Potential property buyers hoping the altered stage 3 tax cuts could help them borrow more money are being warned to temper their expectations, as the modest boost could be mostly eroded by a rising market and inflation. RateCity modelling shows a single person earning $100,000 would see their maximum borrowing capacity increase from $462,000 to $483,100 – or $21,100 more. A couple where one partner earned $100,000 and the other $65,000 would see a lift of $33,500, upped from $754,900 to $788,400.