Section 40 ILCS 5/18-133 - Financing; employee contributions(a) Effective July 1, 1967, each participant is required to contribute 7 1/2% of each payment of salary toward the retirement annuity. Such contributions shall continue during the entire time the participant is in service, with the following exceptions: (1) Contributions for the retirement annuity are not required on salary received after 18 years of service by persons who were participants before January 2, 1954.(2) A participant who continues to serve as a judge after becoming eligible to receive the maximum rate of annuity may elect, through a written direction filed with the Board, to discontinue contributing to the System. Any such option elected by a judge shall be irrevocable unless prior to January 1, 2000, and while continuing to serve as judge, the judge (A) files with the Board a letter cancelling the direction to discontinue contributing to the System and requesting that such contributing resume, and (B) pays into the System an amount equal to the total of the discontinued contributions plus interest thereon at 5% per annum. Service credits earned in any other "participating system" as defined in Article 20 of this Code shall be considered for purposes of determining a judge's eligibility to discontinue contributions under this subdivision (a)(2).(3) A participant who (i) has attained age 60, (ii) continues to serve as a judge after becoming eligible to receive the maximum rate of annuity, and (iii) has not elected to discontinue contributing to the System under subdivision (a)(2) of this Section (or has revoked any such election) may elect, through a written direction filed with the Board, to make contributions to the System based only on the amount of the increases in salary received by the judge on or after the date of the election, rather than the total salary received. If a judge who is making contributions to the System on the effective date of this amendatory Act of the 91st General Assembly makes an election to limit contributions under this subdivision (a)(3) within 90 days after that effective date, the election shall be deemed to become effective on that effective date and the judge shall be entitled to receive a refund of any excess contributions paid to the System during that 90-day period; any other election under this subdivision (a)(3) becomes effective on the first of the month following the date of the election. An election to limit contributions under this subdivision (a)(3) is irrevocable. Service credits earned in any other participating system as defined in Article 20 of this Code shall be considered for purposes of determining a judge's eligibility to make an election under this subdivision (a)(3).(b) Beginning July 1, 1969, each participant is required to contribute 1% of each payment of salary towards the automatic increase in annuity provided in Section 18-125.1. However, such contributions need not be made by any participant who has elected prior to September 15, 1969, not to be subject to the automatic increase in annuity provisions.(c) Effective July 13, 1953, each married participant subject to the survivor's annuity provisions is required to contribute 2 1/2% of each payment of salary, whether or not he or she is required to make any other contributions under this Section. Such contributions shall be made concurrently with the contributions made for annuity purposes.(d) Notwithstanding any other provision of this Article, the required contributions for a participant who first becomes a participant on or after January 1, 2011 shall not exceed the contributions that would be due under this Article if that participant's highest salary for annuity purposes were $106,800, plus any increase in that amount under Section 18-125.Amended by P.A. 096-1490,§ 5, eff. 1/1/2011.P.A. 89-136, eff. 7-14-95; 91-653, eff. 12-10-99.