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Here Are the Hawai‘i Post Offices Where You Can Drop Off Your Taxes Late

27 U.S. Postal Service locations in the Islands will accept returns until midnight


Hawaii taxes

Photo: Thinkstock


Today is the day. Federal taxes are due on April 17. A 5-minute poll in our office showed most of the HONOLULU team already filed. But, if you’re like our editorial director and haven’t sent your forms in yet (she is properly ashamed), here is what you need to know about where to go to make the deadline in Hawai‘i.


And yes, because the IRS was having computer problems, you get an extra day to file without penalty, until the 18th. The IRS says the problems are fixed and everyone should still try to file today.


“This is the busiest tax day of the year, and the IRS apologizes for the inconvenience this system issue caused for taxpayers,” said acting IRS commissioner David Kautter in a statement. “The IRS appreciates everyone’s patience during this period.”


A note for Kaua‘i residents dealing with the aftermath of this weekend’s flooding: Late Tuesday afternoon the State Dept. of Taxation said taxpayers will receive an extension to file. Kaua‘i families may claim casualty loss or deduct losses. Just be sure to mark the top of tax returns with “2018 Kaua‘i Flood Relief.” 


  • If you need to talk to someone, check your postage or just want to hang out with other tax filers who like the live on the edge, the Airport Post Office stays open until 8 p.m. on weekdays. Make a note of that for holiday shipping as well.

  • If you just need to drop off forms, 27 locations across the state will accept papers until midnight. Make sure you have the correct postage and only drop your forms into blue collection boxes or mail slots marked with special bright orange signs saying Tax Mail Drop—Final Pick-Up Midnight. Any mail dropped in the regular collection bins won’t receive the April 17 postmark. Consider yourself warned. Here is the full list:



  • Airport (Main) Post Office

  • Downtown Post Office

  • ‘Ewa Beach Post Office

  • Hawai‘i Kai Post Office

  • Kailua Post Office

  • Kāne‘ohe Post Office

  • Kapālama Post Office

  • Makiki Post Office

  • Mililani Post Office

  • Pearl City Post Office

  • Wai‘alae-Kāhala Post Office

  • Waialua Post Office

  • Wai‘anae Post Office

  • Waikīkī Post Office

  • Waipahu Post Office



  • Kahului Post Office

  • Kīhei Post Office

  • Lahaina (Main) Post Office

  • Makawao Post Office

  • Pukalani Post office

  • Wailuku Post Office



  • Hilo (Airport) Post Office

  • Kailua-Kona Post Office

  • Kamuela Post Office



  • Līhu‘e Main Post Office



  • Kaunakakai Post Office



  • Lāna‘i City Post Office


State taxes are due on Friday, April 20.


The IRS does encourage filing electronically, whether through e-file or IRS Free File, to vastly reduce tax return errors, since the tax software does the calculations, flags common errors and prompts taxpayers for missing information.


Get an Extension

Since it’s getting late, taxpayers also can use Free File to get a filing extension pay all or part of their estimated income tax due, and indicate that the payment is for an extension when using IRS Direct Pay, the Electronic Federal Tax Payment System (EFTPS), or paying by a credit or debit card.


Make a Payment

By selecting “extension” as the reason for the payment, the IRS will also accept the payment as an extension—no need to separately file a Form 4868. Taxpayers will also receive a confirmation number after they submit their payment. When paying with Direct Pay and EFTPS, taxpayers can sign up for email notifications.


And that can help because any payment made with an extension request will reduce or, if the balance is paid in full, eliminate interest and late-payment penalties that apply to payments made after April 17. The interest rate is currently 5 percent per year, compounded daily, and the late-payment penalty is normally 0.5 percent per month.


Get a Refund!

The IRS says the safest and fastest way for taxpayers to get their refund is to have it electronically deposited into their bank or other financial account. Taxpayers can use direct deposit to deposit their refund into one, two or even three accounts. See Form 8888, Allocation of Refund, for details.


Did you know? Even though it wouldn’t be a state for more than 50 years, Hawai‘i became the first to enact a local income tax. In 1901, The New York Times reported Hawai‘i began charging a tax of 2 percent on “all incomes exceeding $1,000 per annum. It is expected that suits will be brought to test the law in the courts.”




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