As an individual or business, it is your responsibility to be aware of and to meet your tax filing/reporting deadlines. This calendar summarizes important tax reporting and filing data for individuals, businesses and other taxpayers for the month of September 2014.

September 4
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 27–29.

September 5
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates August 30–September 2.

September 10
Employees who work for tips. Employees who received $20 or more in tips during August must report them to their employer using Form 4070.
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates September 3–5.

September 12
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates September 6–9.

September 15
Individuals. Individuals who do not pay tax through withholding deposit the third installment of estimated tax for 2014.
Corporations. Corporations deposit the third installment of estimated tax for 2014.
Corporations. Corporations and S corporations that obtained 6-month extensions file their 2013 Form 1120 or 1120S and pay tax due.
Partnerships. Partnerships that obtained 5-month extensions file their 2013 Form 1065.

September 17
Employers. Semi-weekly depositors must deposit employment taxes for payroll date September 10–12.

September 19
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates September 13–16.

September 24
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates September 17–19.

September 26
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates September 20–23.

October 1
Employers. Semi-weekly depositors must deposit employment taxes for payroll dates September 24–26.