Illinois

ST-556-X Amended Sales Tax Transaction Return
Amended Sales Tax Transaction ReturnAmended vehicle or watercraft sales tax returnCorrected Illinois sales tax transaction returnIllinois amended title transfer tax formST-556-X amended return
Schedule REG-1-O Owner and Officer Information
Business Owner and Officer Information FormOwner and Officer Information ScheduleOwner/Officer Details FormOwners and Officers Information SheetSchedule REG-1-O - Owner and Officer Information
EG-13-I Financial and Other Information Statement for Individuals
Financial and Other Information Statement for IndividualsIllinois Department of Revenue individual financial disclosure formIndividual Financial and Other Information StatementIndividual Financial Information StatementPersonal Financial Statement for Illinois Department of Revenue
RUT-49 Vehicle Transaction Affidavit
affidavit for a vehicle transactionIllinois Vehicle Transaction AffidavitRUT-49 affidavitVehicle Transaction Affidavitvehicle transfer affidavit
RPU-6 Assistance Charges Return for Electricity Distributors
Assistance Charges Return for Electricity Distributorselectricity distributor assistance charge tax returnelectricity distributor assistance charges filing formIllinois electricity distributor assistance charge returnRPU-6 Electricity Distributor Assistance Charges Return
2025 Form IL-1040 – Individual Income Tax Return
Illinois Form IL-1040 Income Tax ReturnIllinois Individual Income Tax Return (Form IL-1040)Illinois Personal Income Tax ReturnIllinois State Income Tax Return FormIllinois State Tax Return Form