Agencies
Services
Tax Pro Resources
Commonly Used Forms
- IL-2848, Power of Attorney (Submit through MyTax Illinois, effective March 1, 2021)
- IL-8453, Signature Declaration / Electronic Return Originators' (EROs) for Individual Income Tax (2023)
- IL-8453, Signature Declaration / Electronic Return Originators' (EROs) for Individual Income Tax (2022)
- IL-8453, Signature Declaration / Electronic Return Originators' (EROs) for Individual Income Tax (2021)
- IL-8655, Reporting Agent Electronic Services Authorization
- EFT-1, Authorization Agreement for Certain Electronic Payments
- All tax forms