How do I register for Arizona payroll taxes?

Registering for Arizona Payroll Tax Account Numbers

Arizona requires employers to register with the Department of Revenue and Department of Economic Security. You can register for both online.

Department of Revenue Employer Identification Number

• Register online
• Formats: (9999999 9, 99999999@, 99 999999 @, 99-9999999, 99-999999@, 99-999999 @)
• To find an existing account number, call: (602) 255-3381 (in Phoenix) or (800) 352-4090

Department of Economic Security Account Number

• Register online
• Format: 8 digits (99999999 or 9999999-9)
• To find an existing account number, call: (602) 771-6602

Arizona Payroll Taxes

Payroll Tax Rates

The Department of Economic Security will assign your unemployment insurance tax rate. New employers generally have an initial rate of 2.0%.

Payroll Tax Deposit Schedules

All unemployment taxes are deposited quarterly.

The Department of Revenue will assign your withholding deposit schedule based on your total withholding liability for the preceding four quarters. If your average liability is:

• less than $200, you'll likely deposit annually
• greater than $200 but less than or equal to $1,500, you’ll deposit quarterly
• greater than $1,500, you’ll deposit your state withholding based on your Federal withholding deposit schedule