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Tax year 2023 calendar: Important federal dates and deadlines

SOLVEDby TurboTax7596Updated January 29, 2024

January 5, 2024

  • The Intuit Electronic Filing Center begins accepting and holding/processing 2023 tax returns that are final and able to be e-filed.

January 16, 2024

  • Due date for fourth installment of 2023 estimated tax payments

January 29, 2024

  • The IRS starts processing returns

March 15, 2024

  • Deadline for filing a calendar-year S corporation or Partnership return or extension

April 15, 2024

  • Deadline for filing a 2023 personal return or extension
  • The return or extension must be postmarked or transmitted for e-filing by April 15, 2024.
    • If you owe: To avoid late payment penalties and interest, any 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 filing deadline, you have three years from the April 15, 2024 due date to file and still receive your refund. After that date, unclaimed 2023 refunds become the property of the Department of the Treasury.
  • Deadline for filing a 2023 calendar-year C corporation or calendar-year estates/trusts tax return or extension
  • Due date for first installment of 2024 estimated tax payments

May 17, 2024

  • Deadline to claim a 2020 tax year refund

June 17, 2024

  • Deadline for filing a 2023 personal return for U.S. citizens or residents living and working abroad, including military duty
  • Due date for second installment of 2024 estimated tax payments

September 16, 2024

  • Final deadline to file your 2023 calendar-year S corporation or partnership tax return if you filed an extension
  • Due date for third installment of 2024 estimated tax payments

October 15, 2024

  • Final deadline to file your 2023 personal tax return if you filed an extension
  • Final deadline to file your 2023 calendar-year estate/trust tax return if you filed an extension
  • Final deadline to file your 2023 calendar-year C corporation tax return if you filed an extension

October 20, 2024

  • Final deadline to resubmit a rejected return that was originally e-filed on or before October 15, 2024
    • If you filed an extension and you're expecting a refund but missed the October 20 final cutoff date, you have until October 15, 2027 to file a paper return and claim your 2023 refund. After that date, any refund would be forfeited to the Department of the Treasury.

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