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Nonprofit · EIN 99-4329308

DESIGN BUILD FLY AT UW

Tax-exempt · SEATTLE, WA 98195

Address and contacts

Address (IRS master file)
4001 E STEVENS WAY NE, SEATTLE, WA 98195-0001
Mailing address (990-N for 2025)
University of Washington Box 352400, Seattle WA 98195
Principal officer (990-N for 2025)
Eleanor Kniffen, 5605 Hillside Court, Edina MN 55439

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 May, so each return is due on the 15th day of the 5th month after that.

Tax yearYear endedDueIRS public records
2025May 31, 2026October 15, 2026990-N on file
2024May 31, 2025October 15, 2025990-N on file
2023May 31, 2024October 15, 2024Check at the IRS

IRS record

EIN
99-4329308
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
2024
Accounting year ends
May
Files
Form 990-N (e-Postcard)

Filing history

FormYear endedRevenueExpensesAssetsReturn
990-N for 2025
Officer: Eleanor Kniffen
May 31, 2026≤ $50,000 receipts––e-Postcard
990-N for 2024
Officer: Eleanor Kniffen
May 31, 2025≤ $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 99-4329308).

Questions about DESIGN BUILD FLY AT UW

What is the EIN of DESIGN BUILD FLY AT UW?
The employer identification number (EIN) of DESIGN BUILD FLY AT UW is 99-4329308.
Is DESIGN BUILD FLY AT UW tax-exempt?
Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2024.
Are donations to DESIGN BUILD FLY AT UW tax-deductible?
Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
Which annual return does DESIGN BUILD FLY AT UW file?
Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
When is the next return of DESIGN BUILD FLY AT UW due?
The return for tax year 2026 (the year ending May 31, 2027) is due October 15, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
When did DESIGN BUILD FLY AT UW last file with the IRS?
The latest return in the IRS public files is the 990-N for 2025 for the year ended May 31, 2026.
Who is the principal officer of DESIGN BUILD FLY AT UW?
The 990-N for 2025 names Eleanor Kniffen.

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