How Do I Determine If I Am a Resident of Illinois?

You are an Illinois resident if you were domiciled in Illinois for the entire tax year. Your domicile is the place where you reside and the place where you intend to return after temporary absences. Temporary absences may include duty in the U.S. Armed Forces, residence in a foreign country, out-of-state residence as a student, or out-of-state residence during the winter or summer. If you are [...]

How can I check the status of my Illinois state refund?

Where's My Refund?: [...]

How Do I File an Illinois Extension?

Automatic Illinois six-month extension We automatically grant you a six-month extension of time to file your tax return. For calendar year filers, the filing date is automatically extended to October 15. You are not required to file Form IL-505-I to obtain this automatic extension. However, you must pay any tentative tax due by the original due date of your return in order to avoid any [...]

How can I contact the Illinois state department?

The Illinois Department of Revenue (IDOR) provides a variety of services designed to help you solve problems that you may encounter when you complete your tax return, respond to a notice, or determine your account's current status. Website: tax.illinois.gov Phone: 1-800-732-8866 or 1-217-782-3336. Representatives are available Monday through Friday 8am - 5pm. TTD: [...]

How Do I Amend My Illinois State Tax Return?

You should file Form IL-1040-X, Amended Individual Income Tax Return, if you need to change a previously filed Form IL-1040, Individual Income Tax Return, due to a change that affects items used to figure your Illinois net income or credits. Your change can occur from a state change or a federal change, i.e., an amendment of your federal income tax return, an adjustment made by the Internal [...]