Is your Spanish rent increase legal?
Flat Spain checks a rent rise against the IRAV, the index that caps annual increases on Spanish residential leases. There is no single "2026 rate": the index is published monthly, and the one that binds your lease is the value for the month your annual review falls in. The most recent published value is 2.47% (March 2026).
The most recently published value we have verified.
Why there is no “2026 rate”
Search for Spain’s rent cap in English and you will find at least three numbers presented as this year’s figure. They are not contradicting each other so much as quoting different months: the index is a monthly series, and whichever month a writer happened to check became “the 2026 IRAV” on their page.
The practical consequence is small per month and real per year. On a €1,100 rent, the gap between the lowest and highest values in circulation is around €40 a year — not ruinous, but enough that quoting the wrong one weakens your position in a conversation you were otherwise right about.
| Period | Index | On €1,100 rent | Note |
|---|---|---|---|
| March 2026 | 2.47% | +€27.17/month | The most recently published value we have verified. |
| 2025 average | 2.2% | +€24.20/month | An average across the year, not a cap for any single review. Quoted as if it were an annual figure more often than any other value. |
What the cap does not cover
The index caps increases on a habitual-residence lease. A contract written as temporada — seasonal — sits outside it, which is one of the reasons the seasonal framing spread so far. Catalonia changed the calculation on 1 January 2026 by presuming a seasonal contract is really a residential one unless the landlord can document the season; elsewhere in Spain it is still decided case by case from how the property is actually used.
So if your contract says temporada and the flat is your home, the increase is the second question. The first is what kind of contract you actually signed.
Frequently asked questions
What is the maximum my landlord can raise my rent in Spain?
The IRAV index for the month your annual review falls in. It is published monthly rather than annually, so the answer depends on your review month — 2.47% in March 2026, against a 2025 average of 2.20%.
Is there a single 2026 rent increase cap in Spain?
No, and that is the most common mistake in English-language coverage. The index is a monthly series. Pages quoting one annual number are quoting whichever month they happened to look at.
Does the cap apply to an 11-month temporada contract?
No. Seasonal contracts sit outside the residential rent-increase cap, which is part of why they spread. If your contract says temporada but the flat is your home, whether it is genuinely seasonal is the question to settle first.
My landlord asked for more than the index allows. What now?
Put the figures in writing: your current rent, the increase asked for, and the index value for your review month. Most disputes at this size end there. If it does not, the increase clause and the contract type are what a Spanish lawyer will want to see.
If the answer is “time to move”
Flat Spain searches five platforms at once, scam-screens every listing and returns a ranked shortlist — usually in minutes.
Start my searchInformation, not legal advice. Flat Spain re-checks the index monthly and publishes every value it uses on the IRAV figure page.