Idaho - ID Gun Laws

No state permit or license is required to buy a rifle, shotgun, or handgun in Idaho. Every dealer purchase runs through the standard federal background check (NICS via Form 4473), with the usual federal age minimums — 18 for a long gun, 21 for a handgun. There's no state waiting period and no state-added purchase restrictions beyond what federal law already requires.

Idaho does not require a background check for private firearm sales or transfers between Idaho residents. Buying from a private party rather than a licensed dealer means no NICS check, no state permit, and no paperwork trail under state law. Federal law still applies — a private seller may not knowingly transfer to someone they believe is a prohibited possessor.

Idaho follows the standard federal prohibited-persons categories: felony conviction, certain domestic violence convictions or active protective orders, unlawful drug users, individuals adjudicated mentally defective or committed to a mental institution, fugitives from justice, dishonorable military discharge, undocumented immigration status, and renunciation of U.S. citizenship. Idaho does not layer significant additional state-specific categories on top of the federal list, and the state has no red-flag/extreme risk protective order law.

Legal without a permit for anyone 18 or older who can otherwise legally possess a firearm. Idaho uses the same 18-year-old threshold for open carry as it does for permitless concealed carry — unlike most constitutional-carry states, which set the concealed-carry bar at 21.

Permitless since 2020 under Idaho Code § 18-3302(4)(f) — any U.S. citizen 18 or older who can legally possess a firearm may carry concealed anywhere in Idaho without a permit, background check at the point of carry, or training requirement. Idaho still issues an optional CCW permit for residents who want one, mainly useful for concealed carry reciprocity when traveling to states that don't recognize Idaho's permitless standard.

No permit or license is required to carry a firearm, loaded or unloaded, concealed or openly, in a vehicle in Idaho — the state's permitless carry framework covers vehicle transport the same as carrying on foot. The main restrictions are the same sensitive-location rules that apply anywhere else (see Restricted Locations) and the standard prohibition on possession by someone legally disqualified.

Idaho's restricted-location list is shorter than most states: K-12 schools (with specific statutory exceptions, including for permit holders and for parents picking up or dropping off students), courthouses, and jails/detention facilities are the main categories under state law. Federal restrictions still apply regardless of state law — federal buildings and other federal property remain off-limits under federal statute.

Idaho does not set a comprehensive statewide minimum age for possessing a firearm beyond the federal purchase-age framework (18 for long guns, 21 for handguns through a dealer). Supervised possession and use by minors — for hunting, target shooting, or firearms safety instruction under adult supervision — is common practice and not separately restricted by a dedicated state age-floor statute the way some other states structure it.

None. Idaho has no magazine capacity limit and no assault weapons ban, and state preemption law (Idaho Code § 18-3302J) — reinforced by 2026's SB 1430 — blocks any city or county from creating one locally, with real financial consequences now attached for local governments that try.

Idaho is a stand-your-ground state — under Idaho Code § 19-202A, a person has no duty to retreat from any place they have a right to be before using force, including deadly force, if they reasonably believe it's necessary and are not the initial aggressor. Idaho's castle doctrine goes further with a presumption of reasonableness: a forced or stealthy entry into a home, business, or occupied vehicle is presumed to be felonious, shifting the legal burden in the defender's favor.

Idaho has some of the strongest state preemption in the country. Idaho Code § 18-3302J explicitly states the legislature intends to "wholly occupy the field" of firearms regulation — no county, city, agency, or political subdivision may regulate the sale, acquisition, transfer, ownership, possession, transportation, carrying, or storage of firearms or ammunition. Local governments retain narrow authority to regulate discharge within their boundaries (except for lawful self-defense, lawful hunting, or shooting ranges) and to regulate the location/construction of shooting ranges — nothing broader. As of 2026 (SB 1430), a local government that violates preemption now faces a civil penalty and can be sued directly by an affected citizen, a notably stronger enforcement mechanism than most states have.

Idaho State Police, firearms-related resources: isp.idaho.gov
Idaho Statutes, Title 18, Chapter 33 (full text): legislature.idaho.gov
Your local Sheriff's Office: for optional CCW permit applications
ATF: for federal NFA questions — Idaho does not add state-level restrictions on suppressors beyond federal requirements, and even permits suppressor use while hunting