990 Sch. O

Supplemental Information to Form 990 or 990-EZ

Agency
IRS
Revision
Rev. December 2024
Fillable fields
3
Pages
1
Official source
IRS form page
Checked
October 21, 2026
Fill 990 Sch. O online
Page 1 of form 990 Sch. O

Schedule O (Form 990): Supplemental Information to Form 990 or 990-EZ

Schedule O (Form 990) is the supplemental information schedule for Form 990 and Form 990-EZ. The schedule says to complete it "to provide information for responses to specific questions on Form 990 or 990-EZ or to provide any additional information," and to attach it to Form 990 or Form 990-EZ.

The IRS About Form 990 page says an organization should use Schedule O, rather than separate attachments, to provide the IRS with narrative information required for responses to specific questions on Form 990 or 990-EZ, and to explain the organization's operations or responses to various questions. The About page says tax-exempt organizations, nonexempt charitable trusts and section 527 political organizations file Form 990.

The schedule is a single page. It asks for the name of the organization and its employer identification number, and the rest of the page is open space for the explanations. It is marked "Open to Public Inspection." You can fill it out free in your browser on this page and download the result without an account.

Top of page 1 of Schedule O (Form 990): Supplemental Information to Form 990 or 990-EZ, as printed by IRS

What's on Schedule O (Form 990)

Header

The title, OMB No. 1545-0047, the revision date and the line "Attach to Form 990 or Form 990-EZ."

Name of the organization

A box at the top of the page for the name of the organization.

Employer identification number

A box beside the name for the organization's employer identification number (EIN).

Space for explanations

The rest of the page is open space for the narrative information and explanations the organization adds.

Public inspection notice

The header carries the note "Open to Public Inspection."

Footer

A pointer to the Paperwork Reduction Act Notice in the Instructions for Form 990 or 990-EZ, and Cat. No. 51056K.

How to fill out Schedule O (Form 990)

  1. 1

    Name

    Enter the name of the organization in the box at the top.

  2. 2

    EIN

    Enter the organization's employer identification number in the box beside the name.

  3. 3

    Answer specific questions

    Write the narrative information that Form 990 or 990-EZ calls for in response to specific questions. The schedule points to www.irs.gov/Form990 for instructions.

  4. 4

    Add other explanations

    Add any explanation of the organization's operations or of its responses to other questions, instead of using separate attachments.

  5. 5

    Attach it

    Attach the schedule to the organization's Form 990 or Form 990-EZ.

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Where it goes and what to know

Where it goes

The schedule says "Attach to Form 990 or Form 990-EZ." It is not filed on its own.

Instead of separate attachments

The About Form 990 page says an organization should use Schedule O rather than separate attachments for narrative answers and explanations.

Public inspection

The schedule is marked "Open to Public Inspection."

Instructions

The schedule says to go to www.irs.gov/Form990 for instructions and the latest information. Its Paperwork Reduction Act Notice is in the Instructions for Form 990 or 990-EZ.

Related forms

Who fills out Schedule O (Form 990)?

  • Form 990 filers

    The About page says tax-exempt organizations, nonexempt charitable trusts and section 527 political organizations file Form 990, which Schedule O supplements.

  • Form 990-EZ filers

    The schedule's own title names both returns, and it says to attach it to Form 990 or Form 990-EZ.

  • Organizations answering specific questions

    The About page says Schedule O provides the narrative information required for responses to specific questions on Form 990 or 990-EZ.

  • Organizations explaining operations

    The About page also says an organization uses it to explain its operations or its responses to various questions, rather than separate attachments.

  • Public readers

    The schedule is marked "Open to Public Inspection," so what the organization writes on it can be seen by the public.

Schedule O is completed by the organization that files Form 990 or Form 990-EZ and goes to the IRS attached to that return.

Official sources and the blank

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Questions about Form 990 Sch. O

Is Schedule O filed by itself?

No. The schedule says to attach it to Form 990 or Form 990-EZ.

What goes on Schedule O?

The About Form 990 page says narrative information required for responses to specific questions on Form 990 or 990-EZ, and explanations of the organization's operations or responses to various questions.

Can Schedule O be used with Form 990-EZ?

Yes. Its full name is Supplemental Information to Form 990 or 990-EZ, and it says to attach it to either return.

Is Schedule O public?

The schedule is marked "Open to Public Inspection."

Where are the instructions for Schedule O?

The schedule points to www.irs.gov/Form990 for instructions and the latest information, and to the Instructions for Form 990 or 990-EZ for its Paperwork Reduction Act Notice.