Nonprofit · EIN 81-3557916
OPENINTRO INC
Tax-exempt · DOVER, DE 19901
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $56,500 | $21,967 | $34,533 | $400,147 | $449 | $399,698 |
| December 31, 2024 | 990 | $39,436 | $27,251 | $12,185 | $329,147 | $1,282 | $327,865 |
| December 31, 2023 | 990 | $52,355 | $31,716 | $20,639 | $285,688 | $775 | $284,913 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $2,850
- Program service revenue
- $3,400
- Investment income
- $13,780
- Royalties
- $34,989
- Other revenue
- $36,470
Expenses
- Grants and similar amounts paid
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Legal fees
- $531
- Program services (functional)
- $21,967
Balance sheet and other
- Total assets, start of year
- $329,147
- Total assets, end of year
- $400,147
- Total liabilities, end of year
- $449
- Net assets, end of year
- $399,698
- Publicly traded securities
- $312,371
- Net assets without donor restrictions
- $399,698
- Gross receipts
- $56,500
- Employees
- 0
- Volunteers
- 14
- Year formed
- 2016
- State of legal domicile
- DE
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| David Diez | Board Member, President Trustee or director, Officer | 7 | $0 |
| Jeremy Kraut-Ordover | Board Member, Treasurer Trustee or director, Officer | 0 | $0 |
| David Harrington | Board Member, Secretary Trustee or director, Officer | 5 | $0 |
990 for the year ended December 31, 2024: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| David Diez | Board Member, President Officer | 3 | $0 |
| Jeremy Kraut-Ordover | Board Member, Treasurer Officer | 1 | $0 |
| David Harrington | Board Member, Secretary Officer | 3 | $0 |
990 for the year ended December 31, 2023: 3 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| David Diez | Board Member, President Officer | 5 | $0 |
| Jeremy Kraut-Ordover | Board Member, Treasurer Officer | 1 | $0 |
| David Harrington | Board Member, Secretary Officer | 3 | $0 |
Address and contacts
- Address (IRS master file)
- 8 THE GREEN STE R, DOVER, DE 19901-3618
- In care of
- % DAVID M DIEZ
- Principal officer (990 for 2025)
- David Diez, 1241 Ashland Ave, St Paul, MN 55104
- Signed the 990
- David Diez, President
- Phone
- (612) 357-9947
- Website
- https://www.openintro.org
Mission
The mission of OpenIntro, Inc. is to make, support, and promote educational products that are free, transparent, or lower barriers to education. The primary focus is on college education materials.
Program accomplishments
- OpenIntro led to the sale of over 5,000 low-cost textbooks, which are priced at 80%+ less than typical textbooks (we offer books at about $25 paperback). We provided tens of thousands of free downloads of these textbooks, as all of our books are open source. We also provided provided services to teachers interested in other open-source textbooks.Expenses $21,967 · revenue $55,070
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 81-3557916
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2016
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- International, foreign affairs and national security (Q33)
- Assets (IRS master file)
- $400,147
- Income (IRS master file)
- $56,500
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $56,500 | $21,967 | $400,147 | IRS |
| 990 | December 2024 | $39,436 | $27,251 | $329,147 | IRS |
| 990 | December 2023 | $52,355 | $31,716 | $285,688 | XML |
| 990 | December 2022 | $64,745 | $23,438 | $256,311 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2019 | – | – | – | IRS |
| 990-EZ | December 2018 | – | – | – | IRS |
990-N: the IRS bulk file holds only the latest e-Postcard per organization; earlier years come from archived copies of that file since 2020 and can have gaps (the IRS e-Postcard search lists every one). 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS (search EIN 81-3557916).
Questions about OPENINTRO INC
- What is the EIN of OPENINTRO INC?
- The employer identification number (EIN) of OPENINTRO INC is 81-3557916.
- Is OPENINTRO INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2016.
- Are donations to OPENINTRO INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does OPENINTRO INC file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of OPENINTRO INC due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did OPENINTRO INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of OPENINTRO INC?
- The 990 for the year ended December 31, 2025 names David Diez.
- Who are the officers and directors of OPENINTRO INC?
- The 990 for the year ended December 31, 2025 lists 3 people; 0 received compensation from the organization.
- How much revenue does OPENINTRO INC have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $56,500, expenses of $21,967 and total assets of $400,147 at year end.
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