Nonprofit · EIN 84-4624873
THE COLLABORATIVE PIANO INSTITUTE
Tax-exempt · ANN ARBOR, MI 48105
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $106,092 | $105,023 | $1,069 | $129,387 | $12,155 | $117,232 |
| December 31, 2024 | 990-EZ | $139,925 | $121,218 | $18,707 | $118,708 | $2,545 | $116,163 |
| December 31, 2023 | 990-EZ | $118,493 | $93,882 | $24,611 | $97,456 | $0 | $97,456 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $28,542
- Program service revenue
- $72,460
- Investment income
- $5,090
Expenses
- Compensation of officers, directors and key employees
- $29,200
- Professional fees and payments to contractors
- $74,560
- Occupancy
- $25,212
- Other expenses
- $5,251
- Program services (functional)
- $101,782
Balance sheet and other
- Total assets, start of year
- $118,708
- Total assets, end of year
- $129,387
- Total liabilities, end of year
- $12,155
- Net assets, end of year
- $117,232
- Cash, savings and investments
- $129,387
- Gross receipts
- $106,092
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 |
|---|---|---|---|
| ANA MARIA OTAMENDI | PRESIDENT | 10 | $15,000 |
| ELENA LACHEVA | EXECUTIVE VICE PRESIDENTTREASURER | 8 | $14,200 |
| ROXANNE CARGILL | DIRECTOR | 2 | $0 |
| WILLIAM HAASE | DIRECTOR | 2 | $0 |
| LUCILA HAASE | DIRECTOR | 2 | $0 |
| WYNNE MATTISON | DIRECTOR | 2 | $0 |
| GERRY AITKEN | DIRECTOR | 2 | $0 |
| PETER WESTON | DIRECTOR | 2 | $0 |
990-EZ for the year ended December 31, 2024: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ANA MARIA OTAMENDI | PRESIDENT | 10 | $9,500 |
| ELENA LACHEVA | EXECUTIVE VICE PRESIDENTTREASURER | 8 | $9,500 |
| ROXANNE CARGILL | DIRECTOR | 2 | $0 |
| WILLIAM HAASE | DIRECTOR | 2 | $0 |
| LUCILA HAASE | DIRECTOR | 2 | $0 |
| WYNNE MATTISON | DIRECTOR | 2 | $0 |
| GERRY AITKEN | DIRECTOR | 2 | $0 |
| PETER WESTON | DIRECTOR | 2 | $0 |
990-EZ for the year ended December 31, 2023: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ANA MARIA OTAMENDI | PRESIDENT | 10 | $0 |
| ELENA LACHEVA | EXECUTIVE VICE PRESIDENTTREASURER | 8 | $0 |
| ROXANNE CARGILL | DIRECTOR | 2 | $0 |
| WILLIAM HAASE | DIRECTOR | 2 | $0 |
| LUCILA HAASE | DIRECTOR | 2 | $0 |
| WYNNE MATTISON | DIRECTOR | 2 | $0 |
| GERRY AITKEN | DIRECTOR | 2 | $0 |
| PETER WESTON | DIRECTOR | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 1054 GREENHILLS DR, ANN ARBOR, MI 48105-2722
- In care of
- % ANA MARIA OTAMENDI
- Mailing address (990-N for 2020)
- 647 MAXIMILLIAN STREET, BATON ROUGE LA 708026433
- Principal officer (990-N for 2020)
- ANA MARIA OTAMENDI, 637 MAXIMILLIAN STREET, BATON ROUGE LA 708026433
- Signed the 990-EZ
- ANA MARIA OTAMENDI DMA, PRESIDENT
- Phone
- (832) 856-1403
- Return prepared by
- Layne R McDaniel CPA LLC
Mission
EDUCATIONAL
Program accomplishments
- SEE SCHEDULE OExpenses $101,782
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
- 84-4624873
- 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
- 2021
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Assets (IRS master file)
- $129,387
- Income (IRS master file)
- $106,092
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $106,092 | $105,023 | $129,387 | XML |
| 990-EZ | December 2024 | $139,925 | $121,218 | $118,708 | XML |
| 990-EZ | December 2023 | $118,493 | $93,882 | $97,456 | XML |
| 990-EZ | December 2022 | – | – | – | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-N for 2020 Officer: ANA MARIA OTAMENDI | December 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 84-4624873).
Questions about THE COLLABORATIVE PIANO INSTITUTE
- What is the EIN of THE COLLABORATIVE PIANO INSTITUTE?
- The employer identification number (EIN) of THE COLLABORATIVE PIANO INSTITUTE is 84-4624873.
- Is THE COLLABORATIVE PIANO INSTITUTE tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2021.
- Are donations to THE COLLABORATIVE PIANO INSTITUTE tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does THE COLLABORATIVE PIANO INSTITUTE 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 THE COLLABORATIVE PIANO INSTITUTE 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 THE COLLABORATIVE PIANO INSTITUTE last file with the IRS?
- The latest return in the IRS public files is the 990-EZ for the year ended December 2025.
- Who is the principal officer of THE COLLABORATIVE PIANO INSTITUTE?
- The 990-N for 2020 names ANA MARIA OTAMENDI.
- Who are the officers and directors of THE COLLABORATIVE PIANO INSTITUTE?
- The 990-EZ for the year ended December 31, 2025 lists 8 people; 2 received compensation from the organization, the highest $15,000 (ANA MARIA OTAMENDI, PRESIDENT).
- How much revenue does THE COLLABORATIVE PIANO INSTITUTE have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $106,092, expenses of $105,023 and total assets of $129,387 at year end.
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