What are the penalties for cannabis in Illinois?

For adults 21+, possessing within the legal limits (30g flower/5g concentrate/500mg THC for residents, half for non-residents) is legal. Exceeding limits by a small amount is a civil violation with a $100-$200 fine. Over 100g becomes a Class 4 felony (1-3 years). Trafficking over 5,000g is a Class X felony with 6-30 years mandatory prison. Public consumption carries a $100-$250 fine.

Is it illegal to grow weed recreationally in Illinois?

Yes. Illinois is one of the few legal states that prohibits recreational home growing. Growing without a medical card is a civil violation carrying a $100-$200 fine for small amounts (up to 5 plants). Medical patients may grow up to 5 plants over 5 inches in an enclosed, locked area. HB 3498 has been introduced to allow recreational home growing of up to 12 plants.

What happens if you sell weed without a license in Illinois?

Unlicensed cannabis sales carry severe penalties. Under 2.5g is a Class B misdemeanor (6 months, $1,500). The penalties escalate rapidly: 30-500g is a Class 3 felony (2-5 years, $50,000), and over 5,000g is a Class X felony (6-30 years mandatory prison, $200,000 fine). Class X felonies carry no possibility of probation.

Illinois Cannabis Penalties — Fines & Charges

Legal Disclaimer: This information reflects Illinois cannabis law as of April 2026 and is for educational purposes only. It is not legal advice. Laws and regulations change — always verify current rules with the Illinois Department of Financial and Professional Regulation or a qualified attorney. Cannabis remains illegal under federal law.

Last verified: March 2026

Possession Penalties (Over Legal Limits)

For adults 21+, possessing amounts within the legal limits (30g flower/5g concentrate/500mg THC for residents; half for non-residents) carries no penalty. Exceeding those limits triggers the Cannabis Control Act:

Amount (Flower)	Classification	Maximum Penalty
Up to legal limit	Legal	No penalty for adults 21+
Over limit – 100g	Civil violation	$100–$200 fine, no jail, no criminal record
100g – 500g	Class 4 felony	1–3 years prison, up to $25,000 fine
500g – 2,000g	Class 3 felony	2–5 years prison, up to $50,000 fine
2,000g – 5,000g	Class 2 felony	3–7 years prison, up to $100,000 fine
Over 5,000g	Class 1 felony	4–15 years prison, up to $150,000 fine

Trafficking and Distribution Penalties

Unlicensed sale or delivery of cannabis carries significantly harsher penalties than simple possession:

Amount	Classification	Maximum Penalty
Under 2.5g	Class B misdemeanor	Up to 6 months jail, $1,500 fine
2.5g – 10g	Class A misdemeanor	Up to 1 year jail, $2,500 fine
10g – 30g	Class 4 felony	1–3 years, $25,000 fine
30g – 500g	Class 3 felony	2–5 years, $50,000 fine
500g – 2,000g	Class 2 felony	3–7 years, $100,000 fine
2,000g – 5,000g	Class 1 felony	4–15 years, $150,000 fine
Over 5,000g	Class X felony	6–30 years, up to $200,000 fine

Class X Felony = No Probation

At the highest trafficking level (over 5,000g), Illinois imposes a Class X felony — which means a mandatory prison sentence with no possibility of probation. This is the same classification used for armed robbery and aggravated sexual assault.

Under-21 Penalties

Cannabis remains illegal for anyone under 21 in Illinois. Minors face:

Under 10g: Civil law violation — $100–$200 fine (same as exceeding adult limits)
10g – 30g: Class B misdemeanor — up to 6 months jail, $1,500 fine
30g – 100g: Class A misdemeanor — up to 1 year jail, $2,500 fine
Over 100g: Class 4 felony and above, escalating with amount
Sale to a minor: Enhanced penalties for the adult seller, increased by one class

Public Consumption Penalties

Public consumption of cannabis is prohibited under both the CRTA and the Smoke Free Illinois Act (410 ILCS 82):

Smoking/vaping in public: Civil penalty, $100–$250 fine
Near schools or school grounds: Enhanced penalties, Class A misdemeanor
In a vehicle (driver): DUI charges — see DUI guide
In a vehicle (passenger): Open container — Class A misdemeanor

Concentrate and Edible Penalties

Concentrate penalties follow a separate schedule with lower weight thresholds, reflecting the higher potency. Exceeding the 5g concentrate limit (residents) or 2.5g (non-residents) triggers the same escalating felony structure as flower but at lower weights.

Recreational Home Growing Penalty

Unlike most legal states, recreational home growing is prohibited in Illinois. Growing cannabis without a medical card is a civil violation carrying a $100–$200 fine for small amounts (up to 5 plants). Larger operations face criminal cultivation charges. See our home growing guide for details.

Illinois Cannabis Penalties