Besides earning less money (which is a self defeating strategy) there are limited means by which you can legitimately reduce the tax you pay. You can reduce your taxable income by claiming allowable deductions, which will reduce the amount of tax you have to pay. Only claim genuine deductions for expenses you can document. The ATO has a deductions guide specifically for ADF members. Go to the ATO website and search ‘ADF members”. You may also find our tax time video useful.