Open Enrollment

Service Information
2027 Open Enrollment Logo of different people of all ages

Open Enrollment is your one time of the year to verify your personal benefits information, make any changes you wish to your plan elections, enroll in a flexible spending account (FSA) and add or remove dependents. 

Enrollment requires using Employee Self-Service (ESS).You may also log in to ESS from a computer outside of the County's network. Required documentation must be scanned and uploaded to ESS in order to complete enrollment for dependents. For assistance with logging into ESS, please contact your agency's Help Desk.

Enrollment Resource Links

REMEMBER: Any changes you make to plan elections during the Open Enrollment period go into effect the start of the new plan years (December 1st for all benefits except FSA, which is January 1st). If you enroll in the health care or dependent care FSA, deductions will begin with the first pay check of the calendar year.

Important Documents

Here is a list of important documents with helpful information on enrollment: (Coming Soon)

*This benefit overview is intended for informational purposes only and does not constitute a contract or guarantee of coverage. Benefits may change at any time, and employees should always refer to the official plan documents for the most up-to-date information regarding their eligibility and coverage details.

Virtual Sessions

Virtual sessions will provide you with an overview of your benefit plan options, the Open Enrollment schedule and new plan features. 


Onsite Events

Staff will be onsite various Cook County locations during Open Enrollment to answer your benefits enrollment questions and provide you with more information around the process.

More Information on Benefits

In addition to providing employees with a challenging, rewarding environment for career and personal growth, we are proud to also offer some of the best benefits in the public sphere, including: