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what is the october tax deadline

For most U.S. taxpayers, the “October tax deadline” refers to October 15 , which is the last day to file your individual federal income tax return if you requested an automatic extension back in April.

Quick Scoop: What the October Deadline Really Is

  • If you filed Form 4868 and got a six‑month extension from the April deadline, your extended Form 1040 is due October 15.
  • This date is about filing paperwork , not about giving you extra time to pay your tax; any tax you owed was still due in April, and interest/penalties can run from then if you underpaid.
  • The October deadline in recent and upcoming years continues to fall on October 15 , unless that day is a weekend or holiday, in which case it may shift to the next business day.

Who the October 15 date affects

  • Individuals who requested a filing extension in April (Form 4868).
  • C‑corporations and some other entities that also operate on an extended calendar can share that October 15 extended filing date.

What still has different October dates

There are other October deadlines that sometimes cause confusion:

  • Employment and excise tax returns like Form 941 and Form 720 often have a late‑October (e.g., Oct. 31) due date for the third quarter, which can shift if that date falls on a weekend.
  • Some specialized forms (like wagering or vehicle tax forms) also key off late‑October dates.

Think of it this way: April is pay‑day for taxes, October is your “final chance to file” if you asked for more time.

Very short checklist

  1. Did you extend your individual return in April?
    • Yes → Your filing deadline is October 15.
  1. Do you owe tax?
    • Anything unpaid since April may already be accruing interest/penalties, even if you file by October.
  1. Self‑employed or small business?
    • You may also have separate quarterly and payroll deadlines in October (often October 31).

Meta description (SEO-style):
Wondering what is the October tax deadline? For most U.S. filers who requested an extension, October 15 is the final date to submit their federal return, with other specialized tax deadlines also hitting in October.

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