Hello Vanessa03s,

Thanks for joining this thread. Are you referring to your unique software ID for your Single Touch Payroll? If so, you can get the information in your Payroll Settings. Here's how:

1. Click on the Employees tab.
2. Click on the Payroll Settings.
3. Click on ATO Settings.
4. Select Electronic Lodgement & STP tab.
5. From there you'll see your Software ID.

Also, you can check this article to learn more about How to set up Single Touch Payroll.

Message us back if you need more help with QuickBooks Online. I'll be around to help. Have a nice day!