how to calculate your borrowing power?
['Borrowing capacity formula. Gross income – tax – existing commitments – new commitments – living expenses – buffer = monthly surplus. ... ', 'Calculating your gross income. ... ', 'Tax / Medicare. ... ', 'Negative gearing benefits. ... ', 'Your new mortgage. ... ', 'Your existing commitments. ... ', 'Your living expenses. ... ', 'The buffer.']