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2020 Individual Income Tax Forms

NameDescription 
IL-1040
 InstructionsIndividual Income Tax Return - New - General Instructions for the Unemployment Exclusion - 04/09/2021
IL-1040-X InstructionsAmended Individual Income Tax Return
IL-1040-ES  2021 Estimated Income Tax Payments for Individuals
Use this form for payments that are due on April 15, 2021, June 15, 2021, September 15, 2021, and January 18, 2022.
IL-1040-V Payment Voucher for Individual Income Tax 
IL-1040-X-V Payment Voucher for Amended Individual Income Tax
IL-505-I Automatic Extension Payment for Individuals Filing Form IL-1040
IL-1310 Statement of Person Claiming Refund Due a Deceased Taxpayer
IL-2210 InstructionsComputation of Penalties for Individuals
IL-4562 InstructionsSpecial Depreciation
IL-4644 InstructionsGains from Sales of Employer's Securities Received from a Qualified Employee Benefit Plan
IL-4852 Substitute for Unobtainable Form W-2
Schedule 1299-C InstructionsIncome Tax Subtractions & Credits (for individuals)
​Schedule 1299-I​​Income Tax Credits Information and Worksheets
Schedule 4255 InstructionsRecapture of Investment Tax Credits
Schedule CR InstructionsCredit for Tax Paid to Other States - New - Schedule CR Instructions for Unemployment Exclusion - 04/09/2021
Schedule F InstructionsGains from Sales or Exchanges of Property Acquired Before August 1, 1969
Schedule G InstructionsVoluntary Charitable Donations
Schedule ICR InstructionsIllinois Credits
Schedule IL-E/EIC InstructionsIllinois Exemption and Earned Income Credit
Schedule M InstructionsOther Additions and Subtractions for Individuals
Schedule NR InstructionsNonresident and Part-Year Resident Computation of Illinois Tax - New - Schedule NR Instructions for Unemployment Exclusion - 04/09/2021
Schedule IL-WIT Instructions
Illinois Income Tax Withheld