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Illinois Compiled Statutes

810 ILCS 5/1-103 (2026)

Construction of Uniform Commercial Code to promote its purposes and policies; applicability of supplemental principles of law

✓ current as of May 2026
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(810 ILCS 5/1-103) (from Ch. 26, par. 1-103)
    Sec. 1-103. Construction of Uniform Commercial Code to promote its purposes and policies; applicability of supplemental principles of law.
    (a) The Uniform Commercial Code must be liberally construed and applied to promote its underlying purposes and policies, which are:
        (1) to simplify, clarify, and modernize the law
    
governing commercial transactions;
        (2) to permit the continued expansion of commercial
    
practices through custom, usage, and agreement of the parties; and
        (3) to make uniform the law among the various
    
jurisdictions.
    (b) Unless displaced by the particular provisions of the Uniform Commercial Code, the principles of law and equity, including the law merchant and the law relative to capacity to contract, principal and agent, estoppel, fraud, misrepresentation, duress, coercion, mistake, bankruptcy, and other validating or invalidating cause supplement its provisions.
(Source: P.A. 95-895, eff. 1-1-09.)

    
Notes of Decisions
Cited in 14 cases (4 in the last 5 years), 1993–2026 · leading case: In re Gen. Motors Corp. Dex-Cool Prods. Liab. Litig., 241 F.R.D. 305 (S.D. Ill. 2007).
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In re Gen. Motors Corp. Dex-Cool Prods. Liab. Litig., 241 F.R.D. 305 (S.D. Ill. 2007). “That provision states, in relevant part, “[e]xeept as provided in this Section, when a transaction bears a reasonable relation to this State and also to another state or nation the parties may agree that the law either of this State or of the other state or nation shall govern…”
Siegel v. Shell Oil Co., 480 F. Supp. 2d 1034 (N.D. Ill. 2007). “810 ILCS 5/1-103 ("Unless displaced by the particular provisions of this [Illinois Commercial Code], the principles of law and equity, including .”
Kenworth of Indianapolis, Inc. v. Seventy-Seven Ltd., Convey All, LLC, Keller Trucking, Inc., K&K Aggregate, Inc., Huber Transp., LLC, Triple H Trucking, LLC, & Custom Hauling, Inc., 112 N.E.3d 1106 (Ind. Ct. App. 2018). “See 810 ILCS 5/1-103 (West 2006) ("Unless displaced by the particular provisions of this Act, the principles of law and equity shall supplement its provisions"); [ 14 ] L.”
Smith v. Merck & Co., Inc., 472 F. Supp. 2d 1096 (S.D. Ill. 2007). “Finally, although the Court is not required to reach the issue because it has concluded that Smith has viable claims for strict products liability and negligence against Walgreens, the Court rejects Merck’s contention that Smith has no viable claim against Walgreens for breach…”
Dixon, Laukitis & Downing, P.C. v. Busey Bank, 2013 IL App (3d) 120832 (Ill. App. Ct. 2013). “It sets forth a bank’s general duty to exercise ordinary care and states that “action or non-action approved by this Article *** is the exercise of ordinary care and, in the absence of special instructions, action or non-action consistent *** with a general banking usage not…”
Cornerstone Bank v. Consol. Grain, 956 N.E.2d 944 (Ill. App. Ct. 2011). “§ 1631 (2006)), which seeks to remove burdens and obstructions to interstate commerce in farm products, preempts the pertinent portions of the Uniform Commercial Code (UCC) (810 ILCS 5/1-103 through 13-101 (West 2008)) that conflict with the expressed purpose of the Act.”
First Nat'l Bank v. Colonial Bank, 831 F. Supp. 637 (N.D. Ill. 1993). “810 ILCS 5/1-103 (emphasis indicates the change in the section).”
Ausmas v. Jeffreys, 2021 IL App (4th) 200521-U (Ill. App. Ct. 2021). “However, the Uniform Commercial Code governs commercial transactions (810 ILCS 5/1-103(a)(1) (West 2018)) and not prison grievances.”
Garza v. Pritzker, 2021 IL App (4th) 200623-U (Ill. App. Ct. 2021). “¶ 14 On appeal, petitioner argues he made a good-faith effort to exhaust administrative remedies and did not need to exhaust his remedies. To the extent petitioner alleges he had a reservation of rights under the Uniform Commercial Code, we note the Uniform Commercial Code…”
Burnett v. Pritzker, 2021 IL App (4th) 190617-U (Ill. App. Ct. 2021). “However, the UCC governs commercial transactions and not prison grievances (see 810 ILCS 5/1-103(a)(1) (West 2018)). Plaintiff also argues the doctrine of exhaustion only applies to federal actions under the PLRA (42 U.”
Nkemnji (N.D. Ill. 2026). “See 810 ILCS 5/1-103; see also dkt. 32 at *10 (Mr.”
Adams v. Greg Weeks, Inc. (Ill. App. Ct. 2002). “Equity should not allow plaintiff in this case to claim that the first contract gave her a superior right to possession unless she has either fulfilled the first contract or has an equitable reason for not doing so.”
Show all 14 citing cases →
— 810 ILCS 5/1-103(a)(1) — 3 cases
Ausmas v. Jeffreys, 2021 IL App (4th) 200521-U (Ill. App. Ct. 2021). “However, the Uniform Commercial Code governs commercial transactions (810 ILCS 5/1-103(a)(1) (West 2018)) and not prison grievances.”
Garza v. Pritzker, 2021 IL App (4th) 200623-U (Ill. App. Ct. 2021). “¶ 14 On appeal, petitioner argues he made a good-faith effort to exhaust administrative remedies and did not need to exhaust his remedies. To the extent petitioner alleges he had a reservation of rights under the Uniform Commercial Code, we note the Uniform Commercial Code…”
Burnett v. Pritzker, 2021 IL App (4th) 190617-U (Ill. App. Ct. 2021). “However, the UCC governs commercial transactions and not prison grievances (see 810 ILCS 5/1-103(a)(1) (West 2018)). Plaintiff also argues the doctrine of exhaustion only applies to federal actions under the PLRA (42 U.”
— 810 ILCS 5/1-103(b) — 1 case
Dixon, Laukitis & Downing, P.C. v. Busey Bank, 2013 IL App (3d) 120832 (Ill. App. Ct. 2013). “It sets forth a bank’s general duty to exercise ordinary care and states that “action or non-action approved by this Article *** is the exercise of ordinary care and, in the absence of special instructions, action or non-action consistent *** with a general banking usage not…”
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