Revenue, Department of



Revenue, Department of, Department ofThe primary responsibility of the Department of Revenue is to serve as the tax collection agency for state government and for local governments. The department regulates the manufacture, distribution, and sale of alcoholic beverages. The department also oversees local property tax assessments, and functions as the funding agent for the Illinois Housing Development Authority. 800-732-8866




Extension Payments PaymentsView information on extension payments for Individual Income Tax (Sole Proprietorships).
IL-1040 Address Change Address ChangeMake IL-1040 address changes online with MyTax Illinois.
IL-PIN Inquiry InquiryAccess your IL-PIN online utlizing MyTax Illinois.
Withholding Tax for Household Employees Tax for Household EmployeesView additional information and reporting requirements for filing Withholding Income Tax for Household Employees.
Claiming Disaster Relief Disaster ReliefLocate taxpayer information on claiming disaster relief
Verify a Registered Business a Registered BusinessVerify an Illinois Business Registration here.
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Closing Your Business Your BusinessContact IDOR when closing a business to determine tax liabilities.
Obtaining a Copy of a Tax Return a Copy of a Tax ReturnAccess information on filing Form IL-4506 to obtain a copy of a state tax return.
1040 ES Payment Inquiry ES Payment InquiryView estimated payment details for your Individual Income Tax Return with MyTax Illinois.
Business Tax Account Summary Tax Account SummaryView e-Services available for businesses.
Withholding Income Tax Web Filing Income Tax Web FilingFile Withholding Income Taxes online with MyTax Illinois.
W-2 Transmitter Registration Transmitter RegistrationEmployers may electronically register and obtain their user ID (ETIN) and password for transmission of W-2s online.
Certificate of Resale of ResaleLearn more about Certificate of Resale requirements for Illinois businesses.
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IL-2848 Power of Attorney Power of AttorneyAccess information on IDOR Power of Attorney filing requirements.
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Tax Rate Finder Rate FinderUtilize the Tax Rate Database for more information on taxes administered by IDOR.
Tax Registration Inquiry Registration InquiryUtilize MyTax Illinois for tax registration inquiries.