ADU Rental Restrictions: Honolulu vs Mililani Town
How do adu rental restrictions rules compare between Honolulu, HI and Mililani Town, HI?
Honolulu, HI
Honolulu County
Honolulu prohibits short-term rentals (under 90 days outside resort districts, under 30 days in resort districts) of Bill 7 ADUs under both the recorded long-term rental covenant in LUO Sec. 21-5.730 and Bill 89 (2019) / Bill 41 (2022) STR enforcement. ADUs must be rented for 180 days or longer per the recorded covenant. Hawaii state General Excise Tax (GET) and Transient Accommodations Tax (TAT) apply to rentals.
View full Honolulu rules →Mililani Town, HI
Honolulu County
No data available yet for Mililani Town.
Key Facts Comparison
| Fact | Honolulu | Mililani Town |
|---|---|---|
| Min Lease for ADU | 180 days (recorded covenant) | - |
| Citywide STR Floor | 90 days (Bill 41) | - |
| STR Fine | Up to $10,000/day | - |
| GET Rate (Oahu) | 4.712% | - |
| TAT Rate | 10.25% state + 3% Oahu | - |
Highlighted rows indicate differences between cities.
Honolulu FAQ
Can I rent my Honolulu ADU on Airbnb?
No. Bill 7 ADUs are restricted to leases of 180 days or longer under a recorded covenant. Honolulu's Bill 41 also bans rentals under 90 days outside resort districts. Violations trigger fines up to $10,000 per day and ADU permit revocation.
What taxes apply to my Honolulu ADU long-term rental?
Hawaii General Excise Tax (GET) at 4.712 percent on Oahu applies to all rental income. If you ever rent shorter than 180 days (which would violate your covenant), the 10.25 percent state Transient Accommodations Tax plus 3 percent Oahu TAT also apply. Long-term rentals are GET-only.
Mililani Town FAQ
No FAQs available.
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