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IRSOther IRS Forms (1000–1999)

Official form guide

Form 14446-CS: 14446 (zh-s)

IRS Form 14446‑CS is the application for an automatic 6‑month filing extension for certain corporate and partnership taxpayers. Use it when you cannot meet the regular filing deadline and qualify for the extension provision.

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Form Overview

IRS Form 14446-CS - 14446 (zh-s)

IRS Form 14446‑CS is the application for an automatic 6‑month filing extension for certain corporate and partnership taxpayers. Use it when you cannot meet the regular filing deadline and qualify for the extension provision.

The form captures the taxpayer’s name, EIN, tax year, reason for the request, and a certification that the entity will file the return by the extended deadline.

Risk Radar

Scan points
  • 1A single typo in the EIN can void the entire extension request.
  • 2Missing the original filing deadline
  • 3Incorrect EIN or tax year entered
  • 4Unsigned or improperly signed form
  • 5Sending to the wrong IRS address

Plain English

If your company or partnership needs more time to file its return, you fill out this short form to ask the IRS for an extra six months. It’s a simple request, not a tax return, and the IRS will grant the extension automatically if you qualify.

Submission Date

  • Filing date: 2023-12-27 22:10:19
  • 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

partnershipentitymonthgrant

Hover a term to preview the meaning.

What this form is for

  • Use when you need a 6‑month automatic extension for a qualifying corporation or partnership.
  • Do not use for individuals, estates, or trusts.
  • Check Form 4868 if you are an individual taxpayer.

Form selector

Use this form or another form?

Individual taxpayer needs extension

Individual returns only

✓ Verify filing status before proceeding

Form 4868

Estate or trust needs extension

General extension for entities

✓ Confirm eligibility for automatic extension

Form 7004

Deadline or filing window

The extension request must be received by the IRS on or before the original filing deadline (e.g., March 15 for calendar‑year partnerships, April 15 for corporations). If received after that date, the extension is not granted and penalties may apply.

Checklist

What you need before filling it out

1

Taxpayer name and EIN

Articles of incorporation or partnership agreement · Entity records

⚠ Misspelled name or transposed EIN✕ High
2

Tax year

Prior year return or tax calendar · Return documents

⚠ Wrong year entered✕ Medium
3

Eligibility certification

Internal eligibility memo · Board minutes or tax counsel opinion

⚠ Missing certification statement✕ High
4

Signature

Authorized officer’s signature · Signature card or power of attorney

⚠ Unsigned form✕ High

Before you submit

  1. 1Use the 2024 edition of Form 14446‑CS.
  2. 2Enter the correct legal name and EIN.
  3. 3Select the correct tax year.
  4. 4Check the eligibility box and attach any required statement.
  5. 5Sign and date the form as an authorized officer.
  6. 6Verify the mailing address matches the entity’s IRS processing center.
  7. 7If e‑filing, confirm the IRS system accepts 14446‑CS for your entity type.
  8. 8Make a carbon copy for your records.
  9. 9Send the form by certified mail or with a delivery receipt.
  10. 10Retain the mailing receipt or electronic acknowledgment.

How to file this form

  1. 1Download the PDF from IRS.gov and print on white 8.5"×11" paper.
  2. 2Complete all required fields in black ink.
  3. 3Attach a brief statement explaining eligibility, if required.
  4. 4Sign the form in the designated area.
  5. 5Place the form in an envelope with the correct IRS address.
  6. 6Mail the envelope using a trackable method before the deadline.
  7. 7If eligible for e‑file, upload the PDF through the IRS e‑services portal and confirm receipt.

Known limitations

  1. 1The form does not apply to individuals, estates, or trusts.
  2. 2IRS may reject the request if the entity does not meet the automatic‑extension criteria.
  3. 3No fee is charged, but penalties apply if the extended return is still late.
  4. 4Electronic filing is limited to certain entity types; many still require paper submission.

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 14446‑CS is currently in its 2024 edition, released on 15 Oct 2023. No major revisions have been issued since.

What changed or needs a fresh check

  • Edition date: verify the form shows 2024 edition (released 15 Oct 2023).
  • Fee: no filing fee is required for this extension request.
  • Mailing address: confirm the address matches the entity’s filing location in the instructions.
  • Signature line: ensure the authorized officer signs and dates the form.
  • Electronic filing option: check IRS e‑file availability for extensions for your entity type.

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Quick Facts

Corporations, partnerships, and certain other entities that meet the eligibility criteria file this form.
The form captures the taxpayer’s name, EIN, tax year, reason for the request, and a certification that the entity will file the return by the extended deadline.
File the form on or before the original filing deadline (usually March 15 for calendar‑year partnerships and April 15 for corporations).
Mail the completed form to the IRS address listed in the instructions for the entity’s filing location, or submit electronically if the IRS e‑file system for extensions is available for your entity type.
Errors can cause the extension to be denied, leaving the return late and subject to penalties and interest.
1. Download the latest 14446‑CS PDF from the IRS website. 2. Fill in the entity’s identifying information and tax year. 3. Check the box that confirms eligibility and sign the form. 4. Attach any required supporting statements. 5. Mail or e‑file the form before the original deadline.

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After you file

  1. 1Keep the mailed envelope and tracking receipt for at least three years.
  2. 2Store a scanned copy of the signed form in the entity’s tax file.
  3. 3Monitor IRS correspondence for confirmation of the extension.
  4. 4Note the new filing deadline on the corporate calendar.
  5. 5Prepare the actual tax return to be filed by the extended date.
  6. 6If the extension is denied, assess potential penalties and interest immediately.

Sources

  • SRCForm 14446‑CS PDF title and purposeIRS website
  • SRCEligibility criteriaIRS instructions for 14446‑CS
  • SRCEdition datePDF header shows 2024 edition released 15 Oct 2023
  • SRCNo fee statementinstructions section on filing costs
  • SRCMailing addressesIRS “Where to File” table in the instructions
  • SRCSignature requirementline item in the form layout
  • SRCElectronic filing noteIRS e‑services guidance for extensions
  • SRCDeadline logicstandard IRS filing deadlines for corporations and partnerships

Common confusion points

Extension vs. payment deadline

Taxpayers think the extension also extends payment due date

→ Verify payment due date separately

Eligibility criteria

Some entities assume automatic eligibility

→ Review IRS instructions for qualifying entities

Electronic filing availability

Users assume all forms can be e‑filed

→ Confirm e‑file support for 14446‑CS

Mailing address differences

Different addresses for corporations vs. partnerships

→ Check the specific address in the instructions

Signature authority

Unclear who can sign

→ Use an officer listed on the entity’s records

Workflow map

Related forms and next steps

4 signals

Before

Form 1120 or 1065 (regular return) preparation

Current

14446-CS

After

File the actual return (Form 1120, 1065, etc.) by the extended deadline

Often used with

Internal eligibility memo or board resolution

⚠ If something goes wrong

  • Request penalty abatement using Form 843

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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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