What you need to do to renew in Hawaii

Hawaii lets you renew your vehicle registration by mail, online, or in person at any county office. You do not have to renew on your birthday — Hawaii registration runs on a calendar-year basis, so all registrations expire on December 31. The state sends renewal notices about 30 days before expiration, but you can renew up to 90 days early if you want to get it done sooner.

The fastest method is online through the Hawaii Department of Transportation website, which takes about 10 minutes if your vehicle has passed inspection and you have your current registration document. By mail takes about two weeks. In-person renewal at a county office is when ready, but you will need to bring your vehicle for a safety and emissions inspection unless your vehicle is exempt.

Key Takeaways

  • Hawaii registration expires December 31 each year for all vehicles, and you can renew online, by mail, or in person at your county office.
  • Online renewal is fastest if your vehicle has passed inspection, but you will need your current registration document and a valid payment method.
  • Mail renewal requires the same documents as online but takes about two weeks, while in-person renewal is when ready if your vehicle passes inspection on the spot.
  • Vehicles over 15 years old, motorcycles, and some other vehicle types have different inspection requirements — check the HDOT website for your vehicle class.
  • If your registration expires before you renew, you cannot legally drive the vehicle, and driving with expired registration can result in a fine.

Renewing online through the HDOT website

Go to the Hawaii Department of Transportation Motor Vehicle Management System at dmvapp.hawaii.gov. Click "Register/Login" and enter your driver's license number and date of birth. If you do not have an account, you will create one with an email address and password.

Once logged in, select your vehicle from the list and click "Renew Registration." The system will show your current registration details and the renewal fee. Hawaii charges a base registration fee that varies by vehicle weight and type — for most passenger cars, this ranges from about $40 to $80, but you can see your exact amount on the screen before you pay. You may also owe a safety inspection fee if your vehicle has not passed inspection within the past year.

Enter your payment information (credit card, debit card, or ACH bank transfer) and submit. You will receive a confirmation email when ready. The state will mail your new registration documents within 7 to 10 business days. You can drive legally during this waiting period as long as you carry your confirmation email or print it out.

Renewing by mail

Use the renewal notice the state mailed you, or read the form MV-4 from the HDOT website if you did not receive one. Fill in your vehicle information, current registration number, and mailing address. Include a check or money order for the renewal fee — write your registration number on the back of the check.

Mail the completed form and payment to the address shown on your renewal notice. Different counties have different mailing addresses, so check your notice carefully. Include a copy of your current registration document and proof that your vehicle has passed inspection within the past year (your inspection sticker or a letter from the inspection station).

Mail renewal takes about two weeks from the time the state receives your envelope. Do not mail your original registration document — send only a copy. If you are unsure whether your vehicle needs inspection, call your county motor vehicle office before mailing; some vehicle types are exempt, and sending an incomplete process will delay your renewal.

Renewing in person at a county office

Bring your current registration document, a valid photo ID, and proof of insurance to your county motor vehicle office. Hawaii has offices in Honolulu (Oahu), Hilo and Kona (Hawaii Island), Kahului (Maui), and Lihue (Kauai). You can find the exact address and hours on the HDOT website.

If your vehicle has not passed inspection within the past year, you will need to bring the vehicle itself so it can be inspected on site. The inspection checks that your lights, brakes, windshield, and emissions system meet state standards. If your vehicle passes, the office will process your renewal when ready and issue new registration documents before you leave. If it fails, you will need to fix the problem and return for a re-inspection.

In-person renewal is the only method that guarantees you walk out with your new registration the same day. There is no appointment system — offices operate on a first-come, first-served basis. Wait times vary by location and time of day; calling ahead to ask about current wait times can help you plan.

Understanding inspection requirements and exemptions

Most vehicles registered in Hawaii must pass a safety and emissions inspection every year. The inspection sticker goes on your windshield and is valid for one year from the date of inspection. If your sticker is current, you do not need to be re-inspected when you renew your registration — you just need to show proof that you passed.

Some vehicles are exempt from inspection. Vehicles that are 15 years old or older (model year 2009 or earlier for 2024 renewals) do not require emissions testing, though they still need a safety inspection. Motorcycles, mopeds, and trailers have different inspection rules. Vehicles registered as antique or classic may also have different requirements. Check the HDOT website or call your county office to confirm your vehicle's inspection status before you renew.

If your inspection has expired or you have never had one, you will need to visit an inspection station before you can complete your renewal. Inspection stations are private businesses licensed by the state, and you can find a list on the HDOT website. An inspection typically costs $20 to $30 and takes about 15 minutes.

What happens if your registration expires

If December 31 passes and you have not renewed, your registration is expired and you cannot legally drive the vehicle on public roads. Driving with an expired registration can result in a fine of $100 or more, and a police officer can pull you over for this violation alone.

If your registration expired, you can still renew using any of the three methods above. There is no penalty for renewing late, but you must renew before you drive. If you are renewing online or by mail, you can do so when ready. If you are renewing in person and your vehicle needs inspection, you will need to pass inspection first.

Frequently Asked Questions

Can I renew my registration if my vehicle inspection has expired?

No. You must pass a current safety and emissions inspection before the state will process your renewal. Visit an inspection station first, then renew online, by mail, or in person. The only exception is vehicles 15 years old or older, which do not need emissions testing but still need a safety inspection.

What if I move to a different county in Hawaii?

You do not need to re-register your vehicle when you move within Hawaii. Your registration remains valid until December 31. When you renew, update your address on the renewal form or online, and your new registration documents will be mailed to your new address.

Do I need to bring my vehicle to renew online or by mail?

No. Online and mail renewal do not require you to bring your vehicle. You only need to bring your vehicle if you are renewing in person and your inspection has expired, because the county office will inspect it on site.

How much does registration renewal cost?

The base fee for a passenger car ranges from about $40 to $80 depending on vehicle weight and type. You may also owe an inspection fee if your vehicle needs to be inspected. The exact amount for your vehicle will appear on the online renewal screen or on your renewal notice before you pay.

Can I renew my registration before the renewal notice arrives?

Yes. You can renew up to 90 days before your registration expires (before October 3 for a December 31 expiration). Renew online using your driver's license number and date of birth, or call your county motor vehicle office to request a renewal form by mail.