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New company registration in Arizona

Arizona Tax Agencies

  • Arizona Department of Revenue (DOR) - income tax withholding
  • Arizona Department of Economic Security (DES) - unemployment tax

Register a new company

  1. Visit the AZ Taxes website
    • Note: It may require you use Internet Explorer or Firefox.
  2. Go to the Businesses section.
  3. Click on Enroll to File and Pay Online
  4. If your business is not licensed or registered, you can apply for a TPT License here .
  5. Go back and link your withholding account number to you AZTaxes account in the "Link Accounts" section. \
    • Detailed instructions from the agency can be found here.

Both tax agencies process your application separately, and each agency will notify you once the processing is complete. For unemployment tax you will be liable once you have paid $1500 wages in a calendar quarter or had one employee for part of a day in 20 different weeks in a calendar year.

The online registration process can take 2-3 weeks online. Please keep this time frame in mind when planning your first Arizona payroll. Alternatively, your request will be processed same-day if you register in person at a local Arizona Department of Revenue office.

Your unemployment tax rate will be sent to you annually and appear on the Determination of Unemployment Tax Rate letter you receive from the DES.

Unemployment Tax Rate: Click here to view state-by-state new employer rates and wage bases. Verify your rate by calling the DES at (602) 771-6602. 

If you have any questions regarding your withholding taxes, you can also call the AZ DOR at (602) 255-3381.

Troubleshoot Department of Revenue authorization issues

Some agencies require special authorization for Gusto to pay or file your taxes.

To ensure successful authorization, please make sure the following information you have entered in your Gusto account matches what is on file with the Arizona Department of Revenue:

  • Official company name/address
  • FEIN - Federal Employment Identification Number

If Gusto is having trouble gaining access to your account, please verify that the above information matches exactly what the agency has on file by giving them a call at (602) 255-3381 or toll-free at (800) 843-7196.

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