Illinois Income Tax Form IL-1040-ES
|Download Form IL-1040-ES (PDF)||Illinois Estimated Income Tax Return updated 02/2013|
Printable Illinois Income Tax Form IL-1040-ES
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. For more information, see the Illinois Income Tax page.