KPERS is a defined benefit plan. Membership is mandatory for all employees in eligible positions regardless of age. Following one year waiting period, employees begin contributing at 4% of gross salary. KPERS is excluded from federal income tax. The university contributes 8.17% of your gross salary. You have the option to purchase service credits via the KPERS buyback process. Visit with the Human Resources Office for more information or e-mail that office at firstname.lastname@example.org.