Here's a quick summary of the essentials. From 20 June 2025 all private tenancies and student-specific licences in Ireland are subject to Rent Pressure Zone (RPZ) rules. Rent increases are limited to 2% a year or the Harmonised Index of Consumer Prices (HICP) rate if that's lower. Landlords and tenants both need to check dates, run the official calculator and handle any notice in writing.

Quick-reference summary

Fast facts you can bookmark:

  • Coverage: All private tenancies and student-specific licences in Ireland from 20 June 2025.
  • Annual cap on increases: 2% or the HICP (whichever is lower).
  • Frequency: Rent increases may be applied at most once every 12 months for most tenancies. For tenancies already in place when an RPZ applies, the first permitted review may be 24 months after the last rent change.
  • Official checks and tools: gov.ie (Rent Pressure Zones page), The Housing Agency (housingagency.ie), the Residential Tenancies Board (RTB) at rtb.ie, and Citizens Information (citizensinformation.ie).
  • Use The Housing Agency RPZ calculator to work out exact allowed increases for a property.

Prerequisites — what you need before you start

First, gather these items to keep things simple and organized.

  • Full address of the rented property, Eircode if possible — that helps the RPZ map match the property precisely.
  • Start date of the tenancy and the date of the last rent review or last rent change (include any rent-free periods by date).
  • Current rent amount in euros — state exactly what the tenant pays after any agreed discounts or rent-free arrangements (for example: €1,200 per month, or €300 per week).
  • Copies of the tenancy agreement, any variation agreements, rent receipts or bank statements showing rent payments — keep digital copies (PDF, JPG) and printouts.
  • Access to the Housing Agency RPZ map and calculator at housingagency.ie, the gov.ie Rent Pressure Zones page and the RTB guidance at rtb.ie for forms and dispute procedures.

Step-by-step: check status and calculate a lawful increase

Whether you're a tenant or landlord, follow these steps in order.

  1. Confirm RPZ coverage for the property.

    All private tenancies and student-specific licences have been brought under RPZ rules from 20 June 2025. Still, confirm the exact property boundary on The Housing Agency RPZ map (housingagency.ie) or gov.ie to see when the address became subject to RPZ rules. Use the property search on The Housing Agency site — enter the address or Eircode and note the RPZ start date shown.

  2. Check timing rules for the tenancy.

    Find the last date the rent was changed — the statutory limit is that landlords may only increase rent once every 12 months for most tenancies. If the tenancy existed when the property first became subject to RPZ rules, the first permitted review may be 24 months after the last documented rent change. Record these dates in a spreadsheet so you don’t make a timing error.

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  3. Work out which cap applies: 2% or HICP.

    The cap is the lower of 2% and the HICP rate. The HICP is published by Eurostat and by the Central Statistics Office (CSO). To calculate, find the most recently published annual HICP rate (e.g. The annual percentage change for the relevant 12-month period), then compare it to 2% and take the lower figure.

  4. Calculate the permitted increase in euros.

    Use The Housing Agency RPZ calculator or do the math yourself: permitted increase = current rent × allowed percentage. Example 1: current rent €1,200 × 2% = €24 → new rent €1,224. Example 2: current rent €350 per week × 1.5% (if HICP is 1.5%) = €5.25 → rounded according to your billing period (weekly or monthly) and clearly recorded. Always show both the percentage and the euro change in any notice.

  5. Decide the effective date.

    Choose the earliest lawful effective date consistent with the timing rules. If the tenancy is subject to the 12-month limit, the effective date must be at least 12 months from the last increase. For tenancies where the first permitted review is 24 months, pick a date that meets that requirement. Put the effective date in the notice — write it as a day, month and year.

  6. Prepare the written notice.

    Draft a clear, dated, written rent increase notice. Include: landlord name and contact, tenant name, property address with Eircode, current rent, permitted percentage and how it was calculated (show HICP comparison if used), the euro increase and the new rent, the effective date, and a short statement that the property is subject to RPZ rules introduced 20 June 2025. Sign and date the notice and keep a copy.

  7. Serve the notice and keep proof.

    Serve the notice in writing. Methods commonly used are recorded post, courier with signature, hand-delivery with signed receipt, or email where the tenancy agreement allows electronic service. Keep proof — postal tracking numbers, delivery receipts, screenshot of an email plus delivery time. Log the date served; disputes often hinge on whether the notice was validly delivered.

  8. What if the tenant objects?

    If a tenant disputes the increase, the RTB handles rent dispute resolution and adjudication. Encourage mediation first. If the issue goes to the RTB, have your paperwork ready: tenancy agreement, payment evidence, the RPZ calculator output or working, and the notice served. The RTB’s website (rtb.ie) has the forms and the online dispute portal.

Tips for landlords and tenants

Taking small steps now can save you trouble down the road.

  • Use exact figures and two decimals when you calculate increases so there’s no ambiguity — for example, show €24.00 not €24.
  • Keep a dated rent ledger — rent receipts, bank lodgements, standing order confirmations. That proves the last increase date and the amount paid.
  • Check the HICP figure at the CSO (cso.ie) or Eurostat (ec.europa.eu/eurostat) before you calculate — HICP moves month to month and the annual figure decides the cap.
  • For student-specific licences, confirm whether the licence terms allow written notices by email. Many student lettings use fixed-term licence agreements; still the RPZ cap applies.
  • If you use an agent, confirm they follow RPZ rules — the responsibility remains with the landlord, legally.
  • When in doubt, run the Housing Agency RPZ calculator and keep the calculator result (screenshot or PDF) as part of the file.

Common mistakes to avoid

  • Miscounting the 12-month (or 24-month) restriction — check the exact date of the last increase on paper, not memory.
  • Using headline inflation instead of HICP — the RPZ cap uses the Harmonised Index of Consumer Prices, not every inflation measure you find online.
  • Failing to serve the notice in writing or not keeping proof of delivery — that’s the single most common grounds for a dispute.
  • Rounding errors that create a bigger increase than permitted — always show the calculation and round down if needed to stay within the cap.
  • Assuming student licences are exempt — they’re included if they’re student-specific licences falling under private rental rules.

Where to go for official forms and help

Key official pages and tools:

  • Gov.ie — Rent Pressure Zones page (search “Rent Pressure Zones gov.ie”).
  • The Housing Agency — RPZ map and calculator: housingagency.ie (search RPZ map or RPZ calculator on the site).
  • Residential Tenancies Board (RTB) — guidance, forms and dispute resolution: rtb.ie.
  • Citizens Information — clear practical guidance for tenants and landlords: citizensinformation.ie.

Related Articles

Wherever you stand — tenant or landlord — the rules are clearer now than they were. From 20 June 2025 RPZs apply nationwide, the annual limit is 2% or the HICP if lower, and rent reviews happen only once every 12 months in most cases (with certain existing tenancies allowed a first review at 24 months). Use the Housing Agency RPZ map and calculator, keep good records, serve a clear written notice with the calculation shown in euros and percent, and contact the RTB at rtb.ie if there’s a dispute.

This article was created with AI assistance.