Schedule O (Form 990) 2025: Supplemental Information to Form 990 or 990-EZ
Schedule O (Form 990) is the IRS form titled “Supplemental Information to Form 990 or 990-EZ.” It is a schedule filed with Form 990.
Form Details
- Tax Year
- 2025
- Revision
- 2025
- Pages
- 1
- File Size
- 46 KB (PDF)
- Due Date
- May 15, 2026 (with Form 990) — extended: November 16, 2026
- Filed With
- Form 990
- Category
- Non-Profit & Exempt
Due dates are for calendar-year filers, as published by the IRS for the 2025 tax year; a weekend or legal holiday moves a due date to the next business day.
Who Uses Schedule O (Form 990)
Tax-exempt, non-profit and political organizations.
Zentavos can prepare and e-file this for you
A tax professional prepares and reviews your federal return — with Schedule O (Form 990) when your return needs it — and files it electronically with the IRS.
See Tax PrepFrequently Asked Questions
Download the blank Schedule O (Form 990) PDF from this page. It is the official IRS file, delivered from IRS.gov — Zentavos does not change it. You can also find it on the IRS's page for Schedule O (Form 990).
Yes. This is the 2025 revision of Schedule O (Form 990), the version for tax year 2025.
Yes. Zentavos prepares and e-files federal tax returns for individuals and businesses, including the forms and schedules each return needs. If Schedule O (Form 990) is part of your filing, our team can prepare it with your return — see Tax Prep to get started.
Source: IRS.gov — Schedule O (Form 990)