Illinois Income Tax Returns, Forms and Calculators

Prepare and e-File Your Illinois and IRS Tax Return on eFile.com

eFile.com Let's You Complete Your IL and IRS Tax Returns online. Get Your State Refund Faster. Find Many Illinois Tax Forms For You To Complete.

How to File an Illinois Income Tax Return Tax Extension

How and When To Prepare and File an Illinois Tax Extension. Should You File an Illinois Tax Return or Extension. Deadlines.

Illinois Income Tax Payment Options. Online by Check.

How To Pay Illinois Income Taxes Online or via Check. Options to Pay Income Taxes. Mailing Addresses for IL Returns.

Tax Day and Deadlines For Illinois Income Taxes

Illinois State Income Deadlines. The Tax Day Is Almost Always The Same Date as the IRS Deadline. Extension Deadline and Amendment Information.

Your Illinois State Tax Refund Status: See Where Your Money Is

After Your Filed Your Illinois Taxes You Can Check Your Tax Refund Status Here. Idaho Will Post This Once Your Return Gets Accepted.

Illinois Income Tax Forms By Tax Year. e-File Your Taxes.

Income Tax Forms For Illinois. Forms That You Can e-File and Forms you Can Fill Out here on eFile.com. Prepare Now.

Illinois State Tax Brackets, Standard Deductions, Forms.

Illinois State Income Tax Bracket Info by Tax Year. Find IL Standard Deduction Information and Tax Forms.

Complete Form IL-1040x online. Mail in the Tax Amendment Form.

Complete The Illinois State Tax Amendment Form Online Before You Mail It to the State. Detailed Information on Deadlines, Penalties and Back Taxes Forms.

Calculate, Estimate Your Illinois Income Taxes by Tax Year

The Illinois Tax Estimator Will Let You Calculate Your State Taxes For the Tax Year. The Federal or IRS Taxes Are Listed.

Illinois Income Tax Return Instructions for eFile.com - eFileIT

Review Illinois Income Tax Return Instructions and Learn How to Prepare on eFile.com. See How to Access IL Forms on eFile and Edit Them.