File a Business Tax Return

File Using MyTax Illinois

MyTax Illinois is a centralized location on our website where taxpayers may register a new business or electronically file tax returns, make payments, and manage their tax accounts.

• File & Pay Use Tax (ST-44) - Should only be used by businesses that are not required to register for sales and use taxes. A taxpayer registered to file Form ST-1 should report any use tax liability on that form rather than Form ST-44.
• File Most Business Tax Forms Using MyTax Illinois

Bulk/Other Filing Methods

Business Income Tax

• Automated/Bulk Filing - (Modernized e-File (MeF) - File and pay - Enrollment required)
• Third Party Tax-Prep Software for Business Income Tax
• File on Paper

Excise/Misc. Taxes

• Automated/Bulk Filing - (Direct file - Enrollment required)
• Third Party Tax-Prep Software for Cigarette, Liquor, Telecom. & Tobacco
• File on Paper

Motor Fuel/IFTA

• IDR-277 - Use Tax Single Trip Permits - (File & Pay)

Sales & Use Taxes

• Automated/Bulk Filing - (ST-1 and ST-2 - File and pay - Enrollment required)
• Third Party Tax-Prep Software for Sales and Use Tax - (ST-1 and ST-2)
• Electronic Registration and Title Program for Motor Vehicles (i.e., cars, motorcycles, ATVs, Trailers, Watercraft, Aircraft, and Mobile Homes) – Forms ST-556 and ST-556-LSE, RUT-25 and RUT-25-LSE, and RUT-50)
• File on Paper

Withholding/Payroll

• Electronic W-2 and 1099 Transmittal Program
  
• Automated/Bulk Filing - (FSET - File and pay - Enrollment required)
• UI-3/40 (MyTax Illinois) - (Illinois Department of Employment Security) Report and pay unemployment insurance tax through your MyTax Illinois account
• Third Party Tax-Prep Software for Withholding
• File on Paper