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
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
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, 20193/13/2019 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
FY 2019-18 - What's New for Illinois Taxeshttps://www2.illinois.gov/rev/research/publications/bulletins/Documents/2019/FY-2019-18.pdfFY 2019-18 - What's New for Illinois Taxes1/24/2019 6:00:00 AM
2019 Illinois Tax Filing Season Begins Monday, January 28https://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=196252019 Illinois Tax Filing Season Begins Monday, January 281/23/2019 6:00:00 AM
2018 Federal Government Shutdownhttps://www2.illinois.gov/rev/research/news/Pages/2018-Federal-Government-Shutdown.aspx2018 Federal Government Shutdown12/24/2018 6:00:00 AM

 Frequent Questions

 

 

Who is an Illinois resident?https://www2.illinois.gov/rev/questionsandanswers/Pages/369.aspxWho is an Illinois resident?
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?
What form must I file if I sell or purchase a business?https://www2.illinois.gov/rev/questionsandanswers/Pages/750.aspxWhat form must I file if I sell or purchase a business?
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?
What are personal property replacement taxes (PPRT)?https://www2.illinois.gov/rev/questionsandanswers/Pages/242.aspxWhat are personal property replacement taxes (PPRT)?
I am an employer. Must I submit my employees' Forms W-2, W-2c, W-2G, and 1099 to IDOR electronically?https://www2.illinois.gov/rev/questionsandanswers/Pages/759.aspxI am an employer. Must I submit my employees' Forms W-2, W-2c, W-2G, and 1099 to IDOR electronically?
What is the difference between an ACH Debit payment and an ACH Credit payment?https://www2.illinois.gov/rev/questionsandanswers/Pages/540.aspxWhat is the difference between an ACH Debit payment and an ACH Credit payment?
What is the Illinois exemption allowance?https://www2.illinois.gov/rev/questionsandanswers/Pages/851.aspxWhat is the Illinois exemption allowance?

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
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 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
CRT-61 - Certificate of Resalehttps://www2.illinois.gov/rev/forms/sales/Documents/sales/crt-61.pdfCRT-61 - Certificate of Resale
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
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 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
2018 IL-1120-ST - Small Business Corporation Replacement Tax Return (includes Schedule B)https://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/business/smallbusiness/il-1120-st.pdf2018 IL-1120-ST - Small Business Corporation Replacement Tax Return (includes Schedule B)

All Tax Forms

 Tax Types

 

 

Sales & Use Taxeshttps://www2.illinois.gov/rev/research/taxinformation/sales/Pages/rot.aspxSales & Use Taxes
Partnershiphttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/partnership.aspxPartnership
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
Subchapter Shttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/subchapters.aspxSubchapter S
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
Fiduciaryhttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/fiduciary.aspxFiduciary
Exempt Organizationshttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/exempt.aspxExempt Organizations

More Tax Types