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Illinois — Court Rules & Rules of Practice Guide

Last verified · Published by Michigan Legal Publishing Ltd. · Browse the Illinois rules

1. Court System Overview

Illinois has the nation’s simplest trial structure and one of its most layered rule systems: circuit courts (25 circuits — 7 single-county (incl. Cook) + 18 multi-county; single-tier, general jurisdiction over essentially all matters — everything from small claims to murder; verified from illinoiscourts.gov), the Illinois Appellate Court (five districts; First District = Cook County — verified), and the Illinois Supreme Court. Procedure splits between statutes — the Code of Civil Procedure (735 ILCS 5) and Code of Criminal Procedure of 1963 (725 ILCS 5) — and the Illinois Supreme Court Rules. The interplay is set by text rather than a single rule: 735 ILCS 5/1-104(a) gives the Supreme Court “power to make rules of pleading, practice and procedure … supplementary to, but not inconsistent with the provisions of this Act,” while Rule 1 provides that the trial-court rules, “together with the Civil Practice Law and the Code of Criminal Procedure, shall govern all proceedings in the trial court, except to the extent that the procedure in a particular kind of action is regulated by a statute other than the Civil Practice Law”; where a rule and a statute directly conflict, check the case law. Official rules at illinoiscourts.gov/rules; statutes at ilga.gov.

2. The Ruleset Map

Illinois concentrates its court-made rules in one unified body — the Illinois Supreme Court Rules — organized by Article, with statutes carrying the substantive procedure (verified structure via the official rules index):

Layer Content
Supreme Court Rules, Art. I General rules (Rules 1–100.13) — incl. Rule 9 (electronic filing) and Rule 11 (service of documents / e-service)
Art. II Rules on Civil Proceedings in the Trial Court (101–300) — discovery (201–224), small claims (Rules 281–289: claims ≤$10,000, simplified pleading, limited discovery) (cap verified from official Rule 281 PDF: “civil action based on either tort or contract for money not in excess of $10,000, exclusive of interest and costs”)
Art. III Civil Appeals Rules (301–384)
Art. IV Rules on Criminal Proceedings in the Trial Court (401–472)
Art. V Trial court proceedings in traffic/conservation offenses & ordinance violations (501–590); the official compilation’s amendment histories show Rules 501, 529, 556 and 585 “amended Oct. 27, 2022, eff. Sept. 18, 2023,” with earlier committee comments on cash-bail distribution “retained to memorialize the history” of those rules (verified from the official full-rules PDF)
Art. VI Appeals in Criminal Cases, Post-Conviction Cases & Juvenile Court Proceedings (601–663)
Art. VII Rules on Admission & Discipline of Attorneys (701–799, incl. Rule 707 out-of-state permission, Rules 751–780 discipline machinery, MCLE rules); Rule 711 (practice by supervised law students and graduates) is rewritten effective January 1, 2027, by the order of April 14, 2026, which adds Uniform Bar Examination eligibility and a temporary license for graduates from 2027 through 2029
Art. VIII Illinois Rules of Professional Conduct of 2010
Art. IX Child custody/allocation of parental responsibilities proceedings (900s)
Art. X–XI Art. X: Supreme Court Commission on Access to Justice; Art. XI: Illinois Code of Judicial Conduct of 2023 (verified from official rules index)
Statutes 735 ILCS 5 (civil, incl. § 2-615/2-619 motions, § 2-1401 collateral relief); 725 ILCS 5 (criminal, incl. 103-5 speedy trial, 122-1 Post-Conviction Hearing Act); 755 ILCS 5 (Probate Act); 705 ILCS 405 (Juvenile Court Act)
Local circuit rules Substantial — each circuit (esp. Cook County, with its General Orders and division structure) has significant local rules
  • No standalone probate/juvenile procedure rulesets: probate and juvenile practice run on their Acts — the Probate Act of 1975 (755 ILCS 5) and Juvenile Court Act of 1987 (705 ILCS 405) (short titles verified on ilga.gov) — + Supreme Court Rules + local rules; the official Article I–XI index confirms no separate probate/juvenile rules article.
  • Business court equivalent: no statewide business court; the Cook County Law Division’s Commercial Individual Calendar Section functions as one — Cook County General Order 1.2, 2.1(a)(3) lists it among the Law Division’s seven sections (Motion, Assignment, Jury, Non-Jury, General Individual Calendar, Commercial Individual Calendar, Complex Litigation Case Management) (verified from the Cook County general-orders page).
  • Evidence is its own codification: the Illinois Rules of Evidence (2011) — see § 5.

3. Civil Litigation Mechanics

  • Commencement: complaint + summons; appear/respond within 30 days after service (verified from Rule 181) — appearance practice (filing an appearance form) is an Illinois formality newcomers miss; a bare written appearance buys 10 more days to answer or move unless the court directs otherwise (Rule 181(a), verified).
  • The two-track dismissal motion is the Illinois signature: § 2-615 (defects in pleadings — verified from ilga.gov) vs. § 2-619 (involuntary dismissal on affirmative matter defeating the claim — limitations, prior judgment, other action pending, release, Statute of Frauds, and a catch-all for “other affirmative matter” — verified from ilga.gov), combinable in a single sectioned motion under § 2-619.1 (which also allows combining § 2-1005 summary judgment; verified). Choosing the wrong section is a classic error; Illinois is a fact-pleading state — the Code requires “a plain and concise statement of the pleader’s cause of action” with each count “divided into paragraphs numbered consecutively, each paragraph containing, as nearly as may be, a separate allegation” (735 ILCS 5/2-603, verified from ilga.gov), and § 2-612(b) saves a pleading only if it “reasonably informs the opposite party of the nature of the claim” (verified); the “fact-pleading” label itself is a case-law gloss.
  • Discovery: Supreme Court Rules 201–224 — Rule 213 written interrogatories (max 30 including subparts absent agreement or leave) with three disclosure categories verified from the official rule: lay witnesses, independent expert witnesses, controlled expert witnesses (controlled experts require subject matter, conclusions/opinions and bases, qualifications, and reports — Rule 213(f)(3)); Rule 216 admissions (title verified); Rule 191 affidavits for § 2-1005/§ 2-619/§ 2-301(b) proceedings (title verified); under Rule 201(c)(2) the court “on its own initiative without notice … may supervise all or any part of any discovery procedure,” and Rule 201(c)(1) and (3) add protective orders and a proportionality test (verified from the official rule text).
  • Small claims (Rules 281–289): ≤$10,000, simplified; no depositions, interrogatories, other discovery, or requests to admit before trial “except by leave of court” (verified from official Rules 281 and 287 PDFs).
  • Cook County is its own world: divisions (Law, Chancery, Municipal, etc.), commercial calendars, motion-call culture, standing orders per judge.

4. Criminal Practice Mechanics

  • Path: felonies by information + preliminary hearing or grand jury; misdemeanors by complaint; all in the circuit court.
  • Speedy trial (verified from 725 ILCS 5/103-5 on ilga.gov): 120 days in custody (automatic) / 160 days on pretrial release after written demand; detailed exclusions (defendant-caused delay, fitness proceedings, interlocutory appeals); remedy: “discharged from custody or released from the obligations of his pretrial release.” Post-SAFE-T Act text speaks of “pretrial release” (verified) — the Pretrial Fairness Act abolished monetary bail: 725 ILCS 5/110-1.5 (“On and after January 1, 2023, the requirement of posting monetary bail is abolished,” narrow interstate-compact exceptions; verified from ilga.gov). The Supreme Court’s companion rule amendments — Rule 604(h) pretrial-release appeals and the Article V amendments noted in § 2 — carry an effective date of September 18, 2023 in the official rules compilation.
  • Discovery: Supreme Court Rules 411–417 (broad, reciprocal) — Rule 411 (verified from official PDF) applies them to felony cases (and juvenile delinquency charges that would be felonies), operative only after indictment/information — not at preliminary hearing.
  • Post-conviction: the Post-Conviction Hearing Act (725 ILCS 5/122-1) — staged: first-stage summary dismissal within 90 days if frivolous/patently without merit (§ 122-2.1, verified); deadlines (verified from ilga.gov): 6 months after U.S. Supreme Court proceedings conclude (or after cert deadline), or 3 years from conviction if no direct appeal, absent lack of culpable negligence; no time limit for actual-innocence claims; successive petitions need leave (cause + prejudice). Plus § 2-1401 petitions for civil-style collateral relief (generally 2-year limit, verified).
  • Criminal appeals: Art. VI rules; Rule 604(a) governs State appeals (dismissals, suppression, etc. — verified); Rule 605 admonishments (“Advice to Defendant,” title verified); guilty-plea appeals require a Rule 604(d) motion within 30 days of sentencing (motion to reconsider sentence, or to withdraw the plea and vacate judgment if the plea is challenged) — issues not raised are waived (verified from official PDF).

5. Evidence

  • Illinois Rules of Evidence — Supreme Court-adopted codification, adopted September 27, 2010, effective January 1, 2011 (verified from the official Rule 702 PDF); FRE-format numbering (“Ill. R. Evid. 403”) codifying Illinois common law (with deliberate divergences).
  • Experts: Illinois is a Frye state — verified from the official Ill. R. Evid. 702 text: for “a new or novel scientific methodology or principle,” the proponent must show it “is sufficiently established to have gained general acceptance in the particular field in which it belongs.”

6. Appellate Mechanics

  • Routing: final judgments → Appellate Court (district by circuit; “each of which hears appeals from the circuits within that district,” verified); Supreme Court review is discretionary via petition for leave to appeal (PLA) — Rule 315 (“Leave to Appeal From the Appellate Court to the Supreme Court,” title verified) — plus Rule 302 direct appeals to the Supreme Court in narrow classes (title verified).
  • Initiating: notice of appeal filed with the circuit court clerk within 30 days of the final judgment, or 30 days after the order disposing of the last timely postjudgment motion (verified from official Rule 303 PDF); Illinois’s finality doctrine is a major trap — a judgment on fewer than all claims/parties is appealable only with the Rule 304(a) express written finding that “there is no just reason for delaying either enforcement or appeal or both” (verified from official Rule 304 PDF).
  • Interlocutory: Rule 307 (as of right — incl. orders “granting, modifying, refusing, dissolving, or refusing to dissolve or modify an injunction”; 30 days by “Notice of Interlocutory Appeal”; a TRO ruling is reviewed instead by petition filed in the Appellate Court within two days, with the notice of interlocutory appeal also filed in the circuit court within the same time — Rule 307(a), (d)), Rule 306 (by permission — new-trial grants (306(a)(1)), forum non conveniens/intrastate transfer (306(a)(2)), venue (306(a)(4)), etc. — verified), Rule 308 (certified questions, title verified).
  • Criminal: Rule 606 notice (“Perfection of Appeal,” title verified); Rule 604(d)’s plea-withdrawal/sentence-reconsideration-motion prerequisite (verified — see § 4); after a trial, a challenge to “the correctness of the sentence, or any aspect of the sentencing hearing” must be raised by written motion in the trial court within 30 days of sentencing, and any sentencing issue “not raised in the written motion shall be deemed waived” — Rule 605(a)(3)(B)–(C) admonishments, mirroring 730 ILCS 5/5-4.5-50(d) (both verified).
  • Briefing under Rules 341–343 with strict format enforcement.

7. Rules of Professional Conduct

  • Illinois Rules of Professional Conduct of 2010 — Article VIII of the Supreme Court Rules; “Adopted July 1, 2009, effective January 1, 2010” (verified from the official Rule 3.3 PDF); Model Rules-based. Cited “Ill. R. Prof’l Conduct (2010) R. 3.3.”
  • Discipline-adjacent Article VII rules — Rule 751 (ARDC), Rule 753 (Inquiry, Hearing and Review Boards), Rule 756 (“Registration and Fees”) (titles verified from the official Article VII index), plus MCLE rules; the ARDC’s rules page collects them. Rule 756(d) (“Disclosure of Trust Accounts”) requires each registering attorney to identify every client/third-party trust account held in the preceding 12 months (name, number, institution, IOLTA status) or state why none is required (verified from the official rule text).

8. Attorney Discipline & Enforcement

From the ARDC (iardc.org):

  • Flow: complaint → ARDC Administrator (staff investigation; “All investigations are confidential”) → Inquiry Board (votes whether to file formal charges) → Hearing Board (public hearing; findings + recommendation) → Review Board (appellate review when a party objects) → Illinois Supreme Court (“sole authority to impose disciplinary sanctions”; Hearing and Review Boards may issue reprimands independently).
  • The ARDC (operating since 1973; 7 commissioners — 4 lawyers + 3 public members appointed by the Court) also runs registration; discipline history is public on iardc.org.
  • Sanctions: reprimand/censure, probation, suspension (fixed or until further order), disbarment.

9. Newcomer Orientation Notes

  • File your appearance (and pay the appearance fee) — participation without one causes procedural chaos.
  • Learn § 2-615 vs. § 2-619 and Rule 304(a) before anything else — they are the two most Illinois-specific mechanics.
  • Fact pleading: federal-style notice complaints draw 2-615 motions.
  • Cook vs. downstate: practice culture differs sharply; always pull the circuit’s local rules and the individual judge’s standing order.
  • E-filing: statewide mandatory e-filing through eFileIL (Tyler Odyssey-based; multiple certified EFSPs) for civil cases since January 1, 2018 (official eFileIL page and “E-filing is Required in Illinois” flyer); exemptions exist (no internet/computer access, disability, language, protection-order filings — certification form required). Rule 9 governs e-filing and Rule 11 governs e-service.
  • Self-help: Illinois Legal Aid Online (ILAO) is the resource the Supreme Court’s own self-help page links to for legal information by case type and for legal-aid applications — the page notes the links go “to a separate website, IllinoisLegalAid.org”; illinoiscourts.gov has standardized forms.
  • Out-of-state counsel: permission under Rule 707 (verified from official PDF): verified statement filed with the ARDC + ARDC registration under Rule 756 + $250 nonrefundable per-proceeding fee + association with an Illinois attorney; an attorney who has already appeared in more than five other proceedings under the rule in the same calendar year is not eligible (Rule 707(b)(2)).

10. Sources & Verification

Sources fetched 2026-08-28 (full verification pass 2) — official unless labeled:

Sources fetched 2026-09-02 (flag-resolution pass 3):

Sources fetched 2026-09-24 (claim-by-claim audit):

  • Official rule and statute text as published on courtrules.net (imported from illinoiscourts.gov and ilga.gov, August 25 – September 14, 2026): Ill. S. Ct. R. 181, 213(c), 281, 307(a), (d), 770; 725 ILCS 5/103-5, 5/110-1.5, 5/122-1(c) — all matched.

Sources fetched 2026-10-09 (content audit):

  • Official — Illinois Supreme Court Rules, full compilation PDF, “Current May 29, 2026” (same URL as above), against the court’s amendment archive (https://www.illinoiscourts.gov/rules/supreme-court-rules/amendment-archive), whose latest order is May 29, 2026 (Rule 9), and its orders and announcements list; the order of April 14, 2026 amending Rules 705, 717, 793, 795, and 711 (Rule 711 effective January 1, 2027); the compilation “Current February 3, 2026” (Wayback Machine copy of the same file) for Rule 711 as in force until then.
  • Official — Illinois Rules of Evidence, the 61 rule PDFs listed at https://www.illinoiscourts.gov/courts/supreme-court/courts-supreme-court-illinois-rules-of-evidence/ (latest amendment Rule 803, January 25, 2023).
  • Official — ilga.gov, 735 ILCS 5 and 725 ILCS 5, “View Entire Act”. Every rule and section cited in §§ 1–9 re-checked against the current text; Rule 707(b)(2)’s limit restated as the rule words it.

Not verified (flagged): none.