Hello @GraceC 

Thanks for the advice. In the version of Quickbooks that I am using, the menu options are different to the ones that you have described. (Quickbooks Advanced Payroll)  However they are similar.

I have tried to adjust the Pay Category, Employee Pay Run Defaults and Pay Rates to be monthly. But unfortunately when salary is set as a Primary Pay Category, paid monthly or annually, the system populates the payslip with hourly units and pay per hour.

Due to rounding etc. the final salary does not match the fixed monthly salary that I want to appear.

Have a nice weekend.