What are the Illinois felony classes and sentence ranges?

Illinois has 5 felony classes: Class X (6-30 years, no probation), Class 1 (4-15 years), Class 2 (3-7 years), Class 3 (2-5 years), and Class 4 (1-3 years). Extended-term sentencing can double these ranges for repeat offenders or certain aggravating factors under 730 ILCS 5/5-4.5.

What is the firearm add-on for Illinois felonies?

Illinois imposes mandatory consecutive prison terms for firearm use: 15 years for personally discharging a firearm, 20 years if the discharge caused great bodily harm, and 25 years to life if the discharge caused death. These add-ons apply to Class X, Class 1, and Class 2 felonies under 730 ILCS 5/5-8-1.

Can you get probation for a Class X felony in Illinois?

No. Class X felonies in Illinois are not probationable. A conviction requires a mandatory prison sentence of 6 to 30 years. Class X offenses include armed robbery, aggravated criminal sexual assault, and home invasion.

What is extended-term sentencing in Illinois?

Extended-term sentencing in Illinois allows courts to impose a sentence up to twice the maximum for the offense class when certain aggravating factors are present, such as prior convictions for the same or greater class of felony within 10 years, or when the offense was exceptionally brutal or heinous.

What is truth-in-sentencing in Illinois?

Illinois truth-in-sentencing laws require certain violent offenders to serve 85% or 100% of their sentence before parole eligibility. Murder defendants must serve 100%. Most Class X and Class 1 violent felony defendants must serve 85%. Other offenders serve 50% before parole eligibility.

Legal Tool730 ILCS 5/5-4.5

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10 questions. Covers all 8 Illinois offense classes — Class X through Class C Misdemeanor. Firearm add-ons, extended-term analysis, probation eligibility, and collateral consequences. All ILCS citations included.

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Illinois Offense Classes at a Glance — 730 ILCS 5/5-4.5

Class	Prison Range	Max Fine	MSR	Probation	Extended Term Max
Class X	6–30 yrs	$25,000	3 yrs	NO	60 yrs
Class 1	4–15 yrs	$25,000	2 yrs	Yes	30 yrs
Class 2	3–7 yrs	$25,000	2 yrs	Yes	14 yrs
Class 3	2–5 yrs	$25,000	1 yr	Yes	10 yrs
Class 4	1–3 yrs	$25,000	1 yr	Yes	6 yrs
Class A Misd.	Up to 364 days	$2,500	None	Yes	N/A
Class B Misd.	Up to 180 days	$1,500	None	Yes	N/A
Class C Misd.	Up to 30 days	$1,500	None	Yes	N/A

Illinois Sentencing Calculator

Illinois Offense Classes at a Glance — 730 ILCS 5/5-4.5

Illinois Sentencing
Calculator