needing to pass anything.

The evidence of the waiting is not in price. Sellers are not accepting materially lower bids on prime Spanish assets, so the discount does not show up in transaction values. It shows up in volume, and in format. The clearest single data point is Lar España: in December 2024, weeks after the abolition debate, Hines and Grupo Lar took the listed SOCIMI private through a tender offer and squeeze-out, and it was excluded from the Spanish market in February 2025. That is the pressure valve nobody names. When the political target sits specifically on the listed vehicle, capital doesn’t leave the country — it leaves the exchange. It goes private, into structures with similar economics and a smaller target on their back. Every SOCIMI that goes private is a transfer of Spanish real estate from the transparent, regulated, publicly-visible format into the opaque one, achieved without a single reform passing.

The implications cut both ways, which is why this is a genuine variable rather than a directional bet. If Spain wanted the SOCIMI regime to keep funding institutional supply, the productive move is not to reform or abolish — it is to signal clearly that it won’t, so the framework can be underwritten with confidence and listed capital stops migrating to the private format. If Spain wanted to raise the sector’s tax contribution, the 2021 levy shows it can be done incrementally, without the capital flight the abolition rhetoric threatens. What Spain is actually doing is the third option: neither reforming decisively nor renouncing reform, and thereby keeping the recurring threat alive as a permanent, unpriced-into-price, priced-into-volume drag. The winners of that equilibrium are the private-capital platforms buying listed SOCIMIs at discounts the public market assigns and the private market doesn’t. The losers are BME, whose real estate segment keeps shrinking by exclusion, and the marginal institutional allocator who wanted listed Spanish exposure and now can’t find enough of it.

SOCIMI made Spain competitive for international real estate capital over the past decade. Whether it stays competitive is no longer a question of what Congress passes. It is a question of how long Congress can keep threatening to pass something and never doing it, and whether the listed market survives the wait.