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.
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 |