Residential Tenancies Act 2026 Ireland

RENT REVIEWS & NATIONAL RENT CONTROL (2026)

A clear, landlord‑focused guide to rent reviews under Ireland’s updated rental rules from 1 March 2026. This page explains how rent can be reviewed, how increases are calculated, when rent may be reset to market level, and what notice requirements apply.

Helping Irish landlords navigate 2026 tenancy laws

"THE LANDLORD'S BIBLE 2026" - dECLAN KERR. 

REQUIRED READING FOR EVERY IRISH LANDLORD.

A clear, landlord‑focused guide to surviving Ireland’s fast‑changing rental laws. The Landlord’s Bible shows you exactly how to stay compliant, protect your position, avoid RTB disputes, and run a profitable tenancy under the 2026 reforms. This is the essential reference for every landlord who wants certainty, clarity, and a legally safe workflow in a system that keeps shifting.

1. Overview of the 2026 Rent Review System

Ireland introduced a national rent control system applying to most private tenancies and Student Specific Accommodation (SSA). Under these rules:

Rent may only be reviewed once every 12 months.
Any increase is limited to the lower of 2% or inflation (CPI).
Rent may be reset to market level only in specific circumstances.
Prescribed notice forms must be used for all rent reviews.
Certain categories (such as new apartments and SSA) have additional rules.

These rules apply to both existing and new tenancies, but some conditions differ depending on when the tenancy began.

2. Pre‑2026 vs Post‑2026 Tenancies

Tenancies are treated differently depending on whether they began before or on/after 1 March 2026.

Pre‑2026 Tenancies (Legacy Tenancies)

These are “legacy” tenancies that began before 1 March 2026.

Rent may only increase by the lower of 2% or CPI.
Rent cannot be reset to market level.
Rent reviews must follow the prescribed notice format.
Standard notice periods apply

Post‑2026 Tenancies (New Tenancies)

These are tenancies that began on or after 1 March 2026.

Rent may only increase by the lower of 2% or CPI.
Rent may be reset to market level in specific circumstances, including:
        1) At the beginning of a new tenancy (subject to certain restrictions).
        2) 
At defined tenancy cycle intervals.
Market‑rent resets require supporting evidence.
Rent reviews must follow the prescribed notice format.

3. Special Categories

Certain types of accommodation have additional rules under the 2026 system.


New Apartments (Constructed After 10 June 2025)

Annual rent changes follow inflation (CPI) only.
The 2% cap does not apply.
Rent may be reset to market level in specific circumstances.
Prescribed notice forms must be used.
The 2% cap does not apply.

Student Specific Accommodation (SSA)

Annual rent changes follow the lower of 2% or CPI.
Rent may be reset to market level once every three years, beginning in 2029.
Prescribed notice forms must be used.

4. Market‑Rent Resets

Rent may only be reset to market level in defined circumstances. These include:

At the beginning of a new tenancy (with certain exceptions).
At specific tenancy cycle intervals.
At defined intervals for SSA.

Where a market‑rent reset is permitted, the landlord must provide:

Evidence of comparable rents for similar properties.
A clear explanation of how the proposed rent reflects market levels.
All required information in the prescribed notice form.

Market‑rent resets do not apply to pre‑2026 tenancies.

5. How Rent Increases Are Calculated

Rent increases must follow the national rent control formula:

The increase must be no more than 2%,
OR no more than the rate of inflation (CPI),
Whichever is lower.

CPI figures must be taken from the official inflation index.
The calculation must be shown clearly in the rent review notice.

6. The Rent Review Process (Step‑by‑Step)

Step 1 — Confirm Eligibility

Determine whether the tenancy is pre‑2026 or post‑2026, and whether a market‑rent reset is permitted.

Step 2 — Calculate CPI

Use the official CPI figure and apply the rent control formula.

Step 3 — Gather Evidence (If Applicable)

If a market‑rent reset is allowed, gather comparable rents for similar properties.

Step 4 — Prepare the Notice

Use the prescribed rent review notice form.
Include all required information, including CPI calculations and comparables where relevant.

Step 5 — Serve the Notice Correctly

Follow the required notice period and service rules.
Retain proof of service and supporting documentation.

Mistakes & Errors Irish Landlords Cannot Afford

7. Notice Periods & Service Requirements

Rent review notices must comply with statutory notice rules. 

a) Minimum notice period: 90 days.

b) The notice must use the prescribed format.

c) The notice must include all required information.

d) The notice must be served using an accepted method.

e) Proof of service should be retained.

8. Required Documentation

Landlords should prepare and retain:

a) CPI calculations.

b) Comparable rent evidence (if applicable).

c) Completed prescribed notice form.

d) Proof of service.

e) Any supporting documents used in the calculation.

9. Common Mistakes Landlords Should Avoid

a) Using outdated rent review forms.

b) Applying market‑rent resets where they are not permitted.

c) Incorrect CPI calculations.

d) Missing or unsuitable comparables.

e) Serving notices incorrectly.

f) Not retaining evidence for potential disputes.

10. Get Your Rent Review Checked

WEB Lettings provides a full rent review compliance service, including:

a) CPI calculations.

b) Comparable rent analysis.

c) Market‑rent reset eligibility checks.

d) Preparation of prescribed notices.

e) Evidence packs for dispute resolution.

Important! Legal Disclaimer

This page provides a practical summary of Ireland’s rent review rules 2026 based on official guidance and public announcements. It is not legal advice. For full legal detail, refer to the governing legislation and official publications.

67 Key Questions To Ask

Inside my comprehensive guide on the landlord-agent relationship, you will find a wealth of valuable information to navigate every aspect of the process. Here's a snapshot of what the guide covers:

Risk Management, Not a Commodity: Property management is not a commodity – it’s risk management. Choose wrong and you expose yourself to avoidable costs, legal trouble, and operational chaos.
A Filtration System for Weak AgentsThese 67 questions are not a checklist. They are a filtration system that instantly separates disciplined operators from agents who are winging it.
Scrutiny Reveals the Truth: Strong agents welcome scrutiny. Weak agents resent it — and that reaction tells you everything you need to know.
Accountablility is Everything: Most agents hide behind ‘the team,’ which means nobody is accountable when something goes wrong.

Crafted by Declan Kerr with over twenty years of experience letting property as a landlord and agent this expert guide is your go-to resource for mastering the landlord-agent journey from start to finish. Take it. Use it. For Free.

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