What Royal Decree-Law 2/2026 Changed for Property Buyers in Spain
While the international press covered a 100% tax that never became law, a different measure quietly did. Royal Decree-Law 2/2026 is in force, and it affects every purchase. The headline consequence: if you negotiate a price below the property’s cadastral reference value, you still pay transfer tax on the higher figure. On a hard-won €40,000 discount in the Comunidad Valenciana, that is €4,000 of tax on money you never paid.
The three things that changed
| Change | What it means in practice | Who it affects |
|---|---|---|
| Minimum tax base aligned to the cadastral reference value | ITP is calculated on the reference value or the purchase price — whichever is higher | Every resale buyer |
| Tighter non-resident reporting, including Modelo 210 timelines | Less room for late or loose filing; declarations well below reference value can trigger automatic review | Non-resident owners |
| Reinforced anti-money-laundering checks at the notary | Source-of-funds documentation scrutinised harder at deed stage | All foreign buyers |
A fourth strand expands tenant protections in long-term rental contracts. That matters if you intend to let the property, and we cover it briefly at the end.
The cadastral reference value — the part that costs money
This is the mechanism most foreign buyers have never heard of and most feel the effect of.
The valor de referencia is a figure the Dirección General del Catastro assigns to every property in Spain, updated annually. It is calculated statistically from actual notarised sale prices in the surrounding area — not from asking prices, and not from a visit to your specific property. It was introduced by Ley 11/2021 and has applied since 1 January 2022; RDL 2/2026 tightened how it is applied and the reporting around it.
Its function is to act as the minimum taxable base for:
- ITP — transfer tax on resale purchases
- ISD — inheritance and gift tax
The rule is simple and unforgiving: tax is calculated on the higher of the reference value and the price actually paid.
Worked example — the negotiation that costs you
A resale villa in Calpe. Asking price €520,000. Cadastral reference value €500,000. You negotiate well and agree €460,000.
| What you expect | What actually happens | |
|---|---|---|
| Agreed purchase price | €460,000 | €460,000 |
| Cadastral reference value | — | €500,000 |
| ITP taxable base | €460,000 | €500,000 The higher figure applies |
| ITP at 10% | €46,000 | €50,000 |
| Extra tax on money never paid | — | €4,000 |
You still saved €60,000 on the price and paid €4,000 more tax than the arithmetic suggested. The negotiation was worth doing. But the €4,000 should have been known before the offer, not discovered at the notary — and that is the entire practical point of this article.
The effect runs the other way too. If the reference value is €500,000 and you pay €560,000, tax is charged on €560,000. The reference value is a floor, never a ceiling.
The Constitutional Court has settled the question
The system was challenged on the basis that taxing someone on a value they did not pay departs from the constitutional principle of taxing real economic capacity.
In judgment STC 13/2026 of 12 February 2026, the Constitutional Court dismissed the challenge and upheld the reference value as a valid objective method for determining the taxable base. The Court found it bears a reasonable relationship to market value and serves legitimate aims — legal certainty, administrative simplification, and reducing the volume of valuation disputes.
The practical significance for a buyer is that this is now settled law rather than a contested experiment. Advice written before February 2026 that treats the reference value as vulnerable to a general constitutional challenge is out of date.
Check the reference value before you make an offer
The figure is published and obtainable in advance from the Sede Electrónica del Catastro, using the property’s cadastral reference. Any Spanish lawyer or gestor retrieves it in minutes, and so should any competent buyer-side adviser.
Knowing it before you offer changes three things:
- Your true all-in cost. A property whose reference value sits well above realistic market price carries a permanent tax premium. That is a legitimate reason to value it lower, or to walk.
- Your negotiating floor. Below the reference value, each additional euro of discount saves you a euro of price but no tax. The saving is real but thinner than it looks.
- Your risk of scrutiny. Transactions declared significantly below the reference value can attract automatic review by the Agencia Tributaria. That is not an accusation of wrongdoing — a genuine bargain is entirely lawful — but it is a process worth anticipating rather than meeting by surprise.
Where this matters most
Reference values are statistical. They fit ordinary properties in homogeneous areas well and fit unusual properties badly. On the northern Costa Blanca — where a cliffside villa, a village house and an inland finca can sit within the same statistical zone — the gap between the reference value and what a property is genuinely worth can be substantial in either direction.
This is why we pull the reference value on every property we shortlist for a client, before an offer is discussed.
Challenging a reference value
It can be done, and the order of operations is counter-intuitive: you pay first, then challenge.
- Pay the ITP as assessed on the reference value.
- Lodge a recurso de reposición against the assessment, or request a contradictory appraisal.
- Support it with an independent tasación from a registered valuer showing a lower market value.
- Wait. These processes run in months, not weeks.
Be realistic about the odds. Since STC 13/2026 the method itself cannot be attacked — only its application to your specific property. A challenge succeeds where there is something concrete and demonstrable: structural defects, a legal encumbrance, a genuine mismatch between the property and the statistical zone it sits in. It does not succeed on the argument that you simply paid less.
Given a valuation report costs several hundred euros and the process takes months, challenges are generally worth pursuing where the gap is large and evidenced, and generally not worth it for a few thousand euros of difference.
Modelo 210 and non-resident reporting
If you own Spanish property without being tax resident in Spain, you file Modelo 210 — whether or not you rent the property out, and whether or not it earns anything. RDL 2/2026 tightens the timelines and the tolerance around this.
| Situation | What you file | Practical note |
|---|---|---|
| Property empty or for own use | Modelo 210, imputed income | Due even with zero income. Typically €300–€800 a year on a mid-range Costa Blanca property for non-EU owners. |
| Property let out, EU/EEA owner | Modelo 210 on net income | 19%, with expenses deductible |
| Property let out, non-EU owner | Modelo 210 on gross income | 24% with no deductions. The single harshest rule for British, American and Canadian owners since Brexit. |
The tightened timelines make a gestor or asesor fiscal close to essential for non-resident owners — €150–€400 a year for a standard filing package, against penalties that comfortably exceed it. Full detail in our guide to property taxes for non-residents.
Anti-money-laundering at the notary
Source-of-funds verification at the deed stage is reinforced. For a legitimate buyer this is paperwork, not an obstacle — but unprepared paperwork delays completions, and completion dates in Spain have contractual consequences.
Assemble in advance:
- Evidence of the origin of the funds — sale of a previous property, investment liquidation, inheritance, savings accumulated from documented employment
- Bank statements tracing the money’s path to your Spanish account
- Tax returns from your country of residence
- Certified translations and apostilles where documents are not in Spanish
Funds arriving from a third country, a corporate vehicle, or an account in a jurisdiction other than your country of residence attract more questions. All are perfectly legitimate; all take longer. Start the file early.
If you intend to let the property
RDL 2/2026 also expands tenant protections in long-term contracts. If your plan includes letting, three points matter:
- Long-term tenancies are harder to end than most foreign owners expect, and getting harder
- Short-term tourist letting requires a regional licence (VUT in the Comunidad Valenciana) and is being restricted in a growing number of municipalities
- Non-EU owners are taxed on gross rental income at 24% with no deductions, which materially changes yield calculations
Anyone buying substantially for rental return should model the tax before the purchase, not after. The gross-versus-net distinction alone moves a headline 6% yield well below 5% for a non-EU owner.
What we do differently because of this
Three concrete changes to how we work with clients, offered so you can ask the same of whoever represents you:
- We pull the cadastral reference value on every shortlisted property before an offer is framed, and present the true all-in cost rather than the price.
- We flag properties where the reference value sits materially above realistic market value as carrying a structural tax premium — a genuine reason to reprice or to walk.
- We tell clients to open the source-of-funds file at the reservation stage, not when the notary asks.
None of this is exotic. It is the ordinary consequence of representing the buyer rather than the seller: the seller’s agent has no reason to tell you that your negotiation will not reduce your tax bill.
FAQ
What is Royal Decree-Law 2/2026?
Spanish legislation in force in 2026 that aligns the minimum tax base on property transfers more closely with cadastral reference values, tightens non-resident reporting obligations including Modelo 210 timelines, reinforces anti-money-laundering verification at the notarial deed stage, and expands tenant protections in long-term rental contracts. It is unrelated to the proposed 100% tax on non-EU buyers, which is not law.
What is the valor de referencia and how does it affect my tax?
It is a value assigned annually to every Spanish property by the Dirección General del Catastro, calculated statistically from notarised sale prices in the area. It sets the minimum taxable base for transfer tax and inheritance tax. Your ITP is calculated on the reference value or the price you paid, whichever is higher — so buying below the reference value does not reduce your tax bill.
Can I pay less tax by declaring a lower price?
No, and it would be unlawful to try. The reference value sets a floor beneath which the taxable base cannot fall, and RDL 2/2026 makes declarations significantly below it liable to automatic review by the Agencia Tributaria. Under-declaration in Spain carries tax penalties and potential criminal exposure. Any adviser who suggests it should end your relationship with them.
How do I find the cadastral reference value before I buy?
It is published and available in advance through the Sede Electrónica del Catastro using the property’s cadastral reference. Your lawyer, gestor or buyer-side adviser can retrieve it in minutes. Ask for it before you make an offer, not after — it changes what the property genuinely costs you.
Can I challenge the reference value?
Yes, but you pay first and challenge afterwards, via a recurso de reposición or a contradictory appraisal supported by an independent valuation. Since the Constitutional Court upheld the method in judgment STC 13/2026 of 12 February 2026, challenges must be based on your specific property — defects, encumbrances, a genuine mismatch with its statistical zone — not on the method itself or on the fact that you paid less. Given the cost and the months involved, it is usually worth it only where the gap is large and evidenced.
Is the cadastral reference value legal?
Yes. The Constitutional Court confirmed its constitutionality in STC 13/2026 on 12 February 2026, finding that it bears a reasonable relationship to market value and serves legitimate objectives of legal certainty and administrative simplification. Guidance written before that date which treats the system as constitutionally vulnerable is out of date.
Does this affect new-build purchases?
The reference value governs ITP, which applies to resale. New-build first transfers are subject to IVA at 10% plus AJD stamp duty at 1.5% in the Comunidad Valenciana, calculated on the transaction price. The reporting and anti-money-laundering elements of RDL 2/2026 apply to both. See our off-plan versus resale guide.
Do I still have to file Modelo 210 if my property sits empty?
Yes. Spanish law imputes a notional income to a non-resident’s property whether or not it is used or let, and Modelo 210 is due annually regardless. For a mid-range Costa Blanca property this typically runs €300–€800 a year for non-EU owners. RDL 2/2026 tightens the filing timelines, which makes engaging a gestor the practical choice for most owners.
Sources and further reading
- Boletín Oficial del Estado — official publication of Royal Decree-Law 2/2026 and Ley 11/2021
- Sede Electrónica del Catastro — look up the cadastral reference value of a specific property
- Agencia Tributaria — Modelo 210 obligations, deadlines and filing
- Tribunal Constitucional — judgment STC 13/2026 of 12 February 2026
Where to start
The practical takeaway is a single habit: get the cadastral reference value of any property before you discuss price. It costs nothing, takes minutes, and it is the difference between knowing what a purchase costs and finding out at the notary.
Read the full purchase cost breakdown · Read the non-resident tax guide · What happened to the 100% tax · Ask us about a specific property.