Updated September 7, 2023
What we'll cover
- Illinois Department of Revenue TPA + POA
- Illinois Department of Employment Security TPA + POA
- Download these forms to get started
Why is this important?
OnPay works with government entities on your behalf, reporting new hires to state labor departments, calculating tax rates, paying taxes and insurance contributions, and filing financial reports. To do this effectively, you will need to authorize us to act on your behalf with tax offices for each state where your company has a tax obligation.
For example, if you operate in both Illinois and Indiana, you must complete and return a power of attorney for both states.
Illinois Department of Revenue
Third-Party Access (TPA) for the Illinois Department of Revenue
- Log In to your MyTax Illinois Account. If you do not have an account with MyTax Illinois, you will have to register.
- Select "Manage My Profile"
- Select "More..."
- Select "Manage Third Party Access"
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Set Third Party Access as follows:
- Allowed: Yes
- Default Access: Third Party
- Default Account Access: File & Pay
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Provide us with the answers to security questions: (You may need to contact the department and request this information by calling 800-732-8866 - Please ask for the following information as they have it on file):
- 9-digit Account Zip Code
- Last payment amount
Power of Attorney (POA) for the Illinois Department of Revenue
- Download and print the IL DOR POA found at the bottom of this page
- Complete all fields regarding your business information
- The taxpayer will need to sign at the bottom of the form (notarized)
- Email us the completed Power of Attorney forms to hello@onpay.com.
Illinois Department of Employment Security
Third-Party Access (TPA) for the Illinois Department of Employment Security
- Log In to your MyTax Illinois Account. If you do not have an account with MyTax Illinois, you will have to register.
- Click the 'View all account options' hyperlink under Unemployment Insurance
- Under Power of Attorney (POA) > Click 'Add Agent'
- Select 'Search by agents name' and then type in 'OnPay' next to Enter Agents Name
- Click 'Next'
- Check 'Select'
- Click 'Next'
- Keep 'Full access to view and manage' selected and check the following options:
- UI Employer Contribution Report
- Rate Notice
- Click Next
- Click box next to 'Agree'
- Click Submit
Power of Attorney (POA) for the Illinois Department of Employment Security
- Download the IDES POA found at the bottom of this page
- Complete all fields regarding your business information at the top of the first page
- The taxpayer will need to sign at the bottom of the first page
- Enter your business information at the top of the Unemployment Insurance Special Mailing Form (page 2)
- The taxpayer will need to sign at the bottom of the second page
- Email your completed Power of Attorney forms to hello@onpay.com.