Nonprofit · EIN 91-1658589
NORTHWEST ECOBUILDING GUILD
Tax-exempt · SEATTLE, WA 98136
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $68,597 | $75,446 | -$6,849 | $6,629 | $3,093 | $3,536 |
| December 31, 2024 | 990-EZ | $54,545 | $66,402 | -$11,857 | $12,677 | $2,292 | $10,385 |
| December 31, 2023 | 990-EZ | $62,782 | $83,437 | -$20,655 | $23,347 | $1,105 | $22,242 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $16,492
- Program service revenue
- $52,105
Expenses
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $27,782
- Professional fees and payments to contractors
- $8,224
- Printing, publications and postage
- $821
- Other expenses
- $38,619
- Program services (functional)
- $75,447
Balance sheet and other
- Total assets, start of year
- $12,677
- Total assets, end of year
- $6,629
- Total liabilities, end of year
- $3,093
- Net assets, end of year
- $3,536
- Cash, savings and investments
- $6,629
- Gross receipts
- $68,597
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-EZ for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LAURA ELFLINE | Director | 3 | $0 |
| MICHAEL NIALL | President | 4 | $0 |
| HELEN HARRISON | Director | 6 | $0 |
| GEORGE OSTROW | Treasurer | 6 | $0 |
| GRACE HUANG | Director | 3 | $0 |
| HOWARD THURSTON | Secretary | 2 | $0 |
| ELLY-HIEN TRINH | Director | 2 | $0 |
| AARON SAUERHOFF | Director | 1 | $0 |
990-EZ for the year ended December 31, 2024: 10 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LAURA ELFLINE | Director | 3 | $0 |
| MICHAEL NIALL | President | 4 | $0 |
| HELEN HARRISON | Vice President | 6 | $0 |
| GEORGE OSTROW | Treasurer | 4 | $0 |
| GRACE HUANG | Director | 3 | $0 |
| HOWARD THURSTON | Secretary | 2 | $0 |
| ELLY-HIEN TRINH | Director | 2 | $0 |
| SONJA O'CLAIRE | Director | 4 | $0 |
| DOM DAVIS | Director | 0.5 | $0 |
| AARON SAUERHOFF | Director | 1 | $0 |
990-EZ for the year ended December 31, 2023: 10 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| LAURA ELFLINE | Director | 3 | $0 |
| MICHAEL NIALL | President | 4 | $0 |
| HELEN HARRISON | Vice President | 6 | $0 |
| GEORGE OSTROW | Treasurer | 4 | $0 |
| GRACE HUANG | Director | 3 | $0 |
| HOWARD THURSTON | Secretary | 2 | $0 |
| ELLY-HIEN TRINH | Director | 2 | $0 |
| SONJA O'CLAIRE | Director | 4 | $0 |
| DOM DAVIS | Director | 0.5 | $0 |
| AARON SAUERHOFF | Director | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 6523 CALIFORNIA AVE SW 286, SEATTLE, WA 98136-1833
- Signed the 990-EZ
- GEORGE H OSTROW, Treasurer
- Phone
- (360) 995-1955
- Website
- WWW.ECOBUILDING.ORG
- Return prepared by
- Penelope S Michael MBA
Mission
SUSTAINABLE BUILDING EDUCATION
Program accomplishments
- EDUCATIONAL WORKSHOPS, CONFERENCES, TOURS, MEMBERSHIP RETREAT, GREEN PAGES TO SUPPORT THROUGH EDUCATION THE PROGRESSIVE WORK OF OUR MEMBERS IN THE PACIFIC NORTHWEST AND TO BUILDERS, DESIGNERS, AND CONSTRUCTION RELATED PROFESSIONALS, AND GENERALLY INTERESTED PUBLIC IN ORDER TO IMPROVE THE RELATIONSHIP BETWEEN OUR COMMUNITIES AND OUR BUILT ENVIRONMENT AND POSITIVELY AFFECT CLIMATE CHANGE.Expenses $75,447
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-EZ 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
- 91-1658589
- 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
- 1996
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Environment (C033)
- Assets (IRS master file)
- $6,629
- Income (IRS master file)
- $68,597
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $68,597 | $75,446 | $6,629 | IRS |
| 990-EZ | December 2024 | $54,545 | $66,402 | $12,677 | IRS |
| 990-EZ | December 2023 | $62,782 | $83,437 | $23,347 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-EZ | December 2020 | – | – | – | IRS |
| 990 | 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 91-1658589).
Questions about NORTHWEST ECOBUILDING GUILD
- What is the EIN of NORTHWEST ECOBUILDING GUILD?
- The employer identification number (EIN) of NORTHWEST ECOBUILDING GUILD is 91-1658589.
- Is NORTHWEST ECOBUILDING GUILD tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1996.
- Are donations to NORTHWEST ECOBUILDING GUILD tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does NORTHWEST ECOBUILDING GUILD 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 NORTHWEST ECOBUILDING GUILD 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 NORTHWEST ECOBUILDING GUILD last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who are the officers and directors of NORTHWEST ECOBUILDING GUILD?
- The 990-EZ for the year ended December 31, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does NORTHWEST ECOBUILDING GUILD have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $68,597, expenses of $75,446 and total assets of $6,629 at year end.
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