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Income Tax Calendar

Individual

  • Apr, 2010

  • 4/15/2010: IR-21 or IR-22 Forms due for Declaration of Estimated Tax (1st quarter)

  • 4/15/2010: IR-22 and IR-25 Forms due for calendar year taxpayers

  • Jul, 2010

  • 7/31/2010: IR-18 Form due for Declaration of Estimated Tax (2nd Quarter)

  • Oct, 2010

  • 10/31/2010: IR-18 Form due for Declaration of Estimated Tax (3rd Quarter)
    Due dates falling on weekends or holidays are due on the next business day.

  • Nov, 2010

  • 11/30/2010: Individuals on Approved Extensions Due

Business

  • Mar, 2010

  • 3/31/2010: Fiscal 05 Approved Extension Due

  • Apr, 2010

  • 4/15/2010: BR-21 Forms due for Declaration of Estimated Tax (1st quarter)

  • 4/15/2010: BR-25 Forms due for calendar year taxpayers

  • 4/30/2010: Fiscal 06 Approved Extensions Due

  • May, 2010

  • 5/15/2010: Fiscal 01 Returns Due
    Due dates falling on weekends or holidays are due on the next business day.

  • 5/31/2010: Fiscal 07 Approved Extensions Due
    Due dates falling on weekends or holidays are due on the next business day.

  • Jun, 2010

  • 6/15/2010: Fiscal 02 Returns Due

  • 6/15/2010: BR-18 Form due for Declaration of Estimated Tax (2nd Quarter)

  • 6/30/2010: Fiscal 08 Approved Extensions Due

  • Jul, 2010

  • 7/15/2010: Fiscal 03 Returns Due

  • 7/31/2010: Fiscal 09 Approved Extensions Due

  • Aug, 2010

  • 8/15/2010: Fiscal 04 Returns Due

  • 8/31/2010: Fiscal 10 Approved Extensions Due

  • Sep, 2010

  • 9/15/2010: Fiscal 05 Returns Due

  • 9/15/2010: BR-18 Form due for Declaration of Estimated Tax (3rd Quarter)

  • 9/30/2010: Fiscal 11 Approved Extensions Due

  • Oct, 2010

  • 10/15/2010: Fiscal 06 Returns Due

  • 10/31/2010: Calendar Year Businesses on Approved Extensions Due
    Due Dates Falling on weekends or holidays are due on the next business day.

  • Nov, 2010

  • 11/15/2010: Fiscal 07 Returns Due

  • 11/30/2010: Fiscal 01 Approved Extension Due

  • Dec, 2010

  • 12/15/2010: Fiscal 08 Returns Due

  • 12/15/2010: BR-18 Form due for Declaration of Estimated Tax (4th Quarter)

  • 12/31/2010: Fiscal 02 Approved Extensions Due

  • Jan, 2011

  • 1/15/2011: Fiscal 09 Returns Due
    Due dates falling on weekends or holidays are due on the next business day.

  • 1/31/2011: Fiscal 03 Approved Extension Due

Employers

  • Mar, 2010

  • 3/22/2010: IT-15 Form due for semi-monthly withholding

  • Apr, 2010

  • 4/7/2010: IT-15 Form due for semi-monthly withholding

  • 4/22/2010: IT-15 Form due for semi-monthly withholding

  • 4/30/2010: IT-15 Form due for monthly withholding

  • 4/30/2010: IT-11 Form due for Quarterly withholding (1st quarter)

  • May, 2010

  • 5/7/2010: IT-15 Form due for semi-monthly withholding

  • 5/15/2010: IT-15 Form due for monthly withholding
    Due dates falling on weekends or holidays are due on the next business day.

  • 5/21/2010: IT-15 Form due for semi-monthly withholding

  • Jun, 2010

  • 6/7/2010: IT-15 Form due for semi-monthly withholding

  • 6/15/2010: IT-15 Form due for monthly withholding

  • 6/22/2010: IT-15 Form due for semi-monthly withholding

  • Jul, 2010

  • 7/7/2010: IT-15 Form due for semi-monthly withholding

  • 7/22/2010: IT-15 Form due for semi-monthly withholding

  • 7/31/2010: IT-11 Form due for Quarterly withholding (2nd quarter)

  • 7/31/2010: IT-15 Form due for monthly withholding

  • Aug, 2010

  • 8/6/2010: IT-15 Form due for semi-monthly withholding

  • 8/15/2010: IT-15 Form due for monthly withholding
    Due dates falling on weekends or holidays are due on the next business day.

  • 8/20/2010: IT-15 Form due for semi-monthly withholding

  • Sep, 2010

  • 9/7/2010: IT-15 Form due for semi-monthly withholding

  • 9/15/2010: IT-15 Form due for monthly withholding

  • 9/22/2010: IT-15 Form due for semi-monthly withholding

  • Oct, 2010

  • 10/7/2010: IT-15 Form due for semi-monthly withholding

  • 10/22/2010: IT-15 Form due for semi-monthly withholding

  • 10/31/2010: IT-15 Form due for monthly withholding

  • 10/31/2010: IT-11 Form due for Quarterly withholding (3rd quarter)
    Due dates falling on weekends or holidays are due on the next business day.

  • Nov, 2010

  • 11/5/2010: IT-15 Form due for semi-monthly withholding

  • 11/15/2010: IT-15 Form due for monthly withholding

  • 11/22/2010: IT-15 Form due for semi-monthly withholding

  • Dec, 2010

  • 12/7/2010: IT-15 Form due for semi-monthly withholding

  • 12/15/2010: IT-15 Form due for monthly withholding

  • 12/22/2010: IT-15 Form due for semi-monthly withholding

  • Jan, 2011

  • 1/7/2011: IT-15 Form due for semi-monthly withholding

  • 1/15/2011: IT-15 Form due for monthly withholding
    Due dates falling on weekends or holidays are due on the next business day.

  • 1/24/2011: IT-15 Form due for semi-monthly withholding

  • 1/31/2011: IT-11 Form due for Quarterly withholding (4th quarter)

Observed Holidays

  • May, 2010

  • 5/31/2010: City Observed Holiday - Office Closed

  • Jul, 2010

  • 7/5/2010: City Observed Holiday - Office Closed

  • Sep, 2010

  • 9/6/2010: City Observed Holiday - Office Closed

  • Oct, 2010

  • 10/11/2010: City Observed Holiday - Office Closed

  • Nov, 2010

  • 11/25/2010: City Observed Holiday - Office Closed

  • Dec, 2010

  • 12/24/2010: City Observed Holiday - Office Closed

  • Jan, 2011

  • 1/3/2011: City Observed Holiday - Office Closed

  • 1/17/2011: City Observed Holiday - Office Closed