If your personal services deduction amount exceeds your unreduced personal services income, then you can deduct the excess amount. For this purpose:
(a) your personal services deduction amount is the amount of deductions relating to your * personal services income worked out under step 1 of the method statement in section 86 - 20, increased by the amount (if greater than zero) worked out under step 4 of the method statement; and
(b) your unreduced personal services income is the personal services income that would have been included in your assessable income for the income year if there had not been any reduction under section 86 - 20.