You do not have to register your firearm in Illinois. The state licenses gun owners rather than cataloging guns, and that license is the Firearm Owner’s Identification (FOID) card issued by the Illinois State Police. There is one meaningful exception: if you owned a rifle, pistol, shotgun, or accessory that the Protect Illinois Communities Act now classifies as an “assault weapon,” you were required to register it by filing an endorsement affidavit through your FOID account.
How Illinois Regulates Gun Ownership Instead
The Firearm Owners Identification Card Act, on the books since 1968, requires nearly every Illinois resident who wants to possess or buy a firearm or ammunition to hold a valid FOID card.1Illinois State Police Firearms Services Bureau. Frequently Asked Questions There is no statewide database where you log each gun you own. The card is proof that the state has run a background check and confirmed you’re legally eligible to have firearms.
The FOID requirement is broader than guns alone. Ammunition, stun guns, and tasers all require a valid FOID card to buy or possess in Illinois.2Illinois State Police. Firearm Owner’s Identification Active-duty law enforcement officers and a few other statutorily specified groups are exempt, but for most residents the card is non-negotiable. Once issued, it is valid for 10 years.1Illinois State Police Firearms Services Bureau. Frequently Asked Questions
Because the system tracks people rather than property, buying a second, third, or tenth firearm does not add anything to a state gun registry. Your obligation is to keep your FOID card current and to remain eligible to hold it.
Possession Without a FOID Card
Skipping the FOID card is not the same as skipping a registration form. Carrying or possessing a firearm without a valid FOID card can be charged as aggravated unlawful use of a weapon, a Class 4 felony on a first offense, carrying one to three years in prison. A second offense is a Class 2 felony with three to seven years. Possession without a FOID card while wearing body armor escalates to a Class X felony, among the most serious classifications in Illinois.3Illinois General Assembly. 720 ILCS 5/24-1.6 – Aggravated Unlawful Use of a Weapon
The One Real Registration Requirement: PICA
The Protect Illinois Communities Act, signed in January 2023, created the only true firearm registration requirement in Illinois. If you legally possessed a firearm the law now classifies as an “assault weapon,” a .50 caliber rifle, or certain accessories such as high-capacity magazines before the law took effect, you were required to register those items by submitting an endorsement affidavit through your FOID account.4Illinois State Police. Protect Illinois Communities Act, Regulation on Assault Weapons
The official deadline was January 1, 2024. The Illinois State Police has confirmed that the FOID portal remains open indefinitely for endorsement affidavit submissions, and there are no separate fines or penalties specifically for filing late. That said, the relevant jurisdiction could treat a late submission as invalid or insufficient, and possessing these items without a completed affidavit is a violation of state law.4Illinois State Police. Protect Illinois Communities Act, Regulation on Assault Weapons If you missed the deadline and still have regulated items, filing the affidavit now is far better than doing nothing.
Possessing a PICA-regulated firearm without a completed endorsement affidavit can be charged as a Class A misdemeanor for a first offense, carrying up to 364 days in jail and a fine of up to $2,500.5Illinois General Assembly. 730 ILCS 5/5-4.5-55 – Class A Misdemeanor Subsequent offenses carry steeper penalties.
What Counts as an Assault Weapon
PICA’s definition is feature-based rather than a simple list of named models. In general terms, the law covers semiautomatic rifles that accept detachable magazines and have features like a pistol grip, folding stock, flash suppressor, or barrel shroud. It also covers semiautomatic pistols with similar features, semiautomatic shotguns with pistol grips or detachable magazines, shotguns with revolving cylinders, and any semiautomatic firearm that accepts belt-fed ammunition.6Illinois General Assembly. Section 1230 Appendix A – List of Assault Weapons The ISP publishes an identification guide if you’re unsure whether a specific firearm you own falls under the law.7Illinois State Police. Assault Weapon Identification Guide
What the Affidavit Requires
The endorsement affidavit asks for the make, model, and serial number of each regulated firearm you possess. You submit it electronically through your existing FOID card account on the ISP portal. The process creates a registry for these specific grandfathered firearms, separate from the FOID owner-licensing system. Owners who registered retain possession rights, but PICA restricts where and how those firearms can be used. They cannot be carried in most public places and can only be transferred through a federal firearms licensee.
Private Firearm Transfers Create a Record
Even outside PICA, Illinois does keep a paper trail on individual transactions when a firearm changes hands. When two private individuals, neither of them licensed dealers, buy, sell, or trade a firearm, the seller must verify the buyer’s FOID card through the ISP’s online verification portal before the transfer happens.8Illinois State Police Firearms Services. FOID/CCL Card Verification Portal
The steps a private seller and buyer follow:
- The seller enters the buyer’s FOID number into the ISP portal. If valid, ISP issues an approval number good for 30 days.
- The seller records the make, model, and serial number of the firearm being transferred.
- All firearm transfers other than tasers and stun guns are subject to a 72-hour waiting period from the time the buyer and seller agree on the sale.9Illinois Firearm Dealer Portal. Frequently Asked Questions
- After the transfer, the buyer must provide a copy of the Record of Firearm Transfer to a federal firearms licensee within 10 days, or send it to the ISP.8Illinois State Police Firearms Services. FOID/CCL Card Verification Portal
This is a transaction record, not a registry of continuing ownership. Once the transfer is documented, the state does not require you to update anything as long as you hold the firearm. Age restrictions apply: you must be at least 21 to receive a handgun and at least 18 to receive a long gun in a private transfer. Firearms regulated by PICA cannot be transferred through the private sale portal at all. Those must go through a federal firearms licensee who can verify the required exemption documents.8Illinois State Police Firearms Services. FOID/CCL Card Verification Portal
Local Rules Can Go Further
Illinois law explicitly preserves the right of municipalities to impose firearm regulations stricter than the FOID Card Act. Any local ordinance requiring registration or imposing greater restrictions on buying, possessing, or transferring firearms remains valid and enforceable.10Illinois General Assembly. 430 ILCS 65 – Firearm Owners Identification Card Act – 13.1 So even though the state does not run a general gun registry, your city or county might. Some municipalities have enacted their own bans on specific firearm types or imposed particular storage and transportation rules. Check your local ordinances before assuming the FOID card is the end of your obligations.