Social Security

Information for employers about being covered by a Section 218 agreement and supplying Social Security Coverage for some or all of their employees.

Wisconsin's 218 Agreement with Social Security

All employers that wish to take part in the Wisconsin Retirement System must join and be covered by a Section 218 Agreement, which is an agreement between the state and the Social Security Administration (SSA) to provide Social Security coverage for state and local government employees.

Employer News
Dec 16, 2024 8:00am

Social Security Wage Base Set to Increase for 2025

ETF provides updated Social Security and Medicare wage bases for 2025. This information applies to all WRS employers and all other public employers in Wisconsin that provide Social Security coverage for their employees under Wisconsin’s Section 218 Agreement. 

Webinar
Oct 21, 2025 1:00pm Event Open

Meet Security Health Plan

Join us for a free, 45-minute online session to learn about Security Health Plan during open enrollment. No travel needed. You’ll get the same helpful information you’d find at an in-person benefits fair, right from your home or office. This session is appropriate for all members, regardless of enrollment or employment type.

Video
7 minutes
Security Health Plan presentation title slide.

2026 Meet Security Health Plan

Learn about Security Health Plan for the 2026 plan year. Find out about key provider systems and service areas, member ID cards, member portals, and website enhancements and resources.