Welcome to the Illinois Department of Revenue

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

Latest News

2018 Cook County Final Multiplier Announced	https://www2.illinois.gov/rev/research/news/Pages/2018-Cook-County-Final-Multiplier-Announced.aspx	2018 Cook County Final Multiplier Announced	6/4/2019 5:00:00 AM
Illinois DOR Launches Online Portal to Better Serve Local Governments	https://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=20165	Illinois DOR Launches Online Portal to Better Serve Local Governments	6/4/2019 5:00:00 AM
FY 2019-22 - Rate Change for Assessment for Illinois Telecommunications Access Corporation Fund	https://www2.illinois.gov/rev/research/publications/bulletins/Documents/2019/FY-2019-22.pdf	FY 2019-22 - Rate Change for Assessment for Illinois Telecommunications Access Corporation Fund	5/23/2019 5:00:00 AM
FY 2019-21 - Sales Tax Rate Change Summary	https://www2.illinois.gov/rev/research/publications/bulletins/Documents/2019/FY-2019-21.pdf	FY 2019-21 - Sales Tax Rate Change Summary	5/17/2019 5:00:00 AM
Governor waives penalties, interest for taxpayers affected by severe weather, flooding	https://www2.illinois.gov/Pages/news-item.aspx?ReleaseID=20037	Governor waives penalties, interest for taxpayers affected by severe weather, flooding	5/13/2019 5:00:00 AM
Information About IL-1040 Property Tax Credit Verification	https://www2.illinois.gov/rev/research/news/Pages/Information-About-IL-1040-Property-Tax-Credit-Verification.aspx	Information About IL-1040 Property Tax Credit Verification	5/9/2019 5:00:00 AM
IDOR Launches Managed Compliance Initiative Program for Use Tax	https://www2.illinois.gov/rev/research/news/Pages/IDOR-Launches-New-Managed-Compliance-Initiative-Program-for-Use-Tax.aspx	IDOR Launches Managed Compliance Initiative Program for Use Tax	4/26/2019 5:00:00 AM
FY 2019-17 - New Online Portal for Local Government Accounts	https://www2.illinois.gov/rev/research/publications/bulletins/Documents/2019/FY-2019-17.pdf	FY 2019-17 - New Online Portal for Local Government Accounts	4/22/2019 5:00:00 AM
Free Income Tax Preparation for Elderly and Low Income Families	https://www2.illinois.gov/rev/research/news/Pages/2019-Free-Income-Tax-Preparation-for-Elderly-and-Low-Income-Families.aspx	Free Income Tax Preparation for Elderly and Low Income Families	4/15/2019 5:00:00 AM

Featured Programs

IDOR's free online account management program. File, pay, register, and more.
This program provides benefits for working people with low to moderate income.
Reporting and Preventing Identity Theft and Additional Information and Resources.
The Invest in Kids Scholarship Tax Credit Program offers a 75 percent income tax credit to contributors.
Search for tax liens filed by the Illinois Department of Revenue.

Individuals

File your IL-1040, make a payment, look up your refund status, and more.

Businesses

Register your business, file a return, make a payment, withholding, and more.

Tax Professionals

Software developers, electronic transmitters, substitute forms developers, and more.

Local Governments

Distributions, data sharing, home-rule taxes, research, statistics, and more.

Frequent Questions

Will I have to install any new software programs on my computer to use MyTax Illinois?	https://www2.illinois.gov/rev/questionsandanswers/Pages/898.aspx	Will I have to install any new software programs on my computer to use MyTax Illinois?
Nothing happens when I try to view letters, print returns, or click the help link. What can I do?	https://www2.illinois.gov/rev/questionsandanswers/Pages/901.aspx	Nothing happens when I try to view letters, print returns, or click the help link. What can I do?
How do I know if I qualify for the Earned Income Tax Credit (EIC)?	https://www2.illinois.gov/rev/questionsandanswers/Pages/47.aspx	How do I know if I qualify for the Earned Income Tax Credit (EIC)?
Am I required to file my IL-941 electronically?	https://www2.illinois.gov/rev/questionsandanswers/Pages/919.aspx	Am I required to file my IL-941 electronically?
What is the motor fuel tax rate in Illinois?	https://www2.illinois.gov/rev/questionsandanswers/Pages/446.aspx	What is the motor fuel tax rate in Illinois?
Does Illinois tax my pension, social security, or retirement income?	https://www2.illinois.gov/rev/questionsandanswers/Pages/99.aspx	Does Illinois tax my pension, social security, or retirement income?
What is the difference between a certificate of registration, resale certificate, and tax-exempt number?	https://www2.illinois.gov/rev/questionsandanswers/Pages/277.aspx	What is the difference between a certificate of registration, resale certificate, and tax-exempt number?
What is a Non-Home Rule municipal Sales Tax?	https://www2.illinois.gov/rev/questionsandanswers/Pages/189.aspx	What is a Non-Home Rule municipal Sales Tax?

Taxpayer Answer Center

Trending Forms

Form IL-W-4 - Employee’s and other Payee’s Illinois Withholding Allowance Certificate and Instructions	https://www2.illinois.gov/rev/forms/withholding/Documents/currentyear/il-w-4.pdf	Form IL-W-4 - Employee’s and other Payee’s Illinois Withholding Allowance Certificate and Instructions
2018 IL-1040-ES - 2018 Estimated Income Tax Payments for Individuals	https://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-ES.pdf	2018 IL-1040-ES - 2018 Estimated Income Tax Payments for Individuals
CRT-61 - Certificate of Resale	https://www2.illinois.gov/rev/forms/sales/Documents/sales/crt-61.pdf	CRT-61 - Certificate of Resale
RUT-5 - RUT-50 Private Party Vehicle Use Tax Chart	https://www2.illinois.gov/rev/forms/sales/Documents/vehicleusetax/RUT-5.pdf	RUT-5 - RUT-50 Private Party Vehicle Use Tax Chart
2018 IL-1040 Instructions	https://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040-Instr.pdf	2018 IL-1040 Instructions
2018 IL-1040 - Individual Income Tax Return	https://www2.illinois.gov/rev/forms/incometax/Documents/currentyear/individual/IL-1040.pdf	2018 IL-1040 - Individual Income Tax Return
Form REG-1 - Illinois Business Registration Application	https://www2.illinois.gov/rev/forms/reg/Documents/REG-1.pdf	Form REG-1 - Illinois Business Registration Application
CPP-1 - Installment Payment Plan Request	https://www2.illinois.gov/rev/forms/misc/Documents/payment/cpp-1.pdf	CPP-1 - Installment Payment Plan Request
ST-1 - Sales and Use Tax and E911 Surcharge Return - For reporting periods January 2019 and after	https://www2.illinois.gov/rev/forms/sales/Documents/sales/ST-1.pdf	ST-1 - Sales and Use Tax and E911 Surcharge Return - For reporting periods January 2019 and after
Booklet IL-700-T - Illinois Withholding Tax Tables Effective January 1, 2019	https://www2.illinois.gov/rev/forms/withholding/Documents/currentyear/il-700-t.pdf	Booklet IL-700-T - Illinois Withholding Tax Tables Effective January 1, 2019

Tax Types

Sales & Use Taxes	https://www2.illinois.gov/rev/research/taxinformation/sales/Pages/rot.aspx	Sales & Use Taxes
Private Party Vehicle Use Tax	https://www2.illinois.gov/rev/research/taxinformation/sales/Pages/vehicle.aspx	Private Party Vehicle Use Tax
Real Estate Transfer Tax – Individuals, Title Companies and Settlement Agencies	https://www2.illinois.gov/rev/research/taxinformation/property/Pages/rett.aspx	Real Estate Transfer Tax – Individuals, Title Companies and Settlement Agencies
Corporate income tax	https://www2.illinois.gov/rev/research/taxinformation/income/Pages/corporate.aspx	Corporate income tax
Charitable Games Tax & License Fees	https://www2.illinois.gov/rev/research/taxinformation/charitygaming/Pages/charitable.aspx	Charitable Games Tax & License Fees
Partnership	https://www2.illinois.gov/rev/research/taxinformation/income/Pages/partnership.aspx	Partnership
Real Estate Transfer Tax Stamp Purchase Forms/Procedures – Counties	https://www2.illinois.gov/rev/research/taxinformation/property/Pages/realestate.aspx	Real Estate Transfer Tax Stamp Purchase Forms/Procedures – Counties
Exempt Organizations	https://www2.illinois.gov/rev/research/taxinformation/income/Pages/exempt.aspx	Exempt Organizations