Kenai Peninsula Borough, AK Short-Term Rentals: Taxes & Fees (2026)
Key Facts
- Taxable trigger
- "Temporary lodging": stays under one month
- Unit definition
- Room/unit rented at a flat rate, any occupancy
- Registration
- Certificate required before first booking, § 5.18.300
- Tax rate
- Up to 3 percent general sales tax
- Filing frequency
- Quarterly returns, § 5.18.500
- Failure-to-register penalty
- Civil penalty up to $1,000
Summary
A short-term rental in the unincorporated Kenai Peninsula Borough is taxed as "temporary lodging": any stay booked for less than one month. The host is a "seller" under the borough sales tax code, must register with the borough, and collects tax on each rented unit.
"Temporary lodging" is defined as a service to provide any lodging of less than one month. ... "Unit" means a room or single unit that is customarily advertised and rented at a flat rate regardless of the number of occupants. ... All sellers shall file with the borough an application for a certificate of registration, on a form provided by the borough, prior to commencing business, or the opening of an additional place of business.
Full Breakdown
The borough's sales tax chapter defines the terms that pull a short-term rental into its tax net. Kenai Peninsula Borough Code § 5.18.900 defines "temporary lodging" as a service to provide any lodging of less than one month, and defines "unit" as a room or single unit that is customarily advertised and rented at a flat rate regardless of the number of occupants, so a whole cabin, guest room or accessory dwelling booked nightly counts as a unit even if several people stay in it.
Because an STR host is furnishing lodging for compensation, the host is a "seller" under § 5.18.397 [sic, § 5.18.900] and must file for a borough certificate of registration under § 5.18.300 before accepting a booking, opening the platform listing, or adding a second unit, and must post that certificate at the rental. Registered hosts collect the borough's general sales tax (up to 3 percent under § 5.18.100) on each night's rent, with each unit's nightly rental computed as its own transaction rather than capped once per booking.
Hosts must file quarterly sales tax returns under § 5.18.500 unless the borough approves a different schedule, and a stay that runs a full month or longer for the same tenant falls outside "temporary lodging" and is instead treated as a real property rental subject to the ordinary $500-per-month rental cap. Fees for late filings, audit estimates and reinstatement to the active seller roll are set in the borough's Schedule of Rates, Charges and Fees under § 5.18.670.
Violations & Fines
An STR host who fails to register is subject to a civil penalty up to $1,000 under § 5.18.610, on top of any unpaid tax, interest, costs and attorney fees the borough recovers. A host who fails to file a return or remit collected tax owes a civil penalty of 5 percent per month up to 10 percent, plus 10 percent annual interest, under § 5.18.620(B), and two consecutive missed filings result in removal from the active roll, requiring a reinstatement fee to resume renting.
Frequently Asked Questions
Does a short-term rental count as "temporary lodging" under borough tax law?
Do I need to register my rental with the borough before listing it?
What if my guest stays a full month or longer?
How often must an STR host file sales tax returns?
Sources & Official References
Other rules in Kenai Peninsula Borough
How Kenai Peninsula Borough compares: Cities with the Highest Short-Term Rental Taxes·Compare Kenai Peninsula Borough to another location·View the Alaska short-term rentals overview
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