2018 Tax Filing Deadlines

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Here are the filing deadlines for 2018. Please, make sure to take note of them.


  • JANUARY 31: W2s AND 1099 MISCS should be filed
  • MARCH 15TH: Partnerships (1065) businesses income tax returns due
  • MARCH 15TH: Corporations & S Corps (1120 and 1120s) income tax returns are due
  • APRIL 17TH: Personal (1040) income tax returns are due. The 15th falls on a Sunday, so the deadline has been extended to the 17th. This also includes Sole Proprietors (Schedule C filers) and rental owners.



If you cannot meet any of the deadlines, make sure to file an extension. These are the extension deadlines:

  • SEPTEMBER 17TH: Partnership (1065) and S Corp (1120s) tax returns are due
  • OCTOBER 15TH: C Corps (1120) and Personal (1040) tax returns are due.


* Note, that if you need to file 1065 or 1120s, for your business, you cannot file your personal (1040) return without them. In other words, you need to file them first, because they eventually flow to your personal return. 


Do not forget to follow Dollars in Line via the social media links below, to stay updated on relevant information, throughout the tax season. Also, make sure to download the free depreciation information tracker on our FREEBIES page.

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About Chizoba Morah 122 Articles
Accountant, bookkeeper, tax planner! I have an MBA and have been involved in Accounting and tax preparation for over 10 years. My clients include individuals, businesses of all forms (including corporations) and sizes small to large).

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