Nonprofit · EIN 81-1389847
TREE-RING SOCIETY
Tax-exempt · LOVELAND, CO 80537
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $77,783 | $57,572 | $20,211 | $88,115 | – | $88,115 |
| December 31, 2024 | 990-EZ | $77,174 | $60,571 | $16,603 | $63,438 | – | $63,022 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Membership dues
- $10,081
- Other revenue
- $67,702
Expenses
- Compensation of officers, directors and key employees
- $0
- Professional fees and payments to contractors
- $6,396
- Printing, publications and postage
- $7,424
- Other expenses
- $43,752
- Program services (functional)
- $45,405
Balance sheet and other
- Total assets, start of year
- $67,904
- Total assets, end of year
- $88,115
- Total liabilities, end of year
- –
- Net assets, end of year
- $88,115
- Cash, savings and investments
- $88,115
- Gross receipts
- $77,783
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 |
|---|---|---|---|
| Jodi Axelson | President | 3 | $0 |
| Grant Harley | VictoPresident | 0.5 | $0 |
| Adam Csank | Treasurer | 2 | $0 |
| Elaine Sutherland | Secretary | 1 | $0 |
| Nicole Zampieri | Diversity, Equity and Inclusion Officer | 2 | $0 |
| Steve Leavitt | Editor | 4 | $0 |
| Marthie Kemp | Student Representative | 0.5 | $0 |
990-EZ for the year ended December 31, 2024: 8 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Jodi Axelson | President | 2 | $0 |
| Grant Harley | VictoPresident | 1 | $0 |
| Adam Csank | Treasurer | 1 | $0 |
| Elaine Sutherland | Secretary | 1 | $0 |
| Nicole Zampieri | Diversity, Equity and Inclusion Officer | 2 | $0 |
| Steve Leavitt | Editor | 4 | $0 |
| Joe Buck | Communications Officer | 2 | $0 |
| Marthie Kemp | Student Representative | 1 | $0 |
Address and contacts
- Address (IRS master file)
- 3021 ZODIAC CT, LOVELAND, CO 80537-6646
- Mailing address (990-N for 2023)
- 3021 Zodiac Court, LOVELAND CO 80537
- Signed the 990-EZ
- Adam Csank, Treasurer
- Phone
- (520) 661-8590
- Website
- www.treeringsociety.org
Mission
The Tree-Ring Society's purpose is to promote and support the science of Dendrochronology
Program accomplishments
- The Tree-Ring Society offers financial support to conferences such as African Field School, to promote the learning and education in the field of Dendrochronology. In 2025, the Tree-Ring Society gave a $2,000 support to hold the conference, plus award plaques were created for people who excelled in the field, $2,425.Expenses $4,425
- The Tree-Ring Society publishes a bi-annual journal, Tree-Ring Research in which valuable articles serve as education and learning opportunities to support the field of tree-ring dating (dendrochronology). This journal is available as part of being a member of the Tree-Ring Society with more than 200 members as well as access through institutions and databases to thousands of people.Expenses $7,424
- The Tree-Ring Society hold an annual week-long field school in varying different locations in which students and scientists participate in a variety of lectures, labs and field opportunities to learn and expand their knowledge in the field of Dendrochronology. It is a hands-on education which provides lodging, transportation, food, all education materials and equipment to use during the school. This school has approx.33 people in attendance and is ongoingExpenses $33,556
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-N on file |
IRS record
- EIN
- 81-1389847
- 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
- 2016
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Science and technology (U03)
- Assets (IRS master file)
- $88,115
- Income (IRS master file)
- $77,783
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $77,783 | $57,572 | $88,115 | IRS |
| 990-EZ | December 2024 | $77,174 | $60,571 | $63,438 | XML |
| 990-N for 2023 | December 31, 2023 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2022 | December 31, 2022 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2020 Officer: Loretta Wilson | December 31, 2020 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2018 Officer: Elaine Sutherland | December 31, 2018 | ≤ $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 81-1389847).
Questions about TREE-RING SOCIETY
- What is the EIN of TREE-RING SOCIETY?
- The employer identification number (EIN) of TREE-RING SOCIETY is 81-1389847.
- Is TREE-RING SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2016.
- Are donations to TREE-RING SOCIETY tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does TREE-RING SOCIETY 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 TREE-RING SOCIETY 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 TREE-RING SOCIETY 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 TREE-RING SOCIETY?
- The 990-EZ for the year ended December 31, 2025 lists 7 people; 0 received compensation from the organization.
- How much revenue does TREE-RING SOCIETY have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $77,783, expenses of $57,572 and total assets of $88,115 at year end.
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