Welcome to the Illinois Department of Revenue

Important Notice - ​Guidance for remote sellers making sales to Illinois purchasers (Wayfair)

 Latest News

 

 

Free Income Tax Preparation for Elderly and Low Income Familieshttps://www2.illinois.gov/rev/research/news/Pages/2019-Free-Income-Tax-Preparation-for-Elderly-and-Low-Income-Families.aspxFree Income Tax Preparation for Elderly and Low Income Families4/15/2019 5:00:00 AM
Less Than One Week Left to File Taxes for 2019https://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=19908Less Than One Week Left to File Taxes for 20194/11/2019 5:00:00 AM
FY 2019-20 - Simplified Municipal Telecommunications Tax Rate Changes Effective July 1, 2019https://www2.illinois.gov/rev/research/publications/bulletins/Documents/2019/FY-2019-20.pdfFY 2019-20 - Simplified Municipal Telecommunications Tax Rate Changes Effective July 1, 20194/5/2019 5:00:00 AM
Rate Changes to Take Effect July 1, 2019https://www2.illinois.gov/rev/research/news/Pages/Rate-Changes-to-Take-Effect-July-1,-2019.aspxRate Changes to Take Effect July 1, 20194/3/2019 5:00:00 AM
Governor Pritzker Reminds Working Illinoisans to Claim Valuable Tax Benefithttps://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=19860Governor Pritzker Reminds Working Illinoisans to Claim Valuable Tax Benefit3/29/2019 5:00:00 AM
Free Tax Preparation Assistance Available Throughout Illinois https://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=19806Free Tax Preparation Assistance Available Throughout Illinois 3/18/2019 5:00:00 AM
Illinois Gains on Identity Theft and Tax Refund Fraud Prevention, Urges Taxpayer Vigilancehttps://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=19743Illinois Gains on Identity Theft and Tax Refund Fraud Prevention, Urges Taxpayer Vigilance2/27/2019 6:00:00 AM
FY 2019-19 - Nontaxable Sales for Resale of Previously Rented or Leased Vehicleshttps://www2.illinois.gov/rev/research/publications/bulletins/Documents/2019/FY-2019-19.pdfFY 2019-19 - Nontaxable Sales for Resale of Previously Rented or Leased Vehicles2/22/2019 6:00:00 AM
2018 Cook County Tentative Multiplier Announcedhttps://www2.illinois.gov/rev/research/news/Pages/2018-Cook-County-Tentative-Multiplier-Announced.aspx2018 Cook County Tentative Multiplier Announced2/7/2019 6:00:00 AM

 Frequent Questions

 

 

Where do I mail my individual income tax return?https://www2.illinois.gov/rev/questionsandanswers/Pages/5.aspxWhere do I mail my individual income tax return?
How can I obtain my 8-digit IL-PIN to electronically file my Form IL-1040?https://www2.illinois.gov/rev/questionsandanswers/Pages/309.aspxHow can I obtain my 8-digit IL-PIN to electronically file my Form IL-1040?
If I am a grandparent and pay the school expenses, can I take the K-12 education expense credit?https://www2.illinois.gov/rev/questionsandanswers/Pages/34.aspxIf I am a grandparent and pay the school expenses, can I take the K-12 education expense credit?
If my parents claimed me as a dependent on their tax return, can I also claim myself on my return?https://www2.illinois.gov/rev/questionsandanswers/Pages/27.aspxIf my parents claimed me as a dependent on their tax return, can I also claim myself on my return?
How can I obtain a copy of my Illinois Form W-2?https://www2.illinois.gov/rev/questionsandanswers/Pages/51.aspxHow can I obtain a copy of my Illinois Form W-2?
What is the Illinois exemption allowance?https://www2.illinois.gov/rev/questionsandanswers/Pages/851.aspxWhat is the Illinois exemption allowance?
What do I have to do to get an extension for individual income tax?https://www2.illinois.gov/rev/questionsandanswers/Pages/7.aspxWhat do I have to do to get an extension for individual income tax?
May I authorize another person to discuss my IL-1040 with the Department?https://www2.illinois.gov/rev/questionsandanswers/Pages/827.aspxMay I authorize another person to discuss my IL-1040 with the Department?

Taxpayer Answer Center

 Trending Forms

 

 

2018 IL-1040 Instructionshttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Instr.pdf2018 IL-1040 Instructions
2018 IL-1040 - Individual Income Tax Returnhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040.pdf2018 IL-1040 - Individual Income Tax Return
2018 Form IL-1040 Exemption Allowance Charthttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040_Exemption_Allowance_Chart.pdf2018 Form IL-1040 Exemption Allowance Chart
2018 Schedule ICR - Illinois Creditshttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Schedule-ICR.pdf2018 Schedule ICR - Illinois Credits
2018 IL-1040-ES - 2018 Estimated Income Tax Payments for Individualshttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-ES.pdf2018 IL-1040-ES - 2018 Estimated Income Tax Payments for Individuals
2018 Schedule IL-WIT, Illinois Income Tax Withheldhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Schedule-IL-WIT.pdf2018 Schedule IL-WIT, Illinois Income Tax Withheld
Form IL-W-4 - Employee’s and other Payee’s Illinois Withholding Allowance Certificate and Instructionshttps://www2.illinois.gov/rev/forms/withholding/Documents/currentyear/il-w-4.pdfForm IL-W-4 - Employee’s and other Payee’s Illinois Withholding Allowance Certificate and Instructions
2018 IL-505-I - Automatic Extension Payment for Individuals Filing Form IL-1040https://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-505-I.pdf2018 IL-505-I - Automatic Extension Payment for Individuals Filing Form IL-1040
2018 IL-1040-V - Payment Voucher for Individual Income Taxhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-V.pdf2018 IL-1040-V - Payment Voucher for Individual Income Tax
2018 Schedule NR - Nonresident and Part-Year Resident Computation of Illinois Taxhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Schedule-NR.pdf2018 Schedule NR - Nonresident and Part-Year Resident Computation of Illinois Tax

All Tax Forms

 Tax Types

 

 

Sales & Use Taxeshttps://www2.illinois.gov/rev/research/taxinformation/sales/Pages/rot.aspxSales & Use Taxes
Private Party Vehicle Use Taxhttps://www2.illinois.gov/rev/research/taxinformation/sales/Pages/vehicle.aspxPrivate Party Vehicle Use Tax
Corporate income taxhttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/corporate.aspxCorporate income tax
Partnershiphttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/partnership.aspxPartnership
Fiduciaryhttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/fiduciary.aspxFiduciary
Real Estate Transfer Tax – Individuals, Title Companies and Settlement Agencieshttps://www2.illinois.gov/rev/research/taxinformation/property/Pages/rett.aspxReal Estate Transfer Tax – Individuals, Title Companies and Settlement Agencies
Individual Income Tax (Sole Proprietorships)https://www2.illinois.gov/rev/research/taxinformation/income/Pages/individual.aspxIndividual Income Tax (Sole Proprietorships)
Exempt Organizationshttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/exempt.aspxExempt Organizations

More Tax Types