Illinois fishing laws require anyone 16 or older to carry a valid Illinois Department of Natural Resources (IDNR) fishing license on public waters, add a separate stamp for trout or salmon, and follow gear, catch, and species rules that shift from lake to lake. Break them and you’re looking at anything from a petty-offense fine to a Class 3 felony, and a suspension here follows you into 39 other states.
Who Needs a License and What It Costs
The IDNR administers licenses under the Fish and Aquatic Life Code. For the 2026 license year:
- Resident annual: $15.50
- Resident 3-year: $44.00
- Resident lifetime: $435.50
- Resident 24-hour: $5.50
- Resident first-time (no license in the past 10 years): $5.50
- Non-resident annual: $31.50
- Non-resident 3-day: $15.50
- Non-resident 24-hour: $10.50
- Resident sportsmen’s combination (hunting/fishing): $26.25
Residents 65 and older pay $7.75 for an annual senior license. At 75, the “super senior” price drops to $1.50. Three-year versions of both are available at proportional savings.2Illinois Department of Natural Resources. Senior Licenses (Age 65 and Over) Licenses are sold through the IDNR’s online portal and at authorized vendors statewide.
Who Can Fish Without a License
Several groups are exempt under the Fish and Aquatic Life Code itself, so a conservation officer cannot override them:
- Children under 16.
- Illinois residents with a Class 2 disability under the Illinois Identification Card Act, using a valid Person with a Disability Identification Card as proof.
- Veterans certified by the U.S. Department of Veterans Affairs with at least a 10% service-related disability, or receiving a total disability pension.
- Landowners and tenants who actually live on the property, along with children, parents, and siblings permanently living with them, fishing waters on or flowing through that land. Club lakes and lake developments are not covered.
- Illinois residents on ordinary or emergency leave from the U.S. Armed Forces.
Illinois residents returning from mobilization by the President or service abroad get one free year of combined sportsmen’s license and habitat stamp for each year (or partial year) of service. Veterans who don’t qualify for a full disability exemption can still buy a resident fishing license at half price ($7.75).4Illinois Department of Natural Resources. Military Fee Exemptions
The IDNR director designates up to four Free Fishing Days each year when anyone can fish without a license or stamp. For 2026, they run June 19 through June 22. All other regulations, including catch and size limits, still apply.5I Fish Illinois. 2026 Illinois Fishing Information
Trout and Salmon Need a Separate Stamp
A standard fishing license does not cover trout or salmon. Two stamps exist, and which one you need depends on where you’re fishing:
- Inland Trout Stamp: $6.50, required for trout in any inland body of water stocked by the IDNR.
- Lake Michigan Salmon Stamp: $6.50, required for salmon or trout taken from Lake Michigan.
Super senior anglers (75 and older) pay $0.50 for each stamp. Fishing these species without the right stamp is a petty offense.6Illinois Department of Natural Resources. Stamps Newer anglers miss this most often when trout season opens at stocked inland lakes; the stamps are sold wherever licenses are.
Legal and Illegal Gear
Rod and reel, hand lines, trotlines, bank poles, and jug lines are all permitted. Illegal for taking any aquatic life: electricity or electrical devices (lights excepted), explosives, firearms, air guns, chemicals, drugs, snares, wire baskets, wire seines, wire nets, and wire trotlines.7Illinois Department of Natural Resources. 2024 Illinois Fishing Information Electronic fish finders are fine because they locate rather than take fish.
Unattended devices come with responsibilities. Trotlines, bank poles, throw lines, and jug lines must carry a tag with the operator’s name and mailing address, visible to the public at all times. Every unattended device must be checked at least once every 24 hours. Gear left with no bait, rotted bait, dead fish, or otherwise abandoned is a violation and must be pulled from the water.8Legal Information Institute. Illinois Administrative Code Title 17 Section 810.25 – Trotlines
Gill and trammel nets are legal only on the Mississippi River, the Ohio River, and the Illinois River from its mouth upstream to the Highway Route 89 bridge (with adjacent backwaters, but not tributaries). No such net can be shorter than 100 feet. Anywhere else, using one is illegal.9Illinois General Assembly. Illinois Code 515 ILCS 5 – Fish and Aquatic Life Code Article 15
Watch Your Bait
Live red swamp crayfish, the species sold for crawfish boils, are illegal to import or possess alive in Illinois. Using them as bait can escalate from a petty offense to a Class 3 felony with fines reaching tens of thousands of dollars. Only four native crayfish are legal to keep alive: white river, papershell, northern, and devil crayfish.10State of Illinois. Public Reminded Live Red Swamp Crayfish Are Highly Invasive, Illegal
Catch Limits, Size Limits, and Site-Specific Rules
The statewide daily harvest limit for largemouth, smallmouth, and spotted bass is six fish in any combination. There’s no statewide minimum size for bass, though many individual lakes set their own. Channel catfish carry no statewide daily harvest or size limit, though site-specific rules often do.11Legal Information Institute. Illinois Administrative Code Title 17 Section 810.35 – Statewide Sportfishing Regulations
Statewide numbers are defaults. Individual lakes, rivers, and reservoirs often override them with stricter rules, and some waters are catch-and-release only. Keeping a fish from a catch-and-release water is treated the same as exceeding a harvest limit.12Illinois General Assembly. Illinois Administrative Code 810 – Sport Fishing Regulations for the Waters of Illinois Check the IDNR’s annual guide for the water you’re fishing before you go.7Illinois Department of Natural Resources. 2024 Illinois Fishing Information
One rule catches anglers off guard: you cannot dress (fillet or remove the head and tail from) any fish on waters where harvest or size limits apply. That preserves the officer’s ability to verify what you kept.
On Lake Michigan, the daily harvest limit for yellow perch is 15 across the combined waters of Lake Michigan, the Calumet River, and the Chicago River including its branches and the North Shore Channel.5I Fish Illinois. 2026 Illinois Fishing Information
Protected Species
The Illinois Endangered Species Protection Board maintains the official list of protected fish. Endangered species include the lake sturgeon, pallid sturgeon, cisco, and crystal darter. Threatened species include the eastern sand darter, river redhorse, and western banded killifish, among others. Any species listed federally is automatically protected under Illinois law, even if it isn’t named on the state list.13Illinois General Assembly. Illinois Administrative Code 1010 – Illinois List of Endangered and Threatened Fauna
The alligator gar looks the part but is not endangered or threatened in Illinois. Anglers can harvest one per 24-hour period. Commercial harvest is prohibited.14Outdoor Illinois Journal. Gar: Fascinating Fossil Fish
Penalties
Penalties climb by tier. Fishing without a license or without a required stamp is a petty offense: fine-only, no jail, but a record. Taking game fish with a dip net without a commercial license carries a minimum $100 fine plus equipment confiscation.15Justia Law. Illinois Code 515 ILCS 5 – Article 10 Limits Seasons and Methods of Taking
Misdemeanor tiers:
- Class C misdemeanor covers certain commercial fishing and mussel harvesting violations.
- Class B misdemeanor covers gear violations, ignored seasonal closures, exceeding catch limits, and failing to hold required commercial licenses. Up to six months in jail.
- Class A misdemeanor covers illegally releasing aquatic life, unlawful importation of fish, and any fishing violation committed within five years of a license revocation. Up to one year in jail.
Violations involving endangered or threatened species can reach Class 3 felony status, carrying two to five years in prison. Anyone convicted of an unlawful take also owes a civil penalty based on the species’ value, added on top of the criminal fine.16Illinois General Assembly. Illinois Code 515 ILCS 5 – Fish and Aquatic Life Code Article 20
A Suspension Here Reaches 39 Other States
Illinois belongs to the Interstate Wildlife Violator Compact, an agreement among 40 states treating a fishing or hunting violation in one member state as if it happened in every member state. A suspension of your Illinois fishing privileges automatically applies in every other compact state for the same period, and a suspension from another compact state follows you home.17Illinois General Assembly. Illinois Administrative Code 2530 – Section 2530.500 Interstate Wildlife Violator Compact Membership
The compact also handles nonresidents cited in Illinois through personal recognizance rather than roadside arrest. The tradeoff is that failing to resolve the citation triggers a suspension back home. For anglers who fish across state lines, one serious Illinois violation can shut down fishing everywhere at once.