Nonprofit · EIN 52-1542579
SIGMA DELTA TAU SOCIETY
Also known as GAMMA DELTA CHAPTER
Tax-exempt · WASHINGTON, DC 20016
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990-EZ | $72,338 | $77,594 | -$5,256 | $16,923 | $0 | $16,923 |
| December 31, 2024 | 990-EZ | $72,007 | $67,758 | $4,249 | $22,179 | $0 | $22,179 |
| December 31, 2023 | 990-EZ | $57,335 | $57,025 | $310 | $17,930 | $0 | $17,930 |
Financial details: 990-EZ for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $16,480
- Membership dues
- $57,976
- Program service revenue
- $0
- Investment income
- $5
- Net income from fundraising events
- -$2,123
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $38,452
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fees and payments to contractors
- $2,045
- Other expenses
- $37,097
Balance sheet and other
- Total assets, start of year
- $22,179
- Total assets, end of year
- $16,923
- Total liabilities, end of year
- $0
- Net assets, end of year
- $16,923
- Cash, savings and investments
- $16,923
- Gross receipts
- $74,461
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 |
|---|---|---|---|
| Sofia Borin | President | 15 | $0 |
| Nora Keith | VP of Finance | 8 | $0 |
| Ava Ramsdale | VP of Membership Recruitment | 10 | $0 |
| Maria Agostini | VP of Membership Experience | 5 | $0 |
| Sophia Ayala | VP of Philanthropy and Service | 5 | $0 |
| Yasmine Mirhaji | Director Academic Development | 5 | $0 |
| Olivia Flatt | Director Risk Reduction | 5 | $0 |
| Kate Wattenberg | VP of Pahnellenic and External Affairs | 5 | $0 |
990-EZ for the year ended December 31, 2024: 18 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Alexa Tabin | President | 15 | $0 |
| Kate Zdunczyk | VP of Finance | 10 | $0 |
| Sofia Borin | VP of Membership Recruitment | 5 | $0 |
| Ali Baron | VP of Membership Experience | 5 | $0 |
| Alanna Conley | VP of Philanthropy and Service | 5 | $0 |
| Yasmine Mirhaji | Director of History and Rituals | 5 | $0 |
| Em Marsh | Director Senior Experience | 5 | $0 |
| Alana Gordon | Director Academic Development | 5 | $0 |
| Emily Rifkin and Nora Keith | Assistant New Member Educator | 5 | $0 |
| Ashleigh Silvestro | Director Event Planning | 5 | $0 |
| Abby Froehlich | Director Sisterhood | 5 | $0 |
| Avery Zaber and Ave Ramsdale | Assistant Membership Recruitments | 5 | $0 |
| Zoe Vogelsang | Director Marketing and Social Media | 5 | $0 |
| Audrey Ernst | Director External Philanthropy | 5 | $0 |
| Kate Wattenberg | Director Risk Reduction | 5 | $0 |
| Sara Greenberg | Director Health and Wellness | 5 | $0 |
| Carolyn King | Director Alumnae and Abroad | 5 | $0 |
| Mia Stewart | VP Diversity, Equity, and Inclusion | 5 | $0 |
990-EZ for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Alexa Tabin | President | 15 | $0 |
| Kate Zdunczyk | VP of Finance | 5 | $0 |
| Sofia Borin | VP of Membership Recruitment | 3 | $0 |
| Ali Baron | VP of Membership Experience | 3 | $0 |
| Alanna Conley | VP of Philanthropy and Service | 3 | $0 |
Address and contacts
- Address (IRS master file)
- 3410 38TH NW APT 8422, WASHINGTON, DC 20016-3031
- In care of
- % MADDIE DRUCKER
- Mailing address (990-N for 2022)
- 4400 Massachusetts Avenue NW, Washington DC 20016
- Principal officer (990-N for 2022)
- Guinevere Pijor, 4400 Massachusetts Avenue NW, Washington DC 20016
- Signed the 990-EZ
- Madeline Drucker, VP of Finance
- Phone
- (317) 846-7747
- Website
- https://sigmadeltatau.org
Mission
Social Club - Sorority: 76 Members.
Program accomplishments
- Social Events/Gatherings
- Member Education and Enrichment
- Community Service and Philanthropy
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
- 52-1542579
- Tax-exempt status
- 501(c)(7): Social or recreational club
- Donations deductible
- No
- Exempt since
- 1948
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Group exemption
- 1026: SIGMA DELTA TAU SOCIETY
- Assets (IRS master file)
- $16,923
- Income (IRS master file)
- $74,461
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990-EZ | December 2025 | $72,338 | $77,594 | $16,923 | IRS |
| 990-EZ | December 2024 | $72,007 | $67,758 | $22,179 | XML |
| 990-EZ | December 2023 | $57,335 | $57,025 | $17,930 | XML |
| 990-N for 2022 Officer: Guinevere Pijor | December 31, 2022 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2021 Officer: Barbara Kaminska | December 31, 2021 | ≤ $50,000 receipts | – | – | e-Postcard |
| 990-N for 2019 Officer: Mikayla Harf | December 31, 2019 | ≤ $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 52-1542579).
Questions about SIGMA DELTA TAU SOCIETY
- What is the EIN of SIGMA DELTA TAU SOCIETY?
- The employer identification number (EIN) of SIGMA DELTA TAU SOCIETY is 52-1542579.
- Is SIGMA DELTA TAU SOCIETY tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(7) since 1948.
- Are donations to SIGMA DELTA TAU SOCIETY tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does SIGMA DELTA TAU 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 SIGMA DELTA TAU 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 SIGMA DELTA TAU 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 is the principal officer of SIGMA DELTA TAU SOCIETY?
- The 990-N for 2022 names Guinevere Pijor.
- Who are the officers and directors of SIGMA DELTA TAU SOCIETY?
- The 990-EZ for the year ended December 31, 2025 lists 8 people; 0 received compensation from the organization.
- How much revenue does SIGMA DELTA TAU SOCIETY have?
- On its 990-EZ for the year ended December 31, 2025 it reported revenue of $72,338, expenses of $77,594 and total assets of $16,923 at year end.
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