New Rules from March 2026

Rent Increase Calculator

Calculate the maximum rent increase you can apply under Ireland's new CPI or 2% cap. Updated for the March 2026 national rent control rules.

Current Tenancy Details

Current Monthly Rent

€

Date Rent Was Last Set (or tenancy start date)

Current CPI Annual Rate (check CSO.ie for latest)

As of early 2026, Irish CPI is approximately 1.5–2.0%. Check cso.ie for the current figure.

Is the property a new apartment? (commenced after 10 June 2025)

Your Maximum Allowed Increase

New Maximum Monthly Rent

€1,626

CPI cap applied (1.6% < 2%)

Current rent€1,600/mo

CPI rate1.6%

2% cap2.0%

Rate applied (lower of CPI or 2%)1.6%

Maximum increase per month€26

Maximum increase per year€307

Earliest you can apply this increase1 March 2026

Notice required90 days

How to Apply the Increase

Check the date. You can only review rent once every 12 months from the date it was last set.

Use the RTB's official form. Download the rent review notice from rtb.ie. You must use their standard form.

Give 90 days' notice. The tenant must receive the notice at least 90 days before the increase takes effect.

Notify the RTB on the same day. You must inform the RTB of the rent review on the same day you notify the tenant.

Keep records. Retain copies of all notices, RTB correspondence, and CPI data used in your calculation.

New apartments exemption: Apartments with a commencement notice on or after 10 June 2025 are exempt from the 2% cap. Rent increases in these properties are capped by CPI only (no 2% ceiling). This exemption is designed to encourage new apartment development.

Are you fully compliant with all 2026 landlord requirements?

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Landlord reminder: A valid BER cert is required for all rental properties. Fines up to €5,000. Book at Homerating.ie from €150 + VAT. Energy upgrades via SEAI grants can also justify higher rents.

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Rent review templates for RPZ and non-RPZ, plus lease agreements and compliance calendar.

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Your Detailed Breakdown

Your detailed rent review breakdown will appear here once you enter your email below. This includes a full line-by-line analysis personalised to your inputs.

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Rent Increase Calculator

Current Tenancy Details

Your Maximum Allowed Increase

How to Apply the Increase

Your Detailed Breakdown

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