RPZ Rent Increase 2026: What’s the Maximum?

In Rent Pressure Zones, the maximum annual rent increase is the lower of 2% or the HICP (Harmonised Index of Consumer Prices). With HICP currently around 2–3%, the effective cap in most RPZs is 2%. Here’s how to calculate your exact allowable increase.

The Formula

Your new rent = current rent × (1 + lower of [2%, HICP at review date]). For example, if current rent is €1,800/month and HICP is 2.5%, the maximum increase is 2% = €36/month. New maximum rent: €1,836.

Is Your Property in an RPZ?

Most urban areas in Ireland are RPZs, including all of Dublin, Cork City, Galway City, Limerick City, and many commuter towns. Check the RTB’s online tool at rtb.ie to confirm your address.

Non-RPZ Properties

If your property is NOT in an RPZ, there is no cap on the rent increase — but you must still give proper notice, the rent must not exceed market rate, and you can only review rent once every 12 months (or 24 months for tenancies created since December 2021).