Arizona New Business Registration Guide

Taxes You Must Register For

1. Arizona State Income Withholding Tax

2. Arizona Unemployment Insurance (UI) Tax

Combined Registration for DOR and DES

• Arizona Department of Revenue (DOR)

• Arizona Department of Economic Security (DES)

• State Income Withholding

• Unemployment Insurance (UI)

Who Needs to Register?

• You begin business in Arizona

• You pay $1,500+ in gross wages in any calendar quarter, OR

• You employ one or more individuals for 20+ calendar weeks in a calendar year

Step-by-Step Registration Process

Step 1: Register on AZTaxes Website

• Go to: https://www.aztaxes.gov/Home/Page

• Click “Enroll to File and Pay Online” under the Businesses section

• Read the welcome page and click Continue

• Fill in all required fields (red asterisks)

• Accept the Terms of Use and click Register

1. One with your username

2. One with a temporary password (check spam folder if not visible)

Step 2: Set Up Your E-Signature PIN

• Log into AZTaxes (https://www.aztaxes.gov/Home/Page) using your temporary credentials

• Change your temporary password to a secure, personal password

• Set up four security questions

• Create an E-Signature PIN for future logins

Step 3: Link Your Accounts

• Return to AZTaxes: https://www.aztaxes.gov/Home/Page

• Click Business Account Linking

• Enter the required account info and PIN

• Submit the request

➤ Final Steps

• Update your tax account with your Arizona Employer Identification Number (EIN)

• This EIN is required for all filings with both DOR and DES

• Phone: 1-800-352-4090 (Arizona Department of Revenue)