Nonprofit · EIN 45-5139751
TIDEMARK INSTITUTE INC
Tax-exempt · DAMARISCOTTA, ME 04543
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $1,791 | $112 | $1,679 | $53,049 | – | $53,049 |
| December 31, 2024 | 990-EZ | $2,058 | – | – | $51,370 | – | $51,370 |
| December 31, 2023 | 990-EZ | $107,797 | $239,609 | -$131,812 | $49,312 | $0 | $49,312 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $0
- Investment income
- $1,791
Expenses
- Compensation of officers, directors and key employees
- $0
- Other expenses
- $112
Balance sheet and other
- Total assets, start of year
- $51,370
- Total assets, end of year
- $53,049
- Total liabilities, end of year
- –
- Net assets, end of year
- $53,049
- Cash, savings and investments
- $53,049
- Gross receipts
- $1,791
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 |
|---|---|---|---|
| Constance Jean Moon | Pres/Treas/Sec/Dir | 0 | $0 |
| Nancy Harris Frohlich | Director | 0 | $0 |
| Suzanne Wilson | Director | 0 | $0 |
| James Galdos | Director | 0 | $0 |
990-EZ for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Constance Jean Moon | Pres/Treas/Sec/Dir | 0 | $0 |
| Nancy Harris Frohlich | Director | 0 | $0 |
| Suzanne Wilson | Director | 0 | $0 |
| James Galdos | Director | 0 | $0 |
990-EZ for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Constance Jean Moon | Pres/Treas/Sec/Dir | 20 | $0 |
| Nancy Harris Frohlich | Director | 2 | $0 |
| Suzanne Wilson | Director | 2 | $0 |
| James Galdos | Director | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 73 BRISTOL RD, DAMARISCOTTA, ME 04543-4001
- In care of
- % JEAN MOON
- Mailing address (990-N for 2014)
- 73 Bristol Road, Damariscotta ME 04543
- Principal officer (990-N for 2014)
- CONSTANCE JEAN MOON, 73 Bristol Road, Damariscotta ME 045434001
- Signed the 990-EZ
- Constance Jean Moon, President
- Phone
- (207) 832-1866
- Return prepared by
- Charles J DiMatteo JrCPA
Mission
The organization is established to promote educational & charitable purposes by operating an educational & scientific institute to conduct research on education and learning
Program accomplishments
- Educational and scientific research
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 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
- 45-5139751
- 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
- 2013
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Education (B05)
- Assets (IRS master file)
- $53,049
- Income (IRS master file)
- $1,791
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $1,791 | $112 | $53,049 | XML |
| 990-EZ | December 2024 | $2,058 | – | $51,370 | IRS |
| 990-EZ | December 2023 | $107,797 | $239,609 | $49,312 | IRS |
| 990 | December 2022 | $246,268 | $303,896 | $201,124 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
| 990-N for 2014 Officer: CONSTANCE JEAN MOON | December 31, 2014 | ≤ $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 45-5139751).
Questions about TIDEMARK INSTITUTE INC
- What is the EIN of TIDEMARK INSTITUTE INC?
- The employer identification number (EIN) of TIDEMARK INSTITUTE INC is 45-5139751.
- Is TIDEMARK INSTITUTE INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2013.
- Are donations to TIDEMARK INSTITUTE INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does TIDEMARK INSTITUTE INC file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of TIDEMARK INSTITUTE INC 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 TIDEMARK INSTITUTE INC 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 TIDEMARK INSTITUTE INC?
- The 990-N for 2014 names CONSTANCE JEAN MOON.
- Who are the officers and directors of TIDEMARK INSTITUTE INC?
- The 990-EZ for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does TIDEMARK INSTITUTE INC have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $1,791, expenses of $112 and total assets of $53,049 at year end.
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