Nonprofit · EIN 23-7303173
CHAMBER MUSIC SOCIETY OF OREGON
Tax-exempt · PORTLAND, OR 97208
Address and contacts
- Address (IRS master file)
- PO BOX 2911, PORTLAND, OR 97208-2911
- Mailing address (990-N for 2024)
- PO Box 2911, Portland OR 97208
- Principal officer (990-N for 2024)
- Karen Karger, 932 NW Summit Avenue, Portland OR 97210
- Website
- oregonsinfonietta.org
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 June, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | June 30, 2026 | November 16, 2026 | Not due yet |
| 2024 | June 30, 2025 | November 17, 2025 | 990-N on file |
| 2023 | June 30, 2024 | November 15, 2024 | 990-N on file |
IRS record
- EIN
- 23-7303173
- 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
- June
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Arts, culture and humanities (A68Z)
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-N for 2024 Officer: Karen Karger | June 30, 2025 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2023 Officer: Mary Wawrukiewicz | June 30, 2024 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 Officer: Karen Karger | June 30, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2020 Officer: Mary Wawrukiewicz | June 30, 2021 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: Mary Wawrukiewicz | June 30, 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 23-7303173).
Questions about CHAMBER MUSIC SOCIETY OF OREGON
- What is the EIN of CHAMBER MUSIC SOCIETY OF OREGON?
- The employer identification number (EIN) of CHAMBER MUSIC SOCIETY OF OREGON is 23-7303173.
- Is CHAMBER MUSIC SOCIETY OF OREGON tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 1975.
- Are donations to CHAMBER MUSIC SOCIETY OF OREGON tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does CHAMBER MUSIC SOCIETY OF OREGON file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of CHAMBER MUSIC SOCIETY OF OREGON due?
- The return for tax year 2025 (the year ending June 30, 2026) is due November 16, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did CHAMBER MUSIC SOCIETY OF OREGON last file with the IRS?
- The latest return in the IRS public files is the 990-N for 2024 for the year ended June 30, 2025.
- Who is the principal officer of CHAMBER MUSIC SOCIETY OF OREGON?
- The 990-N for 2024 names Karen Karger.
Other nonprofits in PORTLAND
- OREGON PUBLIC BROADCASTING EIN 93-0814638 · last filed 990 for 2025
- PORTLAND ART MUSEUM EIN 93-0391604 · last filed 990 for 2025
- OREGON MUSEUM OF SCIENCE AND INDUSTRY EIN 93-0402877 · last filed 990 for 2025
- OREGON SYMPHONY ASSOCIATION EIN 93-0446527 · last filed 990 for 2025
- FRENCH INTERNATIONAL SCHOOL OF OREGON EIN 93-0738797 · last filed 990 for 2025
- OREGON HISTORICAL SOCIETY EIN 93-0391599 · last filed 990 for 2025
- OREGON BALLET THEATRE EIN 93-1009305 · last filed 990 for 2025
- ALL CLASSICAL PUBLIC MEDIA INC EIN 93-1042868 · last filed 990 for 2025
All nonprofits in PORTLAND · Oregon · Arts, culture and humanities