Good day, TaxCatSC.
QuickBooks Online Payroll has an option to set up a prior payroll if you paid your employees in this calendar year. This is to ensure that data is accurate especially when filing the W-2s at the end of the year.
We won't be able to set it up if you already made a paycheck before you decided to add the past pay information. If you no longer have this option, you'll want to reach out to our Customer Support Team so they can enter it on your behalf. Just make sure that you have a copy of the accurate prior payroll data.
The new "Help" menu interface:
For the old "Help" menu:
You'll want to check these links. These will give you more info on how to set up your payroll.
Keep on posting here if you need anything else. Wishing you all the best!