Federal Tax Deadlines 2018
Tax Deadlines Occurring in Calendar Year 2018
(for Tax Year 2017 Returns)
Individual tax returns (Forms 1040, 1040NR, 1040A, and 1040EZ)
First deadline is April 17, 2018 (File Form 4868 for extension).
Extended deadline is October 15, 2018.
Partnership returns (Form 1065)
First deadline is March 15, 2018 (File Form 7004 for extension).
Extended deadline is September 15, 2018.
Trust and Estate income tax returns (Form 1041)
First deadline is April 17, 2018.
Extended deadline is October 1, 2018
C-Corporation returns (Form 1120)
First deadline is April 17, 2018 for corporations on a calendar year.
Extended deadline is October 15, 2018 (File Form 7004 for extension).
For corporations on a fiscal year other than a calendar year, the first deadline is the 15th day of the fourth month following the end of the corporation's fiscal year
S- Corporation returns (Form 1120S)
First deadline is March 15, 2018 for corporations on a calendar year.
Extended deadline is September 17, 2018.
Exempt Organizations (Form 990)
First deadline is May 15, 2018.
Extended deadline is November 15, 2018
Foreign Bank Account Reports (FinCen Form 114)
Deadline is April 17, 2018.
Extended deadline is October 15, 2018 (note: this is the first time ever that extensions are available for FBARs).
Please take note that unlike tax returns, FBARs do not have a next-business-day rule if the deadline falls on a Saturday, Sunday, or legal holiday.
