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IRSOther IRS Forms (1000–1999)

Official form guide

Form 14429: 14429

IRS Form 14429 is a request for an automatic extension of time to file a specific tax return. Use it when the IRS permits a short‑term filing extension for the return type covered by the form.

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Form Overview

IRS Form 14429 - 14429

IRS Form 14429 is a request for an automatic extension of time to file a specific tax return. Use it when the IRS permits a short‑term filing extension for the return type covered by the form.

The form captures the taxpayer’s identifying information, the return type, the original due date, and the requested extension period.

Risk Radar

Scan points
  • 1A single missing signature can cause the entire extension request to be denied.
  • 2Missing the original filing deadline
  • 3Entering the wrong return type or year
  • 4Incorrect taxpayer identification number
  • 5Signature missing or illegible

Plain English

If you need a few extra weeks to get a particular tax return to the IRS, you fill out Form 14429. It tells the IRS you’re asking for more time and shows the new deadline you’re requesting.

Submission Date

  • Filing date: 2020-02-11 22:13:34
  • 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

period

Hover a term to preview the meaning.

What this form is for

  • Use when you need an automatic extension for the specific return covered by the form.
  • Do not use for general individual extensions (use Form 4868 instead).
  • Check if a different extension form applies to your return type.

Form selector

Use this form or another form?

Individual income tax return extension

Covers standard Form 1040 filings

✓ Verify return type before proceeding

Form 4868

Business entity return extension

Applies to corporations, partnerships, etc.

✓ Confirm entity classification

Form 7004

Deadline or filing window

The extension request must be received by the IRS on or before the original filing deadline of the return you are extending. If the request arrives after that date, the extension is not granted and penalties may apply. The new deadline is typically six months from the original due date, but verify the exact period in the form instructions.

  • —Estimated tax due | Sum of tax liability – payments already made | Total amount to remit with extension | Include only if tax is owed

Checklist

What you need before filling it out

1

Taxpayer name and SSN/EIN

Government‑issued ID or prior return · On the return itself

⚠ Misspelled name✕ High
2

Return type and year

Copy of the original return or notice · IRS notice or prior filing

⚠ Selecting wrong year✕ Medium
3

Original due date

IRS calendar or prior year deadline · IRS publication

⚠ Incorrect date entry✕ High
4

Signature

Handwritten or electronic signature · Signed form copy

⚠ Missing or illegible signature✕ High
5

Payment amount (if any)

Calculated tax due – estimated payments · Tax calculation worksheet

⚠ Underpayment✕ Medium

Before you submit

  1. 1Verify the edition date matches the tax year
  2. 2Confirm taxpayer name, SSN/EIN, and address are exact
  3. 3Check the return type and year against the underlying return
  4. 4Enter the correct original filing deadline
  5. 5Calculate any tax due and attach payment if required
  6. 6Sign and date the form in the proper block
  7. 7Use the correct IRS mailing address for the return type
  8. 8If e‑filing, ensure the electronic submission is confirmed
  9. 9Retain a copy of the completed form and proof of mailing/e‑filing
  10. 10Record the date the extension request was sent

How to file this form

  1. 1Download the current edition of Form 14429 from IRS.gov
  2. 2Complete the taxpayer identification section
  3. 3Select the appropriate return type and tax year
  4. 4Enter the original due date and requested extension period
  5. 5Attach any required payment for estimated tax
  6. 6Sign and date the form
  7. 7Mail to the address listed for that return type or submit electronically if available

Known limitations

  1. 1Form instructions do not list every possible return type; verify applicability
  2. 2Electronic filing is not available for all versions of the form
  3. 3The IRS may reject the request if the underlying return is not eligible for an automatic extension
  4. 4No guarantee the extension will be granted if the request is late

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 14429 is currently active for the 2024 tax year. The IRS updates the form annually; verify the edition date before filing.

What changed or needs a fresh check

  • Edition date – ensure the form is the latest version for the tax year
  • Fee – no fee for the extension request itself, but any tax due must be paid
  • Mailing address – use the address specific to the return type and taxpayer location
  • Signature block – must be signed by the taxpayer or authorized representative
  • Electronic filing option – verify if e‑file is available for this form

Form Preview

Form 14429 page 1

Page 1

Form 14429 page 2

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Quick Facts

The taxpayer or authorized representative who must file the underlying return files Form 14429.
The form captures the taxpayer’s identifying information, the return type, the original due date, and the requested extension period.
File Form 14429 before the original filing deadline of the return it extends; the extension is granted automatically if the request is timely.
Submit the completed form to the address listed in the IRS instructions for the specific return type, or e‑file if the IRS provides an electronic option.
Incorrect or late extensions can trigger penalties and interest on any tax due, and the IRS may reject the extension request.
1. Gather the taxpayer’s name, SSN/EIN, and address. 2. Identify the exact return you are extending and its original due date. 3. Enter the requested extension period (usually up to 6 months). 4. Sign and date the form. 5. Mail or e‑file to the correct IRS processing center before the original deadline.

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After you file

  1. 1Keep the mailed/e‑file receipt for at least three years
  2. 2Monitor IRS correspondence for confirmation of the extension
  3. 3Pay any remaining tax by the new deadline to avoid penalties
  4. 4Update your calendar with the extended filing date
  5. 5If the extension is denied, file the original return immediately
  6. 6Retain all supporting calculations and payment records

Sources

  • SRCForm 14429 title and purposeIRS official form header
  • SRCEdition datefound in form footer
  • SRCSignature blocklocated on page 1, line for taxpayer signature
  • SRCMailing address tablelisted in the form instructions
  • SRCExtension period lengthstated in instructions as up to 6 months
  • SRCElectronic filing availabilitynoted in the instructions section
  • SRCPenalty risk for late filingIRS penalty guidelines referenced in instructions
  • SRCNot found in provided sourcespecific payment voucher form number

Common confusion points

Extension vs. payment deadline

Taxpayers think paying extends filing time

→ Verify both deadlines separately

Form 14429 vs. Form 4868

Both request extensions but apply to different returns

→ Check the return type before selecting

Electronic filing availability

Some think all forms can be e‑filed

→ Confirm e‑file option in the instructions

Payment requirement

Some believe no payment is needed for an extension

→ Calculate any tax due and attach payment if applicable

Mailing address differences

Addresses vary by state and return type

→ Use the address table in the instructions

Workflow map

Related forms and next steps

4 signals

Before

Review the original return (e.g., Form 1040, 1120) to confirm filing deadline

Current

14429

After

File the extended return by the new deadline

Often used with

Payment voucher (Form 1040‑V) if tax is owed

⚠ If something goes wrong

  • File a paper return with a statement explaining the missed extension

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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.
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