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How to Buy a Gun in Illinois
Buying a firearm in Illinois is legal for most eligible adults, but the process must follow both federal law and Illinois state regulations. This guide covers everything you need to know.
- legal
- safe
- bill of sale
How to Buy a Gun in Illinois — Quick Overview
- Who Can Buy: Adults 21+ for handguns; 18+ for long guns — must hold a valid FOID card
- Age Requirements: 21+ for handguns; 18+ for long guns
- Background Check: Required for ALL transfers — private sellers must verify FOID and run ISP background check
- Waiting Period: 72 hours for handguns; 24 hours for long guns
- FOID Card: Required — must be obtained from Illinois State Police before purchasing any firearm or ammunition
- Private Sales: Require FOID verification and ISP background check — records retained 10 years
- Gun Registration: Statewide assault weapon registration under 2023 law; Chicago has additional requirements
- Bill of Sale: Strongly recommended alongside required ISP transfer documentation
Table of Contents
Who Can Legally Buy a Gun in Illinois
Age Requirements for Buying a Gun in Illinois
Buying a Gun from a Licensed Dealer
Buying a Gun from a Private Seller in Illinois
Step-by-Step Guide to Buying a Gun in Illinois
Why Many Buyers Use GunTransfer
Documents Required to Buy a Gun in Illinois
Waiting Periods and Registration in Illinois
Interstate Gun Purchases
Illinois Gun Laws Every Buyer Should Understand
Responsible Firearm Ownership
FAQ About Buying a Gun in Illinois
Illinois FOID Card Requirement
Illinois 2023 Assault Weapons Ban
Who Can Legally Buy a Gun in Illinois
Adults 21+ for handguns; 18+ for long guns. Must hold a valid FOID card issued by the Illinois State Police.
To legally buy a firearm, a person generally must:
- Be legally allowed to possess firearms under federal law (18 U.S.C. § 922)
- Meet the minimum age requirements
- Provide valid government-issued photo ID when purchasing from a licensed dealer
- Not be a prohibited person under federal law
- Be a legal resident of the United States
Federal law prohibits certain individuals from purchasing or possessing firearms. These restrictions apply equally in all 50 states and the District of Columbia.
Individuals prohibited from purchasing or receiving firearms include:
- Convicted felons (any crime punishable by more than one year imprisonment)
- Persons convicted of domestic violence misdemeanors
- Persons subject to qualifying restraining or protective orders
- Unlawful users of or persons addicted to controlled substances
- Persons adjudicated as mentally defective or committed to a mental institution
- Illegal aliens and persons who have renounced U.S. citizenship
- Persons dishonorably discharged from the armed forces
- Fugitives from justice
Attempting to purchase a firearm in Illinois while prohibited is a serious federal crime — punishable by up to 10 years in prison and fines up to $250,000.
Understanding your eligibility is the essential first step before buying any firearm in Illinois.
Age Requirements for Buying a Gun in Illinois
21
years old to purchase handguns from a dealer
18
21
21
Who Can Legally Buy a Gun in Illinois?
- Be legally allowed to possess firearms under federal law (18 U.S.C. § 922)
- Meet the minimum age requirements (21+ for private transfers; 21+ for handguns from dealers)
- Provide valid government-issued photo ID when purchasing from a licensed dealer
- Not be a prohibited person under federal law
- Be a legal resident of the United States
- Convicted felons
- Persons convicted of domestic violence misdemeanors
- Persons subject to qualifying restraining orders
- Unlawful users of controlled substances
- Persons adjudicated mentally defective
- Illegal aliens and persons who have renounced citizenship
- Persons dishonorably discharged from the armed forces
- Fugitives from justice
Buying a Gun from a Licensed Dealer in Illinois
Typical process when buying from a dealer:
In most cases the background check is completed quickly. Illinois has a waiting period: 72 hours for handguns; 24 hours for long guns.
How to Buy a Gun from a Private Seller in Illinois
Illinois requires a background check for private firearm transfers. Both parties must go through a licensed FFL dealer to complete the check. Direct person-to-person transfers without a background check are illegal in Illinois.
Private firearm purchases are common when:
- Buying a used firearm from another gun owner
- Purchasing from a collector or at a gun show
- Buying from a friend or family member
Both buyers and sellers in a private transaction remain responsible for complying with federal firearm laws. The buyer must be legally eligible to receive the firearm.
Although a bill of sale is not legally required, GunTransfer generates one automatically. The FFL dealer background check record plus the GunTransfer bill of sale gives both parties complete documentation.
ILLINOIS GUN PURCHASE QUICK REFERENCE
| PURCHASE TYPE | BACKGROUND CHECK | WAITING PERIOD | KEY NOTES |
|---|---|---|---|
| Licensed Dealer | Required — ISP check | 72 hrs (handgun) / 24 hrs (long gun) | FOID required. ISP Point of Contact. |
| Private Sale | Required — FOID + ISP check | 72 hrs / 24 hrs | FOID verification AND ISP check required. Records retained 10 years. |
| Online Purchase | Required at receiving FFL | 72 hrs / 24 hrs | Ships to Illinois FFL. Must comply with IL assault weapons law. |
| Assault Weapons | Prohibited | Prohibited | Banned under Illinois 2023 Protect Illinois Communities Act. |
| No valid FOID | Prohibited | N/A | Cannot buy any firearm or ammunition without a valid FOID card. |
Step-by-Step Guide on How to Buy a Gun in Illinois
Whether buying from a dealer or a private seller, the typical process for legally purchasing a firearm in Illinois includes the following steps.
1
Obtain a FOID card
2
Choose the firearm
3
Go to a licensed FFL dealer
4
Complete all paperwork
5
Wait the required period
6
Take possession and document
Why Many Buyers Use GunTransfer
Private firearm purchases are legal in most states, but without documentation there is no proof of exactly when you took ownership — which can matter if the firearm is later reported stolen or connected to an incident that occurred before your purchase.
Establish a clear record of the firearm’s serial number and description
Document the exact date you took legal ownership
Protect yourself if the firearm was previously involved in an incident
Demonstrate responsible, law-abiding firearm ownership
For buyers, a signed GunTransfer bill of sale is proof that you own the firearm as of a specific date — critical if it is ever lost, stolen, or traced. GunTransfer makes this documentation simple for every private purchase in Illinois.
Documents Required to Buy a Gun in Illinois
When purchasing a firearm from a licensed dealer in Illinois, buyers must provide:
- A valid government-issued photo ID (driver's license or state ID)
- Current residential address
- Completed ATF Form 4473 (the dealer provides this)
Private firearm purchases in Illinois must also go through a licensed dealer for the background check. GunTransfer to document the transfer. GunTransfer.com performs a background check on the buyer and generates a complete bill of sale documenting both parties, the firearm details, serial number, sale price, and date — giving both buyer and seller legal protection.
Waiting Periods and Registration in Illinois
Illinois requires a waiting period of 72 hours for handguns; 24 hours for long guns for firearm purchases. You must wait this period before you can take possession of the firearm after purchase approval.
Illinois does not require firearm registration for firearms owned by private citizens. You are not required to register your newly purchased firearm with the state.
While no state registration is required, maintaining your own records — including a GunTransfer bill of sale — is a smart practice that documents your lawful ownership.
Interstate Gun Purchases
- Handguns purchased from an out-of-state seller must be transferred through a licensed Illinois FFL dealer who will conduct the required background check before releasing the firearm.
- Long guns (rifles and shotguns) may sometimes be purchased out of state if the purchase complies with the laws of both Illinois and the seller's state.
- You may never take direct possession of a handgun from a private out-of-state seller — it must be shipped to a Illinois FFL dealer first.
Illinois Gun Laws Every Buyer Should Understand
Although Illinois has specific firearm purchase laws, buyers should still understand several important regulations. Key rules include:
- FOID card required to purchase, possess, or buy ammunition in Illinois — no FOID means no gun
- 72-hour waiting period for handguns; 24-hour waiting period for long guns
- Private sellers must verify FOID and run ISP background check — records retained 10 years
- Illinois enacted a broad assault weapons ban in 2023 under the Protect Illinois Communities Act
- Chicago has additional restrictions beyond state law
Responsible Firearm Ownership
Buying a firearm comes with important ongoing responsibilities. Responsible gun owners should:
Store firearms securely and away from unauthorized access
Follow all firearm safety rules at all times
Stay informed about Illinois and federal firearm laws
Keep records of firearm purchases and transfers
When purchasing firearms privately in Illinois, keeping a GunTransfer bill of sale is one of the simplest steps a responsible buyer can take. GunTransfer performs a background check on the buyer and generates a complete, signed record that both parties keep.
Frequently Asked
Questions
What is a FOID card and do I need one?
Is there a waiting period in Illinois?
Do private gun sales in Illinois require a background check?
What is Illinois's minimum age to buy a gun?
Explore All GUN Laws across the country
50 State Guides
How to Buy a Gun by State →How to Sell a Gun by State →Gun Transfer Laws by State →Background Check Laws by State →Private Gun Sale Laws by State →Gun Waiting Period Laws by State →Gun Inheritance Laws by State →Ready to Transfer ?
Illinois Firearm Purchase Resources: ATF — Identifying Prohibited Persons | ATF — Brady Law & 3-Day Default Rule | FBI NICS | Giffords — Illinois Gun Laws | ATF State Laws & Ordinances
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Legal Disclaimer
The information on this page is provided for general educational purposes only and does not constitute legal advice. Firearm laws may change and may vary depending on individual circumstances. Always consult official state resources or a qualified professional for guidance.
Legal Disclaimer
The information on this page is provided for general educational purposes only and does not constitute legal advice. Firearm laws may change and may vary depending on individual circumstances. Always consult official state resources or a qualified professional for guidance.
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