Fringe benefits that are deducted from employees pays should not be set up as a FBT Tax Certificate code in Attaché. The reason for this being that you will be reporting FBT for the financial year instead of the FBT year. Instead set the Tax Certificate Code as Include in Tax Certificate. The deduction amount will then be included as Other Salary Sacrifice in the Income Statement in Attache Online.
To set this up or check what is currently setup:
Go to Setups, Payroll, Deductions, Enquire/Modify.
Select your FBT Deduction Code.
Check the Tax Certificate Code field and update it to Include in Tax Certificate.
At the end of the financial year, you will need to enter the FBT as an Adjustment using an Employer Contribution code for the FBT amount for each employee, for the FBT year.
If Reportable Fringe Benefits (Exempt/Non-Exempt) is selected in the Attache Deduction setup screen (this is not recommended) then you will need to select Yes to 'Salary Sacrifice Other' in the STP Setup Deduction screen in Attache Online, for it to display correctly for the employee.
See: Process reportable fringe benefits payments.