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Form 4868: Application for Automatic Extension of Time to File

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Not ready by the April deadline? Form 4868 buys you six more months to file — automatically, no explanation required. The one catch: it extends the paperwork, not the payment. Here's how it works.

Form 4868 — Application for Automatic Extension of Time to File

Free · Official IRS PDF · Current IRS revision · Print-ready
↓  Download Form 4868 (PDF) Instructions: irs.gov

What is Form 4868?

Form 4868, Application for Automatic Extension of Time to File U.S. Individual Income Tax Return, gives any individual filer an automatic extension — normally to mid-October — just by filing the form on time. The IRS doesn't ask why, and approval is automatic.

What it does not extend is your time to pay. Tax you owe is still due by the April deadline, and unpaid balances accrue interest plus a late-payment penalty. The form asks you to estimate your total tax liability and pay what you can with the extension — a good-faith estimate keeps penalties minimal.

Who files Form 4868?

  • Anyone who needs more time to file — missing documents, complex investments, a busy season, or life in general. No justification is required.
  • Filers waiting on K-1s from partnerships or S-corps that arrive after the April deadline.
  • Taxpayers abroad — U.S. citizens out of the country get an automatic 2-month extension without filing anything, and Form 4868 stretches it further.

Deadlines

File Form 4868 by the April filing deadline for the tax year. The extension then runs to October 15 (next business day if it falls on a weekend or holiday). Payments for tax owed remain due in April regardless.

How to fill out Form 4868

  1. Estimate your total tax liability

    Use your W-2s, 1099s, and last year's return to make a reasonable estimate of total tax for the year.

  2. Subtract what's already paid in

    Withholding and estimated payments count. The remainder is your estimated balance due.

  3. File the form by the April deadline

    Paper-file the PDF, e-file it, or simply make an extension payment through IRS Direct Pay marked as an extension — the payment itself counts as filing Form 4868.

  4. Pay what you can with it

    Paying at least 90% of your actual liability by April generally avoids the late-payment penalty on the rest.

  5. File the actual return by October

    The extension is for filing Form 1040 — don't let the second deadline slip too.

Form 4868 — frequently asked questions

No — only the time to file. Tax owed is still due by the April deadline. Interest and a late-payment penalty accrue on any unpaid balance, so pay your best estimate with the extension.
Yes. Filing the form (or making an IRS extension payment) on time is all it takes. There's no approval process and no reason required.
The late-filing penalty — the steep one, 5% of unpaid tax per month up to 25% — starts running from the October deadline. File as soon as possible even if you can't pay.
Technically there's no penalty for filing late when the IRS owes you money, but filing the extension is free insurance in case your math is wrong and you actually owe.

Related IRS forms

Form 1040U.S. Individual Income Tax ReturnForm 1040-ESEstimated Tax for IndividualsForm 1040-XAmended U.S. Individual Income Tax Return

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Important: BizDocs is not affiliated with or endorsed by the Internal Revenue Service. The forms offered on this page are official, unmodified IRS documents provided free as a public resource; the IRS publishes them in the public domain at irs.gov. The guides on this page are general information, not tax or legal advice — tax rules change and depend on your situation, so verify details in the official IRS instructions or with a qualified tax professional before filing.