Oahu has some of the strictest vacation rental rules in the country. For an investor the rules decide two things: what a property can earn, and what income a lender will count toward the loan. This is a summary for investors, not legal advice. Rules and court rulings change, so confirm the current position for a specific address with the City’s Department of Planning and Permitting.
The basic rule
Outside resort-zoned areas, Honolulu does not allow residential rentals of less than 30 days, and a 2025 ordinance raises that minimum to 90 consecutive days for many properties. Stays shorter than that are legal mainly in resort districts and in units with a nonconforming use certificate or city registration. The city has fined owners for advertising rentals that break the minimum.
Where shorter stays are legal
- Resort-zoned areas. Much of Waikiki, Ko Olina and Turtle Bay are zoned for resort use, where condos and condotels can rent by the night under the building’s rules.
- Nonconforming use certificates. A limited number of homes outside resort zones hold certificates, many dating from before 1990, that allow short stays. The certificate must be current and renewed.
- Registered bed and breakfast homes and transient vacation units. The city has a registration program with its own limits and requirements.
Inside Waikiki, buildings are not all the same. Some are resort-zoned and others are apartment-zoned. Confirm the zoning and the association’s rules for the specific building.
Taxes on rental income
Hawaii taxes rental income separately from the property itself. Long-term rentals pay general excise tax (4.5% on Oahu, including the county surcharge). Stays of less than 180 days also pay the state transient accommodations tax, which rose to 11% on January 1, 2026, plus Oahu’s 3% county transient accommodations tax. Build these into your income projections.
How a lender counts the income
| Property | Income we use |
|---|---|
| Resort-zoned condo or condotel with rental history | 12 months of history |
| Resort-zoned unit without history | AirDNA projections, counted at about 70 to 80% |
| Home with a valid nonconforming use certificate | History or projections, once the certificate is confirmed |
| Any other home | Long-term market rent |
Common questions
Only if it may legally rent for short stays: in a resort-zoned area, or with a valid nonconforming use certificate or city registration. Most homes on Oahu must be rented for at least 30 days, and many for at least 90.
Mainly in resort-zoned parts of Waikiki, Ko Olina and Turtle Bay, and at properties with a nonconforming use certificate or city registration.
We will where the property may legally rent for short stays, using AirDNA projections counted at about 70 to 80%. Otherwise we use long-term rent.
See how rentals are financed on the DSCR rental loans page.