Renting
Rent Increase Calculator
Work out the maximum amount your rent can legally increase by under Ireland's national rent control rules, in place since 1 March 2026.
Since 1 March 2026, almost every private tenancy in Ireland is subject to the same rent control rule: increases are capped once a year at 2% or the Consumer Price Index (CPI) inflation rate, whichever is lower. New-build apartments and student accommodation where construction started on or after 10 June 2025 are an exception — their rent can rise with full CPI, uncapped at 2%. Enter your current rent below to see the maximum legal increase.
Your tenancy
Latest CSO figure: 3.6% (May 2026). Check cso.ie for the latest release.
These qualify for an inflation-only cap with no 2% ceiling.
Market-rent resets aren't a fixed percentage — they depend on comparable rents, not the cap below.
Maximum legal increase
Capped increase
2.0%
Capped at the standard 2%
New monthly rent (max)
€1,530
+€30 / month
A rent review is due — it has been at least 12 months since rent was last set or reviewed.
Estimates only. This calculator is for general guidance and does not constitute financial, tax, or legal advice. Always confirm figures with Revenue, the RTB, your lender, or a qualified professional before making a decision.
Last reviewed: 17 June 2026. Sources: RTB — setting and reviewing private rents from 1 March 2026, CSO — Consumer Price Index.
How the cap works
The standard formula is straightforward: take the lower of 2% and the latest published CPI annual inflation rate, and apply that percentage to the current rent. Rent can only be reviewed once every 12 months. A landlord must send a rent review notice to both the tenant and the RTB on the same day, with the RTB Rent Calculator figures attached — if it isn't sent to the RTB, the notice isn't valid.
This calculator covers the standard annual-review case. It doesn't calculate market-rent resets, which depend on comparable rents rather than a percentage cap, or the rules for Approved Housing Body and cost-rental tenancies, which work differently.
Frequently asked questions
- How much can my rent legally go up by in Ireland?
- Since 1 March 2026, rent for almost all private tenancies and student accommodation can only be increased once every 12 months, by 2% or the rate of inflation (CPI), whichever is lower. This replaced the old Rent Pressure Zone system, which now applies nationwide rather than only in designated areas.
- Do Rent Pressure Zones still exist?
- The RPZ designation itself is no longer the relevant test — the same national cap now applies everywhere in the country. The exceptions that matter now are based on when the building was constructed (new-build apartments) and the circumstances under which a tenancy ended, not which part of the country the property is in.
- Why do some new apartments not have a 2% cap?
- Apartments and student accommodation where construction commenced on or after 10 June 2025 are exempt from the 2% ceiling — rent can rise in line with full CPI inflation instead, to encourage new supply. This calculator includes a toggle for that case.
- Can my landlord just reset my rent to 'market rate'?
- Only in specific situations — broadly, when a new tenancy starts after the previous tenant left by choice or breached the lease, or at the end of a 6-year tenancy cycle for tenancies starting on or after 1 March 2026. A landlord can't reset an ongoing tenancy that started before 1 March 2026 to market rent at all. Market-rent resets must be evidenced against comparable lettings on the RTB Rent Register, not calculated as a percentage.