Most homeowners will not incur increases under the new Local Property Tax review, despite house price inflation of around 75% since the last valuation eight years ago, according to Revenue.

Katie Clair, manager of Revenue's LPT branch, said this was because of two reasons - the basic rate had "almost halved" from 0.18% to 0.1% and the bands had also been widened.

However, first-time buyers and new homes bought since 2013 – two groups previously exempt – will be liable for the tax, in a move which will bring more than 100,000 homes into the LPT system.

Ms Clair said Revenue is asking people to submit their revised property valuation by 7 November and they can pay then or set up an arrangement to pay.

"You can pay in full or on a phased basis," she told RTÉ's Claire Byrne.

She said once someone has a property, even if it is unoccupied, they are liable to pay property tax.

Read more:
Explainer: How to value your home for Local Property Tax
Q&A: What do changes to Local Property Tax mean for you

Properties exempt from LPT include those vacated for 12 months or more due to the occupant's infirmity, those built for an incapacitated individual as well as homes damaged by pyrite or that qualify for the defective concrete blocks grant scheme.

Ms Clair said the LPT is a self-assessed tax, calculated through an honest assessment by the property owner.

"If [Revenue has] any doubt or concerns in terms of that valuation, we will ask the property owner to forward the document on which the valuation is based.

Until now, local property tax was based on valuations from 2013 and homeowners are now required to revalue their properties based on the market value as of 1 November to determine the amount of LPT to be paid each year from 2022 until 2025.

They must submit that valuation to Revenue in your LPT return by 7 November and pay - or make arrangements to pay - the tax for 2022.

She said guidance on how you can value your home is available on Revenue's website where there is an interactive tool with a valuation map.

"It is also important to remember you are only required to value your property within a valuation band."

Ms Clair said if a person's honest assessment differs from online guides, they should reflect that in their valuation and keep the necessary documentation to support that.