Welcome to the Illinois Department of Revenue

IDOR Offices Closed to the Public
Cancel or Reschedule a 2019 Income Tax Return Electronic Payment
Taxpayer Resources during COVID-19 (Coronavirus) Outbreak

 Latest News

 

 

Rate Changes to Take Effect July 1, 2020https://www2.illinois.gov/rev/research/news/Pages/Rate-Changes-to-Take-Effect-January-1,-2020.aspxRate Changes to Take Effect July 1, 20204/8/2020 5:00:00 AM
Department of Revenue Moves to Assist Distillers Making Hand Sanitizerhttps://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=21368Department of Revenue Moves to Assist Distillers Making Hand Sanitizer4/8/2020 5:00:00 AM
Cancel or Reschedule a 2019 Income Tax Return Electronic Paymenthttps://www2.illinois.gov/rev/research/news/Pages/Directions-to-Cancel-or-Reschedule-2019-Income-Tax-Return-Electronic-Payment.aspxCancel or Reschedule a 2019 Income Tax Return Electronic Payment4/3/2020 5:00:00 AM
FY 2020-26 - Changes to Estimated Payment Requirements due to COVID-19 Virus Outbreakhttps://www2.illinois.gov/rev/research/publications/bulletins/Documents/2020/FY2020-26.pdfFY 2020-26 - Changes to Estimated Payment Requirements due to COVID-19 Virus Outbreak4/2/2020 5:00:00 AM
FY 2020-25 - Extension of the Expiration Date of Certain Illinois Sales Tax Exemption (“E”) Numbers Due to COVID-19 Virus Outbreakhttps://www2.illinois.gov/rev/research/publications/bulletins/Documents/2020/FY2020-25.pdfFY 2020-25 - Extension of the Expiration Date of Certain Illinois Sales Tax Exemption (“E”) Numbers Due to COVID-19 Virus Outbreak3/30/2020 5:00:00 AM
FY 2020-24 - Illinois Income Tax Filing and Payment Extensionhttps://www2.illinois.gov/rev/research/publications/bulletins/Documents/2020/FY2020-24.pdfFY 2020-24 - Illinois Income Tax Filing and Payment Extension3/25/2020 5:00:00 AM
Gov. Pritzker Announces Income Tax Filing Extension, More Than $90 Million in Small Business Aidhttps://www2.illinois.gov/dceo/Media/PressReleases/Pages/PR20200325.aspxGov. Pritzker Announces Income Tax Filing Extension, More Than $90 Million in Small Business Aid3/25/2020 5:00:00 AM
Effective Immediately: IDOR Offices Closed to the Publichttps://www2.illinois.gov/rev/research/news/Pages/Effective-Immediately-IDOR-Offices-Closed-to-the-Public.aspxEffective Immediately: IDOR Offices Closed to the Public3/23/2020 5:00:00 AM
FY 2020-23 - Short-Term Relief from Penalties for Late Sales Tax Payments Due to COVID-19 Virus Outbreakhttps://www2.illinois.gov/rev/research/publications/bulletins/Documents/2020/FY2020-23.pdfFY 2020-23 - Short-Term Relief from Penalties for Late Sales Tax Payments Due to COVID-19 Virus Outbreak3/19/2020 5:00:00 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?
What is the penalty for not making estimated tax payments?https://www2.illinois.gov/rev/questionsandanswers/Pages/49.aspxWhat is the penalty for not making estimated tax payments?
What should I do if I mailed my income tax return and forgot to include the check?https://www2.illinois.gov/rev/questionsandanswers/Pages/61.aspxWhat should I do if I mailed my income tax return and forgot to include the check?
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?
When is my individual income tax return due?https://www2.illinois.gov/rev/questionsandanswers/Pages/4.aspxWhen is my individual income tax return due?
What is a 1099-G?https://www2.illinois.gov/rev/questionsandanswers/Pages/25.aspxWhat is a 1099-G?
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?
Who qualifies for the property tax credit on the individual income tax return?https://www2.illinois.gov/rev/questionsandanswers/Pages/46.aspxWho qualifies for the property tax credit on the individual income tax return?

Taxpayer Answer Center

 Trending Forms

 

 

2019 IL-1040 Instructionshttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Instr.pdf2019 IL-1040 Instructions
2019 IL-1040, Individual Income Tax Returnhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040.pdf2019 IL-1040, Individual Income Tax Return
2020 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.pdf2020 Form IL-W-4, Employee’s and other Payee’s Illinois Withholding Allowance Certificate and Instructions
2020 IL-1040-ES, Estimated Income Tax Payments for Individualshttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-ES.pdf2020 IL-1040-ES, Estimated Income Tax Payments for Individuals
2019 Schedule ICR, Illinois Creditshttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Schedule-ICR.pdf2019 Schedule ICR, Illinois Credits
CRT-61 - Certificate of Resalehttps://www2.illinois.gov/rev/forms/sales/Documents/sales/crt-61.pdfCRT-61 - Certificate of Resale
2019 Schedule IL-WIT, Illinois Income Tax Withheldhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Schedule-IL-WIT.pdf2019 Schedule IL-WIT, Illinois Income Tax Withheld
2019 Form IL-1040 Exemption Allowance Charthttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040_Exemption_Allowance_Chart.pdf2019 Form IL-1040 Exemption Allowance Chart
2019 Schedule NR, Nonresident and Part-Year Resident Computation of Illinois Taxhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/il-1040-schedule-nr.pdf2019 Schedule NR, Nonresident and Part-Year Resident Computation of Illinois Tax
2019 IL-1040-V, Payment Voucher for Individual Income Taxhttps://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-V.pdf2019 IL-1040-V, Payment Voucher for Individual Income 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
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
Real Estate Transfer Tax Stamp Purchase Forms/Procedures – Countieshttps://www2.illinois.gov/rev/research/taxinformation/property/Pages/realestate.aspxReal Estate Transfer Tax Stamp Purchase Forms/Procedures – Counties
Subchapter Shttps://www2.illinois.gov/rev/research/taxinformation/income/Pages/subchapters.aspxSubchapter S
Charitable Games Tax & License Feeshttps://www2.illinois.gov/rev/research/taxinformation/charitygaming/Pages/charitable.aspxCharitable Games Tax & License Fees

More Tax Types