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RTB Rental Law Changes in Ireland (2026): A Simple Guide to the New Tenancy Rules

Ireland’s rental laws changed on 1 March 2026, introducing one of the biggest reforms to the rental sector in recent years.

When the legislation was first announced, it created significant confusion for landlords, tenants, and property managers. Even industry platforms and software providers had to issue temporary guidance while the final details were being clarified.

Now that the rules have been confirmed by the Residential Tenancies Board (RTB), it’s much easier to understand what actually changed — and what it means in practice.

This guide breaks down the new legislation in simple terms, so landlords and tenants can clearly understand the new system.

Why the New Rental Laws Initially Caused Confusion

When the legislation was first introduced, several key aspects were unclear.

There were questions around:

  • How the new Tenancy of Minimum Duration (TMD) would work
  • Whether existing tenants would be affected
  • How rent increases would be handled
  • Whether fixed-term leases still mattered

Property management software companies, including Letman developed by Topfloor Systems Ltd, even warned users not to generate certain leases until further clarification was issued.

This shows just how complex the transition initially appeared.

Fortunately, the final legislation now provides much clearer guidance.

The Biggest Change: The Tenancy of Minimum Duration 

The most important reform introduced by the legislation is the Tenancy of Minimum Duration (TMD).

For tenancies created on or after 1 March 2026, the TMD replaces the older tenancy structure.

Here’s how it works:

  • Once a tenant occupies the property, the tenancy effectively runs in six-year cycles
  • Tenants gain stronger legal security during this period
  • The landlord can only terminate the tenancy for specific legal reasons

This system is designed to provide tenants with greater long-term housing stability.

What Happens to Existing Tenancies?

One of the biggest misconceptions is that all tenancies moved into the new system immediately.

This is not the case.

Most existing tenancies continue under their current Part 4 tenancy structure.

For example:

  • Tenancies that started before 11 June 2022 remain under the older six-year Part 4 system until that cycle ends.
  • Only new tenancies created after 1 March 2026 fully operate under the new TMD structure.

This transitional system helps avoid disruption for existing landlords and tenants.

A New Requirement: Notice of Rent Setting

Another important administrative change is the introduction of a Notice of Rent Setting.

At the start of every tenancy, landlords must now:

  • Provide a formal notice confirming the rent level
  • Supply this notice to the tenant
  • Submit it to the Residential Tenancies Board

This requirement improves transparency around how rents are set at the beginning of a tenancy.

Do Fixed-Term Leases Still Matter?

Fixed-term leases can still be included in tenancy agreements.

However, under Irish tenancy law, the legal protections provided by statute take priority over lease terms.

This means:

  • A fixed-term clause does not override tenant protections
  • The tenancy rights created under law still apply

Because of this, some industry guidance has suggested that fixed-term clauses may now have limited practical impact in many cases.

When Can a Landlord End a Tenancy?

Under the new rental legislation starting 1 March 2026, tenants will have stronger security in their homes. Most new tenancies will operate under a Tenancy of Minimum Duration, which runs in six-year cycles.

This means landlords can only end a tenancy for specific legal reasons — and the rules now depend on whether the landlord is considered a small landlord or a large landlord.

Small Landlords vs Large Landlords

The new rules divide landlords into two groups:

Small landlords have more flexibility, while large landlords face stricter rules when it comes to ending tenancies.

Small Landlords (3 or Fewer Tenancies)

Small landlords can end a tenancy during the six-year period, but only for certain reasons.

These include:

  • Tenant breach of obligations (for example rent arrears or anti-social behaviour)
  • The landlord needs the property for their own use or a family member
  • The landlord needs to sell the property due to financial hardship

At the end of the six-year tenancy cycle, small landlords can also end the tenancy for reasons such as:

  • Selling the property
  • Major refurbishment or renovation
  • Changing the use of the property

Large Landlords (4 or More Tenancies)

The rules are much stricter for landlords who own four or more rental properties.

Once the tenant has been in the property for more than six months, the tenancy can usually only be ended if:

  • The tenant breaches their obligations, such as not paying rent

Large landlords generally cannot end a tenancy in order to:

  • Sell the property
  • Move themselves or a family member into the property
  • Carry out refurbishment

In many cases, this means properties owned by large landlords would need to be sold with the tenant in place.

What the New RTB Rules Mean in Practice

For new tenancies from 1 March 2026

  • Tenancies operate in six-year cycles
  • A Notice of Rent Setting must be issued at the start
  • Tenancies can only be ended for specific legal reasons

For existing tenancies

  • Current rules remain in place
  • The new system will generally apply when a new tenancy begins

Benefits of the changes

While the new rules introduce more structure around tenancies, they also aim to make the rental market fairer, more transparent, and easier to understand for both landlords and tenants.

The legislation also improves oversight of the rental sector by allowing greater data sharing between the RTB and other agencies such as Revenue and SEAI. This helps identify unregistered tenancies and improve compliance with rental laws.

Does the new RTB legislation apply to existing tenants?

No. In most cases, existing tenancies continue under their current rules until their tenancy cycle ends.

What is a Tenancy of Minimum Duration?

A Tenancy of Minimum Duration (TMD) is a new tenancy structure introduced in 2026 that provides tenants with stronger security during a six-year tenancy cycle.

Do landlords still use fixed-term leases?

Yes, fixed-term leases can still be used, but they do not override statutory tenant protections under Irish law.

Final Thoughts

The Residential Tenancies (Miscellaneous Provisions) Act 2026 represents a significant shift in how rental tenancies are structured in Ireland.

While the early stages of the legislation created confusion, the final rules are now much clearer.

At its core, the reform aims to:

  • Provide greater security for tenants
  • Maintain clear rules for landlords
  • Improve transparency in rent setting

For landlords, property managers, and tenants alike, understanding these changes is essential as new tenancies begin under the updated framework.

At Martin Property Consultants, we are closely monitoring all updates from the Residential Tenancies Board to ensure our landlords and tenants remain fully compliant with the latest regulations. As the rental market continues to evolve, staying informed about legislative changes is key to managing tenancies smoothly and avoiding potential issues.

If you have any questions about how the new rules may affect your tenancy or property, our team is always happy to help.

Useful Links And Information

Some Information and Links that may be useful:

https://rtb.ie/wp-content/uploads/2026/02/New-Rental-Rules-Landlord-Overview.pdf

https://www.gov.ie/en/department-of-housing-local-government-and-heritage

publications/government-reforms-to-the-rental-sector-starting-1-march-2026/

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