To fill out Hawaii state tax form G-45, each filer must determine the correct classification for his business and enter the gross income and subtract applicable deductions in the appropriate section of the form (Part I, Part II, or Part III). This gives the taxable income that is then used to calculate any taxes due, penalties or refunds. As of 2015, only island-of-Oahu filers must complete Part IV, notes the Hawaii Department of Taxation.
Those wishing to do business in Hawaii must first obtain a state tax ID number, which is entered at the top of the Hawaii General Excise/Use Tax Return, form G-45, states the Hawaii Department of Taxation. However, an exception may be granted for those needing to file for a one-time event. For ongoing business activity, the required frequency of filing depends on the amount of GET due each year.
As of 2015, filers paying $2,000 or less in GET must file semi-annually says the Hawaii Department of Taxation. Those paying $2,001 to $4,000 GET per year must file quarterly, and those paying more than $4,000 GET per year must file every month. The form is due by the 20th day of the month following the close of the filing period. For example, for the July-to-September quarter, the due date is October 20. Form G-49, Annual Return and Reconciliation, must also be filed. Form G-49 is due by January 20 for the period January 1 to December 31 of the preceding year.
Hand-writable and form-fillable PDF versions of both forms are available at tax.hawaii.gov. Select Forms and Publications, then Hawaii Tax Forms by Category, and then General Excise and Use Tax, according to the Hawaii Department of Taxation website. Detailed instructions, along with business application and other forms can also be found in this section.