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Illinois Tax Brackets, Rates, Standard Deductions, Forms

You can complete and e-File your Illinois Income Taxes here on eFile.com with your Federal Income Tax Return. Information on how to only file an Illinois Income Return.

Find Illinois state income tax brackets and rates, standard deduction information, and tax forms by tax year. 

Still need to prepare and file an IL return for a previous Tax Year? Find the Illinois tax forms below. You can complete and sign the forms here on eFile.com before you mail them to the Illinois Department of Taxation. For IRS or Federal back taxes, access the tax forms here.

Below find links to other important Illinois income tax return information and other related features (e.g. tax extension, amendment, etc.).

Illinois Income Tax Returns

Illinois Income Taxes
Prepare only an IL State Return without an IRS return. Details
File a 2019 Illinois Tax Amendment
Illinois Income Tax Forms
IRS Tax Brackets, Rates by Tax Year
Calculate and Estimate your IRS Income Tax Brackets and Rates with the eFile RATEucator.

Illinois 2019 Income Bracket, Rate and Estimated Taxes Due

Your Illinois net income is taxed at a 4.95% flat rate. 

Other State Income Tax Brackets: Compare State Tax Brackets, Rates
For your personal Effective IRS Tax Rate use the RATEucator Tool

Illinois Standard Deductions

Illinois does not have a state standard deduction, nor do they use the federal standard deduction amounts

Other Standard Deductions by State: Compare State Standard Deduction Amounts
IRS Standard Deduction: Federal Standard Deductions

2020 Tax Year Illinois Income Tax Forms

Illinois State Tax Forms for Tax Year 2020 (Jan. 1 - Dec. 31, 2020) can be e-Filed along with a IRS Income Tax Return until October 15, 2021. Details on how to only prepare and print an Illinois 2020 Tax Return. The IL 2020 Tax Forms are below.

Form/Schedule
Description
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Form IL-1040
Individual Income Tax Return
Refund Due a Deceased Taxpayer
Schedule ICR
Illinois Credits
Schedule M
Other Additions and Subtractions
Schedule NR
Nonresident & Part-Year Resident Computation
Extension Payment Voucher Form. Complete and submit to the IL Department of Revenue - address is on the form - with your payment.
Cannot be e-Filed. Mail-in only.
Determines your paycheck IL Tax Withholding amount per employer.
Step 1: Complete and submit to your employer(s).
Step 2: Estimate, Calculate your IRS Tax Withholding now.
Not filed with the State. Submit to Employer only.

E-File These 2019 Illinois State Tax Forms

Prepare and efile these state forms for 2019 in conjunction with your federal and state income tax return. As you proceed through the tax interview on efile.com, the application will select the correct state forms for you. You can also select tax forms individually. All these forms will then be e-filed by you to the state tax agency. Instructions on how to only prepare a state income tax return.

Form/Schedule
Description
eFileIT Now*
Individual Income Tax Return
Refund Due a Deceased Taxpayer
Illinois Credits
Other Additions and Subtractions
Nonresident & Part-Year Resident Computation
Extension Payment Voucher Form. Complete and submit to the IL Department of Revenue - address is on the form - with your payment.
Cannot be e-Filed. Mail-in only.
Determines your paycheck IL Tax Withholding amount per employer.
Step 1: Complete and submit to your employer(s).
Step 2: Estimate, Calculate your IRS Tax Withholding now.
Not filed with the State. Submit to Employer only.

2018 Tax Year Illinois Income Tax Forms

Illinois State Income Tax Forms for Tax Year 2018 (Jan. 1 - Dec. 31, 2018) can no longer be prepared and e-filed. Complete the respective Form(s) below, sign, and mail them to the Illinois Department of Revenue.  The IL Tax Forms and Mailing Address are below - click for the IRS Federal Income Tax Forms for Tax Year 2018.

Form/Schedule
Description
Individual Income Tax Return
Refund Due a Deceased Taxpayer
Computation of Penalties for Individuals
Special Depreciation
Gains from Sales of Employer's Securities Received from a Qualified Employee Benefit Plan
Substitute for Unobtainable Form W-2
Income Tax Subtractions & Credits for Individuals
Recapture of Investment Tax Credits
Tax Paid to Other States Credit
Gains from Sales or Exchanges of Property Acquired Before August 1, 1969
Voluntary Charitable Donations
Illinois Credits
Other Additions and Subtractions
Nonresident & Part-Year Resident Computation
Tax Amendment

2017 Tax Year Illinois Tax Forms

Illinois state income tax forms for Tax Year 2017 (Jan. 1 - Dec. 31, 2017)  can no longer be prepared and e-filed. Complete the respective Form(s) below, sign, and mail them to the Illinois Department of Revenue. In addition to filing Illinois Forms you might also have to file the 2017 IRS Tax Return Forms.

Form/Schedule
Description
Individual Income Tax Return
Refund Due a Deceased Taxpayer
Computation of Penalties for Individuals
Special Depreciation
Gains from Sales of Employer's Securities Received from a Qualified Employee Benefit Plan
Substitute for Unobtainable Form W-2
Income Tax Subtractions & Credits for Individuals
Recapture of Investment Tax Credits
Tax Paid to Other States Credit
Gains from Sales or Exchanges of Property Acquired Before August 1, 1969
Voluntary Charitable Donations
Illinois Credits
Other Additions and Subtractions
Nonresident & Part-Year Resident Computation
Specific Accounting Method of Computing Net Income for Individuals
Tax Amendment

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