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http://tax.illinois.gov/
Revenue, Department of
The 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
https://www.facebook.com/IllinoisDepartmentofRevenue/
https://twitter.com/ILDeptofRevenue
http://tax.illinois.gov/AboutIdor/ContactUs.htm
https://webservices.illinois.gov/iisnewsrss/getfeed.aspx?AgencyID=78

 Services

 

 

https://www2.illinois.gov/services/IDOR/Business Registration-taxes-revenue
Business Registration
Learn more about registration requirements for Illinois businesses.
https://www2.illinois.gov/services/IDOR/business-tax-account
Business Tax Account Summary
View e-Services available for businesses.
https://www2.illinois.gov/services/IDOR/business-tax-registration
Business Tax Registration Online
File your Illinois Business Registration Application online with MyTax Illinois
https://www2.illinois.gov/services/IDOR/verify-registered-business
Verify a Registered Business
Verify an Illinois Business Registration here.
https://www2.illinois.gov/services/IDOR/certificate-resale
Certificate of Resale
Learn more about Certificate of Resale requirements for Illinois businesses.
https://www2.illinois.gov/services/IDOR/il-pin-inquiry
IL-PIN Inquiry
Access your IL-PIN online utlizing MyTax Illinois.
https://www2.illinois.gov/services/IDOR/closing-business
Closing Your Business
Contact IDOR when closing a business to determine tax liabilities.
https://www2.illinois.gov/services/IDOR/motor-fuel-refund
Motor Fuel Refund Inquiry
View additional information on refunds related to Illinois taxes paid on motor fuel used for non-highway purposes.
https://www2.illinois.gov/services/IDOR/disaster-relief
Claiming Disaster Relief
Locate taxpayer information on claiming disaster relief
https://www2.illinois.gov/services/IDOR/file-business-taxes
File Business Taxes
File business tax online with MyTax Illinois.
https://www2.illinois.gov/services/IDOR/copy-tax-return
Obtaining a Copy of a Tax Return
Access information on filing Form IL-4506 to obtain a copy of a state tax return.
https://www2.illinois.gov/services/IDOR/il-1040-address-change
IL-1040 Address Change
Make IL-1040 address changes online with MyTax Illinois.
https://www2.illinois.gov/services/IDOR/business-taxes-pay
Business Taxes Web Pay
Make business tax payments online with MyTax Illinois.
https://www2.illinois.gov/services/IDOR/1099-g-lookup
1099-G Lookup
View your current year 1099-G Certain Government Payments information online with MyTax Illinois.
https://www2.illinois.gov/services/IDOR/individual-income-tax-payment
Individual Income Tax Payment
Check the status of your Illinois Individual Income Tax refund using 'Where’s My Refund?'
https://www2.illinois.gov/services/IDOR/tax-rate-finder
Tax Rate Finder
Utilize the Tax Rate Database for more information on taxes administered by IDOR.
https://www2.illinois.gov/services/IDOR/taxes-festivals
Taxes at Fairs Festivals Flea Markets and Craft Shows
View information on Illinois sales tax requirements for retailers.
https://www2.illinois.gov/services/IDOR/1040-es-payment-inquiry
1040 ES Payment Inquiry
View estimated payment details for your Individual Income Tax Return with MyTax Illinois.
https://www2.illinois.gov/services/IDOR/unemployment-wage-withholding
Unemployment Tax, Wage Reports, & Withholding Filing
File your Employer’s Quarterly Contribution and Wage Report (UI-3/40) online with Illinois Taxnet.
https://www2.illinois.gov/services/IDOR/pay-business-taxes
Register to Pay Business Taxes
Electronically file your original Individual Income Tax Return with MyTax Illinois.
https://www2.illinois.gov/services/IDOR/income-tax-refund-status
Income Tax Refund Status Inquiry
Utilize 'Where's My Refund?' to find out
https://www2.illinois.gov/services/IDOR/estimated-payments
Estimated Payments
View estimated payment details for your Individual Income Tax Return.
https://www2.illinois.gov/services/IDOR/business-tax-registration-verification
Business Tax Registration Verification
Verify an Illinois Business Registration here.
https://www2.illinois.gov/services/IDOR/sales-tax-filing
Sales Tax Web Filing
File sales taxes online utlizing MyTax Illinois.
https://www2.illinois.gov/services/IDOR/taxpayer-answer-center
Taxpayer Answer Center
Find an answer to your tax question by category.
https://www2.illinois.gov/services/IDOR/illinois-income-tax-filing
Illinois Income Tax Filing (IL-1040)
Use MyTax Illinois to electronically file your original Individual Income Tax Return.
https://www2.illinois.gov/services/IDOR/tax-registration-inquiry
Tax Registration Inquiry
Utilize MyTax Illinois for tax registration inquiries.
https://www2.illinois.gov/services/IDOR/2848-power-attorney
IL-2848 Power of Attorney
Access information on IDOR Power of Attorney filing requirements.
https://www2.illinois.gov/services/IDOR/abusive-tax-avoidance
Abusive Tax Avoidance Transactions
View information on efforts to identify participants and material advisors of abusive tax avoidance transactions.
https://www2.illinois.gov/services/IDOR/withholding-household-employees
Unemployment & Withholding Tax for Household Employees
Access information on employer Withholding Income Tax requirements for household employees.
https://www2.illinois.gov/services/IDOR/error-notice
Error Notice & Bill Inquiry
Utilize MyTax Illinois for error notices and bill inquiries.
https://www2.illinois.gov/services/IDOR/withholding-tax-household
Withholding Tax for Household Employees
View additional information and reporting requirements for filing Withholding Income Tax for Household Employees.
https://www2.illinois.gov/services/IDOR/w-2-transmitter
W-2 Transmitter Registration
Employers may electronically register and obtain their user ID (ETIN) and password for transmission of W-2s online.
https://www2.illinois.gov/services/IDOR/withholding-income-tax
Withholding Income Tax Web Filing
File Withholding Income Taxes online with MyTax Illinois.
https://www2.illinois.gov/services/IDOR/withholding-tax-coupon
Withholding Tax Coupon Booklet Requests
Make your IL -501 payment online here.
https://www2.illinois.gov/services/IDOR/excise-tax-filings
Excise Tax Web Filings
https://www2.illinois.gov/services/IDOR/extension-payments
Extension Payments
View information on extension payments for Individual Income Tax (Sole Proprietorships).
https://www2.illinois.gov/services/IDOR/file-income-taxes
File Income Taxes
File income taxes online with MyTax Illinois.