Post offices extend hours for tax filing statewide


Airport Post Office to Remain Open Until 8 p.m.


Honolulu - A total of 27 Post Offices across the state will offer late collection of mail from specially marked collection boxes on Tax Day, Wednesday, Apr. 15, to accommodate last-second filers of federal tax returns.

The 27 Post Offices listed below will have collection boxes and/or lobby drop slots labeled with special bright orange signs indicating Tax Mail Drop - Final Pick-Up Midnight. All mail deposited in those specially designated boxes and slots by midnight will receive Apr. 15 postmarks. Collection boxes and Post Office lobby drops at all other Post Offices will be collected only at their regular posted times on April 15.

All Post Offices will be closing at their regular times. The Airport Post Office in Honolulu will be the last to close-at 8 p.m.--on that night and will be the best bet for last-second customers who need to purchase stamps or special services.

The locations of the 27 Post Offices offering late collections are:


Airport Main Post Office

Downtown Post Office

Ewa Beach Post Office

Haleiwa Post Office

Hawaii Kai Post Office

Kailua Post Office

Kaneohe Post Office

Kapalama Post Office

Laie Post Office

Makiki Post Office

Mililani Post Office

Waialae-Kahala Post Office

Waianae Post Office

Waikiki Post Office

Waipahu Post Office


Kahului Post Office

Kihei 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


Lihue Post Office


Kaunakakai Post Office


Lanai City Post Office

The Postal Service provides the following friendly reminders regarding the mailing of tax returns:

  • Not all boxes will be collected late - If you are mailing your return in a blue collection box or a drop slot at the post office, be sure to check the schedule for the last collection time. Except in specially marked boxes at designated locations (see above list), returns deposited AFTER the last collection time will NOT receive Apr. 15 postmarks.
  • Beat the rush, mail early - Mail your tax returns early in the day. Post Offices typically become very congested in the late afternoon and evening on the tax day deadline.
  • Ensure proper postage - Be sure to check that adequate postage is applied to your tax return. First-Class postage for one ounce is 42 cents. Weigh any return that feels heavier than one ounce. Add 17 cents for each additional ounce up to 13 ounces. Heavier pieces go Priority Mail. Check the Postal Service web site at for a postage rate calculator. Tax agencies do not accept postage due mail; tax returns bearing insufficient postage will be returned-meaning taxpayers may be penalized for filing late tax returns.
  • Proof of mailing/delivery - Mailers who desire proof of mailing and delivery should request "Certified Mail with Return Receipt" when mailing tax returns.
  • Ensure proper addressing - Use pre-addressed labels where possible. Write clearly. Take special care to ensure that handwritten envelopes are legible. Include a return address. Make sure that bulky envelopes are securely sealed.
  • Heavy packages require personal drop off - Mail with postage paid by postage stamps (as opposed to postage meter strips) that weighs more than 16 ounces must be presented in person to a clerk at a Post Office. Returns meeting this description that are deposited in collection boxes will be returned to their senders.
  • Tax forms not available at Post Offices - Most Post Offices do not carry tax forms; only the most basic forms are available in Post Offices that do. Suggestion: Check out the IRS's web site for downloadable forms.