Disclaimer: The content of this article pertains to the altHR payroll module (not PayrollPanda). As of this date, the altHR payroll module has been discontinued as we form a new partnership with PayrollPanda to bring forth enhanced payroll solutions for our users.

We do not have recurring pay item feature to set (monthly) recurring pay items yet so alternatively this is the workaround on how you can do it. You will just need to keep a template (the import pay item's template) of the list of pay items that you will need every month and upload it monthly when you run your payroll. 

Here's how to bulk import pay items

Read more: 

How to add new pay items in payroll setting

How to delete pay items for an employee