County Surcharge

The Counties are authorized to adopt a surcharge on the general excise tax and use tax at a rate of no greater than 0.5%. The following counties have adopted the surcharge:

  • City and County of Honolulu: The county surcharge is effective from January 1, 2007 to December 31, 2030 at the rate of 0.5%.
  • County of Kauai: The county surcharge is effective from January 1, 2019 to December 31, 2030 at the rate of 0.5%.
  • County of Hawaii: The county surcharge is effective from January 1, 2019 to December 31, 2020 at the rate of 0.25%.

The county surcharge is only added to activities taxed at the 4.0% rate. The county surcharge does not apply to activities taxed at the 0.5% rate (e.g., wholesaling) or the 0.15% rate (i.e., insurance commissions). The county surcharge is computed and reported on Forms G-45 and G-49. Taxpayers who do business in more than one county must also complete Form G-75 and attach it to Forms G-45 and G-49.

Maximum Pass-On Rates

The maximum pass-on rates, which include the county surcharge if applicable, are as follows:

  • City and County of Honolulu: 4.7120%
  • County of Hawaii: 4.4386%
  • County of Kauai: 4.7120%
  • County of Maui: 4.1666%

Sourcing Rules

Taxpayers are required to allocate their gross proceeds and gross income to the designated taxation districts pursuant to sections 18-237-8.6-01 to 18-237-8.6-10, Hawaii Administrative Rules.

If you have questions about the County Surcharge, you may call our Call Center customer service representatives at 808-587-4242 or toll-free from the neighbor islands and continental U.S. at 1-800-222-3229, Monday thru Friday, 7:45 a.m. to 4:30 p.m. (excluding State holidays).

See also:

  • Tax Announcement 2005-11 Act 247, Session Laws of Hawaii 2005, Relating to County Surcharge on State Tax.
  • Tax Announcement 2006-15 General Excise Tax (GET) and County Surcharge Tax (CST) Visibly Passed on to Customers.
  • Tax Announcement 2006-17 Relating to the Application of the County Surcharge Sourcing Rules to Cash Basis and Accrual Basis Accounting Method Taxpayers.
  • Tax Announcement 2018-14
    Kauai County Surcharge on General Excise Tax and Rate of Tax Visibly Passed on to Customers, Effective January 1, 2019
  • Tax Announcement 2018-15 Hawaii County Surcharge on General Excise Tax and Rate of Tax Visibly Passed on to Customers, Effective January 1, 2019

The Department will be publishing additional guidance on the county surcharge, including a summary of the sourcing rules, shortly.