Salary payroll

There isn't a way to do that QuickBooks using annual salary payroll items. In QuickBooks a salaried employee has one salary, which reflects US payroll regulations: Salaried employees have one fixed salary that is paid regularly for a period of work, like a week or two weeks or even a month.

You can split that salary up between different salary items, but the salary total will stay the same, which is the correct behavior, regardless of how time worked is allocated to the different salary items on the earnings table of the paycheck.