If you are operating a business or practicing a profession as a sole proprietorship in Hawaii, received rental income from property located in Hawaii, or are operating a farm in Hawaii, you must enter your Hawaii Tax Identification Number for this activity.

The Hawaii tax ID is entered on Hawaii Form N-11 is the "General Excise/Use and County Surcharge Tax (GE)" and is in the format of "GE-987-654-3210-01."

Use the Hawaii Tax Online search engine to find the latest Hawaii Tax ID numbers.

To enter the HI tax ID in TaxAct:

1. From within your TaxAct return (Online or Desktop), click State to expand, then click Hawaii (or HI). On smaller devices, click in the upper left-hand corner, then click State.
2. Click Miscellaneous Topics in the Hawaii Quick Q&A Topics menu to expand, then click Federal Schedule C Information, Federal Schedule E Information, or Federal Schedule F Information.

Note that any link in the information above is updated each year automatically and will take you to the most recent version of the document at the time it is accessed.