Corporations

March 15

File a 2015 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 18

Deposit the first installment of estimated income tax for 2016. 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 2016. A worksheet, Form 1120-W, is available to help you estimate your tax for the year.

September 15

File a 2015 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 15.

Deposit the third installment of estimated income tax for 2016. 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 2016. 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.

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Upcoming Tax Dates

July 1 — Occupational excise taxes
File Form 11C to register and pay the annual tax if you are in the business of accepting wagers.

July 4 — Everyone
Federal Holiday (Independence Day) - Details

July 11 — Employees who work for tips
If you received $20 or more in tips during June, report them to your employer - Details

July 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 June.

July 14 — Regular method taxes
Deposit the tax for the last 15 days of June.

July 15 — Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in June.

July 15 — Nonpayroll withholding
If the monthly deposit rule applies, deposit the tax for payments in June.

July 27 — Communications and air transportation taxes under the alternative method
Deposit the tax included in amounts billed or tickets sold during the last 15 days of June.

July 29 — Regular method taxes
Deposit the tax for the first 15 days of July.

View More Tax Dates