This is a link to the DisasterAssistance.Gov website.  Applications are due June 14

There is also information about small business disaster loans that are available for anyone who may have been affected. Here is a link to the information available from the Small Business Administration of America: Small Business Disaster Loan Application

HI-2026-01, April 10, 2026

WASHINGTON — The Internal Revenue Service announced today tax relief for individuals and businesses in the State of Hawaii affected by flooding and mudslides due to severe storms that began on March 10, 2026. These taxpayers now have until July 8, 2026, to file various federal individual and business tax returns and make tax payments.

Following the disaster declaration issued by the State of Hawaii, individuals and households that reside or have business in Hawaii, Honolulu, Kauai and Maui counties qualify for tax relief. The declaration permits the IRS to postpone certain tax-filing and tax-payment deadlines for taxpayers who reside or have a business in the disaster area. For instance, for certain deadlines falling on or after March 10, 2026, and on or before July 8, 2026, taxpayers are granted additional time to file.
As a result, affected individuals and businesses will have until July 8, 2026, to file returns and pay any taxes that were originally due during this period. The July 8, 2026, deadline applies to individual income tax returns and payments normally due on or after March 10, 2026. Penalties on payroll and excise tax deposits due on or after March 10, 2026, and before March 25, 2026, will be abated as long as the tax deposits are made by March 25, 2026. The July 8, 2026, deadline also applies to affected quarterly payroll and certain excise tax returns normally due on April 30, 2026.

If an affected taxpayer receives a late filing or late payment penalty notice from the IRS that has an original filing, payment or deposit due date that falls within the postponement period, the taxpayer should call the telephone number on the notice to have the IRS abate the penalty. Under the recently enacted Disaster Related Extension of Deadlines Act (H.R. 1491), the postponement of a federal tax return deadline due to a federally declared disaster is treated as an extension for purposes of calculating the limit on a tax refund. This legislation gives affected taxpayers additional time to claim a refund or credit.The IRS automatically identifies taxpayers located in the covered disaster area and applies filing and payment relief. But affected taxpayers who reside or have a business located outside the covered disaster area should call the IRS Special Services toll-free number at 866-562-5227 to request this tax relief. Tax practitioners in the covered disaster area, who maintain records necessary to meet a filing or payment deadline for taxpayers located outside the disaster area, may contact the IRS Special Services; if the practitioner maintains the necessary records of ten or more clients, please refer to Bulk requests from practitioners for disaster relief for additional guidance.
More information is available on the IRS website.

As a result of the March 2026 Kona Low event which occurred throughout the State between March 10, 2026, and March 23, 2026, Governor Josh Green signed several proclamations, declaring the Kona Low event an emergency or disaster in accordance with section 127A-14, Hawaii Revised Statutes (HRS). With the approaching State income tax deadline of April 20, 2026, the Department of Taxation (the “Department”) recognizes that taxpayers affected by the March 2026 Kona Low event (the “disaster”) may be unable to timely file their State income tax returns and make timely tax payments. 
Accordingly, the Department will consider requests by taxpayers adversely affected by the disaster to waive penalties and interest for failure to timely file returns and failure to timely pay income taxes for the period of April 20, 2026, to July 20, 2026, on a case-by-casebasis. Taxpayers entitled to relief will have until July 20, 2026, to file State income tax returns and make income tax payments without penalties and interest.

More information can be found in this link from the State of Hawaii Department of Taxation website.

HONOLULU — The City and County of Honolulu’s Department of Budget and Fiscal Services is notifying residents whose properties were impacted by the Kona low storm that they may be eligible for a tax break.

A downloadable form is available at the Real Property Assessment Division website. Once completed, residents are asked to mail or hand deliver it to these addresses:

Department of Budget and Fiscal Services’ Honolulu Office: 842 Bethel Street, Basement, Honolulu, HI 96813Department of Budget and Fiscal Services’ Kapolei Office: 1000 Uluʻōhiʻa Street, Room 206, Kapolei, HI 96707

The form is fast and easy to fill out. Residents are asked to include supporting documentation, including photographs, repair estimates, and insurance claims.Real property tax remission means that City and County of Honolulu residents who had their real property damaged or destroyed as a result of a natural disaster could have property tax relief for that tax year. The deadline to file the form is June 30. Anyone with questions can visit one of the offices listed above or contact the Real Property Assessment Division at (808) 768-3799.

For more information, review the Revised Ordinances of Honolulu § 8-4.2