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Hawaii Employer Tax Information

To sign up for Square’s online payroll services in Hawaii, you must be registered with the Hawaii Department of Taxation and the Hawaii Department of Labor and Industrial Relations so we can pay and file your state taxes.

Agency Required Tax Information Format
Hawaii Department of Taxation Hawaii Withholding Account Number WH-000-000-0000-00 (WH + 12 digits)
Hawaii Department of Labor and Industrial Relations Hawaii UI Account Number 0000000000 (10 digits)
Hawaii Contribution Rate X.X%
Hawaii Employment and Training Assessment Rate X.X%

Hawaii Tax Account Numbers

Hawaii Withholding Account Number

  • If you are a new business, register online as a new business through the Hawaii Department of Taxation.
  • If you already have a Hawaii Withholding Account Number, you can look this up online or on any previous correspondence from the Hawaii Department of Taxation. If you’re unsure, contact the agency at 808-587-4242.

Hawaii Unemployment Insurance Account Number

  • If you are a new business, register online to retrieve your UI Account Number.
  • If you already have a Hawaii UI Account Number, you can look this up online or on previous Rate Notices received from the agency.
  • If you’re unsure, contact the Hawaii Department of Labor and Industrial Relations at 808-586-8982 or by visiting labor.hawaii.gov.

Hawaii Contribution Rate

  • Most new employers are assigned a Contribution Rate of 2.4%. You can find this on the Contribution Rate Notice mailed by the Hawaii Department of Labor and Industrial Relations.
  • If you are unsure, contact the agency 808-586-8982 or visit https://labor.hawaii.gov.

Hawaii Employment and Training Assessment Rate

  • Most new employers are assigned a Hawaii Employment and Training Assessment Rate of 0.01%. You can find this on the Contribution Rate Notice mailed by the Hawaii Department of Labor and Industrial Relations.
  • If you are unsure, contact the agency 808-586-8982 or visit https://labor.hawaii.gov.

Authorizing Square Payroll as your Unemployment Insurance (UI) Service Company

In order to file and pay your Hawaii unemployment insurance taxes, Square Payroll needs to be authorized as your service company.

Please look out for an authorization request from Square Payroll and then follow the instructions below:

  1. Log in to your HI UI Tax Account and go to the User Management page.
  2. Next to Square Payroll, click Approve and the button will turn to Edit.
  3. Click Edit and under the Rights section, click Select All.
  4. Click Save User. Square will now be approved as your Service Company.

Please note that you will need to grant us each of the rights in order for the authorization to be complete.

Hawaii Payroll Tax Details

Square Payroll processes the following per the frequency below to the listed state agencies:

Agency Filing Frequency
Hawaii Department of Taxation Withholding Tax Payment After Every Pay Run
Withholding Tax Filing (HW-14) Quarterly
Annual Withholding Tax Filing (HW-3) Annually
Wage and Tax Statement (W-2) Annually
Department of Labor and Industrial Relations, Unemployment Division Unemployment Insurance Tax Payment Quarterly
Quarterly Wage, Contribution and Employment and Training Assessment Report (UC-B6) Quarterly
Department of the Attorney General Child Support Enforcement Agency New Hire Report As Needed
Learn more about: Payroll

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