How much cannabis can you legally have in Illinois? The limits doubled in June.

This article is general information, not legal advice. Laws change and facts differ; for your situation, talk to a lawyer licensed in Illinois.

Illinois doubled the amount of cannabis adults may legally possess when Gov. JB Pritzker signed Senate Bill 3222, now Public Act 104-0463, on June 12, 2026. The new limits took effect that day, according to the Illinois Department of Financial and Professional Regulation's SB 3222 fact sheet and the amended statute, 410 ILCS 705/10-10.

The limits now

Illinois residents 21 and older may possess:

• 60 grams of cannabis flower (up from 30)
• 10 grams of cannabis concentrate (up from 5)
• 1,000 milligrams of THC in cannabis-infused products (up from 500)

Non-residents 21 and older (visitors) may possess half that:

• 30 grams of flower (up from 15)
• 5 grams of concentrate (up from 2.5)
• 500 milligrams of THC in infused products (up from 250)

The statute says the limits are "cumulative." IDFPR's purchaser FAQ explains that an adult may have some of each type at once, as long as each stays within its own cap.

The law also bars anyone from knowingly obtaining, trying to obtain, or possessing, from a dispensary or craft grower, an amount that would put them over the limit. Section 10-10(d) says that counts cannabis a person cultivated under the Act or obtained as a registered medical patient, provisional patient, caregiver or Opioid Alternative Patient Program participant.

Home growers and patients

Under section 10-5(b), home cultivation is limited to registered qualifying patients (our explainer). Under section 10-10(a)(4), a registered patient may keep more than 60 grams of cannabis produced by those plants, but anything over 60 grams must remain secured within the residence or residential property where it was grown. Patients, provisional patients, caregivers and Opioid Alternative Patient Program participants also may not obtain or possess more than their "adequate medical supply."

Under 21

None of this applies to anyone under 21. Under section 10-15, a person under 21 with cannabis in their possession is guilty of a civil law violation under section 4(a) of the Cannabis Control Act. If the person was in a motor vehicle at the time, the Secretary of State may suspend or revoke their driving privileges. The section also makes it a Class A misdemeanor, with a fine of at least $500, for a parent or guardian to knowingly permit an under-21 invitee to violate it on property or in a vehicle under the parent's control.

A state FAQ that hasn't caught up

IDFPR's consumer page links to a PDF called FAQs About Purchasing Adult Use Cannabis. When we read it on October 19, it still listed the pre-June limits for residents (30 grams of flower and 5 grams of concentrate, plus the infused-product cap) and for non-residents (15 grams and 2.5 grams). The statute and IDFPR's SB 3222 fact sheet both show the higher figures. The statute is the law.

Where you can carry it is a separate question

The possession limits say how much you may have, not where. Rules for vehicles, public places and other locations are in section 10-35 (our explainer).

Sources

• 410 ILCS 705/10-10, possession limit
• 410 ILCS 705/10-15, persons under 21
• IDFPR, SB 3222 fact sheet (PDF)
• IDFPR, purchaser FAQ (PDF)

More state rules: see our Illinois rules tracker.

Related: our rules in every state we track.

Drafted with AI assistance from primary sources. Written and edited by The Highline Report newsroom under Monsaur Othman's editorial standards. Read how we use AI, our editorial policy and our corrections policy.

For adults 21+. News and education only. General information, not legal advice. Nothing here is a health claim or an offer to sell.