Nonprofit · EIN 91-1292635
SOUTH KING COUNTY GENEALOGICAL SOCIETY
Tax-exempt · SEATTLE, WA 98116
Address and contacts
- Address (IRS master file)
- 4822 SW NIESZ CT, SEATTLE, WA 98116-2143
- Mailing address (990-N for 2025)
- 4822 Southwest Niesz Court, Seattle WA 98116
- Principal officer (990-N for 2025)
- Michele Mattoon, 4822 Southwest Niesz Court, Seattle WA 98116
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 year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | May 31, 2026 | October 15, 2026 | 990-N on file |
| 2024 | May 31, 2025 | October 15, 2025 | 990-N on file |
| 2023 | May 31, 2024 | October 15, 2024 | 990-N on file |
IRS record
- EIN
- 91-1292635
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (509(a)(2))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 1986
- Accounting year ends
- May
- Files
- Form 990-N (e-Postcard)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2025 Officer: Michele Mattoon | May 31, 2026 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2024 Officer: Michele Mattoon | May 31, 2025 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2023 Officer: Michele Mattoon | May 31, 2024 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 Officer: Valorie Zimmerman | May 31, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: Barbara Mattoon | May 31, 2020 | ≤ $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 91-1292635).
Questions about SOUTH KING COUNTY GENEALOGICAL SOCIETY
- What is the EIN of SOUTH KING COUNTY GENEALOGICAL SOCIETY?
- The employer identification number (EIN) of SOUTH KING COUNTY GENEALOGICAL SOCIETY is 91-1292635.
- Is SOUTH KING COUNTY GENEALOGICAL SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1986.
- Are donations to SOUTH KING COUNTY GENEALOGICAL SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does SOUTH KING COUNTY GENEALOGICAL SOCIETY file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of SOUTH KING COUNTY GENEALOGICAL SOCIETY 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 SOUTH KING COUNTY GENEALOGICAL SOCIETY 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 SOUTH KING COUNTY GENEALOGICAL SOCIETY?
- The 990-N for 2025 names Michele Mattoon.
Other nonprofits in SEATTLE
- GATES FOUNDATION EIN 56-2618866 · last filed 990-PF for 2024
- PROVIDENCE HEALTH & SERVICES OREGON EIN 51-0216587 · last filed 990 for 2024
- FUND FOR SCIENCE AND TECHNOLOGY EIN 92-2010769 · last filed 990-PF for 2025
- SEATTLE CHILDRENS HOSPITAL EIN 91-0564748 · last filed 990 for 2025
- FRED HUTCHINSON CANCER CENTER EIN 91-1935159 · last filed 990 for 2025
- PROVIDENCE HEALTH SYSTEM-SOUTHERN CALIFORNIA EIN 51-0216589 · last filed 990 for 2024
- DELTA DENTAL OF WASHINGTON EIN 91-0621480 · last filed 990 for 2024
- CHP OF WASHINGTON EIN 91-1729710 · last filed 990 for 2024