Can You Legally Buy a Gun in Illinois? FOID, Waits, Penalties

To legally buy a gun in Illinois, you need a Firearm Owner’s Identification (FOID) card issued by the Illinois State Police before you can purchase a firearm or ammunition from any source in the state. Once you have it, you can buy from a federally licensed dealer or a private seller, but every sale runs through a background check and a mandatory 72-hour waiting period, and certain weapons are off-limits entirely under the Protect Illinois Communities Act.¹

Start With the FOID Card

Illinois is one of the few states that requires a state-issued identification card just to possess a firearm or ammunition. Without a valid FOID card, you cannot legally buy, possess, or receive either one anywhere in the state.¹ The Illinois State Police administers the program, and the card is the baseline credential for everything else, including a later Concealed Carry License.

Who Qualifies

You must be an Illinois resident and at least 21 years old to apply on your own. Applicants under 21 need a parent or legal guardian to sponsor the application, and that parent must hold a valid FOID card.²

Several conditions will disqualify you. The Illinois State Police checks each one during the application process:³

Any felony conviction under Illinois law or the law of another state is a permanent bar.
A conviction for domestic battery or aggravated domestic battery, whether charged as a felony or misdemeanor, is a permanent bar.
Convictions for battery, assault, aggravated assault, or violation of an order of protection within the past five years disqualify you if a firearm was used or possessed during the offense.
Being a patient in a mental health facility within the past five years, or being adjudicated as a danger to yourself or others, bars eligibility.
Being the subject of an existing order of protection or a no-contact/no-stalking order disqualifies you.
Using or being addicted to a controlled substance within the past year disqualifies you.
Non-citizens unlawfully present or admitted on a non-immigrant visa are generally ineligible, with limited exceptions.

How to Apply

Applications go through the Illinois State Police Firearms Services Bureau online. You’ll need a valid Illinois driver’s license or state ID number, a head-and-shoulders photo taken within the last 30 days, and basic personal information.³ The fee is $10, payable by credit card or electronic check, with a 2.25% service fee (minimum $1) on card payments.²

New applications are generally processed within 30 days, and the physical card arrives by mail about 7 to 10 days later. Submitting a full set of fingerprints through a licensed live scan vendor is optional, but fingerprinted applicants get a 10-year card tied to their most recent firearm transfer approval and become eligible for automatic renewal.³

Buying From a Licensed Dealer

With a valid FOID card in hand, you can walk into any federally licensed firearms dealer in the state. The dealer runs a point-of-sale background check through the Illinois State Police Firearms Transfer Inquiry Program, which also queries the federal National Instant Criminal Background Check System.⁴ The dealer may charge up to $2 for the check. You cannot take the firearm home until the 72-hour waiting period has passed.

Buying From a Private Seller

Private sales carry more paperwork than many buyers expect. Before the transfer, the seller must either process the sale through a licensed dealer or contact the Illinois State Police directly to verify that your FOID card is valid under state and federal law. The State Police issues an approval number good for 30 days.⁵

After the sale, the seller must keep a written record for at least 10 years. You, as the buyer, have 10 days to deliver a copy of that record to a licensed dealer, who holds it for 20 years. The dealer can charge up to $25 for the recordkeeping.⁵

The 72-Hour Waiting Period

Illinois requires sellers to withhold delivery of any firearm for at least 72 hours after the buyer and seller agree to the purchase. This applies to handguns, rifles, and shotguns alike.⁶ The clock starts when the agreement is made, not when paperwork is filed or when the background check comes back. Narrow exceptions exist for law enforcement officers and certain licensed security professionals, but the waiting period applies to virtually all civilian purchases.

What You Still Can’t Buy

A valid FOID card does not clear you to buy everything on a dealer’s rack. The Protect Illinois Communities Act, which took effect on January 10, 2023, prohibits the sale of a wide range of firearms, accessories, and ammunition classified as assault weapons.⁷

The law defines an assault weapon by features rather than by model name. A semiautomatic rifle with a detachable magazine becomes an assault weapon if it also has a pistol grip, thumbhole stock, or certain other attachments. A semiautomatic pistol with a detachable magazine qualifies if it has a threaded barrel, among other features. Semiautomatic shotguns with a revolving cylinder or a fixed magazine holding more than five rounds are also covered.⁸

Large-capacity magazines are banned separately. Any magazine holding more than 10 rounds for a long gun or more than 15 rounds for a handgun qualifies as a prohibited large-capacity feeding device. Tubular magazines designed only for .22 caliber rimfire ammunition and tubular magazines in lever-action firearms are exempt.⁹

If you already owned one of these items before January 10, 2023, you were allowed to keep it only by filing an endorsement affidavit through your FOID account by the January 1, 2024 deadline. Even grandfathered items cannot be sold or transferred to another person within Illinois.⁷

A Warning About Cannabis Use

This is one of the trickier corners of Illinois gun law, and it can affect you even if the state approves your purchase. Under state law, holding a medical cannabis card or using cannabis legally in Illinois will not cause your FOID card to be denied or revoked. The Illinois State Police treats a medical cannabis license as a state-issued document that cannot by itself be the basis for denying a right or privilege.³

Federal law says the opposite. Under the Gun Control Act, any person who uses cannabis is prohibited from possessing firearms or ammunition, regardless of state legalization. The Illinois State Police explicitly warns that this federal prohibition applies until you revoke or relinquish your medical cannabis card, or until one year after you last used cannabis, whichever comes later.³ In other words, the state will issue the card and let you buy the gun, and you can still face federal prosecution for possessing it.

If You Live Out of State

Non-residents cannot obtain an Illinois FOID card and therefore cannot buy firearms in Illinois through the normal process. The FOID Act does allow non-residents to possess firearms in Illinois under specific circumstances, including while hunting with a valid non-resident hunting license, while at a recognized shooting range or firearm show, or while transporting an unloaded firearm enclosed in a case. Non-residents who hold a firearm license or registration from their home state also qualify for this exemption.²

Penalties for Getting It Wrong

Buying or possessing a firearm without a valid FOID card is a crime, and Illinois treats it as a spectrum rather than a single offense:¹⁰

Card expired six months or less, otherwise eligible: petty offense.
Card expired longer than six months, otherwise eligible to renew: Class A misdemeanor, up to one year in jail.
No FOID card but otherwise eligible to have one: Class A misdemeanor for a first offense; a second or subsequent violation is a Class 4 felony carrying one to three years in prison.
Card revoked, or ineligible for a card at all: Class 3 felony, two to five years in prison.

The gap between a petty offense and a Class 3 felony is wide enough that staying current on renewals matters as much as getting the card in the first place. If your card lapses and you still have firearms at home, you are technically in violation from the day it expires.

1
Illinois General Assembly. Illinois Code 430 ILCS 65 – Firearm Owners Identification Card Act
2
Illinois State Police. Illinois State Police – FOID Frequently Asked Questions
3
Illinois State Police. Firearm Owner’s Identification (FOID)
4
Illinois State Police. Firearms Services Bureau
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Illinois General Assembly. Illinois Compiled Statutes 430 ILCS 65/3 – Firearm Owners Identification Card Act
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Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/24-3 – Unlawful Sale of Firearms
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Illinois State Police. Protect Illinois Communities Act, Regulation on Assault Weapons
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Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/24-1.9 – Manufacture, Delivery, or Sale of Assault Weapons and Enforcement
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Illinois General Assembly. Illinois Compiled Statutes 720 ILCS 5/24-1.10 – Regulation of Large Capacity Ammunition Feeding Devices
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Justia Law. Illinois Code 430 ILCS 65 – Firearm Owners Identification Card Act