Staff who voluntarily terminate must submit a letter of resignation to their immediate supervisor with a copy to Human Resources. If an overpayment is reported in the current fiscal year, an agreement between the employee and the college will be reached in order to deduct any overpayment.The salary overpayment resulted because . ALL EXITING EMPLOYEES (FULL-TIME AND PART-TIME) MUST SUBMIT A WRITTEN. For assistance with an overpayment calculation, contact an Employee Services payroll counselor at 303-860-4200, option 2. This file contains a sample letter for notifying terminated employees about overpayment issues. If an employee's pay is not correct, an overpayment or an underpayment will result.