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IRSExempt Organizations & Benefit Plans (5000 Series)

Official form guide

Form 5558: 5558

IRS Form 5558 is the application for an automatic 6‑month extension to file Form 1120‑F, the U.S. Income Tax Return of a Foreign Corporation. Use it when a foreign corporation cannot meet the original filing deadline.

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Form Overview

IRS Form 5558 - 5558

IRS Form 5558 is the application for an automatic 6‑month extension to file Form 1120‑F, the U.S. Income Tax Return of a Foreign Corporation. Use it when a foreign corporation cannot meet the original filing deadline.

The form captures the corporation’s name, EIN, address, tax year, original filing deadline, and a brief statement of why an extension is needed.

Risk Radar

Scan points
  • 1A missed or rejected extension can trigger immediate penalties.
  • 2Missing the original filing deadline
  • 3Incorrect EIN or tax year
  • 4Wrong mailing address for the IRS service center
  • 5Omitting the required reason statement

Plain English

If a foreign company needs extra time to get its U.S. corporate tax return ready, it fills out Form 5558. The form asks for basic identification and the reason you need the extension, then the IRS grants you up to six more months to file.

Submission Date

  • Filing date: 2025-01-30 22:10:24
  • 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

identificationincome taxforeignincomemonth

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What this form is for

  • Use when you need a 6‑month extension for Form 1120‑F.
  • Do not use for individuals or domestic corporations.
  • If you need a longer extension or have a different filing issue, check Form 7004 or other specific instructions.

Form selector

Use this form or another form?

Need a 6‑month extension for a partnership return

Covers multiple return types

✓ Verify that Form 7004 includes foreign corporation returns before filing

Form 7004

Requesting a longer than 6‑month extension

Extension beyond 6 months requires IRS approval

✓ Confirm IRS acceptance before the original deadline

Form 1120‑F with attached statement

Deadline or filing window

The extension request must be received by the IRS on or before the original due date of Form 1120‑F. If the request is late, the corporation is subject to the standard late‑filing penalty and interest from the original deadline.

Checklist

What you need before filling it out

1

Corporation name and EIN

Articles of incorporation or IRS notice · Form header

⚠ Misspelled name or wrong EIN can cause denial✕ High
2

Tax year and original deadline

Prior year return or tax calendar · Form 1120‑F instructions

⚠ Incorrect year leads to processing error✕ Medium
3

Reason for extension

Internal memo or pending documentation list · Reason field

⚠ Vague statement may be rejected✕ Low
4

Signature

Authorized officer’s signature card · Signature line

⚠ Missing or unauthorized signature voids request✕ High

Before you submit

  1. 1Verify the form edition matches the filing year
  2. 2Check EIN and corporation name for exact match with IRS records
  3. 3Confirm the original Form 1120‑F deadline
  4. 4Enter a clear, concise reason for the extension
  5. 5Sign the form as an authorized officer
  6. 6Use the correct IRS mailing address for foreign corporations
  7. 7Include a self‑addressed stamped envelope if requesting a return receipt
  8. 8Make a dated copy for your records before mailing
  9. 9If e‑filing, ensure the electronic submission is confirmed
  10. 10Track the mailing to confirm receipt by the deadline

How to file this form

  1. 1Download the latest Form 5558 from IRS.gov
  2. 2Complete identification fields (name, EIN, address, tax year)
  3. 3Check the box for a 6‑month extension and write the reason
  4. 4Sign and date the form
  5. 5Place the form in an envelope with correct IRS service center address
  6. 6Mail via certified mail or use the IRS e‑file system if available
  7. 7Retain the mailing receipt and a copy of the submitted form

Known limitations

  1. 1Form only grants a 6‑month automatic extension; longer extensions require separate approval
  2. 2No fee is listed, but the IRS may assess penalties if the extension is not granted
  3. 3Electronic filing is limited to certain IRS processing centers
  4. 4The form does not replace the need to file Form 1120‑F by the extended deadline

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 5558 is available for the 2024 tax year. The IRS updates the form annually; verify the edition date before use.

What changed or needs a fresh check

  • Edition date – confirm the form is dated for the current tax year
  • Fee – no fee for filing Form 5558
  • Mailing address – use the address listed for foreign corporations in the instructions
  • Signature line – ensure an authorized officer signs
  • Electronic filing option – verify if e‑file is accepted for your situation

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Quick Facts

Foreign corporations that are required to file Form 1120‑F and need more time to do so.
The form captures the corporation’s name, EIN, address, tax year, original filing deadline, and a brief statement of why an extension is needed.
File Form 5558 on or before the original due date of Form 1120‑F, typically the 15th day of the 4th month after the end of the corporation’s tax year.
Mail the completed form to the IRS address listed in the instructions for the corporation’s filing location, or submit electronically if the IRS e‑file system is available for Form 1120‑F extensions.
Errors can cause the extension request to be denied, leaving the corporation liable for late‑filing penalties and interest.
1. Gather the corporation’s EIN, tax year, and original filing deadline. 2. Complete the identification section and check the box for a 6‑month extension. 3. Write a concise reason for the extension (e.g., pending documentation). 4. Sign the form and mail it to the correct IRS service center before the original deadline.

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After you file

  1. 1Keep the certified‑mail receipt and copy of the filed form
  2. 2Monitor IRS correspondence for confirmation of the extension
  3. 3Update internal filing calendar with the new due date
  4. 4Prepare and file Form 1120‑F before the extended deadline
  5. 5If the extension is denied, calculate and pay any applicable penalties promptly
  6. 6Store all related documents for at least three years

Sources

  • SRCForm 5558 title and purposeIRS official form description
  • SRCEligibilityforeign corporations filing Form 1120‑F
  • SRCExtension lengthautomatic six‑month period per IRS instructions
  • SRCNo filing feeindicated in the form instructions
  • SRCMailing addresslisted in the Form 5558 instructions for foreign corporations
  • SRCSignature requirementstandard on IRS extension forms
  • SRCEdition datefound on the top of the PDF
  • SRCElectronic filing availabilitynoted as limited in the instructions

Common confusion points

Extension length

Some think the form can grant more than 6 months

→ Verify the 6‑month limit in the instructions

Who can file

Individuals sometimes try to use it

→ Only foreign corporations filing Form 1120‑F are eligible

Electronic filing availability

Users assume all forms can be e‑filed

→ Confirm e‑file option for Form 5558 in the current edition

Mailing address

Different IRS centers for domestic vs. foreign returns

→ Use the address specified for foreign corporations

Reason statement

Vague explanations cause denial

→ Provide a specific, factual reason

Workflow map

Related forms and next steps

4 signals

Before

Form 1120‑F – the return that needs the extension

Current

5558

After

Form 1120‑F – file by the extended deadline

Often used with

Form 7004 – for other entity types needing a 6‑month extension

⚠ If something goes wrong

  • Notice of Penalty – IRS may issue a penalty notice if the extension is not approved

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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.
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