Getting caught with a gun in Illinois can mean anything from a petty offense to a Class X felony with decades in prison. The charge depends on four things: whether you have a valid Firearm Owner’s Identification (FOID) card, whether you have a Concealed Carry License (CCL), whether the gun was loaded and within reach, and whether you have a prior record. Where you were carrying matters too, because some locations are off-limits even to licensed carriers.
No FOID Card
Illinois requires a FOID card to possess any firearm or ammunition. If you’re otherwise eligible and simply never applied, or let your card lapse by more than six months, a first offense is a Class A misdemeanor: less than a year in jail and up to a $2,500 fine.1Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-55 – Class A Misdemeanors; Sentence A second offense is a Class 4 felony.
If your card was revoked, or you were never eligible in the first place, the first offense is already a Class 3 felony carrying two to five years in prison.2Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-40 – Class 3 Felonies; Sentence One narrow break exists: if your card expired within the last six months and nothing else disqualifies you, it drops to a petty offense.3Illinois General Assembly. Illinois Compiled Statutes 430 ILCS 65 – Firearm Owners Identification Card Act
No Concealed Carry License
A FOID card lets you own and transport a firearm. It does not let you carry one loaded in public or in a vehicle. For that you need a separate Concealed Carry License.4Illinois General Assembly. Illinois Compiled Statutes 430 ILCS 66/10 – Issuance of Licenses to Carry a Concealed Firearm In a car, a firearm is legal to transport only if it is unloaded and enclosed in a case. Loaded or within easy reach, it triggers an unlawful use of weapons charge.
Illinois does not honor concealed carry licenses from other states. A non-resident with a valid home-state license can keep a concealed firearm inside a vehicle while passing through Illinois, but stepping out of the vehicle with it is a crime. If the vehicle is left unattended, the firearm has to be locked inside the vehicle or in a locked container within it.5Illinois State Police. Transporting Your Firearm
Aggravated Unlawful Use of a Weapon
This is where penalties get serious. A basic weapons charge is upgraded to aggravated unlawful use of a weapon (AUUW) when certain risk factors are present. The most common trigger is carrying a loaded, accessible handgun without both a valid FOID card and a CCL.6Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/24-1.6 – Aggravated Unlawful Possession of a Weapon Other triggers include carrying a firearm during certain drug-related misdemeanors or being subject to an order of protection issued in the last two years.
A first AUUW offense is a Class 4 felony, one to three years in prison and a fine up to $25,000.7Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-45 – Class 4 Felonies; Sentence When the offense involves a loaded, accessible firearm carried without both a CCL and a FOID card, that one-to-three-year prison term is mandatory and probation is off the table. A second AUUW is a Class 2 felony (three to seven years), and so is a first offense if you already have a felony conviction. Carrying a gun without a FOID card while wearing body armor is a Class X felony, starting at six years.
Felon in Possession
Anyone with a felony conviction in Illinois or any other state is banned from possessing firearms or ammunition. A violation is a Class 3 felony with a sentencing range of two to ten years, and the prison term is mandatory.8Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/24-1.1 – Unlawful Possession of Weapons by Felons That ten-year ceiling runs well above the standard Class 3 range and catches many people off guard.
Penalties climb from there. A second offense, or a first offense by someone with a prior forcible felony, a prior felony weapons conviction, or a stalking conviction, is a Class 2 felony carrying three to fourteen years. If the firearm is a machine gun, the charge becomes a Class X felony regardless of criminal history. Each firearm or batch of ammunition found counts as a separate violation, so possessing multiple guns multiplies the charges.
Banned Weapons
Some weapons are illegal in Illinois no matter what licenses you hold. Possessing a machine gun is a Class 2 felony carrying three to seven years. If the machine gun is loaded and on your person or in the passenger area of a vehicle, it becomes a Class X felony with six to thirty years.9Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/24-1 – Unlawful Possession of Weapons Short-barreled rifles (under 16 inches) and short-barreled shotguns (under 18 inches) are Class 3 felonies.
Assault Weapons and Large-Capacity Magazines
The Protect Illinois Communities Act took effect on January 10, 2023 and banned the sale and manufacture of assault weapons, .50-caliber rifles, and large-capacity magazines. People who already owned those items had to register them with the Illinois State Police through the endorsement affidavit process by January 1, 2024.10Illinois State Police. Protect Illinois Communities Act, Regulation on Assault Weapons Keeping a banned item in Illinois without the endorsement affidavit creates felony exposure.
Unserialized Firearms and Ghost Guns
Since November 14, 2022, possessing an unserialized firearm or unfinished frame has been illegal in Illinois, with narrow exceptions such as licensed firearms manufacturers. Guns made with a 3D printer are included. Penalties range from a Class A misdemeanor to a Class 2 felony depending on the conduct.11Illinois State Police. Public Notice Regarding Public Act 102-0889 Anyone who owned a homemade firearm before January 10, 2023 had to have it serialized by a federally licensed dealer. Transferring an unserialized gun to anyone other than a licensed dealer is also prohibited.
Carrying in a Prohibited Place
A concealed carry license does not work everywhere. Illinois law lists locations where a firearm is prohibited regardless of credentials.12Illinois General Assembly. Illinois Compiled Statutes 430 ILCS 66/65 – Prohibited Areas The most commonly relevant:
- Schools, preschools, and childcare facilities, including grounds and parking areas.
- Government buildings, including executive and legislative offices, local government buildings, and courthouses.
- Publicly funded buses, trains, and transit facilities.
- Public parks, athletic facilities, playgrounds, zoos, and museums.
- Amusement parks, libraries, hospitals, and bars where more than 50% of revenue comes from alcohol sales.
A first violation is a Class B misdemeanor. A second is a Class A misdemeanor. Three or more violations permanently revoke your concealed carry license, and every conviction carries a $150 fee for the Mental Health Reporting Fund.13Illinois General Assembly. Illinois Compiled Statutes 430 ILCS 66/70 – Penalties
Private property owners can add their own locations by posting the Illinois State Police-approved sign at building entrances: white background, a black handgun crossed out by a red circle and diagonal line, four inches by six inches.14Illinois State Police Firearms Services Bureau. Requirements for Concealed Carry Signage Ignoring a properly posted sign carries the same penalties as any other prohibited-area violation.
What a Conviction Does to Your FOID Card
A firearm conviction almost always triggers FOID revocation. Once your card is revoked, you have to surrender it and file a Firearm Disposition Record within 48 hours documenting the transfer of every firearm you own. Guns must go to a licensed dealer, law enforcement, or another FOID card holder.15Illinois State Police. FOID Court Ordered Relief Required
Getting the card back depends on what you were convicted of. A forcible felony, domestic battery, aggravated stalking, a felony weapons offense, or certain drug felonies means you cannot simply reapply. You need a court order granting relief from the circuit court in the county where you live. That process is neither fast nor guaranteed.
Illinois Felony and Misdemeanor Classes
Nearly every charge above points to a class. What those actually mean:
- Class C misdemeanor: up to 30 days in jail and a fine up to $1,500.
- Class B misdemeanor: up to six months in jail and a fine up to $1,500.
- Class A misdemeanor: less than one year in jail and a fine up to $2,500.
- Class 4 felony: one to three years in prison and a fine up to $25,000.
- Class 3 felony: two to five years in prison (up to ten for an extended term) and a fine up to $25,000.
- Class 2 felony: three to seven years in prison (up to fourteen for an extended term) and a fine up to $25,000.16FindLaw. Illinois Compiled Statutes 730 ILCS 5/5-4.5-35 – Class 2 Felonies; Sentence
- Class X felony: six to thirty years in prison (up to sixty for an extended term) and a fine up to $25,000.17Illinois General Assembly. Illinois Compiled Statutes 730 ILCS 5/5-4.5-25 – Class X Felonies; Sentence
The $25,000 maximum fine applies across felony classes unless a specific statute sets a higher amount.18FindLaw. Illinois Compiled Statutes 730 ILCS 5/5-4.5-50 – General Recidivism Provisions Several gun offenses carry mandatory prison time with no probation option, especially felon-in-possession charges and AUUW charges involving a loaded, accessible firearm. The gap between probation eligibility and a mandatory prison term often turns on small facts, like whether the gun was loaded or whether it was in a case.