Hi SteveM70
Thanks for your post. Generally speaking, reportable super payments need to be reported to the ATO through STP. To do this you would need to process a pay for the additional super contribution using the Employer additional superannuation payroll category and applicable ATO reporting category.
If you're not sure how your employee's additional super payment needs to be reported you will need to check with the ATO or your accountant.
Please let me know if you need further help.
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