What is the maximum income in Illinois for a w-2 employee can make before its required to report it to IRS?

If any income tax was withheld you may want to file your 1040 Federal income tax return to get a refund of some of the over held federal income taxes if you do not have any federal income tax liability.

If a single taxpayer and NOT a dependent on another individuals income tax return for the year 2009 you could have up to 9350 of gross worldwide income from all sources before you would be required to file a federal 1040 income tax return.