Every county in Hawaii finalized its property tax rates for the fiscal year that began July 1, and the pattern this time is impossible to miss: local governments are using the tax code itself to steer investment property owners toward long-term rentals and away from short-term ones. If you own, or are shopping for, a second home or income property anywhere in the islands, the classification your property falls under now matters just as much as its purchase price. Here's what actually changed county by county and how to use it to your advantage.

The Big Island Now Has a Middle Tier Built for Landlords

Hawaii County's council voted in May to trim the owner-occupied rate from $5.95 to $5.75 per $1,000 of net taxable value, a small break aimed at cushioning homeowners from rising assessments. The more consequential move is what the county did with its long-term rental classification, first created back in 2024 for units leased to the same tenant for six months or more. That class now sits at $7.75 per $1,000, while non-owner-occupied properties run $13.60 to $15. For an investor deciding between renting a unit nightly or to a local tenant year-round, that gap alone can be worth thousands of dollars a year, before factoring in the county's new top tier of $17 per $1,000 on the portion of any second home valued above $4 million.

Maui Is Making the Short-Term Rental Math Brutal

Maui's rate structure draws an even sharper line. Owner-occupied homes still start as low as $1.65 per $1,000, and long-term rentals begin around $2.90, but short-term vacation rentals face rates starting at $13 and climbing to $17 per $1,000. Layer that on top of Maui's ongoing rezoning push, which is already converting thousands of apartment-zoned vacation units back into long-term housing over the next several years, and the message from the county is consistent: nightly rentals will keep getting more expensive to carry, while long-term leasing gets cheaper every budget cycle.

Oahu and Kauai Are Playing It Steadier

Honolulu kept its structure comparatively simple this cycle, with owner-occupants at $3.50 per $1,000 against a $120,000 homeowner exemption, and non-owner-occupied rates ranging from $4 up to $11.40 depending on assessed value. Kauai similarly held its rates relatively flat, with owner-occupied properties taxed between $2.59 and $3.50 per $1,000. Neither island is chasing the aggressive short-term rental penalties Maui and the Big Island have adopted, which is worth keeping in mind if you're comparing carrying costs across islands for an investment purchase rather than assuming Hawaii property taxes are uniformly low everywhere.

What This Means for Your Bottom Line

Run a real example: a $1.5 million home taxed as an Oahu owner-occupant with the full exemption comes in around $4,800 a year. The identical home held as an unclassified investment property on Oahu runs closer to $9,700. Put that same value into a Maui short-term rental and the bill can top $17,000 annually, more than triple what a long-term lease on the same property would cost the owner. Those are not rounding errors in a cash flow model, and they should factor into any offer price or rental strategy you're weighing this year, especially on Maui and the Big Island.

What To Do Before the Next Deadline

If you already own a rental property, the fastest way to lower your bill is often reclassification rather than a sale: converting a short-term unit to a documented long-term lease can cut your tax rate nearly in half on both Maui and the Big Island. If you're a new owner-occupant, don't assume your exemption was filed automatically at closing. A few dates worth putting on your calendar:

  • Oahu homeowner exemption deadline: September 30
  • Maui and Big Island homeowner exemption deadlines: June 30 and December 31 (twice yearly)
  • Oahu assessment appeal deadline: January 15
  • Maui assessment appeal deadline: April 9

Miss the exemption window and you'll pay the higher, unclassified rate for a full year regardless of how you actually use the property. Hawaii's counties are increasingly using property tax classification as a policy lever, not just a revenue tool, and that trend shows no sign of slowing. Whether you're buying your first home here or managing a portfolio of rentals across islands, it's worth checking your property's current classification and confirming you're not overpaying simply because a form never got filed. A quick conversation with your agent or the county tax office now can save real money come the next billing cycle.