We have recently migrated from Quickbooks Dekstop payroll to Quickbooks Online Payroll advanced edition. Our employees earn the same amount of salary every month. But I have been unable to set the monthly salary as a Primary pay category if it is fixed. So in pay categories I have tried to set it to be paid annually or monthly, instead of fixed. In both cases, when I run payroll, the system will show an hourly rate of pay and the number of hours in the month. It uses the hourly rate of pay and number of hours to calculate the salary for that month. Since the number of hours differ per month, because of the day count per month, the monthly salary shown on the payslip differs too.

Question: How can I set the monthly salary to be fixed every month throughout the year? (Except when a pay rise occurs, in which case the following monthly salaries will be increased to a new fixed amount) 

Ideally I don't want the system to attempt to use hourly pay. We don't use QBO timesheets, so hourly rates are not relevant to us.