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IRSOther IRS Forms (4000–6999)

Official form guide

Form 4626: 4626

IRS Form 4626 is an application for an extension of time to file a tax return for certain taxpayers who are not eligible for the automatic six‑month extension. Use it when you need more time beyond the standard extension period.

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Form Overview

IRS Form 4626 - 4626

IRS Form 4626 is an application for an extension of time to file a tax return for certain taxpayers who are not eligible for the automatic six‑month extension. Use it when you need more time beyond the standard extension period.

The form captures the taxpayer’s identification, the tax year, the reason for the request, and the additional days of extension sought.

Risk Radar

Scan points
  • 1An unsigned Form 4626 is automatically rejected.
  • 2Submitting after the original deadline
  • 3Leaving the reason section blank or vague
  • 4Requesting more days than allowed
  • 5Incorrect taxpayer identification numbers

Plain English

If you missed the regular filing deadline and the usual automatic extension doesn’t apply to you, you can ask the IRS for extra time with this form. It’s a short request that explains why you need the extra days.

Submission Date

  • Filing date: 2026-02-02 14:10:50
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

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Glossary Terms

identificationperiodmonth

Hover a term to preview the meaning.

What this form is for

  • Use when you need an extension beyond the automatic six‑month period.
  • Do not use if you qualify for the standard automatic extension.
  • Check Form 4868 first; if it applies, Form 4626 is unnecessary.

Form selector

Use this form or another form?

Missed regular deadline but qualify for automatic extension

Grants up to 6 months automatically

✓ Verify eligibility before filing Form 4626

Form 4868

Requesting installment agreement

Separate process for payment plans

✓ Not a filing‑extension request

Form 9465

Deadline or filing window

The request must be received by the IRS before the original filing deadline or before the automatic six‑month extension ends, whichever comes first. Late requests are denied and may trigger penalties.

  • —Days requested | Add to original deadline date | New extended deadline | Verify not exceeding IRS maximum

Checklist

What you need before filling it out

1

Taxpayer ID

Social Security Number or EIN · Tax return or prior notice

⚠ Typos common✕ High
2

Tax year

Calendar year of return · Prior year return

⚠ Wrong year entered✕ Medium
3

Reason for extension

Written explanation · Personal or business records

⚠ Too brief or generic✕ Medium
4

Signature

Handwritten signature · Original form

⚠ Missing or illegible✕ High

Before you submit

  1. 1Downloaded the latest edition of Form 4626
  2. 2Entered correct SSN/EIN
  3. 3Specified the correct tax year
  4. 4Calculated the exact number of extra days needed
  5. 5Provided a clear, factual reason
  6. 6Signed and dated the form
  7. 7Printed on single‑sided 8.5" x 11" paper
  8. 8Used the correct IRS mailing address
  9. 9Included a self‑addressed stamped envelope if requesting a response
  10. 10Retained a photocopy of the completed form
  11. 11Sent via trackable mail service

How to file this form

  1. 1Download Form 4626 from IRS.gov
  2. 2Print and fill out all required fields by hand or typed PDF
  3. 3Write a concise reason for the extension request
  4. 4Sign and date the form
  5. 5Place the form in an envelope with the correct IRS address
  6. 6Mail the envelope using a service that provides delivery confirmation
  7. 7Keep the mailing receipt and a copy of the form for your records

Known limitations

  1. 1Form 4626 cannot be e‑filed; only paper submission is accepted
  2. 2The IRS does not publish a maximum number of extra days; requests are evaluated case‑by‑case
  3. 3No fee is listed, but the IRS may assess penalties if the request is denied
  4. 4The form does not provide a status tracking number

Field map

Compact field-by-field guide

6 fields

General Info

2 items

Taxpayer Name and TIN

Full legal name and taxpayer identification number (SSN or EIN).

Requiredtext
Address

Current mailing address.

Requiredtext

Details

2 items

Required Information

Complete all applicable sections of this form according to the official IRS instructions.

Requiredtext
Amount (if applicable)

Enter the relevant dollar amount if this form involves tax calculation.

amount

Certification

1 items

Certification Statement

Read and acknowledge any certifications required by this form.

Requiredcheckbox

Signatures

1 items

Signature

Sign and date. Unsigned forms cannot be processed.

Requiredsignature
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Current form status
IRS

Form 4626 is active for the 2024 tax year. The IRS updates the edition annually; verify the edition date on the PDF before filing.

What changed or needs a fresh check

  • Edition date – confirm the PDF shows the current tax year
  • Fee – no filing fee is required for Form 4626
  • Mailing address – use the address in the instructions for your state
  • Signature line – ensure it is signed and dated
  • Paper size – PDF must be printed on standard 8.5" x 11" paper

Form Preview

Form 4626 page 1

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Form 4626 page 2

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Quick Facts

Taxpayers who are ineligible for the automatic six‑month extension and need additional filing time submit Form 4626.
The form captures the taxpayer’s identification, the tax year, the reason for the request, and the additional days of extension sought.
File Form 4626 before the original filing deadline or before the automatic extension expires, whichever is earlier.
Mail the completed form to the IRS address listed in the instructions for the specific tax year; electronic filing is not available for this form.
Errors can lead to denial of the extension, resulting in late‑filing penalties and interest on any tax due.
1. Download the current edition of Form 4626 from IRS.gov. 2. Fill in your name, SSN/EIN, tax year, and the exact number of extra days requested. 3. Provide a concise, factual reason for the extension. 4. Sign and date the form. 5. Mail it to the address in the instructions before the deadline.

Downloads

Blank Form 4626↗Instructions↗

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After you file

  1. 1File the mailed receipt and tracking number in your tax folder
  2. 2Monitor mail for any IRS response within 30 days
  3. 3If approved, note the new filing deadline in your calendar
  4. 4If denied, calculate any penalties and consider filing the return immediately
  5. 5Keep the copy of Form 4626 with your tax records for at least three years
  6. 6Update any tax software with the new deadline if applicable
  7. 7Notify any tax preparer you work with about the extension

Sources

  • SRCForm 4626 title and purposeIRS official form description
  • SRCEligibility criteriaIRS instructions for Form 4626
  • SRCNo filing feenoted in the form instructions
  • SRCMailing addresslisted in the form’s instruction page
  • SRCSignature requirementline present on the form
  • SRCEdition dateappears on the PDF header
  • SRCElectronic filing not availableIRS guidance on Form 4626
  • SRCDeadline logicIRS instructions state request must be received before original deadline or automatic extension

Common confusion points

Automatic vs. special extension

Many think Form 4626 replaces Form 4868

→ Verify eligibility for automatic extension first

How many days can be requested

No fixed limit listed

→ Request only the days you truly need and be prepared to justify

Electronic filing

Some expect e‑file

→ Form 4626 must be mailed

Fee requirement

Some forms have fees

→ Form 4626 has no fee, but penalties may apply if denied

State‑specific address

Addresses differ by taxpayer location

→ Use the address in the current instructions

Workflow map

Related forms and next steps

4 signals

Before

Form 1040 – regular tax return filing

Current

4626

After

Form 1040 – file the return by the new deadline granted

Often used with

Form 4868 – automatic six‑month extension (if eligible)

⚠ If something goes wrong

  • Form 1127 – Request for Delay of Notice or Assessment

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Source transparency

Copyright & Licensing - US Government Forms

Independent guide

BrieflyGo links to and explains official public form sources. We are not a government agency, and this page is for general form guidance, not legal advice.

Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Verify current license terms with the source agency before reuse outside this platform.

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