Tax-Rates.org provides free access to printable PDF versions of the most popular Illinois tax forms. Be sure to verify that the form you are downloading is for the correct year. Keep in mind that some states will not update their tax forms for 2016 until January 2017.
If the form you are looking for is not listed here, you will be able to find it on the Illinois 's tax forms page (see the citations at the bottom of this page).
11/-0001Schedule NR - Nonresident Income Tax Form
If you are a part-time resident of nonresident of Illinois but have income earned in Illinois, you must complete a Schedule NR in addition to an Illinois IL-1040 tax return.
11/-0001Schedule I-CR - Illinois Credits
If you qualify for certain tax credits that are not listed on your other tax forms, you need to file schedule CR to claim those credits.
11/-0001Form IL-1040-ES - Estimated Income Tax Return
If you owe more then $500 a year in income tax on April 15th (because of self employment or other income without tax withholding) you must file a quarterly income tax payment using the worksheet and payment voucher included in Illinois form IL-1040-ES.
11/-0001Form 1040-V - Payment Voucher
Submit a completed payment voucher with all tax payments to the Illinois Department of Revenue to ensure that your payment is properly credited to your account.