Hawaii Letter and State Tax ID

The Hawaii State Tax ID:

This is your license or registration number for your General Excise/Use and County Surcharge Tax (GE) account.

  • This ID number should not be associated with other types of tax accounts with the state of Hawaii, such as income tax.

In August 2017, Hawaii's Department of Taxation began a modernization project which also included a change in the format of the Hawaii Tax ID numbers. (You can learn more about this update here on the state's website.)

  • Hawaii Tax ID's that were issued prior to the modernization project begin with the letter "W" and are followed by 10 digits. (Example: W99999999-01.) 
  • Hawaii SalesTax ID's that are issued after the modernization project begin with the letters "GE" and are followed by 12 digits. (Example: GE-999-999-9999-01.)
  • All sales tax related account IDs begin with the letter "GE" to reflect the tax type: General Excise. You should not enroll in AutoFile using a Hawaii Tax ID that begin with abbreviations for other tax types such as CO, FR, GS, PS, RV, TA or WH, etc.
  • Please make sure you remove all dashes when entering your Hawaii Tax ID into the AutoFile enrollment form.
  • If you're not sure of this detail for your account, you can search for it using Hawaii's online tax ID lookup here
  • You can also contact the state directly to ask them to locate this detail for your account. (We list contact details for each state's DOR here.)

What is my Letter ID?

The Hawaii Letter ID:

This is a unique identification credential that Hawaii's Department of Taxation issues to license holders. 

This detail begins with the letter "L" and you can find it listed on any correspondence you receive from Hawaii's DOR. (Some examples of correspondence where you may see this are:

  • Your "Welcome" registration letter
  • An HTML verification letter
  • A letter in the "Alerts" or "Correspondence" section of your Hawaii Tax Online Account
  • The state will not allow the License Letter to be used in place of your Letter ID.
  • If you're not sure of this detail for your account, you can contact the state directly to ask them to locate this detail for your account. Please note that if you call to request this detail, for security purposes, the state will only provide this information to the person who's name is directly connected to the account ownership. (We list contact details for each state's DOR here.)

Hawaii Letter ID