September 2009
9/8/2009
Deadline for employees who work for tips and received $20 or more in tips in August Federal 8th Day of 9th Month following close of tax year
9/15/2009
Last day to file for those on a 6-month extension Federal 15th Day of 9th Month following close of tax year
9/15/2009
Last day to file for corporations that are on a 6-month extension Federal 15th Day of 9th Month following close of tax year
9/15/2009
U S Corporation Estimated Tax 3rd Payment Federal 15th Day of 9th Month following close of tax year
9/15/2009
IL Corporate Estimated Tax 3rd Payment IL 15th Day of 9th Month following close of tax year
9/15/2009
Fiduciary Estimated Tax 3rd Payment Federal 15th Day of 9th Month following close of tax year
9/15/2009
Federal Individual Estimated Tax 3rd Payment Federal 15th Day of 9th Month following close of tax year
9/15/2009
Last day for exempt calendar year farmer co-ops to file return Federal 15th Day of 9th Month following close of tax year
9/15/2009
3rd estimated tax payment due Federal 15th Day of 9th Month following close of tax year
9/15/2009
IL Individual Estimated Tax 3rd Payment IL 15th Day of 9th Month following close of tax year
9/15/2009
Monthly form IL 15th Day of 9th Month following close of tax year
9/21/2009
Monthly Retailer's Occupation Tax IL 20th Day of 9th Month following close of tax year
October 2009
10/2/2009
Heavy vehicle use tax. Federal 2nd Day of 10th Month following close of tax year
10/2/2009
Wagering tax Federal 2nd Day of 10th Month following close of tax year
10/5/2009
Election to be treated as an FSC or Small FSC Federal 4th Day of 10th Month following close of tax year
10/15/2009
Last day to file for a calendar year trust on an additional 3-month extension Federal 15th Day of 10th Month following close of tax year
10/15/2009
Last day to file for a individuals on additional 6-month extension Federal 15th Day of 10th Month following close of tax year
10/15/2009
Last day to file for a Partnership on an additional 3-month extension Federal 15th Day of 10th Month following close of tax year
10/20/2009
Monthly Retailer's Occupation Tax IL 20th Day of 10th Month following close of tax year
November 2009
11/2/2009
Employer's Quarterly Federal Tax Return, 3rd Quarter Federal 31st Day of 10th Month following close of tax year
11/2/2009
Monthly form IL 31st Day of 10th Month following close of tax year
11/2/2009
Quarterly form IL 31st Day of 10th Month following close of tax year
11/2/2009
Unemployment insurance report IL 31st Day of 10th Month following close of tax year
11/2/2009
Heavy vehicle use tax. Federal 31st Day of 10th Month following close of tax year
11/2/2009
Manufacturers, retailers, environmental obligations, fuel, luxury, ship, passengers, and foreign insurers taxes. Federal 31st Day of 10th Month following close of tax year
11/2/2009
Wagering tax Federal 31st Day of 10th Month following close of tax year
11/13/2009
Employer's Quarterly Federal Tax Return, 3rd Qtr., if taxes were deposited in full and on time Federal 13th Day of 11th Month following close of tax year
11/16/2009
Monthly form IL 15th Day of 11th Month following close of tax year
11/20/2009
Monthly Retailer's Occupation Tax IL 20th Day of 11th Month following close of tax year
11/30/2009
Heavy vehicle use tax. Federal 30th Day of 11th Month following close of tax year
11/30/2009
Manufacturers, retailers, environmental obligations, fuel, luxury, ship, passengers, and foreign insurers taxes. Federal 30th Day of 11th Month following close of tax year
11/30/2009
Wagering tax Federal 30th Day of 11th Month following close of tax year
December 2009
12/15/2009
U S Corporation Estimated Tax 4th Payment Federal 15th Day of 12th Month following close of tax year
12/15/2009
IL Corporate Estimated Tax 4th Payment IL 15th Day of 12th Month following close of tax year
12/15/2009
Final estimated tax payment Federal 15th Day of 12th Month following close of tax year
12/15/2009
Monthly form IL 15th Day of 12th Month following close of tax year
12/21/2009
Monthly Retailer's Occupation Tax IL 20th Day of 12th Month following close of tax year


