Hi debm
Sorry to see that no one has offered assistance with your query. If you need to make the adjustment for a previous payroll year that has been finalized, I recommend checking with the ATO or an accounting advisor as you may need to do an amendment.
After doing that you would first need to remove the STP finalisation, then create a payrun to do the adjustment, then finalise the employee again.
Here are some detailed instructions on how to do this:
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