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Business Tax Return and Payment Due Dates
Are you a Mandated Electronic Filer?
To avoid possible penalty and interest charges, beginning on or after January 1, 2012, ACH Debit taxpayers must initiate their transaction no later than midnight on, or before, the actual due date of the tax to be considered timely.
2013 DUE DATES
| For Period Ending: |
EFT Due Date: |
| December 31, 2012 |
Thursday, January 31, 2013 |
| January 31, 2013 |
Thursday, February 28, 2013 |
| February 28, 2013 |
Monday, April 1, 2013 |
| March 31, 2013 |
Tuesday, April 30, 2013 |
| April 30, 2013 |
Friday, May 31, 2013 |
| May 31, 2013 |
Monday, July 1, 2013 |
| June 30, 2013 |
Wednesday, July 31, 2013 |
| July 31, 2013 |
Tuesday, September 3, 2013 |
| August 31, 2013 |
Monday, September 30, 2013 |
| September 30, 2013 |
Thursday, October 31, 2013 |
| October 31, 2013 |
Monday, December 2, 2013 |
| November 30, 2013 |
Tuesday, December 31, 2013 |
| December 31, 2013 |
Friday, January 31, 2014 |
All Other Filers...
When it's time to file, please File Online. The Taxpayer Service Center (TSC) is a free, fast, easy, and secure way to conduct business with DRS.
Connecticut business taxpayers can electronically file and pay most Connecticut business tax returns using the Taxpayer Service Center ( TSC-BUS).
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