Rules for Tenants and Landlords
Rent increases in Ireland are subject to national rent control rules. The rules changed on 1 March 2026, replacing the previous Rent Pressure Zone system with a national framework covering private tenancies and Student Specific Accommodation.
For most private tenancies, rent can generally be reviewed once every 12 months and increased by 2% or the rate of inflation measured by the Consumer Price Index (CPI), whichever is lower.
There are also specific rules covering new tenancies, market-rent resets, newly built apartments and Student Specific Accommodation.
This guide explains how rent increases work, what notice a landlord must give, when a rent can be reset to market level and what tenants can do if they believe an increase is not permitted.
Can a Landlord Increase Rent in Ireland?
Yes. A landlord can generally increase the rent in Ireland, but the increase must comply with the national rent-control rules and the correct rent-review procedure. For most private tenancies, rent can be reviewed once every 12 months and the increase is limited to 2% or the rate of inflation measured by the Consumer Price Index (CPI), whichever is lower.
The rules can differ depending on when the tenancy began and the type of property. For private tenancies created from 1 March 2026, a landlord can reset the rent to market level in certain circumstances, including at the end of a six-year tenancy cycle. This market-rent reset is not available for ongoing private tenancies that began before 1 March 2026. There are also separate rules for qualifying newly built apartments and Student Specific Accommodation.
A landlord must also follow the formal rent-review process. This includes calculating the permitted increase, serving the required rent review notice on the tenant and providing a copy to the RTB within seven days. The RTB says that failing to provide the notice to the RTB makes the rent review notice invalid.
How much can rent increase in Ireland?
For most private tenancies, rent can be reviewed once every 12 months.
The permitted increase is generally limited to 2% or the rate of inflation measured by CPI, whichever is lower.
The exact amount depends on the rules applying to the tenancy and the property. Landlords should use the RTB Rent Calculator when calculating an increase.
The national rules apply to private tenancies created both before and from 1 March 2026, although the rules on resetting rent to market level are different depending on when the tenancy began.
How often can a landlord increase rent?
A landlord generally cannot review the rent more than once every 12 months.
A valid rent review must follow the prescribed procedure, including giving the tenant the required notice and providing the information needed to explain how the new rent was calculated.
The RTB says a landlord must give the tenant at least 90 days’ notice before the new rent takes effect. A copy of the rent review notice must also be provided to the RTB within seven days.
If the required notice is not properly served, the rent review may not be valid.
What is a rent review?
A rent review is the formal process through which a landlord changes the rent during an existing tenancy.
The landlord must use the prescribed Notice of Rent Review and explain the new rent and how it was calculated.
For a standard rent review where the increase is subject to the national rent control limit, the landlord should use the RTB Rent Calculator.
The landlord must also provide details of three comparable properties from the RTB Rent Register where required under the applicable rules.
Rent Review Rules in Ireland
For most private tenancies, a rent can generally be reviewed once every 12 months. The increase is limited to 2% or the rate of inflation measured by the Consumer Price Index (CPI), whichever is lower.
A landlord must give the tenant at least 90 days’ notice of a rent review and send a copy of the rent review notice to the Residential Tenancies Board (RTB) within seven days of serving it on the tenant.
Different rules can apply to market-rent resets, qualifying newly built apartments and Student Specific Accommodation, depending on when the tenancy began and the type of accommodation.
What notice must a landlord give for a rent increase?
A landlord must give the tenant at least 90 days’ notice before the new rent becomes payable.
The notice must be served on the tenant and the RTB. The RTB states that the notice should be submitted to the RTB within seven days.
The rent review notice must use the prescribed format and include the information required under the rental legislation.
A tenant who receives a rent review notice should check:
- the current rent;
- the proposed new rent;
- the date the increase will take effect;
- how the increase was calculated;
- the information about comparable properties;
- whether the correct rent review procedure has been followed.
Can a landlord increase rent by more than 2%?
Not automatically.
For most private tenancies, the annual increase is limited to 2% or CPI, whichever is lower.
However, the rules contain specific circumstances where rent can be reset to market rent or where the 2% ceiling does not apply.
These circumstances are important because a tenant should not assume that every rent increase is subject to exactly the same calculation.
When can rent be reset to market rent?
The rules for resetting rent to market level depend on when the tenancy was created.
For private tenancies that began before 1 March 2026, an ongoing tenancy cannot simply have its rent reset to market rent at the end of a six-year period.
For private tenancies created from 1 March 2026, market-rent resetting is permitted in specific circumstances.
These include certain situations when a new tenancy begins and at the end of a six-year Tenancy of Minimum Duration.
A landlord cannot use a market-rent reset simply because the property could achieve a higher rent if the legal conditions for doing so have not been met.
What is market rent?
Market rent is the amount a tenant would reasonably be expected to pay for a similar property in a comparable area at the time the rent is being set.
Where a landlord is permitted to set or reset rent to market level, the landlord must be able to demonstrate that the new rent is not above the market rent for comparable properties.
The RTB Rent Register is used to identify comparable rents.
The RTB requires details of three comparable tenancies in the circumstances covered by the market-rent rules. The properties should be similar in size, type and character and located in a comparable area.
What are the rules for tenancies that started before 1 March 2026?
For an existing private tenancy that began before 1 March 2026:
- rent can generally be reviewed once every 12 months;
- the increase is limited to 2% or CPI, whichever is lower;
- the RTB Rent Calculator should be used to calculate the permitted increase;
- a landlord cannot reset the rent to market level simply because the tenancy has reached six years.
The RTB specifically states that the six-year market-rent reset does not apply to private tenancies that began before 1 March 2026.
What are the rules for tenancies that started from 1 March 2026?
For private tenancies created from 1 March 2026:
- rent can generally be reviewed every 12 months;
- the annual increase is generally limited to 2% or CPI, whichever is lower;
- market-rent resetting is possible in specific circumstances;
- a market-rent reset can occur at the end of a six-year Tenancy of Minimum Duration.
There are also restrictions on resetting rent following certain “no-fault” terminations.
For example, a landlord cannot simply end a tenancy for a permitted no-fault reason and then use that termination to automatically reset the rent to market level when the legal conditions prevent such a reset.
What happens when a tenant leaves voluntarily?
The circumstances in which the previous tenancy ended matter under the post-March 2026 rules.
A landlord may be able to set the rent at market level for a new tenancy where the previous tenant left voluntarily, breached their obligations or the property no longer met the tenant’s accommodation needs, subject to the applicable legal requirements.
Other circumstances can also qualify, including certain first-time tenancies, properties that have been vacant for the required period and qualifying substantial renovation.
Landlords must be able to demonstrate that the relevant conditions have been met.
What about newly built apartments?
There is a specific exception for qualifying new apartments where construction commenced from 10 June 2025.
For qualifying new private apartments, annual rent increases can be linked to CPI without the 2% ceiling applying during periods when CPI is above 2%.
The exemption is subject to specific requirements concerning the development and commencement of construction.
The RTB also provides separate rules for qualifying new Student Specific Accommodation.
What about student accommodation?
Student Specific Accommodation has its own rules.
From 1 March 2026, SSA rent can generally be increased once every 12 months by 2% or CPI, whichever is lower.
Market-rent resetting for SSA is subject to a separate timetable. The RTB states that SSA market-rent resetting can occur once every three years from 1 March 2029, subject to the applicable rules.
Qualifying newly built SSA can also be subject to the CPI-only annual increase rules where the relevant construction requirements are met.
What must a landlord include in a rent review notice?
A rent review notice should clearly state:
- the new rent;
- the date the new rent will take effect;
- the information required to explain how the rent was calculated;
- the relevant comparable-rent information where required;
- the information required by the prescribed RTB form.
For a standard capped rent review, the landlord should retain the RTB Rent Calculator calculation and relevant Rent Register information.
The RTB provides a prescribed Notice of Rent Review form, and failure to follow the required procedure can make a rent review invalid.
Can a tenant challenge a rent increase?
Yes.
A tenant can refer a dispute about a rent increase to the RTB if they believe the increase is unlawful or the rent review procedure has not been followed correctly.
A tenant who wants to dispute a rent review should generally refer the dispute to the RTB before the new rent becomes payable or within 28 days of receiving the rent review notice, whichever is later..
Possible issues include:
- the increase is above the permitted wamount;
- the rent was reviewed too soon;
- the landlord did not provide the required notice;
- the notice was not correctly completed;
- the landlord has incorrectly claimed an exemption;
- the market-rent reset does not meet the legal conditions;
- the comparable properties used do not support the proposed rent.
The RTB provides dispute-resolution services for rent-review disputes.
What if the landlord increases the rent illegally?
The RTB can enforce certain rental-law breaches.
The RTB identifies setting rent above the legal limit and failing to provide a rent review notice correctly among breaches that can be enforced. Its current enforcement information says a fixed payment notice of €200 can apply to each of those breaches, alongside other possible enforcement measures.
A tenant who believes a rent increase is unlawful should keep the rent review notice, previous rent information, correspondence with the landlord and any supporting evidence.
How to check whether a rent increase is correct
If you receive a rent increase notice, start by checking:
1. When was the rent last reviewed?
A rent review generally cannot take place more than once every 12 months.
2. What is the proposed increase?
Check whether it falls within the applicable national rent-control limit.
3. Was the correct notice given?
The RTB requires at least 90 days’ notice before a new rent takes effect.
4. Was the notice properly served?
The landlord must also provide the notice to the RTB within the required timeframe.
5. Is the landlord claiming a market-rent reset?
If so, check whether the tenancy and circumstances qualify.
6. Are the comparable rents appropriate?
Where required, the landlord must provide information on comparable properties using the RTB Rent Register.
7. Do you believe the increase is unlawful?
If so, consider referring the matter to the RTB before the relevant deadline.
Rent Increase Ireland: Key Points
For most private tenancies, the basic rules are:
| Issue | General rule |
|---|---|
| How often can rent be reviewed? | Once every 12 months |
| Annual increase | 2% or CPI, whichever is lower |
| Notice before increase | At least 90 days |
| RTB notification | Copy of rent review notice within 7 days |
| Pre-1 March 2026 tenancy | No six-year market-rent reset |
| Post-1 March 2026 tenancy | Market-rent reset possible in specific circumstances |
| New qualifying apartments | CPI-only annual increase rules may apply |
| Student Specific Accommodation | Separate rules apply |
| Dispute | Can be referred to the RTB |
These are general rules. The precise treatment of a tenancy depends on when it began, the type of accommodation, the circumstances surrounding the tenancy and whether a specific exemption applies.
Ireland Rental Market and Rent Prices
Rent increases are only one part of Ireland’s rental market.
The wider rental market can be followed through the M10news Ireland Rental Market Tracker, which brings together the latest available rental data and separates new-tenancy rents from existing-tenancy rents.
This distinction matters because the rent being paid by an existing tenant can be substantially different from the asking or agreed rent associated with a newly created tenancy.
Read more: Ireland Rental Market Tracker
Related M10news Guides
For more information about renting and tenancy disputes in Ireland:
- How to Challenge an Eviction Notice in Ireland
- How RTB Disputes Work in Ireland
- RTB Mediation vs Adjudication
- What Evidence Matters in an RTB Dispute
- Student Accommodation in Ireland: Rights and Rules for Students and Landlords
- Ireland Rental Market Tracker
Frequently Asked Questions
Can my landlord increase my rent every year in Ireland?
A landlord can generally review rent once every 12 months, subject to the applicable rules. For most private tenancies, the increase is limited to 2% or CPI, whichever is lower.
Can a landlord increase rent by 10%?
Not simply because the market rent has increased. For most annual rent reviews, the national rent-control limit applies. A higher market-rent figure may be relevant only where the rules permit the landlord to reset the rent to market level.
How much notice must I get for a rent increase?
The landlord must generally give at least 90 days’ notice before the new rent takes effect.
Can I challenge a rent increase?
Yes. A tenant can refer a dispute to the RTB where they believe a rent increase is unlawful or the required rent-review process has not been followed.
Can rent be reset to market rent after six years?
For private tenancies created from 1 March 2026, a market-rent reset can generally take place at the end of a six-year Tenancy of Minimum Duration, subject to the applicable rules. The six-year reset does not apply to private tenancies that began before 1 March 2026.
Does the 2% limit apply to every rental property?
No. There are specific exceptions, including qualifying newly built apartments and certain Student Specific Accommodation. Cost Rental and Approved Housing Body tenancies also have different rent-setting rules.
Where can I check the latest rent rules?
The Residential Tenancies Board provides the official rent-setting and rent-review guidance, including the Rent Calculator, Rent Register and prescribed rent review notices.
M10news will update this page when Ireland’s rental rules change.