Job Duties of a Payroll Clerk. Payroll clerks often enter employee and timekeeping information into computers. A payroll clerk assists in the process of making sure a company pays employees accurately and on time.Payroll clerks collect and organize time sheets and enter information related to employees and pay periods into a computer.ob Duties of a Payroll Clerk. Payroll clerks often enter employee and timekeeping information into computers. A payroll clerk assists in the process of making sure a company pays employees accurately and on time.