South Dakota
Retirement System
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SDRS Overview

The South Dakota Retirement System (SDRS) is a cost sharing, multiple employer, public employee retirement system. SDRS provides retirement, disability, and survivor benefits for employees of the state of South Dakota and its political subdivisions. SDRS is a qualified defined benefit retirement plan under Section 401(a) of the Internal Revenue Code and is exempt from Federal income taxes.

The benefits are funded through member and employer contributions and investment income. SDRS benefits are based on the member's final average compensation, the member's years of credited service, and a benefit multiplier. Retirement benefits are payable for member's lifetime. Surviving spouse benefits are also available.

Members of SDRS include permanent, full-time employees of public schools, the State, the Board of Regents, city and county governments, and other public entities. For purposes of participation, permanent, full-time constitutes employees working 20 or more hours per week and at least six months per year. Public schools, cities, and counties may choose not to include certain full-time employees in the system.

SDRS includes three classes of members: Class A general members, Class B public safety and judicial members, and Class C Cement Plant members. (Class C Cement Plant members: Former members of the Cement Plant Retirement Plan were merged into SDRS effective April 1, 2014.)

SDRS is one plan with two different benefit designs. Class A and B members that joined SDRS prior to July 1, 2017 are Foundation members. Class A and B members joining SDRS on and after July 1, 2017, are Generational members.

Covered employees are required by statute to contribute a percentage of their salary to SDRS. All participating employers are required to contribute an amount equal to the members' contributions. Contributions are 6 percent of salary for Class A members, 8 percent for Class B Public Safety members, and 9 percent for Class B Judicial members.

The right to receive retirement benefits vests after three years of contributory service. All benefits receive an annual cost-of-living adjustment (COLA) between 0.5 percent and 3.5 percent. The process to determine the COLA considers affordability based on SDRS' Fair Value Funded Ratio and the annual inflation rate as defined by the Consumer Price Indes (CPI-W).

Foundation members
Normal retirement age for Class A and Class B Judicial Foundation members is age 65 (age 55 for Class B Public Safety Foundation members). The special early retirement option provides an unreduced benefit when specific combinations of age and credited service are met. Special early retirement is based on the Rule of 85 for Class A members, the Rule of 80 for Class B Judicial members, and the Rule of 75 for Class B Public Safety members.

Generational members
Normal retirement age for Class A and Class B Judicial Generational members is age 67 (age 57 for Class B Public Safety Generational members).

All retirement benefits that do not meet the above criteria for Foundation and Generational members may be payable at a reduced level.


Related Link:
SDRS Funding and System Management Policies
The South Dakota Perspective on Public Employee Retirement Benefits and the South Dakota Retirement System