File a Return

Business Income Tax
Modernized e-File MeF	Tax-Prep Software
Modernized e-File Program Updates

Sales and Use Tax
ST-1 - Sales and Use Tax and E911 Surcharge Return	ST-1-X - Amended Sales and Use Tax and E911 Surcharge Return
ART-1 - Automobile Renting Occupation and Use Tax Return	ART-1-X - Amended Automobile Renting Occupation and Use Tax Return
CMFT-1 - County Motor Fuel Tax Return	CMFT-1-X - Amended County Motor Fuel Tax Return
PST-1 - Prepaid Sales Tax Return	PST-1-X - Amended Prepaid Sales Tax Return
ST-4 - MPEA Food and Beverage Tax Return	ST-4-X - Amended MPEA Food and Beverage Tax Return
ST-8 - Tire User Fee	ST-8-X - Amended Tire User Fee
ST-14 - Chicago Soft Drink Tax Return	ST-14-X - Amended Chicago Soft Drink Tax Return
ST-44 - Illinois Use Tax Return
ST-556 - Sales Tax Transaction Return (For Vehicles, Watercraft, Aircraft, Trailers, and Mobile Homes)	ST-556-X - Amended Sales Tax Transaction Return
Tax-Prep Software	Credit Activity Statement and Detailed Liability Statement for Form ST-556

Withholding (Note: Effective July 1, 2013, WebFile for withholding taxes will be replaced with MyTax Illinois, IDOR’s new online return filing and account management system)
IL-941 - Withholding	FSET - Withholding
IL-W-2 - Withholding	TaxNet - Withholding

Excise Taxes
RC-1-A - Cigarette Tax Stamps	RL-26-W & RL-26-W-X - Liquor Direct Wine Shipper
RC-36 Schedule M - Cigarette Schedule CM	RPU-6 - Assistance Charges for Electricity
RCOA-1 - Coin-Operated Amusement Device	RPU-13 & RPU-13-X - Electricity Excise Tax
RG-1 & RG-1-X - Gas Tax	RT-2 & RT-2-X - Telecommunications Tax
RG-6 - Assistance Charges for Natural Gas	RT-10 & RT-10-X - Telecommunication Infrastructure
RL-26-L - Liquor Schedule L	TP-1 & TP-1-X - Tobacco Products
RL-26-R - Liquor Schedule R

Motor Fuel
IDR-277 - Use Tax Single Trip Permits