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Arizona: How to Manage Your Employer Payroll Tax Accounts

This guide provides essential information on registering, managing, and troubleshooting both State Income Tax (SIT) and State Unemployment Insurance (SUI) accounts in Arizona.

State: Arizona (AZ) 

SIT (State Income Tax): 

  • Filing Frequency: Annual/Quarterly 
  • New Employer Rate: Not Applicable (N/A) 
  • ID # Format: 99-9999999 (FEIN) 
  • Phone #: (602) 235-3381 
  • New Registration Estimated Processing Time: Immediate 
  • Delivery Method: Online 

SUI (State Unemployment Insurance): 

  • Filing Frequency: Quarterly 
  • New Employer Rate: 2.00% 
  • ID # Format: 9999999-9 
  • Phone #: (602) 771-6606 
  • New Registration Estimated Processing Time: 20-30 Business Days 
  • Delivery Method: Mail 

Registration Process 

SIT Registration 

SUI Registration 


Power of Attorney (POA) 

  • SIT POA Required: Yes, form available here
  • SUI POA Required: Yes, form available here

Third-Party Administrator (TPA) 

  • TPA Required for SIT: No 
  • TPA Required for SUI: No 

For more information on setting up GoCo's Embedded Partner Gusto as your Payroll Agent visit 

How to set up GoCo Embedded Payroll as your Agent


Recovery Process 

SIT Recovery 

  • Contact Information: FAQs 

SUI Recovery 


Update Company Information 

SIT Updates 

SUI Updates 

  • Process: Download and complete the Name and Address Change Request form, then fax or mail it to the address provided on the form. Alternatively, call the AZ Unemployment Insurance Call Center and select Option 4. 


State taxes and forms we file 

  • Payment of AZ Income Tax Withholding (A1-WP)* 
  • Quarterly Withholding Tax Return (A1-QRT) 
  • Withholding Reconciliation Return (A1-R) 
  • Wage and Tax Statement (State W2) 
  • AZ Report for New Hire 
  • Unemployment Tax and Wage Report (UC-018) 

 

For any additional questions, please reach out to us at support@goco.io 💚

Disclaimer:

This article is not to be taken as tax, legal, benefits, financial, or HR advice. Since rules and regulations change over time and can vary by location, consult a lawyer or HR expert for specific guidance.

Information updated as of Oct 01, 2024