New IBI for Tourist Homes in 2026: When It Can Increase by Up to 150%
No, your IBI does not automatically increase by 150% just for having a tourist home. However, Royal Decree-Law 29/2026 has opened the door for certain municipalities to apply a specific surcharge to tourist accommodations located in areas of strained residential markets.
The new article 72.4 ter of the Local Finance Law allows municipalities to apply a surcharge on the net IBI amount for residential properties intended for tourist accommodation, as long as they are in municipalities located in a strained residential market area.
The Three Levels of Surcharge
| Owner's Situation | Maximum Allowed Surcharge |
|---|---|
| A residential property intended for tourist accommodation | Up to 50% |
| Owner of two or more residential properties intended for tourist accommodation | Up to 100% |
| Owner of four or more residential properties intended for tourist accommodation | Up to 150% |
The Key: “Up to” Does Not Mean “It Will Be Applied”
The state regulation enables the municipality, but does not make the surcharge automatic. Several conditions must be met for it to appear on your bill:
- The property must be residential and intended for tourist accommodation according to applicable regional regulations.
- The municipality must be located in a strained residential market area according to Law 12/2023.
- The municipality must decide to apply the surcharge.
- The municipal tax ordinance must regulate the material and formal aspects.
It does not state that all tourist homes in Spain will pay 50%, 100%, or 150% more IBI starting today. If someone summarizes the change this way, they are omitting essential conditions.
Example: What It Could Mean in Euros
Imagine an annual net IBI amount of €800.
With a 50% surcharge: 800 + 400 = €1,200.
With a 100% surcharge: 800 + 800 = €1,600.
With a 150% surcharge: 800 + 1,200 = €2,000.
These are mathematical examples. The actual percentage will depend on the municipal ordinance and whether the legal requirements are met.
When Can It Be Applied?
Article 8 establishes effects for tax periods that begin after the entry into force of the Royal Decree-Law and with indefinite validity. The text itself comes into effect, in general, the day after its publication.
However, for the owner, the important practical date will be that of the ordinance of their municipality and its application to the corresponding tax period.
What Owners Should Do Now
- Check if your municipality is in a strained area.
- Review the municipal tax ordinances. This is where it will be specified whether the municipality uses this authorization.
- Count how many tourist properties you own. The tiers of 50%, 100%, and 150% depend on that number.
- Calculate the annual impact on real profit. IBI is a fixed cost: it affects even if occupancy decreases.
- Do not mix this surcharge with that of empty homes. The same article regulates different scenarios.
Why a Fixed Surcharge Can Hurt More Than a Commission
An OTA commission usually increases or decreases with bookings. An IBI surcharge, on the other hand, is an annual cost that can remain even if the accommodation has a bad season.
Therefore, its impact should be measured on profit, not on revenue.
If a property generates €8,000 in annual profit before IBI and its bill increases from €800 to €1,200, the increase of €400 does not represent “just a 50% increase in IBI”: it means a reduction of 5% of the annual profit in that example.
Should You Raise the Price Per Night?
Not necessarily. Spreading a higher fixed cost over the nights sold is one option, but if you raise rates without considering demand, you could lose bookings. The correct calculation is:
Additional annual cost ÷ actual nights sold = additional cost per occupied night.
This number allows you to decide whether to pass it on, absorb it, or offset it with savings and better distribution.
First check your municipality; then do the math.
The owner who panics over the “150%” without checking if the regulation applies to their property is making decisions based on fear rather than data. The correct sequence is: strained area → ordinance → number of properties → actual fee → impact on profit.
Frequently Asked Questions
Does the surcharge affect all of Spain?
No. The new 4 ter refers to tourist accommodations located in municipalities in strained residential market areas and requires municipal action.
When is it 150%?
The regulation allows for up to 150% when it concerns owners of four or more residential properties intended for tourist accommodations.
Is the municipality required to collect it?
No. The text states that municipalities may impose the surcharge and that the tax ordinance will regulate its application.
Is it calculated on the cadastral value?
The surcharge is expressed as a percentage of the net IBI amount, not as a direct percentage of the cadastral value.
Source and Methodology
Primary Source: BOE · Royal Decree-Law 29/2026, of October 6, Article 8, new Article 72.4 ter. Consult official text.
Gatavia · Question. Data. Accounts. Decide.