The rules apply to any property with a dwelling on it (like a house or apartment) and bare land that can be used for residential property. It does not matter if you rent the property out long or short-term, use it for short-stay accommodation some or all of the time, or leave it vacant.
Time frames for the interest limitation rules
From 1 April 2025 you can claim 100% of the interest you incur.
1 April 2024 to 31 March 2025
You can claim 80% of the interest you incurred. It does not matter when you got the property or drew down the loan.
Past years
For your 2022, 2023 and 2024 tax returns, when you borrowed the funds affects if you can claim interest deductions.