Plusvalía after the 2021 Constitutional ruling — are you owed a refund?

On 26 October 2021, Spain's Constitutional Court issued ruling 182/2021 and quietly invalidated the way every municipality in the country calculated plusvalía municipal — the local capital-gains tax that falls on the seller of a property. The ruling created a refund window for transactions that had already paid the tax, and a redesign deadline for the entire municipal formula.

Five years later, most foreign sellers who paid plusvalía between 2017 and late 2021 still do not know whether they are owed money, how much, or how to claim. This piece is the working playbook.

What plusvalía is, on one line

Plusvalía municipal is the tax levied by the town hall on the increase in the cadastral value of the land between the date you bought and the date you sold. It has nothing to do with the actual gain on the property; it is a notional, formula-based number. That is precisely what the Constitutional Court found unconstitutional.

The ruling — what was struck down

Ruling 182/2021 invalidated articles 107.1, 107.2.a) and 107.4 of the Local Tax Law (TRLRHL). The court's reasoning, in plain terms: the formula assumed there was always an increase in land value, and taxed an amount that did not depend on the seller's actual profit or loss. That violated the constitutional principle of economic capacity (Article 31.1 of the Constitution).

The practical effect:

• Any plusvalía liquidation that was not yet final on 26 October 2021 became challengeable.
• The Spanish government issued Royal Decree-Law 26/2021 nine days later (10 November 2021), introducing a new dual-formula system. From that date, plusvalía exists again, but recalculated.
• Liquidations from 26 October to 10 November fell into a brief gap with no valid law — these are pure refund cases.

Who can still claim a refund — the four-year clock

Spanish tax law gives you four years from the date the tax payment was made to challenge it (Art. 66 LGT). For plusvalía paid in the months before October 2021, the window is closing through 2025 and into early 2026. Today, the eligible cases are:

1. Plusvalía paid between October 2017 and October 2021, where you sold at a loss. The 2017 ruling 59/2017 already invalidated cases of clear capital loss. Combined with the 2021 ruling, these are the strongest cases. Refund rate near 100% if claimed in time.
2. Plusvalía paid in October–November 2021 (the "gap"). All cases in the legal vacuum window. Refund rate also high.
3. Plusvalía paid after November 2021 where the new formula was wrongly applied. The new dual-formula system has two methods (cadastral and real-gain) and the taxpayer can choose the lower. Many municipalities applied only the cadastral method by default. Refunds available where the real-gain method would have been lower.

The procedure, briefly

The claim itself is administrative, not judicial. Steps:

1. Recover the plusvalía liquidation document from the town hall — you would have signed it at notary or paid it directly.
2. Compile the supporting evidence — purchase deed, sale deed, both cadastral references, notary fees and any improvement work invoices that increase the cost basis.
3. Calculate the actual capital gain or loss and contrast it with the plusvalía paid.
4. Submit a solicitud de devolución de ingresos indebidos to the town hall that levied the tax. The standard term for the town hall to respond is six months.
5. If denied, escalate to recurso de reposición within one month, and to the contentious-administrative court if necessary. Most cases resolve at the first or second step.

The numbers

A typical Costa Blanca refund file in our practice:

Recovered amounts include legal interest from the date of payment to the date of refund — typically 3.0–4.0% per annum, which on a three-year file can add 10–15% to the principal.

The honest part

Not every plusvalía paid in this window is recoverable. If you sold at a clear gain, paid plusvalía under the post-November 2021 regime, and the cadastral method was the lower of the two, you have paid the right tax under the current law. The cases worth challenging are the ones above. The cases worth not challenging are the ones where the math says you owe what you paid.

A 30-minute review of the deeds and the liquidation tells us which you have. We do not bill for that review. We bill for the recovery if the file qualifies and you choose to proceed.