I currently have 2 IP's and am paying P&I on both of them. They are both negetively geered and I can afford the repayments quite compfortably but was wondering if it works out better to swap to interest only. Fees are $300 and $125 to swap them over and I have an offset account on one of these properties. It seems worthwhile using my basic maths but was wondering how its treated when the interest only period ends and I then have to pay a slightly higher Principle repayment again? Is it still worthwhile knowing that in 5 years time I have to increase payments? Cheers.