Illinois Compiled Statutes

40 ILCS 5/16-101 (2026)

Creation of system

✓ current as of May 2026
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(40 ILCS 5/16-101) (from Ch. 108 1/2, par. 16-101)
    Sec. 16-101. Creation of system. Effective July 1, 1939, there is created the "Teachers' Retirement System of the State of Illinois" for the purpose of providing retirement annuities and other benefits for teachers, annuitants and beneficiaries. All of its business shall be transacted, its funds invested, and its assets held in such name.
(Source: P.A. 83-1440.)

    
Notes of Decisions
Cited in 10 cases, 1999–2020 · leading case: In re Pension Reform Litig., 2015 IL 118585 (Ill. 2015).
In re Pension Reform Litig., 2015 IL 118585 (Ill. 2015). “(West 2012)); the Teachers’ Retirement System of the State of Illinois (TRS) (40 ILCS 5/16-101 et seq. (West 2012)); and the Judges Retirement System of Illinois (JRS) (40 ILCS 5/18-101 et seq.”
Kildeer-Countryside Sch. Dist. No. 96 v. Bd. of Trs. of the Teachers' Ret. Sys., 2012 IL App (4th) 110843 (Ill. App. Ct. 2012). “40 ILCS 5/16-101 (West 2008). To determine the proper annuity for a retiring teacher, retirement system staff must determine a member’s final average salary.”
Piccioli v. Bd. of Trs. of the Teachers' Ret. Sys., 2019 IL 122905 (Ill. 2019). “See 40 ILCS 5/16-101 et seq. (West 2016). Before 2007, article 16’s definition of “teacher” included officers or employees of statewide teacher organizations who had “previously established creditable service” by teaching and who elected to become TRS members.”
In re Pension Reform Litig., 2015 IL 118585 (Ill. 2015). “-2- Teachers’ Retirement System of the State of Illinois (TRS) (40 ILCS 5/16-101 et seq. (West 2012)); and the Judges Retirement System of Illinois (JRS) (40 ILCS 5/18-101 et seq.”
Piccioli v. Bd. of Trs. of the Teachers' Ret. Sys., 2019 IL 122905 (Ill. 2020). “See 40 ILCS 5/16-101 et seq. (West 2016). Before 2007, article 16’s definition of “teacher” included officers or employees of statewide teacher organizations who had “previously established creditable service” by teaching and who elected to become TRS members.”
Sartwell v. Teachers'Ret. Sys., 936 N.E.2d 610 (Ill. App. Ct. 2010). “40 ILCS 5/16-101 (West 2006). To determine the proper annuity for a retiring teacher, retirement system staff must determine a member's final average salary.”
In re Marriage of Roberts, 2015 IL App (3d) 140263 (Ill. App. Ct. 2015). “See 40 ILCS 5/16-101 (West 2012) (TRS created to provide retirement annuities and other benefits for teachers, annuitants and beneficiaries); see also 40 ILCS 5/14- 102 (West 2012) (purpose of State Employees’ Retirement System of Illinois is “to provide an orderly means whereby…”
Chicago Title Ins. Co. v. The Teachers' Ret. Sys. of the State of Illinois, 2014 IL App (1st) 131452 (Ill. App. Ct. 2014). “See 40 ILCS 5/16-101 (West 2010); see also Jones v.”
Toth v. Rich Twp. High Sch. Dist. 227 (N.D. Ill. 2018). “See 40 ILCS 5/16-101 et seq. Taking all of these allegations as true and construing them in plaintiff’s favor, as the court must, plaintiff has plausibly pled a property interest in the benefits that she was allegedly promised.”
People v. Majors (Ill. App. Ct. 1999). “There fore, an act that, among other provisions, amends the definition of "depen­dent beneficiary" under the Teachers Retirement System (40 ILCS 5/16-101 et seq . (West 1998)), requires screening of persons seeking admission to nursing homes to determine their need for services,…”
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