Tenant Rights about Rent Increases in Ireland

Moving In & Moving Out published July 05, 2025

As a tenant in the Republic of Ireland, understanding your rights can help you navigate common rental issues confidently. One key concern for renters is managing rent increases. We'll explore your rights under the Residential Tenancies Act 2004 (as amended) and what measures you can take if you encounter a rent increase.

Understanding Rent Increases in Ireland

The Residential Tenancies Act 2004 sets clear rules regarding rent reviews and increases. According to the legislation, a landlord can typically only increase rent once every 12 months, and written notice must be provided to the tenant 90 days before the new rent is due. The Act also outlines that any rent increase must be in line with market rent in the area.

What Constitutes a Valid Rent Increase Notice?

To ensure a fair process, a rent increase notice must:

  • Be sent in writing
  • Include the amount of new rent
  • State the date it will take effect
  • Clearly reflect the market rent

Landlords have to provide evidence of three comparable market rents in the area with the notice. If you believe a rent increase is unfair, you can challenge it.

Challenging a Rent Increase

If you receive a rent increase notice that you think is unjust, you have several options:

Ensure your landlord provides proof that the new rent aligns with local market rents. If not, consider submitting a dispute.

The Residential Tenancies Board (RTB) oversees issues between landlords and tenants, including disputes over rent increases. To formally dispute a notice, you can apply for adjudication or mediation through RTB.

Forms and Procedures

To challenge a rent increase formally, you'll need to submit the RTB1 Dispute Application Form. You can find and submit this form on the RTB website.

Frequently Asked Questions

  1. How often can my landlord increase the rent? In Ireland, your rent can only be increased once every 12 months, and you must receive a 90-day written notice.
  2. What can I do if I think a rent increase is too high? You can apply for a dispute resolution through the RTB if you believe the rent increase is not in line with market value.
  3. What should I check in a rent increase notice? Ensure it includes the new rent amount, effective date, and proof that the rent is aligned with market value.

Need Help? Resources for Renters

If you're a tenant dealing with rental issues, several key resources in Ireland can help:


  1. According to the Residential Tenancies Act 2004, tenants are entitled to challenge any rent increase that doesn't align with local market rents.
  2. The official body overseeing residential tenancy disputes is the Residential Tenancies Board (RTB).
  3. Housing (Standards for Rented Houses) Regulations 2019 provides the standards for leased properties in Ireland.
Bob Jones
Bob Jones

Editor & Researcher, Tenant Rights Ireland

Bob writes and reviews tenant law content for various regions. They’re passionate about housing justice and simplifying legal protections for tenants everywhere.