Before a rent review
Run the national rent-cap calculator (2% or CPI). People still search RPZ for the same tool. Confirm the current rule on rtb.ie.
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Core Features
Rent-cap calculator
National rent cap for Ireland (2% or CPI). People still search RPZ — same calculator.
Last updated 19 September 2026
What this tool does
From 1 March 2026 Ireland uses a national rent cap, generally the lower of 2% or CPI. Confirm the current rule on rtb.ie. Type the rent you charge today and, if you have looked it up, the CSO CPI figure. Export a notice draft. Stay compliant with RTB rules.
What you can do
- National 2% or CPI arithmetic
- RPZ remains a search synonym for the same tool
- A 90-day notice template you edit
- Links to rtb.ie
- Store the draft next to the property
- Public calculator at /tools/rent-cap — no account needed
How the rent-cap calculator works
- 1
Enter the property address
Open the property record or the public calculator. Confirm current rent-setting rules on rtb.ie.
- 2
Enter current and proposed rent
The tool shows the percentage change. You decide whether that is allowed.
- 3
Read the figure
The helper uses the lower of 2% and CPI when you type a CPI figure. Confirm on rtb.ie.
- 4
Export a draft notice
A template you can edit and keep with the tenancy.
- 5
Keep the record
Store the draft and the date next to the property. Stay compliant with RTB rules.
How landlords use it
Several properties
Open each property record and run the calculator. Stay compliant with RTB rules.
New tenancy
Use listed-rent comps as a suggestion. You set the asking rent.
Questions
Is this still an RPZ calculator?
People still search RPZ. From 1 March 2026 Ireland uses a national rent cap — generally the lower of 2% or CPI. Confirm on rtb.ie. Same calculator.
What figures does the helper use?
Type the rent you charge today and, if you have looked it up, the CSO CPI percentage. The page does the sum.
Where is the public calculator?
https://smartrent.ie/tools/rent-cap — no account needed. Logged-in landlords can store a draft under Rent increases.
How do I stay compliant with RTB rules?
Use the calculator, the notice draft, and the reminder. Confirm current limits on rtb.ie.
Use Rent-cap calculator on a 14-day trial
Same tools on every plan. No card to start. Stay compliant with RTB rules.
Start 14-day trial