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IRSCorporate Tax (1120 Series)

Official form guide

Form 1120-SG: 1120 (Schedule G)

IRS Form 1120 Schedule G is used to provide information on certain persons owning the corporation’s voting stock. It must be filed by corporations that answer 'Yes' to Form 1120 Schedule K Questions 4a or 4b. The form requires listing entities, individuals, or estates that own directly 20% or more, or directly or indirectly 50% or more of voting stock.

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Form Overview

IRS Form 1120-SG - 1120 (Schedule G)

IRS Form 1120 Schedule G is used to provide information on certain persons owning the corporation’s voting stock. It must be filed by corporations that answer 'Yes' to Form 1120 Schedule K Questions 4a or 4b. The form requires listing entities, individuals, or estates that own directly 20% or more, or directly or indirectly 50% or more of voting stock.

Part I collects information on foreign or domestic corporations, partnerships, trusts, or tax-exempt organizations that own the specified voting stock. Part II collects information on individuals or estates that own the specified voting stock. Each part requires name, identifying number, type/country, and percentage owned.

Risk Radar

Scan points
  • 1Failing to apply constructive ownership rules could cause underreporting of stock ownership.
  • 2Listing a disregarded entity instead of its owner (see instructions).
  • 3Failing to report indirect ownership through partnerships or trusts.
  • 4Not using section 267(c) constructive ownership rules (excluding 267(c)(3)).
  • 5Omitting entities that own 20% or more directly, or 50% or more directly or indirectly.

Plain English

This form tells the IRS who really controls a corporation by listing large shareholders. Corporations use it to report any entity, individual, or estate that owns at least 20% directly, or 50% directly or indirectly, of the voting stock. It attaches to the corporation's annual tax return (Form 1120).

Submission Date

  • Filing date: 2012-07-17 00:00:00
  • 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

Hover a term to preview the meaning.

What this form is for

  • Use this form when the corporation answers 'Yes' to Form 1120, Schedule K, Questions 4a or 4b, to provide information on entities, individuals, or estates that own directly 20% or more, or directly or indirectly 50% or more of the total voting power of all classes of the corporation's stock entitled to vote.
  • Do not use it when the corporation does not answer 'Yes' to Form 1120 Schedule K Questions 4a or 4b, or when no owner meets the ownership thresholds.
  • Check Form 1120 Schedule K Questions 4a and 4b instead when determining if Schedule G is required.

Form selector

Use this form or another form?

Filing a consolidated return

List parent corporation, not subsidiaries

Confirm you are filing a consolidated return

Form 1120

Owner is a disregarded entity

List entity owner, not disregarded entity

Verify if owner is an entity or individual

Form 1120

Owner of disregarded entity is an individual

List individual in Part II, not Part I

Determine if owner is individual

Form 1120

Need to determine if Schedule G is required

Answer Yes to Questions 4a or 4b triggers filing

Review Schedule K questions

Form 1120 Schedule K

Deadline or filing window

Not stated in the official source. Since the form attaches to Form 1120, the filing deadline is the same as Form 1120, but this is not provided in the source.

Checklist

What you need before filling it out

1

Part I: Name of Entity

Entity name as on records · Corporate records

Listing subsidiary instead of parent in consolidated returnHigh
2

Part I: Employer Identification Number

EIN (if any) · IRS correspondence or entity records

Leaving blank when EIN existsMedium
3

Part I: Type of Entity

Corporation, partnership, trust, or tax-exempt organization · Entity formation documents

Selecting wrong typeMedium
4

Part I: Country of Organization

Country where entity is organized · Entity documents

Using country of citizenship insteadLow
5

Part I: Percentage Owned in Voting Stock

Direct and indirect ownership percentage · Ownership records

Not applying constructive ownership rulesHigh
6

Part II: Name of Individual or Estate

Full name · Identification documents

Listing entity instead of individualHigh
7

Part II: Identifying Number

SSN or EIN (if any) · Tax documents

Using wrong number typeMedium
8

Part II: Country of Citizenship

Citizenship of individual or decedent for estate · Passport or estate documents

Using country of residenceMedium

Before you submit

  1. 1Confirm that the corporation answered 'Yes' to Form 1120 Schedule K Question 4a or 4b
  2. 2Verify that all entities listed in Part I meet the ownership thresholds (direct 20% or more, or direct/indirect 50% or more)
  3. 3Ensure constructive ownership rules under section 267(c) are applied correctly
  4. 4For consolidated returns, list parent corporation only, not subsidiary members
  5. 5For disregarded entities, list the entity owner, not the disregarded entity
  6. 6If owner of disregarded entity is an individual, list in Part II
  7. 7Complete all columns for each entry: name, EIN, type, country, percentage
  8. 8Attach Schedule G to Form 1120 before filing
  9. 9Keep a copy for records
  10. 10Use the current revision (12-2011)

How to file this form

  1. 1Determine if Form 1120 Schedule K Questions 4a or 4b are answered 'Yes'
  2. 2Identify all entities, individuals, and estates that meet the ownership thresholds
  3. 3Apply constructive ownership rules under section 267(c)
  4. 4Complete Part I for entities (corporations, partnerships, trusts, tax-exempt organizations) that meet thresholds
  5. 5Complete Part II for individuals and estates that meet thresholds
  6. 6Enter the required information in each column
  7. 7Attach Schedule G to Form 1120
  8. 8File Form 1120 with Schedule G attached by the due date of the corporation's tax return

Known limitations

  1. 1Constructive ownership rules of section 267(c) apply, but section 267(c)(3) is excluded
  2. 2Family attribution rules have specific exceptions; see examples in instructions
  3. 3For affiliated groups filing consolidated returns, list only the parent corporation
  4. 4For disregarded entities, list the entity owner; if the owner is an individual, list in Part II
  5. 5The form does not apply if the corporation answers 'No' to Schedule K Questions 4a and 4b

Field map

Compact field-by-field guide

9 fields

Entity Info

2 items

Corporation Name and EIN

Full legal name of the corporation and its Employer Identification Number.

Requiredtext
Address and Date Incorporated

Current mailing address and date of incorporation.

Requiredtext

Income

3 items

Gross Receipts or Sales

Total revenue from business operations before deducting costs.

Requiredamount
Cost of Goods Sold

Direct costs attributable to producing goods sold by the corporation.

amount
Total Income

Gross receipts minus cost of goods sold and returns/allowances.

Requiredamount

Deductions

1 items

Total Deductions

Sum of all business expenses including compensation, rent, interest, taxes, and depreciation.

Requiredamount

Tax

2 items

Taxable Income

Total income minus total deductions.

Requiredamount
Total Tax

Tax calculated on taxable income using the applicable corporate tax rate, minus any credits.

Requiredamount

Signatures

1 items

Officer Signature

An authorized corporate officer must sign and date the return.

Requiredsignature
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Current form status
IRS

The current edition is Revision December 2011 (12-2011). The source does not indicate any subsequent changes or a 'latest information' page.

What changed or needs a fresh check

  • Edition date — confirm revision reads December 2011 (12-2011)
  • Fee — Not stated in the official source — verify on the agency site
  • Mailing address — Not stated in the official source — verify on the agency site
  • Signature — Schedule G is attached to Form 1120; sign Form 1120 as part of the return
  • OMB No. — 1545-0123 is printed on the form
  • Paperwork Reduction Act Notice — see the Instructions for Form 1120

Quick Facts

Every corporation that answers 'Yes' to Form 1120, Schedule K, Questions 4a or 4b must file Schedule G to provide additional information on certain entities, individuals, and estates owning the corporation’s voting stock.
Part I collects information on foreign or domestic corporations, partnerships, trusts, or tax-exempt organizations that own the specified voting stock. Part II collects information on individuals or estates that own the specified voting stock. Each part requires name, identifying number, type/country, and percentage owned.
Not stated in the official source. The form is attached to Form 1120, but no separate due date is provided.
Not stated in the official source. The form is attached to Form 1120; the filing address would be the same as for Form 1120.
Not stated in the official source. The instructions do not specify penalties for incorrect or late filing.
Complete Part I if the corporation answered 'Yes' to Form 1120, Schedule K, Question 4a, listing each entity that meets the ownership thresholds. Complete Part II if the corporation answered 'Yes' to Question 4b, listing individuals or estates. Apply constructive ownership rules under section 267(c) (excluding 267(c)(3)). Attach the completed Schedule G to Form 1120.

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After you file

  1. 1Retain a copy of Schedule G with the corporation's tax return
  2. 2Keep records for at least 3 years after filing
  3. 3If an error is discovered, file an amended Form 1120X with corrected Schedule G
  4. 4Monitor for IRS notices regarding ownership information
  5. 5Ensure that any changes in ownership are reported on future returns

Sources

  • SRCForm p.1 — Title and purpose: Schedule G (Form 1120) Information on Certain Persons Owning the Corporation’s Voting Stock
  • SRCForm p.1 — Part I columns (i)-(v) for entities
  • SRCForm p.1 — Part II columns (i)-(iv) for individuals/estates
  • SRCForm p.2 — Purpose of Form: provide information on certain owners
  • SRCForm p.2 — Who Must File: corporations answering Yes to Schedule K Q4a or Q4b
  • SRCForm p.2 — Constructive ownership rules apply
  • SRCForm p.2 — Specific Instructions for Part I and Part II
  • SRCForm p.2 — Example 2 and 3 illustrate family attribution rules
  • SRCForm p.2 — For consolidated returns, list parent corporation
  • SRCForm p.2 — For disregarded entities, list entity owner; if owner is individual, list in Part II

Common confusion points

When to list in Part I vs Part II

Part I is for entities (corporations, partnerships, trusts, tax-exempt organizations); Part II is for individuals and estates

Check the type of owner: entity or individual/estate

How to apply constructive ownership

Rules under section 267(c) attribute ownership from entities to owners and among family members

Review examples in instructions and apply attribution rules step by step

What percentage to report

Report direct and indirect ownership as calculated

Use the total voting power percentage, including attributed ownership

How to handle disregarded entities

List the entity owner, not the disregarded entity itself

Determine if the owner is an entity or individual; if individual, list in Part II

How to handle consolidated returns

List the parent corporation only, not subsidiary members

Confirm you are filing a consolidated return and identify the parent

What is country of citizenship for an estate

The citizenship of the decedent

Use the decedent's citizenship, not the estate's country of administration

What identifying number to use

For entities, EIN; for individuals, SSN or ITIN; for estates, EIN

Use the number associated with the owner's tax filings

Workflow map

Related forms and next steps

4 signals

Before

Form 1120 Schedule K — determines if Schedule G is required

Current

1120-SG

After

Form 1120X — if correction needed

Often used with

Form 1120 — Schedule G is attached to Form 1120

⚠ If something goes wrong

  • Form 1120X — to amend ownership information

Questions about IRS Form 1120-SG

What is IRS Form 1120-SG used for?

This form tells the IRS who really controls a corporation by listing large shareholders. Corporations use it to report any entity, individual, or estate that owns at least 20% directly, or 50% directly or indirectly, of the voting stock. It attaches to the corporation's annual tax return (Form 1120).

Who must file IRS Form 1120-SG?

Every corporation that answers 'Yes' to Form 1120, Schedule K, Questions 4a or 4b must file Schedule G to provide additional information on certain entities, individuals, and estates owning the corporation’s voting stock.

What information does IRS Form 1120-SG require?

Part I collects information on foreign or domestic corporations, partnerships, trusts, or tax-exempt organizations that own the specified voting stock. Part II collects information on individuals or estates that own the specified voting stock. Each part requires name, identifying number, type/country, and percentage owned.

How do I complete IRS Form 1120-SG?

Complete Part I if the corporation answered 'Yes' to Form 1120, Schedule K, Question 4a, listing each entity that meets the ownership thresholds. Complete Part II if the corporation answered 'Yes' to Question 4b, listing individuals or estates. Apply constructive ownership rules under section 267(c) (excluding 267(c)(3)). Attach the completed Schedule G to Form 1120.

When to list in Part I vs Part II — what should I check?

Part I is for entities (corporations, partnerships, trusts, tax-exempt organizations); Part II is for individuals and estates Check the type of owner: entity or individual/estate

How to apply constructive ownership — what should I check?

Rules under section 267(c) attribute ownership from entities to owners and among family members Review examples in instructions and apply attribution rules step by step

What percentage to report — what should I check?

Report direct and indirect ownership as calculated Use the total voting power percentage, including attributed ownership

How to handle disregarded entities — what should I check?

List the entity owner, not the disregarded entity itself Determine if the owner is an entity or individual; if individual, list in Part II

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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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