📝 Overview
This guide covers state tax information for employers running payroll in Arizona. Use the sections below to find agency contact information, supported tax filings, and the account details required for tax setup.
⚙️ Arizona Tax Information
Click the arrow to view Withholding information
Click the arrow to view Withholding information
Agency Information
Website: Arizona Department of Revenue
Phone: (602) 255-3381
Supported Tax Filings
Quarterly Withholding Tax Return (A1-QRT)
Withholding Reconciliation Return (A1-R)
Wage and Tax Statement (W-2)
Required for Tax Setup
Nothing is required for withholding setup. Arizona uses your FEIN as the account number, and the deposit frequency for Arizona withholding defaults to the Federal deposit schedule you have selected.
Click the arrow to view Unemployment Insurance information
Click the arrow to view Unemployment Insurance information
Agency Information
Website: Arizona Department of Economic Security
Phone: (602) 771-6602
Supported Tax Filings
Unemployment Tax and Wage Report (UC-018)
Required for Tax Setup
UI Account Number (8 digits, e.g., 12345678)
UI Tax Rate (X.XX%)
❓ Frequently Asked Questions (FAQs)
Find answers to common questions or additional details that may not be covered in the main instructions.
Click the arrow to view frequently asked questions
Click the arrow to view frequently asked questions
Do I need to register separately for Arizona withholding?
Click the arrow to see the answer
Click the arrow to see the answer
No separate registration is required for Arizona withholding. The state uses your Federal Employer Identification Number (FEIN) as the withholding account number, and the deposit frequency automatically defaults to your Federal deposit schedule.
Where do I find my Arizona UI Account Number and tax rate?
Click the arrow to see the answer
Click the arrow to see the answer
Your UI Account Number and tax rate are assigned by the Arizona Department of Economic Security when you register for unemployment insurance. Your rate is included in an annual rate notice from the agency. If you need to look these up, log into your account on the DES portal or contact the agency at (602) 771-6602.
What is my Arizona withholding deposit frequency?
Click the arrow to see the answer
Click the arrow to see the answer
Arizona withholding deposits follow your Federal deposit schedule. If you deposit federal payroll taxes monthly, your Arizona deposits will also be monthly. If you are on a semi-weekly Federal schedule, Arizona follows the same cadence.