Illinois § 45-105

Full text of Illinois Illinois Compiled Statutes § 45-105, with citation guidance and answers to common questions.

§ 45-105.

Bid preference for Illinois businesses. (a) (Blank). (b) It is hereby declared to be the public policy of the State of Illinois to promote the economy of Illinois through the use of Illinois businesses for all State construction contracts. (c) A construction agency, as defined in Section 1-15.25, procuring construction services shall make reasonable efforts to contract with Illinois businesses. (d) Each construction agency shall submit a report to the Governor and the General Assembly by December 1 of each year that identifies the Illinois businesses procured by the construction agency, the primary location of the construction project, the percentage of the construction agency's utilization of Illinois businesses on the project as a whole, and the actions that the construction agency has undertaken to increase the use of Illinois businesses. (e) In procuring construction services for projects with a total value that exceeds the small purchase maximum established by Section 20-20 of this Code, construction agencies shall provide a bid preference to a responsive and responsible bidder that is an Illinois business as defined in this Section. The construction agency shall allocate to the lowest bid by an Illinois business that is responsible and responsive a bid preference of 4% of the contract base bid. This subsection applies only to projects where a business that is not an Illinois business submits a bid. (e-5) The chief procurement officer shall require at the time of submission of a bid, and may require at the chief procurement officer's option at any time during the term of the contract, that the bidder or contractor submit an affidavit and other supporting documents demonstrating that the bidder or contractor is an Illinois business and, if applicable, submit an affidavit and other supporting documents demonstrating that the bidder or contractor is eligible for a 4% bid preference under this Section. (e-10) If a contractor who is awarded a contract through the use of a preference for Illinois businesses provided false information in order to obtain that preference, then the contractor is subject to disciplinary procedures as identified in Section 50-65 of this Act. (f) This Section does not apply to any contract for any project for which federal funds are available for expenditure when its provisions may be in conflict with federal law or federal regulation. (g) As used in this Section, "Illinois business" means a contractor that is, for at least one year prior, operating and headquartered in Illinois, subject to applicable State taxes, and providing, at the time that an invitation for a bid or notice of contract opportunity is first advertised, construction services. "Illinois business" includes a foreign corporation duly authorized to transact business in this State that has a bona fide establishment for transacting business within this State where it is operating, headquartered, and performing construction or construction-related professional services at least one year before an invitation for a bid or notice of contract opportunity is first advertised. "Illinois business" does not include any subcontractors or businesses headquartered outside of the State that have an affiliated entity operating in the State. (Source: P.A. 103-570, eff. 1-1-24; 103-865, Article 35, Section 35-5, eff. 1-1-25; 103-865, Article 65, Section 65-5, eff. 1-1-25; 104-417, eff. 8-15-25.)

Frequently Asked Questions About Illinois § 45-105

What does Illinois Compiled Statutes § 45-105 cover?

Section 45-105 is part of the Illinois Compiled Statutes, the codified statutory law of Illinois. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Illinois § 45-105?

A common citation format is "Illinois Compiled Statutes § 45-105" (Illinois). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Illinois law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Illinois official source linked on this page or consult a licensed Illinois attorney.

How does Illinois § 45-105 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Illinois can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Illinois.