Nonprofit · EIN 82-4087225
CAMBRIDGE MATH CIRCLE INC
Tax-exempt · CAMBRIDGE, MA 02138
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2024 | 990 | $399,548 | $466,893 | -$67,345 | $111,974 | $0 | $111,974 |
| December 31, 2023 | 990 | $393,215 | $294,630 | $98,585 | $179,319 | $0 | $179,319 |
Financial details: 990 for the year ended December 31, 2024
Revenue
- Contributions, gifts and grants
- $182,870
- of which government grants
- $20,000
- Program service revenue
- $216,678
- Investment income
- $0
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $122,918
- Other salaries and wages
- $109,260
- Salaries, compensation and benefits (total)
- $258,122
- Professional fundraising fees
- $0
- Accounting fees
- $6,500
- Occupancy
- $924
- Travel
- $1,295
- Program services (functional)
- $366,002
- Management and general (functional)
- $73,665
- Fundraising (functional)
- $27,226
Balance sheet and other
- Total assets, start of year
- $179,319
- Total assets, end of year
- $111,974
- Total liabilities, end of year
- $0
- Net assets, end of year
- $111,974
- Net assets without donor restrictions
- $111,974
- Gross receipts
- $399,548
- Employees
- 5
- Volunteers
- 10
- Year formed
- 2018
- State of legal domicile
- MA
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 for the year ended December 31, 2024, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Nataliya Yufa | President, Executive Director Trustee or director, Officer | 40 | $122,917 |
| Doug Marshall | Director, Secretary, Treasurer Trustee or director, Officer | 2 | $0 |
| Hari Prasad Thadakamalla | Director Trustee or director | 2 | $0 |
| Josh Greene | Director Trustee or director | 2 | $0 |
| Kim Bostic | Director Trustee or director | 2 | $0 |
| Fetiya Omer | Director Trustee or director | 2 | $0 |
990 for the year ended December 31, 2023: 5 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Nataliya Yufa | President, Executive Director Trustee or director, Officer | 40 | $98,500 |
| Mira Bernstein | Director, Secretary, Treasurer Trustee or director, Officer | 2 | $0 |
| Hari Prasad Thadakamalla | Director Trustee or director | 2 | $0 |
| Josh Greene | Director Trustee or director | 2 | $0 |
| Leandro Vetcher | Director Trustee or director | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 37 HIGH ST APT 2, CAMBRIDGE, MA 02138-4572
- In care of
- % NATALIYA YUFA
- Mailing address (990-N for 2019)
- 37 High St 2, Cambridge MA 02138
- Principal officer (990 for 2024)
- Nataliya Yufa, 37 High Street Apt 2, CAMBRIDGE, MA 02138
- Principal officer (990-N for 2019)
- Nataliya Yufa, 37 High St 2, Cambridge MA 02138
- Signed the 990
- Nataliya Yufa, President, Executive Director
- Phone
- (617) 454-7627
- Website
- www.cambridgemathcircle.org
- Return prepared by
- Sambo Onos & Company LLC
Mission
Enrichment mathematics education for K-8 students with an emphasis on outreach to groups underrepresented in STEM
Program accomplishments
- The Cambridge Math Circle conducted enrichment mathematics classes for elementary and middle school students, reaching 150-200 students per week for three 10-week sessions during the school year and a 3-week long summer camp. We also ran lunchtime sessions in Cambridge Public Schools and a free public math festival attended by about 150 students.Expenses $366,002
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 | Not on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 82-4087225
- 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
- 2018
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B20)
- Assets (IRS master file)
- $111,974
- Income (IRS master file)
- $399,548
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2024 | $399,548 | $466,893 | $111,974 | XML |
| 990 | December 2023 | $393,215 | $294,630 | $179,319 | XML |
| 990 | December 2022 | $236,988 | $184,496 | $80,734 | IRS |
| 990-EZ | December 2021 | – | – | – | IRS |
| 990-N for 2019 Officer: Nataliya Yufa | 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 82-4087225).
Questions about CAMBRIDGE MATH CIRCLE INC
- What is the EIN of CAMBRIDGE MATH CIRCLE INC?
- The employer identification number (EIN) of CAMBRIDGE MATH CIRCLE INC is 82-4087225.
- Is CAMBRIDGE MATH CIRCLE INC tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2018.
- Are donations to CAMBRIDGE MATH CIRCLE INC tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does CAMBRIDGE MATH CIRCLE INC 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 CAMBRIDGE MATH CIRCLE INC due?
- The return for tax year 2025 (the year ending December 31, 2025) is due May 15, 2026. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did CAMBRIDGE MATH CIRCLE INC last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2024.
- Who is the principal officer of CAMBRIDGE MATH CIRCLE INC?
- The 990 for the year ended December 31, 2024 names Nataliya Yufa.
- Who are the officers and directors of CAMBRIDGE MATH CIRCLE INC?
- The 990 for the year ended December 31, 2024 lists 6 people; 1 received compensation from the organization, the highest $122,917 (Nataliya Yufa, President, Executive Director).
- How much revenue does CAMBRIDGE MATH CIRCLE INC have?
- On its 990 for the year ended December 31, 2024 it reported revenue of $399,548, expenses of $466,893 and total assets of $111,974 at year end.
Other nonprofits in CAMBRIDGE
- PRESIDENT AND FELLOWS OF HARVARD COLLEGE EIN 04-2103580 · last filed 990-N for 2024
- MASSACHUSETTS INSTITUTE OF TECHNOLOGY EIN 04-2103594 · last filed 990 for 2025
- HULT INTERNATIONAL BUSINESS SCHOOL INC EIN 04-3348440 · last filed 990 for 2025
- BUCKINGHAM BROWNE AND NICHOLS SCHOOL EIN 04-2103751 · last filed 990 for 2025
- TRUSTEES FOR HARVARD UNIVERSITY EIN 53-0199180 · last filed 990 for 2025
- SHADY HILL SCHOOL EIN 04-2103628 · last filed 990 for 2025
- LYCEE INTERNATIONAL DE BOSTON INTERNATIONAL SCHOOL OF BOSTON INC EIN 04-2385120 · last filed 990 for 2025
- AXIM COLLABORATIVE INC EIN 46-0807740 · last filed 990 for 2025