Tax Collection 1 Income Tax Income Category 2 Associated Entry Total Amount The amount of the total other Category 2 income determined from associated Australian Taxation Office provided worksheets and online tool entries. The associated entry amounts are not specified in other income fields on the income tax return. Income Tax Income Category 3 Adjustment Reason Code A code which represents the reason for adjustment of the total of category three other income. Income Tax Income Category 3 Associated Entry Total Amount The amount of the total other Category 3 income determined from associated Australian Taxation Office provided worksheets and online tool entries. The associated entry amounts are not specified in other income fields on the income tax return.