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Read the chart below to find out when your tax return is due. If the due date falls on a weekend or legal holiday, the due date is extended to the next business day.

Monthly,     Quarterly,     Annual



Monthly due dates

Return Period
Due Date
5% Penalty Begins
15% Penalty Begins
25% Penalty Begins
January 2/25/2010 2/26/2010 4/1/2010 5/1/2010
February 3/25/2010 3/26/2010 5/1/2010 6/2/2010
March 4/25/2010 4/27/2010 6/2/2010 7/1/2010
April 5/25/2010 5/26/2010 7/1/2010 8/3/2010
May 6/25/2010 6/26/2010 8/3/2010 9/1/2010
June 7/25/2010 7/27/2010 9/1/2010 10/1/2010
July 8/25/2010 8/26/2010 10/1/2010 11/2/2010
August 9/25/2010 9/28/2010 11/2/2010 12/1/2010
September 10/25/2010 10/26/2010 12/1/2010 1/4/2011
October 11/25/2010 11/30/2010 1/4/2011 2/1/2011
November 12/25/2010 12/28/2010 2/1/2011 3/1/2011
December 1/25/2011 1/26/2011 3/1/2011 4/1/2011



Quarterly due dates

Return Period
Due Date
5% Penalty Begins
15% Penalty Begins
25% Penalty Begins
Quarter 1 4/30/2010 5/1/2010 6/2/2010 7/1/2010
Quarter 2 7/31/2010 8/3/2010 9/1/2010 10/1/2010
Quarter 3 10/31/2010 11/2/2010 12/1/2010 1/4/2011
Quarter 4 1/31/2011 2/1/2011 3/1/2011 4/1/2011



Annual due dates

  Annual due dates are listed below for the Combined Excise Tax Return, Business & Occupation Activities Return, and Retailing & Other Activities Return.

Note Effective January 1, 2008, the Sales Tax Remittance Return (STR) was discontinued.  If you used this return you may E-file or use the Retailing & Other Activities Return.

Return Period
Due Date
5% Penalty Begins
15% Penalty Begins
25% Penalty Begins
Annual
1/31/2011
2/1/2011
3/1/2011
4/1/2011