Thanks for asking us here in the Community, @rlh7499. I'll be your QuickBooks guide today. 

When moving files, your payroll information will also be moved to the new company. However, the details behind the transactions don’t convert. For example, the payroll item breakdown and employee year-to-date numbers.

In that event, you'll need to enter past year-to date payroll info for each employee.

Additionally, you'll need to setup your payroll in QuickBooks Online so you can start creating paychecks.

For further insights, you can check out this article to learn more about what you need to do after moving from QuickBooks Desktop for Windows or Mac to QuickBooks Online. 

Let us know again if you have additional concerns. We're always here to attend to your needs.