Rent Review Calculator Ireland 2026

Once per year, by the lower of CPI inflation or 2%. With CPI at 3.4% (CSO, July 2026), the cap for standard tenancies is 2%. On a rent of 1,800 euro per month that is a maximum increase of 36 euro. Apartments and student housing in qualifying new developments follow CPI only.

The cap accumulates pro-rata. The 2% limb is 2% of the current rent for each year that has elapsed since the rent was last set, plus a proportional amount for any part year, without compounding. A landlord reviewing after 30 months can apply up to 5% under that limb. The increase is still limited by the actual CPI index movement over the same period if that is lower. This calculator computes both limits from your exact dates.

Yes. RPZs were abolished on 28 February 2026. From 1 March 2026 a single national system applies to every rented home in Ireland under the Residential Tenancies (Miscellaneous Provisions) Act 2026. The cap that used to apply only inside RPZs now applies everywhere.

The CSO Consumer Price Index (CPI). It replaced the EU harmonised index (HICP) that RPZ rules used. The 12-month CPI rate to July 2026 is 3.4%. Because that is above 2%, the binding cap for most tenancies is 2%. This page pulls the figure and the underlying index numbers directly from the CSO API every month.

Only for tenancies created on or after 1 March 2026, in three situations: when a new tenancy begins (unless it follows a no-fault termination), at the end of each 6-year tenancy cycle (3 years for student-specific accommodation), and where the dwelling had no tenancy in the previous 2 years (1 year for a protected structure). The sitting rent in a tenancy that began before 1 March 2026 cannot be reset to market rent except after a substantial refurbishment, but a new tenancy after 2 years of vacancy also starts at market rent.

Once in any 12-month period. The tenant must get a written rent review notice at least 90 days before the new rent takes effect. One exception: a tenancy that existed before its area was first designated a Rent Pressure Zone on 20 June 2025 keeps a 24-month interval for the first review after that designation, a rule the 2026 Act preserves.

The new rent amount, the date it takes effect, and three examples of comparable rents from the RTB Rent Register. From 1 March 2026 the notice must also be copied to the RTB on the same day it is served on the tenant, otherwise it is invalid.

Apartments and student-specific accommodation in developments with a commencement notice or 7 day notice to the building control authority dated on or after 10 June 2025 are a special category: rent increases follow CPI with no 2% cap. The category also covers 25%+ extensions and change-of-use works. All other properties, including older apartments, follow the standard lower-of-CPI-or-2% rule.

A small landlord has 1 to 3 tenancies; a large landlord has 4 or more, or is a company. The rent cap is identical for both. The difference is in ending tenancies: small landlords keep extra grounds such as family use or sale in hardship, while large landlords can only end a tenancy for tenant breach or where the property is no longer suitable for the household.

Yes. Since 1 March 2026 the cap applies nationwide, in every city, town, and rural area. Location no longer matters for rent reviews; only the tenancy start date and the property type do.

No. This is a free estimating tool from Rentalize that applies the published 2026 rules using official CSO index data. The RTB is the official source. Always confirm against the official RTB calculator and current guidance before serving a notice.