Arizona

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Agency Information

Arizona Department of Revenue – Withholding Tax
Arizona Department of Economic Security – Unemployment tax

Add to existing company setup

Submit a request to your service team to add AZ (withholding) and/or AZSUI (unemployment) to your company setup.  Please include the below with your request:  

  • Withholding – Deposit Frequency and Account number.  If you’re unsure of your deposit frequency or account number, you can call the agency at 602-255-3381.
  • Unemployment – Tax rate and Account number.  This can be found on a Tax Rate Notice or the Quarterly contribution report.  If you’re unsure of your tax rate or account number, you can call the agency at 602-771-6602.
  • Power of Attorney- POA is required, please obtain the prefilled form from your client service representative.

Register a new company

Arizona Department of Revenue and Arizona Department of Economic Security

Visit https://www.aztaxes.gov/Home/Page  and select License a New Business.

Follow the prompts to complete the registration. Both tax agencies process your application separately, and each agency will notify you once the processing is complete, which can take 2-3 weeks.

Third Party Registration and/or Power of Attorney Instructions

Power of Attorney is required, please obtain the prefilled form from your client service representative.