How much can a landlord increase rent in Ireland from 1 March 2026?

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

The cap

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: old rules continue to apply.

Example

If CPI is higher than 2%, the cap is 2%: a rent of EUR 2,000 a month could rise by at most EUR 40 to EUR 2,040. If CPI is 1.5%, the cap is 1.5%: at most EUR 30, to EUR 2,030. This is arithmetic on the rule, not a statement of the current CPI figure.

Limits of this guide

This is a summary of the national rule as understood on 2026-10-04. It does not cover notice periods, how often rent can be reviewed, exemptions, or which tenancies qualify. Check the RTB for your tenancy. See also the rent pressure zones guide and average rent in Dublin.

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 for an area plus the rent-control summary, to compare your rent with the local average.
Free: /v1/rent-check?area=Dublin&beds=All&type=All, county-level rent check including the rent-control summary (20 calls/day/IP).
Machine-readable spec: /openapi.json. Docs: /docs.

Sources

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