What is a basic payroll qualification?

Bit random this!
I'm completing my cost benefit analysis for my ICAS project. One of my recommendations is for the payroll clerk to be given the opportunity to study a formal payroll qualification. I need to give an approximate cost for this but am not sure what basic payroll qualifications are available and am going round in circles. Please can someone who is studying/has studied a payroll qualifiaction point me in the right direction?

Thanks!

p.s I've aleready consulted my trusty friend Google but as I don't know anything about payroll I haven't managed to identify an appropriate qualification!