Nonprofit · EIN 41-5018881
EXPONENTIAL FOUNDATION
Tax-exempt · TUKWILA, WA 98188
Address and contacts
- Address (IRS master file)
- 15154 65TH AVE S APT 905, TUKWILA, WA 98188-8543
- Mailing address (990-N for 2025)
- 15154 65th Ave S Apt 905, Tukwila WA 98188
- Principal officer (990-N for 2025)
- Graham Heath Brookins, 7x 15154 65th Ave S Apt 905 15154 6, Tukwila WA 98188
What it must file and when
IRS records say it files Form 990-N (e-Postcard). Gross receipts normally $50,000 or less. Its accounting year ends in March, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | March 31, 2026 | August 17, 2026 | 990-N on file |
| 2024 | March 31, 2025 | August 15, 2025 | Check at the IRS |
| 2023 | March 31, 2024 | August 15, 2024 | Check at the IRS |
IRS record
- EIN
- 41-5018881
- 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
- 2026
- Accounting year ends
- March
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Philanthropy, voluntarism and grantmaking foundations (T21)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2025 Officer: Graham Heath Brookins | March 31, 2026 | ≤ $50,000 receipts | – | – | e-Postcard |
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 41-5018881).
Questions about EXPONENTIAL FOUNDATION
- What is the EIN of EXPONENTIAL FOUNDATION?
- The employer identification number (EIN) of EXPONENTIAL FOUNDATION is 41-5018881.
- Is EXPONENTIAL FOUNDATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2026.
- Are donations to EXPONENTIAL FOUNDATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does EXPONENTIAL FOUNDATION file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of EXPONENTIAL FOUNDATION due?
- The return for tax year 2026 (the year ending March 31, 2027) is due August 16, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did EXPONENTIAL FOUNDATION last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2025 for the year ended March 31, 2026.
- Who is the principal officer of EXPONENTIAL FOUNDATION?
- The 990-N for 2025 names Graham Heath Brookins.
Other nonprofits in TUKWILA
- HARNISH FOUNDATION EIN 38-3730146 · last filed 990-PF for 2024
- HAASS FAMILY FOUNDATION EIN 26-1299150 · last filed 990-PF for 2025
- VICTOR DIPIETRO FAMILY FOUNDATION TRUST EIN 91-6573046 · last filed 990-PF for 2025
- DAVID C HAWLEY FOUNDATION EIN 43-1868122 · last filed 990-PF for 2024
- TEAMSTERS LOCAL 174 GEORGE CAVANO ANNUAL SCHOLARSHIP EIN 45-5363803 · last filed 990-EZ for 2025
- GLOBAL FUND FOR ASSISTANCE GREATER SEATTLE EIN 39-2442907 · last filed 990-N for 2025
- JOAN VANN MEMORIAL ENDOWMENT FUND EIN 91-1471633
- CREDIT UNIONS IN THE STATE OF WASHINGTON EIN 91-0219435 · last filed 990-N for 2025
All nonprofits in TUKWILA · Washington · Philanthropy, voluntarism and grantmaking foundations