Nonprofit · EIN 23-7425589
ISSAQUAH HISTORY MUSEUMS
Also known as ISSAQUAH HISTORICAL SOCIETY
Tax-exempt · ISSAQUAH, WA 98027
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $268,742 | $258,664 | $10,078 | $435,286 | $13,130 | $422,156 |
| December 31, 2024 | 990-EZ | $178,561 | $208,545 | -$29,984 | $398,654 | $11,437 | $387,217 |
| December 31, 2023 | 990-EZ | $153,806 | $199,513 | -$45,707 | $404,231 | $16,246 | $387,985 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $224,309
- of which government grants
- $189,300
- Program service revenue
- $5,566
- Investment income
- $21,402
- Net rental income
- $16,319
- Net gain from sales of assets
- $1,825
- Net income from sales of inventory
- $1,146
- Other revenue
- $17,465
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $70,270
- Other salaries and wages
- $129,729
- Salaries, compensation and benefits (total)
- $218,203
- Professional fundraising fees
- $0
- Accounting fees
- $6,994
- Occupancy
- $8,969
- Depreciation
- $1,345
- Program services (functional)
- $186,844
- Management and general (functional)
- $68,749
- Fundraising (functional)
- $3,071
Balance sheet and other
- Total assets, start of year
- $398,654
- Total assets, end of year
- $435,286
- Total liabilities, end of year
- $13,130
- Net assets, end of year
- $422,156
- Land, buildings and equipment
- $23,958
- Publicly traded securities
- $306,399
- Net assets without donor restrictions
- $422,156
- Gross receipts
- $269,499
- Employees
- 4
- Volunteers
- 9
- Year formed
- 1972
- State of legal domicile
- WA
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 |
|---|---|---|---|
| Paul Winterstein | Executive Director Officer | 41 | $70,270 |
| Annette Brown-Foster | Board Member Trustee or director | 1 | $0 |
| Linda Henderson | Board Member Trustee or director | 1 | $0 |
| Cathy Jones | Board Member Trustee or director | 1 | $0 |
| Emerson-Jane Jones | Treasurer Trustee or director, Officer | 2 | $0 |
| Cara Kovac | Secretary Trustee or director, Officer | 2 | $0 |
| Emily Lee | President Trustee or director, Officer | 2 | $0 |
| Hayat Nierenberg | Board Member Trustee or director | 1 | $0 |
| Heidi Seligman | Vice President Trustee or director, Officer | 2 | $0 |
| Nick Weir-Williams | Board Member Trustee or director | 1 | $0 |
990-EZ for the year ended December 31, 2024: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Paul Winterstein | Executive Director | 40 | $70,213 |
| Emily Boersma | Board Member | 2 | $0 |
| Juliana da Cruz | Board Member | 2 | $0 |
| Linda Henderson | Board Member | 2 | $0 |
| Cara Kovac | Board Member | 2 | $0 |
| Mark Laurance | Board Member till June | 5 | $0 |
| Emily Lee | Board Member | 3 | $0 |
| Heidi Seligman | Board Member | 3 | $0 |
990-EZ for the year ended December 31, 2023: 10 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Paul Winterstein | Executive Director from April | 40 | $48,620 |
| Mark Laurance | President | 5 | $0 |
| Heidi Seligman | Vice President | 2 | $0 |
| Emily Lee | Treasurer | 3 | $0 |
| Cara Kovac | Secretary | 2 | $0 |
| Emily Boersma | Board Member | 2 | $0 |
| Kaitlin Brookshire | Board Member | 3 | $0 |
| Juliana da Cruz | Board Member | 2 | $0 |
| Linda Henderson | Board Member | 2 | $0 |
| Greg Spranger | Board Member till 1031 | 2 | $0 |
Address and contacts
- Address (IRS master file)
- PO BOX 695, ISSAQUAH, WA 98027-0026
- In care of
- % PAUL WINTERSTEIN
- Principal officer (990 for 2025)
- Emily Lee, PO Box 695, Issaquah, WA 98027
- Signed the 990
- PAUL WINTERSTEIN, Executive Director
- Phone
- (425) 392-3500
- Website
- https://issaquahhistory.org
- Return prepared by
- Landon Accounting
Mission
To discover, preserve, and share history and heritiage of Issaquah and the surrounding area.
Program accomplishments
- See Schedule OExpenses $186,844 · revenue $5,566
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-EZ on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990-EZ on file |
IRS record
- EIN
- 23-7425589
- 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
- 1975
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $435,286
- Income (IRS master file)
- $269,499
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $268,742 | $258,664 | $435,286 | IRS |
| 990-EZ | December 2024 | $178,561 | $208,545 | $398,654 | XML |
| 990-EZ | December 2023 | $153,806 | $199,513 | $404,231 | XML |
| 990 | December 2022 | $203,437 | $155,710 | $409,791 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2017 | – | – | – | 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 23-7425589).
Questions about ISSAQUAH HISTORY MUSEUMS
- What is the EIN of ISSAQUAH HISTORY MUSEUMS?
- The employer identification number (EIN) of ISSAQUAH HISTORY MUSEUMS is 23-7425589.
- Is ISSAQUAH HISTORY MUSEUMS tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1975.
- Are donations to ISSAQUAH HISTORY MUSEUMS tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does ISSAQUAH HISTORY MUSEUMS 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 ISSAQUAH HISTORY MUSEUMS 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 ISSAQUAH HISTORY MUSEUMS 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 ISSAQUAH HISTORY MUSEUMS?
- The 990 for the year ended December 31, 2025 names Emily Lee.
- Who are the officers and directors of ISSAQUAH HISTORY MUSEUMS?
- The 990 for the year ended December 31, 2025 lists 10 people; 1 received compensation from the organization, the highest $70,270 (Paul Winterstein, Executive Director).
- How much revenue does ISSAQUAH HISTORY MUSEUMS have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $268,742, expenses of $258,664 and total assets of $435,286 at year end.
Other nonprofits in ISSAQUAH
- KONZEN FAMILY FOUNDATION EIN 85-3910161 · last filed 990-PF for 2025
- VILLAGE THEATRE EIN 91-1077130 · last filed 990 for 2025
- CHRIST CARES FOR KIDS FOUNDATION EIN 38-3505507 · last filed 990-PF for 2026
- COSTCO WHOLESALE EMPLOYEE CLUB EIN 27-0083331 · last filed 990 for 2024
- KIDVANTAGE EIN 91-1617032 · last filed 990 for 2024
- SUMMIT CLASSICAL CHRISTIAN SCHOOL EIN 20-5735530 · last filed 990 for 2025
- WASHINGTON TECHNOLOGY INDUSTRY ASSOCIATION EIN 91-1427013 · last filed 990 for 2024
- ISSAQUAH FOOD & CLOTHING BANK EIN 91-1245499 · last filed 990 for 2024