Is a Montana Resident Permit Valid in Illinois?

Why

• Illinois does not recognize any out-of-state carry permit.

ISP (official 2025 brochure): 'Illinois does not recognize concealed carry licenses from other states.' Sole carve-out: a resident of another state with a valid concealed carry license from their home state may carry a concealed firearm within a vehicle while traveling through Illinois; if the vehicle is left unattended the firearm must be stored in a locked vehicle or locked container out of plain view (430 ILCS 66).

Carry rules in Illinois

Your Montana habits may not match Illinois's law. Check these three areas before you carry there.

• Disclosure is on-demand only: upon an officer's request during a stop, the licensee or qualifying non-resident must disclose that they possess a concealed firearm, present the license on request, identify the firearm's location, and permit the officer to secure it for the stop (ISP brochure, per the Concealed Carry Act).
• Illinois limits magazine capacity to 15 rounds — a limit that applies to visitors, and one of the easiest laws to break by accident.
• Illinois is not a permitless-carry state: concealed carry there requires a permit Illinois recognizes.
• Illinois CCL holders may carry loaded and concealed in a vehicle; non-residents with a valid home-state license may carry loaded/concealed only within a vehicle; everyone else must transport firearms unloaded and enclosed in a case (or broken down / not immediately accessible).

Off-limits places in Illinois

Illinois bans carry in 6 kinds of places. The first on the list:

• Schools and school property
• All state government buildings (posted prohibited areas), courts

See all 6 places you can't carry in Illinois →

Montana vs Illinois: what changes at the state line

Crossing from Montana into Illinois changes 4 rules: permitless carry (Yes → No); magazine limit (None → 15 rounds); out-of-state permits honored (43 states → None); open carry (Yes, no permit → No).

Going the other way, an Illinois resident permit in Montana: recognized — and permitless carry applies.

Driving on from Illinois

How a Montana resident permit fares in the states bordering Illinois:

• Indiana — Recognized — and permitless carry applies
• Iowa — Recognized — and permitless carry applies
• Kentucky — Recognized — and permitless carry applies
• Missouri — Recognized — and permitless carry applies
• Wisconsin — Recognized — carry with your permit

Check a whole route with the Trip Checker →

Frequently asked questions

Does Illinois honor a Montana non-resident permit?

Montana does not issue non-resident carry permits (permit requires at least 6 months' Montana residency, US citizenship or lawful permanent residence, and Montana ID (MCA 45-8-321; MT DOJ). No non-resident permits are issued), so the question does not arise.

Can an Illinois resident permit holder carry in Montana?

Recognized — and permitless carry applies. Reciprocity is decided by the destination state, so the answer in this direction depends on Montana's law, not Illinois's.

Where does Illinois publish its official reciprocity list?

Illinois publishes its recognition policy on an official state page, linked in the sources on this page. That page is the authority — check it shortly before travel, because recognition lists change without much notice.