Short-term rentals in Idaho Falls and Rexburg: the gateway to Yellowstone

Eastern Idaho is a gateway market. Idaho Falls and Rexburg sit on the main routes to Yellowstone and Grand Teton, so summer brings a steady stream of road-trip families who need a practical night or two before the parks. The rest of the year runs on different engines: university events and graduations at BYU-Idaho in Rexburg, hospital and energy-sector travel in Idaho Falls, and visiting relatives. Stock is mostly single-family homes, basement apartments and townhouses, often favored by larger families who want a kitchen and several bedrooms.

Idaho's 2026 preemption, in plain terms

Since July 1, 2026, House Bill 583 has amended Idaho Code § 67-6539. Cities and counties may no longer require a license, permit, registration or special fee for short-term rentals, and they may not impose caps, owner-occupancy, minimum stays, additional parking, neighbor notification or inspections that other homes do not face. Any local permit step you may have read about in older guides should be treated as obsolete unless the city confirms it survives.

What the law still allows is a short safety list: smoke alarms in every sleeping area, a fire extinguisher and carbon monoxide detector on each level, escape ladders for upper sleeping areas where required, an occupancy limit in line with the building code, and a written emergency contact for guests. Ordinary noise, parking and nuisance rules apply to your guests exactly as they apply to residents.

Tax registration

• Idaho sales tax and the state travel and convention tax apply to stays of 30 days or less.
• Properties inside the Idaho Falls Auditorium District also carry that district's lodging tax.
• Platforms collect on their bookings; for direct reservations you need your own registration with the State Tax Commission.

Where the real limits lie

Newer subdivisions in both cities often have HOAs with covenants on rentals, and state preemption does not touch them. Basement units must meet egress rules to be used as sleeping space. Winters are long and cold; heating and snow removal belong in the budget.

Our advice

Design for large families on the move: easy self check-in, parking for a trailer or second car, laundry, and clear directions to the park routes. Keep the safety devices listed in the statute documented with photos. We study every request and tell you honestly whether and how we can help.

Where preemption leaves the risk

House Bill 583 removed the city from the equation, which concentrates every remaining restriction in two places the statute does not touch. The first is the covenant: a newer subdivision in Rexburg or on the Idaho Falls fringe can forbid outright what the state has just protected, and the association enforces it privately, without any of the notice a city process would give. The second is the building code, which still sets the occupancy limit and still decides whether a basement bedroom counts as sleeping space at all. A property that fails on egress has lost bedrooms, not paperwork.