sorry for long thread title, i have 2 ip, i live in 1 of them rent back 1 room but declared 50/50% on IO loan 300k so i only get 50% back on interest. but my wifes only works part time makes 10k a year and also helps me pay loan is there any way of getting that extra 8k threshold added to my deductibility ? i have income 56-60k p/a which includes half of that is rental income. oh my wife isnt on any of my loans either does that matter ?