Important
To effectively communicate with tax offices on your behalf, you must grant us Third Party Administrator access and/or Power of Attorney. Each tax office has its own authorization process, and may require different actions for you to take.
Required: Power of Attorney (POA) for the Arizona Department of Economic Security
- Download the Arizona DES POA found at the bottom of this page
- Complete all fields regarding your business information
- Owner/operator will need to sign at the bottom of the form
- Provide OnPay with the completed form
Download the POA form:
Third-Party Access (TPA) for the Arizona Department of Revenue
Once you have updated your AZ Payroll Settings in your OnPay account with your AZ withholding ID, submit a request asking us to submit an access request for your AZ Taxes online account. Once we have initiated the request, we will follow up with you to approve our access to your AZ Tax account.
Power of Attorney (POA) for the Arizona Department of Revenue
- Download the Arizona DOR POA found at the bottom of this page
- Complete all fields regarding your business information
- Owner/operator will need to sign at the bottom of the form
- Provide OnPay with the completed form
Download the POA form:
Providing account information & completed forms
Submit a request and attach completed forms
To provide the information detailed in this article, click Submit a request, and log in using your OnPay credentials. The "Submit a request" form is the most secure way to transmit your company information and documents to us.
Note: You will need your OnPay login credentials.
You can also submit a request anytime you need help
Requests can also be submitted by clicking the link at the bottom of any help article, or by starting a chat when logged into OnPay. Submitting a support request is the fastest and most secure way to get help with tax matters, technical advice, or any other support you may need from OnPay.
Trouble logging in?
Your password can be reset by clicking Forgot Password.
If you have Multi-Factor Authentication enabled for your account, but you don't have access to your authenticator, or are otherwise unable to access your account, call us at (877) 328-6505, between 9AM-8PM EST, Monday through Friday, for help.
As a reminder, never share your login credentials or MFA code with anyone. OnPay will never ask you for this information.