For the taxable amount calculated in an employee's timesheet to be correct, the selections entered in the Employee Masterfile Tax tab (Payroll, Masterfiles, Employee Details, Maintain, Tax tab) need to be set correctly. The employee should have given you their details before you started paying them. See https://www.ato.gov.au/forms-and-instructions/tfn-declaration.
The related fields in the Tax tab will determine the tax calculation:
The Tax scale the employee will be using.
If Calculate Tax YTD is selected
If they have set a Tax Impost Details flag i.e.
Study and training support loan.
Include RESC.
Include reportable FB.
Tax-Free threshold claimed.
Their Residency Status.
In addition, the Pay Details tab of the Masterfile in Attache (Payroll, Employee Details, Masterfiles, Enquire, Pay Details tab), the selections made here will also affect the amount of tax calculated:
Pay Frequency.
Base Hours.
Rate of pay per Hour/Month/Week.
Annual Salary.
For more detailed descriptions on each of the items listed below, see: Attaché Payroll: Masterfiles help and user guides, specifically the Attaché Payroll Employee Details masterfiles (PDF).
In addition, when creating the timesheet, in the first screen of the Add/Modify Timesheets or Add/Modify Adjustments screens, you need to set the correct Tax Periods and Allow/Dedn Periods. For more information on these fields, see: Attaché Payroll: Transactions help and user guides, specifically the Timesheet transactions (PDF) and Payroll adjustments (PDF).
Once these details have been checked and tax amount is correct you can also check the tax tables for the pay frequency on the ATO website. See:
The ATO calculator: https://www.ato.gov.au/calculators-and-tools/tax-withheld-calculator to confirm they agree with what has been calculated in Attaché.
If you still believe the tax calculated is incorrect, please raise a new case online and reference the title of this article, and detail what you have checked already.