Overview
Heavier vehicles feel this hardest - a 9,000-lb box truck on Oʻahu owes over $600 a year just in combined weight tax, on top of the flat fees. The calculator below runs your exact county and weight class, including the annual safety inspection every vehicle needs before it can register.
01 - Official fees
Hawaii registration fees fees at a glance
| Fee | Amount | Notes |
|---|---|---|
| State registration fee | $46.00 | |
| State highway beautification fee | $7.00 | |
| State emblem fee | $0.50 | |
| State weight tax (≤4,000 lbs) | 1.75¢/lb | |
| State weight tax (4,001–7,000 lbs) | 2.00¢/lb | |
| State weight tax (7,001–10,000 lbs) | 2.25¢/lb | |
| State weight tax (over 10,000 lbs) | $300 flat | |
| County registration fee | $20.00 | plus $0.50 county emblem |
| County weight tax - Honolulu | 7.0¢/lb (7.5¢ commercial) | $12 minimum |
| County weight tax - Maui | 3.5¢/lb (5.36¢ commercial) | $12 minimum |
| County weight tax - Kauaʻi | 2.0¢/lb (3¢ commercial) | $12 minimum |
| County weight tax - Hawaiʻi County | 1.25¢/lb (2.5¢ commercial) | $12 minimum |
| Safety inspection (required before registering) | $25.75 | |
| EV road-use surcharge | $50/yr | or $0.008/mile |
Figures verified June 2026 against official sources (listed below). Always confirm the final amount with your county motor vehicle registration office (Honolulu, Maui, Hawaiʻi, or Kauaʻi) - counties can add small local fees.
02 - Step by step
How to register a vehicle in Hawaii
- 1
Get a Hawaii no-fault auto insurance policy - the county checks it electronically at registration.
- 2
Take the vehicle to a licensed safety inspection station and get the current-year inspection sticker.
- 3
Bring the title, proof of insurance, the inspection certificate, and ID to your county vehicle registration office.
- 4
The clerk weighs or looks up the vehicle's registered weight to calculate both the state and county weight tax.
- 5
Pay the combined bill in one transaction - your plate and decal are issued on the spot in most counties.
03 - Same state, other costs
More Hawaii vehicle costs
04 - Common questions
Hawaii registration fees FAQ
How much does it cost to register a car in Hawaii?
It depends heavily on your county. A 4,000-lb sedan runs about $336/year on Oʻahu (weight tax alone is $280), versus roughly $164/year in Hawaiʻi County for the identical vehicle. The $46 state fee, $7 beautification fee, and $20 county fee are the same everywhere - the weight tax is what swings so widely.
Why does the same car cost so much more to register on Oʻahu?
Honolulu's county weight tax is 7.0¢ per pound - by far the highest of the four counties - compared to 3.5¢ in Maui, 2¢ in Kauaʻi, and 1.25¢ in Hawaiʻi County. It's set by City Council ordinance, not the state, and has been proposed for a cut in recent legislative sessions.
Is there a minimum weight tax even for a light car?
Yes - every county's ordinance sets a $12 minimum county weight tax, so even a very light vehicle (or a motorcycle) never pays less than that on the county side, regardless of the per-pound rate.
What's the safety inspection and is it separate from registration?
Every vehicle needs a passing annual safety inspection ($25.75 for cars and trucks, $17.75 for motorcycles and trailers) before the county will register or renew it - you get it at a licensed inspection station, not the registration counter, and bring the sticker/certificate with you.
Do electric vehicles pay less because they skip gas tax?
No - they pay more. EVs owe a $50 annual state road-use surcharge (or, since July 2025, an optional $0.008-per-mile alternative) on top of the same registration and weight tax everyone pays. Maui County adds its own $100 EV fee and $50 hybrid fee on top of that.
How is 'weight' determined for the tax - is it the GVWR or curb weight?
Hawaii uses the vehicle's actual registered (net/curb) weight, not the gross vehicle weight rating (GVWR) manufacturers print for towing capacity. It's listed on your current registration or the manufacturer's door-jamb sticker.
05 - Receipts
Official sources
Every number on this page comes from these documents - check them yourself.