Hi there, regadvisors1,

I'd be glad to walk you through modifying schedule pay periods in QuickBooks Online Payroll.

The following steps listed below will guide you through the process:

Edit a pay schedule

1. Click Settings ⚙, then pick Payroll Settings.
   
2. Under Payroll and Services, click Pay Schedules.
3. Locate the pay period you want to modify, then click Edit.
4. Choose a pay period.
5. Enter all required fields.
   
6. Click OK.

Assign the pay schedule to an employee

1. Go to Workers from the left navigation bar, then Employees.
2. Click an employee.
3. Hit Edit Employee.
4. Click small arrow ▼ icon by How often do you pay [employee]?.
5. Set the employee's pay schedule, then select Done.

You can also refer to this page: Employee payroll schedules in QuickBooks Online Payroll Enhanced for more details includes the number of payout per year.

I'm always available here to answer your questions. Feel free to leave a comment below, and I'll get back to you.

Thank you and take care always!