Corporations

March 16

File a 2014 calendar year income tax return (Form 1120) and pay any tax due. If you want an automatic 6-month extension of time to file the return, file Form 7004, Application for Automatic Extension of Time To File Certain Business Income Tax, Information, and Other Returns, and deposit what you estimate you owe.

April 15

Deposit the first installment of estimated income tax for 2015. A worksheet, Form 1120-W, Estimated Tax for Corporations, is available to help you estimate your tax for the year.

June 15

Deposit the second installment of estimated income tax for 2015. A worksheet, Form 1120-W, is available to help you estimate your tax for the year.

September 15

File a 2014 calendar year income tax return (Form 1120) and pay any tax, interest, and penalties due. This due date applies only if you timely requested an automatic 6-month extension. Otherwise, see March 17.

Deposit the third installment of estimated income tax for 2015. A worksheet, Form 1120-W, is available to help you estimate your tax for the year.

December 15

Deposit the fourth installment of estimated income tax for 2015. A worksheet, Form 1120-W, is available to help you estimate your tax for the year.

If you operate on a fiscal year, see tax calendar information for Fiscal-Year Taxpayers.

August 2015
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Upcoming Tax Dates

August 10 Employees who work for tips
If you received $20 or more in tips during July, report them to your employer - Details

August 10 Social security, Medicare, and withheld income tax
File Form 941 for the second quarter of 2015. This due date applies only if you deposited the tax for the quarter timely, properly, and in full.

August 12 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the first 15 days of July.

August 14 Regular method taxes
Deposit the tax for the last 16 days of July.

August 17 Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in July.

August 17 Nonpayroll withholding
If the monthly deposit rule applies, deposit the tax for payments in July.

August 26 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the last 16 days of July.

August 28 Regular method taxes
Deposit the tax for the first 15 days of August.

August 31 Heavy highway vehicle use tax
File Form 2290 and pay the tax for vehicles first used in July.

August 31 Wagering tax
File Form 730 and pay the tax on wagers accepted during July.

View More Tax Dates