In-depth: Risk Sharing in Public Retirement Plans

Introduction

Nearly every state in recent years enacted reforms to pension plans within their purview. As a result, although most public employers in the U.S. have retained DB plans, in many plans, more risk has shifted from employers to employees.

The purpose of this paper is to increase knowledge and awareness of the wide variety of options that are currently being used to design and finance retirement benefits; it is not an endorsement of any particular plan design or feature. This paper describes risk-sharing features that are incorporated into public pension plans and provides case studies of specific plans that employ risk-sharing structures.

Date published

January 2019

Contact

Keith Brainard, Research Director
Alex Brown, Research Manager

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What’s New at NASRA: Employee Contributions to Public Pension Plans

Employee contributions remain a central part of public pension financing, and the way those contributions are structured is subject to change depending each states' governance rules. . NASRA’s 2026 updated brief finds median employee contribution rates of 6.2 percent of pay for employees who participate in Social Security and 9.0 percent for those who do not. For employees who do not participate in Social Security, the public pension often plays a broader role in retirement security, effectively providing two of the traditional three legs of the retirement stool rather than one.

Since 2009, 41 states increased employee contributions in at least one plan, while some states recently reduced rates for selected employees. Variable contributions are also becoming more common, with 26 plans in 17 states adjusting employee rates based on funding, plan costs, or other factors. The brief provides current trends and a state-by-state look at employee contribution requirements across public retirement systems.