Claimable deductions on your tax return are highly dependent on which field of work your income is derived from (for example, if you work in hospitality, retail, agriculture, trade, defence, and so on). These occupations all have their own specific taxable deductions that are claimable at the end of the financial year.
Refer to these occupation and industry specific guides for more information about income, allowances and deductions you can claim for work-related expenses.