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TRS offices are closed for all official State of Illinois holidays.


Member Services Email & Phone Numbers 


When you email us, please include your full name, city and state of residence, and the last four digits of your Social Security number in your message. Please do not include confidential information in your email message since email submissions on this site are unsecured.

Call Center

For Springfield and Lisle: 
877-927-5877 (877-9-ASK-TRS)

Phone Hours

Monday through Friday; 8:30 a.m. to 4:30 p.m (central standard time)

EEO/ADA Issues

Click here to view ADA notice.

Telecommunications Device for the Deaf (TDD for the hearing impaired)

800-526-0844 (or 711)


Springfield and Lisle: (217) 787-2269 

Office of Legal Counsel: (217) 753-0967

Teachers' Retirement Insurance Program (TRIP)

My Benefits Marketplace: (844) 251-1777 
Central Management Services: (217) 782-2548 or (800) 442-1300

Other Department Phone Number and Emails 


888-678-3675, Ext. 2759

Employer Services




Media/Press Contact