I'd like to help you get started with QuickBooks Online, Medrano5331.
Let me first explain what happens when you move your file from the Desktop version to QuickBooks Online.
Some of the lists or reports may not be carried over due to feature differences. This includes some payroll information since QuickBooks Desktop has more payroll features.
The paychecks will be converted as regular checks, and QuickBooks Online imports the current year's details as lump sums. Although, if it doesn't come over, you'll have to enter the past year-to-date payroll info for each employee. Then, you'll still have to set up QuickBooks Online Payroll, so you can create paychecks.
Let us know if you have more questions. We're here to fill you in.