Idaho gun laws: a plain-English guide for buyers

Idaho is one of the least restrictive states in the country for firearm owners. There is no permit to purchase, no registration, no state waiting period, no magazine limit and no state list of banned rifles, and since 2016 most adults have been able to carry a concealed firearm without a license. That does not mean there are no rules at all. This guide covers buying, owning, carrying and transporting firearms in Idaho as of September 2026. It is general information, not legal advice; when in doubt, read the statute or ask an Idaho attorney.

Buying from a licensed dealer

Every firearm you order from us ships to a federally licensed dealer that you choose at checkout. At the counter you show a valid photo identification, complete ATF Form 4473 and the dealer runs a federal NICS background check. Federal law sets the dealer minimum age at 18 for rifles and shotguns and 21 for handguns. Idaho adds no purchase permit, no firearm owner identification card and no registration with any state or local agency.

There is also no state waiting period. Once the NICS check returns a proceed, you can take the gun home that day. If the check comes back delayed, federal rules apply and many dealers hold the firearm until they get a final answer rather than release it on the three-business-day default. Ammunition, optics, magazines and most parts ship straight to your door.

Private sales

Idaho does not require a background check when one Idaho resident sells a firearm to another in a private sale, and there is no paperwork to file with the state. The rules that do apply:

• Prohibited buyers: federal law makes it a crime to sell or give a firearm to someone you know or have reasonable cause to believe cannot legally have one.
• Out-of-state buyers: federal law requires a sale between residents of different states to go through a licensed dealer, which matters on the Oregon, Washington, Utah, Nevada, Wyoming and Montana lines.
• Minors: Idaho Code 18-3302C makes it unlawful to sell or transfer most firearms to a minor under 18 without the written consent of a parent or guardian, with exceptions for hunting and target shooting under supervision.

Plenty of private sellers still meet at a dealer and pay for a transfer, because the paper trail protects both sides.

Age rules

At a dealer you must be 21 for a handgun and 18 for a long gun, which is federal law, not Idaho law. Carrying a concealed firearm without a license under Idaho Code 18-3302(4)(f) is open to anyone over 18 who is a United States citizen or a current member of the armed forces and is not otherwise disqualified. Idaho also issues a concealed weapons license to applicants between 18 and 21 under Idaho Code 18-3302(20); that license expires on the holder's twenty-first birthday and then renews as an enhanced license. Our Idaho concealed weapons license guide walks through both versions.

What Idaho does not regulate

Idaho has no assault weapon law, no magazine capacity limit, no registry, no ammunition permit and no state red flag statute. Standard-capacity magazines, threaded barrels, adjustable stocks and semi-automatic rifles are all ordinary products here. If you ship a magazine or a rifle into a state that limits them, the destination state's rules apply, so check before you order.

Idaho Code 18-3302J is the state preemption statute, and it is unusually strong: the legislature says it intends to wholly occupy the field of firearms regulation. No county, city, agency or board may adopt or enforce any ordinance regulating the sale, acquisition, transfer, ownership, possession, transportation, carrying or storage of firearms or ammunition. That is why Boise, Meridian, Nampa, Idaho Falls and Coeur d'Alene all follow the same purchase rules, and why an ordinance that tries to go further is void and subject to an injunction.

Cities and counties may still regulate where you discharge a firearm inside their boundaries. Those ordinances cannot reach lawful self-defense, a licensed sport shooting range, or, in the case of counties, lawful hunting, a landowner and guests shooting safely on their own ground, or target shooting on public land where nobody is endangered.

Where carry is off-limits

State and federal law keep firearms out of courthouses, jails, secure areas of airports, federal buildings and the grounds of public schools, with narrow exceptions. Idaho Code 18-3302D covers school property, and an Idaho enhanced concealed weapons license carries weight at public colleges and universities under Idaho Code 18-3309. Private property owners can still ask you to leave, and in that case the trespass statute is what applies.

Transport in a vehicle

Because of the permitless carry provision, most adults may have a loaded handgun concealed in a vehicle in Idaho without a license. A shotgun or rifle in plain view, a firearm that is unloaded and cased, and a firearm concealed in a motor vehicle are all listed separately in Idaho Code 18-3302(4) as outside the license requirement. If you are heading to the mountains to hunt, remember that Fish and Game weapon rules, not the concealed carry statute, govern what you may hunt with.

Hunting and the weapon rules

Idaho Fish and Game sets its own restrictions for big game. No rimfire rifle or rimfire handgun may be used for deer or elk, no firearm that weighs more than 16 pounds with scope, sling and attachments, and no shot smaller than #00 buck. Short-range weapon seasons, which cover several units near the Snake River, are limited to shotgun slugs and buckshot, muzzleloaders, bows, crossbows, straight-wall centerfire handguns and large-caliber pre-charged airguns. See our elk and deer rifle guide for the 2026 season dates and cartridge choices, and the upland and waterfowl guide for bird seasons and nontoxic shot.

Buying online and picking up locally

The practical version is short. Order here, pick the dealer nearest you, and the firearm travels to that dealer. You do the 4473 and the NICS check there, pay any transfer fee the dealer charges, and take the gun home the same day. Our Boise buying guide covers the Treasure Valley end of it, and the city pages cover the rest of the state. Ready to browse? Start at the catalog.

General information, not legal advice. Current as of September 2026. Laws change; check the official source before you act.