Illinois General Assembly

  Bills & Resolutions  
  Compiled Statutes  
  Public Acts  
  Legislative Reports  
  IL Constitution  
  Legislative Guide  
  Legislative Glossary  

 Search By Number
 (example: HB0001)
Search Tips

Search By Keyword

Illinois Compiled Statutes

 ILCS Listing   Public Acts  Search   Guide   Disclaimer

Information maintained by the Legislative Reference Bureau
Updating the database of the Illinois Compiled Statutes (ILCS) is an ongoing process. Recent laws may not yet be included in the ILCS database, but they are found on this site as Public Acts soon after they become law. For information concerning the relationship between statutes and Public Acts, refer to the Guide.

Because the statute database is maintained primarily for legislative drafting purposes, statutory changes are sometimes included in the statute database before they take effect. If the source note at the end of a Section of the statutes includes a Public Act that has not yet taken effect, the version of the law that is currently in effect may have already been removed from the database and you should refer to that Public Act to see the changes made to the current law.

40 ILCS 5/17-131

    (40 ILCS 5/17-131) (from Ch. 108 1/2, par. 17-131)
    Sec. 17-131. Administration of payroll deductions.
    (a) An Employer or the Board shall make pension deductions in each pay period on the basis of the salary earned in that period, exclusive of salaries for overtime, extracurricular activities, or any employment on an optional basis, such as in summer school.
    (b) If a salary paid in a pay period includes adjustments on account of errors or omissions in prior pay periods, then salary amounts and related pension deductions shall be separately identified as to the adjusted pay period and deductions by the Employer or the Board shall be at rates in force during the applicable adjusted pay period.
    (c) If members earn salaries for the school year, as established by an Employer, or if they earn annual salaries over more than a 10-calendar month period, or if they earn annual salaries over more than 170 calendar days, the required contribution amount shall be deducted by the Employer in installments on the basis of salary earned in each pay period. The total amounts for each pay period shall be deducted whenever salary payments represent a partial or whole day's pay.
    (d) If an Employer or the Board pays a salary to a member for vacation periods, then the salary shall be considered part of the member's pensionable salary, shall be subject to the standard deductions for pension contributions, and shall be considered to represent pay for the number of whole days of vacation.
    (e) If deductions from salaries result in amounts of less than one cent, the fractional sums shall be increased to the next higher cent. Any excess of these fractional increases over the prescribed annual contributions shall be credited to the members' accounts.
    (f) In the event that, pursuant to Section 17-130.1, employee contributions are picked up or made by the Employer or the Board on behalf of its employees, then the amount of the employee contributions which are picked up or made in that manner shall not be deducted from the salaries of such employees.
(Source: P.A. 101-261, eff. 8-9-19; 102-210, eff. 1-1-22.)