http://www.revenue.state.il.us/Publications/Bulletins/2015/FY-2015-10.pdf
A SPECIAL NOTE ABOUT THIS TAX SEASON: The Illinois Department of Revenue, the IRS and Revenue Departments around the U.S. are taking additional steps to protect YOU the taxpayer from identity theft and fraud. These additional measures will mean processing time for your return and your refund will be a bit longer. Please be patient with us. We are taking these steps on your behalf to ensure that your refund gets to you and not someone pretending to be you.
All updates for the tax filing season will be posted to our website at tax.illinois.gov. We encourage taxpayers to check back for the most up-to-date information.
Forms, schedules and instructions for the 2014 Illinois Income Tax season are available on our website beginning Tuesday, January 20, 2015.
The Department tentatively will begin accepting returns around the end of January through the modernized e-file system (MeF). This includes returns submitted through tax preparers, individual accountants, and software.
The Department’s FREE filing system will accept Individual and Withholding Income Tax returns beginning in mid-February, and Business Income Tax returns in mid-April.
You may prepare returns using any number of private vendors, but they may charge a fee to file and are dependent on the availability of the MeF system mentioned above.
Taxpayers can plan and prepare their returns on paper so they will be prepared to file electronically on MyTax Illinois when the system becomes available.
There is NO advantage to sending us a paper return by mail.
Filing electronically is the best option. It helps prevents errors and you will receive your refund faster.