New Company Registration for Arizona

As soon as you begin business in Arizona, you must register your Employer Identification Number (EIN) with the Arizona Department of Economic Security (DES) and Arizona Department of Revenue (DOR).

Employers who pay a total of $1,500 or more in gross wages in a calendar quarter or reach the 20th week of employing 1 or more individuals for a full or partial day within the same calendar year are required to withhold on unemployment compensation.

Disclaimer: This article is not intended to be tax, legal, financial, or HR advice. Rules and regulations change over time and can vary by location. Consult with a lawyer, accountant, Tax, or HR expert for specific guidance.

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Register for Taxes with Middesk

Homebase has partnered with Middesk to make tax registration easier for you.

• Middesk can register you across all 50 states for withholdings/income tax (SIT) and unemployment insurance (SUI)
• Middesk will continue to support your ongoing compliance by processing and surfacing your state mail for your review
• Middesk offers registrations for select PFMLs and local jurisdictions as well

To get started, sign up here and check out this tutorial.

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State Withholding Income Tax & State Unemployment Tax (UI)

Tax Agency: Arizona Department of Revenue

Register Your EIN on AZTaxes Website

Note: The Arizona Joint Tax Web Application is used to apply for transaction privilege tax, use tax, and Employer Withholding and Unemployment Insurance.

1. Go to the AZTaxes website, here.
2. Click Enroll to File and Pay Online under Businesses.
3. Read the information listed on the User Account Registration Welcome page and click Continue.
4. Complete all required fields annotated with a red asterisk.
5. Read the Terms of Use policy and check the acceptance box.
6. Click Register.
7. You will receive two emails from noreply@azdor.gov.
   1. The first email will contain your username.
   2. The second will provide a temporary password. This password expires after 24 hours.
   3. Note: If you do not find these emails in your inbox, please check your spam folder.  If you cannot locate either or both of these emails, please call the Arizona Department of Revenue toll-free at 800-352- 4090.

Setting Up Your E-Signature PIN

1. Log into AZTaxes using the username and temporary password provided in the email sent from noreply@azdor.gove.
2. After logging in, change your temporary password to a password of your choice.
3. Answer four security questions and Submit.
4. Create a self-selected E-Signature personal identification number (PIN).

Linking Accounts to Your Username

1. Go back to AZTaxes using your username and password.
2. Click on Link Accounts.
3. Complete the required fields, enter your PIN and click Submit.

After Your Register

• Update your Homebase account with your Arizona Employer Identification Number. Your Arizona EIN is required for all Arizona Department of Revenue and Arizona Department of Economic Security interactions to ensure your account is accurate.
• Please call the Arizona Department of Revenue toll-free at 800-352-4090.