TurboTax FAQ
TurboTax FAQ
3693 people found this useful

Tax Year 2017 Calendar: Important Dates and Deadlines

Unless otherwise indicated, all deadlines are at 11:59:59 P.M. (one second before midnight) local time.

Tax Forms Availability – See Related Information below for info on when specific IRS and state tax forms will be available.

November 1, 2017

  • Open enrollment for tax year 2018 begins at the Health Insurance Marketplace.
  • The open enrollment period for tax year 2017 ended on January 31, 2017.

December 15, 2017

January 4, 2018 

  • The Intuit Electronic Filing Center begins accepting and holding ("stockpiling") 2017 tax returns that are final and able to be e-filed.
  • The IRS starts processing stockpiled returns on January 29, 2018. A few returns will be processed up to a week before this date for testing purposes.
    • If your return is among those that the IRS processes early as part of its testing, your tax refund (if any) won't be processed until after January 29.

January 15, 2018

  • Due date for fourth installment of 2017 estimated tax payments.

January 29, 2018

  • The IRS starts processing previously stockpiled returns on a first-in, first-out basis.
  • The IRS will run a small number of stockpiled returns through their systems up to a week before this date for testing purposes.
    • If yours is one of them, please note that your tax refund (if any) will not be processed until after January 29.

March 15, 2018

  • Deadline for filing an S Corporation or Partnership return or extension.

April 18, 2018

  • Deadline for filing a 2017 personal, or calendar year estates/trusts tax returns or extension.
    • The return or extension must be postmarked or transmitted for e-filing by Wednesday, April 18, 2018
      • If you owe taxes: To avoid late payment penalties and interest, any additional taxes you owe must be paid by this date even if you filed an extension.
      • If you’re expecting a refund: If you missed the April 18 filing deadline, you have until April 17, 2021 to file and still receive your refund. After that date, any refund would be forfeited to the Department of the Treasury.
  • Due date for first installment of 2018 estimated tax payments.
  • Deadline for filing a 2017 Corporation return or extension.

April 23, 2018

  • Deadline for resubmitting or paper-filing a rejected federal return that was originally e-filed by the April 18 deadline if you did not file an extension.
    • Note: Although the last day to resubmit a rejected return is October 20, the April 23 deadline applies to taxpayers who owe taxes and want to avoid the late-filing penalty.

June 15, 2018

  • Deadline for filing a 2017 personal return for U.S. citizens or residents living and working abroad, including military duty.
  • Due date for second installment of 2018 estimated tax payments.

September 17, 2018

  • Final deadline to file your 2017 S corporation or partnership tax return if you filed an extension.
  • Due date for third installment of 2018 estimated tax payments.

October 1, 2018

  • Final deadline to file your 2017 calendar-year estate/trust tax return if you filed an extension.

October 15, 2018

  • Final deadline to file your 2017 personal tax return if you filed an extension.

October 20, 2018

  • Final deadline to resubmit a rejected return that was originally e-filed on or before October 15.
    • If you're expecting a refund and miss the October 20 final cutoff date, you have until October 15, 2021 to file a paper return and claim your 2017 refund. After that date, any refund would be forfeited to the Department of the Treasury.

GEN12691