Rent increase limits in Ireland (rent pressure zones): the 2026 rules

As of 2026-10-04. Information, not legal, tax or financial advice.

The rule in force from 01/03/2026

From 1 March 2026, rent increases in most tenancies are capped at the lower of 2% a year and the rate of inflation (CPI). Properties first built/let after 10 June 2025 are limited to CPI. Tenancies now run for 6 years. Tenancies that began before 1 March 2026 keep the old rules.

• Cap: min(2%, CPI) per year.
• Properties first built or let after 10 June 2025: increase limited to CPI.
• Tenancy length: 6 years.
• Tenancies that began before 1 March 2026 keep the old rules.

Limits of this guide

This page summarises the national rule only. It does not list individual rent pressure zones or notice requirements; check the RTB for your tenancy. For what rents actually are, the paid rent check returns the CSO/RTB average rent for a county, town or Dublin postal district with 4- and 12-quarter trends. Source for rent data: CSO/RTB, licensed under CC BY 4.0.

Get it from the API

• Paid ($0.02 per call, USDC via x402 or MPP): /v1/rent-check?area=Dublin%204&beds=Two returns benchmark rent, 4- and 12-quarter trend and the rent-control summary for an area.
• Free: /v1/rent-check?area=Dublin&beds=All&type=All, county-level rent check with beds=All and type=All is free (20 calls/day/IP).
• Machine-readable spec: /openapi.json. Docs: /docs.

Sources

• RTB: rental law changes from 1 March
• CSO/RTB RIQ02 (rent data), CC BY 4.0

Summarised in our own words from the sources above. Figures can change; confirm with the source before relying on them.