How it works
Three steps, one register.
The law asks the same question of every rent: what do similar homes, registered with the RTB, let for. We ask it the way the RTB does and show the working.
1
Eircode
We find the electoral area, the BER and the floor area of the home. Those are the four things the register searches by.
2
The figure, free
Every registered tenancy of a similar home, new lettings apart from continuing ones, recomputed for your size and BER. Landlords see the figure the register supports and the three records behind it; tenants see the median, the most the register defends and where their rent sits.
3
The evidence
The three RT numbers the notice must quote, why those three, how the figure was reached, the register printout, and for landlords the RTB form filled in. That is the report.
Landlords and agents
The highest rent you can defend, not a guess.
- Letting an empty home. Three registered lettings of similar homes, recomputed for your floor area and BER: the most every one of them supports. That is your figure and your evidence.
- Reviewing a sitting tenant. The cap from the current rent (2% or inflation), the earliest date, and whether the market or the cap is the binding limit.
- The RTB form, filled in. Notice of Rent Setting or Rent Review with the rent, the rule and three RT numbers; you add the dates and sign.
- The official printouts. The register search with your three comparables outlined, and the RTB calculator when a cap applies.
The rules, in the order you meet them
- 01Before you advertiseMarket rent only in set cases. Otherwise the last rent plus 2% a year or inflation.
- 02The day the tenancy startsPrevious rent, previous RT number, the calculation and three comparables, in writing.
- 03Within one month€40, within a month of the start, then every year on the anniversary.
- 04While the tenant lives thereMinimum standards, repairs in reasonable time, entry only with permission.
- 05Once in 12 months90 days’ notice, three RT numbers, a copy to the RTB within 7 days.
- 06If the tenancy endsA reason the law allows, the right period, a copy to the RTB within 7 days.
All the landlord rules, step by step
Guides
- Rent a Room Scheme Ireland: €14,000 tax free in 2026, €16,000 from 2027, and what a room lets for
- Notice of termination in Ireland 2026: notice periods, valid reasons, the 7-day RTB copy
- RTB registration 2026: fee, deadline, late fees and fines
- Landlord obligations in Ireland 2026: a checklist
- Rent Pressure Zones in 2026: what changed when the whole country became one
Tenants
Above the market, or just above the median? It matters.
- The test the law applies. Market rent at the date your rent was set, from similar homes registered then. Above every one of them is a case; above most is an argument.
- Every comparable, with RT numbers anyone can check on rtb.ie, the three closest marked.
- What follows. The words for the landlord, the RTB dispute type, the amount paid above the range, or what to ask before you sign.
- Got a rent increase notice? The legal maximum, the 90 days, the overpayment and your 28-day deadline.
The rules, in the order you meet them
- 01Before you signThe previous rent and three comparables, in writing, for tenancies from 1 March 2026.
- 02The day you move inDeposit receipt, the rent setting information, contact details, dated photos.
- 03After the first monthAnyone can check by address. Your rights do not depend on it.
- 04When a rent increase arrives90 days’ notice, 12 months since the last one, 2% or inflation at most.
- 05If the rent feels too highRent can never be above market rent. Overpaid rent can be ordered back.
- 06When the tenancy endsAfter 6 months the landlord needs a reason. You give 28 to 112 days.
All the tenant rights, step by step
Guides
- Notice of termination in Ireland 2026: notice periods, valid reasons, the 7-day RTB copy
- How long can I stay? Tenant rights in Ireland after 6 months and after 6 years
- Rent Pressure Zones in 2026: what changed when the whole country became one
- RTB forms: which one for what, and what happens if you use the wrong one
- Rent Tax Credit 2026: €1,000 back, and why the RTB registration number matters
The report
Rent is tested against registered tenancies, not against opinion.
The figure is free. The report is what you hand over when someone asks how you got it. Since March the notice has to name three RT numbers, and an adjudicator who checks them will find the same homes we found. So the report shows exactly that: the three, why those three, the size and BER adjustments, and every other tenancy we looked at.
- 01The figure on page one, with the rule it rests on.
- 02Every comparable in a table, RT numbers unmasked.
- 03The RTB form prefilled, and the official register printout.
Price
€14.99 a report. No subscription.
The figure is free. Letting agents buy credit bundles with their own branding on every document.
Questions people ask
What is the RTB Rent Register?
A public register run by the Residential Tenancies Board since 1 March 2026. For any area it lists registered tenancies of similar homes with the rent paid, floor area, bedrooms, BER and the RT number. Since March every rent review and every new letting has to refer to it: the notice must cite three comparable tenancies by RT number.
How much can a landlord increase rent in 2026?
Nationally, by the rise in the Consumer Price Index since the rent was last set, or 2% a year pro rata, whichever is lower. Homes in new or extended apartment developments started after 10 June 2025 follow inflation only. A review is allowed once in 12 months, with 90 days notice on the RTB form, and the new rent may never be above market rent.
What happens if the notice has a mistake?
It is invalid and the increase does not take effect. Common faults: less than 90 days notice, no comparable RT numbers, wrong calculation, a copy not sent to the RTB within 7 days, or the registration not updated within a month. Since 14 September 2026 the RTB can issue fixed penalty notices for the last two.
Is this the RTB?
No. We are an independent service run by Avlas Digital. Every number we show is taken from public sources: the RTB Rent Register, the CSO price index and the SEAI BER register, and you can repeat each search on the official site. We fill in the official RTB form; you sign it and serve it.
I am a tenant. What can I do with this?
Enter your Eircode, your rent and the date you moved in. We compare the rent with every similar home registered with the RTB around that date, because that is how the law tests it, and say whether it was above the market. The report adds every comparable with its RT number, what follows (nothing to claim, an argument for the next review, or a case for a reduction with the amount paid above the range), and the words for the landlord. If you received a rent review notice, the same report checks the increase against the legal limit and gives you your deadline to dispute it.