Illinois Form Il 2210 - Web this form allows you to fi gure penalties you may owe if you did not. What is the purpose of this form? This form allows you to figure penalties you may owe if you did not. Make timely estimated payments, pay the tax you owe. Web the illinois department of revenue (dor) dec.
Web this form allows you to fi gure penalties you may owe if you did not. Web the illinois department of revenue (dor) dec. What is the purpose of this form? This form allows you to figure penalties you may owe if you did not. Make timely estimated payments, pay the tax you owe.