To claim HTB, you must:
To qualify, you must not have previously bought or built a house or apartment, either on your own or jointly with any other person. If you are buying or building the new property with other people, they must also be first-time buyers. If you have inherited or been gifted a property it will not affect your eligibility.
If you are buying the property, you must have signed a contract to buy that property on or after 19 July 2016. If you are self-building, you must have drawn down the first part of the mortgage on or after that date.
The contractor you are purchasing your home from must be approved by Revenue. You can check the list of approved developers and contractors to make sure that your developer or contractor is approved.