Thanks for posting in the Community, jagercoatings!
You can allocate your super payment under the Superannuation Payable account when categorising them in QuickBooks Online. To verify if super payment needs a GST code, I recommend contacting the ATO or your accountant to make sure you're recording your transactions correctly.
Check this link to learn more about how to match payroll payments in QuickBooks: Matching payroll payments in QuickBooks Online.
Please know that you can always visit us if you need help managing your account in QBO.
