Nonprofit · EIN 45-4718477
MATHACTION
Tax-exempt · OAKLAND, CA 94602
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $18,078 | $6,383 | $11,695 | $39,869 | -$1,633 | $41,502 |
| December 31, 2024 | 990 | $24,250 | $42,714 | -$18,464 | $14,830 | -$1,652 | $16,482 |
| December 31, 2023 | 990 | $34,028 | $43,456 | -$9,428 | $34,811 | -$135 | $34,946 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $7,578
- Program service revenue
- $10,500
- Investment income
- $0
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Other salaries and wages
- $3,025
- Salaries, compensation and benefits (total)
- $3,025
- Professional fundraising fees
- $0
- Program services (functional)
- $5,525
- Management and general (functional)
- $858
Balance sheet and other
- Total assets, start of year
- $14,830
- Total assets, end of year
- $39,869
- Total liabilities, end of year
- -$1,633
- Net assets, end of year
- $41,502
- Net assets without donor restrictions
- $41,502
- Gross receipts
- $18,078
- Employees
- 0
- Volunteers
- 4
- Year formed
- 2012
- State of legal domicile
- CA
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, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TAMAR POSNER | PRESIDENT Officer | 2 | $0 |
| SARITA EVANS | SECRETARY Officer | 2 | $0 |
| JENNIFER BLOOM | TREASURER Officer | 2 | $0 |
| JAD NASRALLAH | DIRECTOR Officer | 2 | $0 |
990 for the year ended December 31, 2024: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TAMAR POSNER | PRESIDENT Officer | 2 | $0 |
| SARITA EVANS | SECRETARY Officer | 2 | $0 |
| JENNIFER BLOOM | TREASURER Officer | 2 | $0 |
| JAD NASRALLAH | DIRECTOR Officer | 2 | $0 |
990 for the year ended December 31, 2023: 4 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| TAMAR POSNER | PRESIDENT Officer | 2 | $0 |
| SARITA EVANS | SECRETARY Officer | 2 | $0 |
| JENNIFER BLOOM | TREASURER Officer | 2 | $0 |
| JAD NASRALLAH | DIRECTOR Officer | 2 | $0 |
Address and contacts
- Address (IRS master file)
- 4118 LYMAN RD, OAKLAND, CA 94602-1810
- In care of
- % TAMAR POSNER
- Mailing address (990-N for 2019)
- 2323 Broadway, Oakland CA 94612
- Principal officer (990 for 2025)
- TAMAR POSNER, 4118 LYMAN ROAD, Oakland, CA 94602
- Principal officer (990-N for 2019)
- Tamar Posner, 4118 Lyman Road, Oakland CA 94602
- Signed the 990
- KAYLA KIRSCH, PRESIDENT
- Phone
- (510) 834-2180
- Website
- www.mathaction.org
- Return prepared by
- R & A Tax & Accounting LLC
California records
California keeps its own records of charities and corporations. Search them by EIN 45-4718477 or by the name MATHACTION.
- Attorney General, Registry of Charities and Fundraisers
- Registration status and filed reports (CT-TR-1, RRF-1)
- Secretary of State, bizfile Online
- Corporation status, entity number, agent for service
- Franchise Tax Board
- Entity status letter (state tax exemption, good standing)
Mission
MATHACTION HAS A BIG MISSION: EMPOWER THE NEXT GENERATION TO USE MATHEMATICS AS A TOOL TO UNDERSTAND - AND SEEK SOLUTIONS FOR - THE MOST PRESSING GLOBAL CHALLENGES OF OUR TIME.
Program accomplishments
- VARIOUS INSTITUTES, EVENTS AND PRESENTATIONSExpenses $5,525 · revenue $18,078
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 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
- 45-4718477
- 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
- 2014
- Accounting year ends
- December
- Files
- Form 990-N (e-Postcard)
- Category (NTEE)
- Education (B90)
- Assets (IRS master file)
- $39,869
- Income (IRS master file)
- $18,078
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $18,078 | $6,383 | $39,869 | XML |
| 990 | December 2024 | $24,250 | $42,714 | $14,830 | XML |
| 990 | December 2023 | $34,028 | $43,456 | $34,811 | IRS |
| 990 | December 2022 | $45,012 | $90,191 | $38,963 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990-N for 2019 Officer: Tamar Posner | 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 45-4718477).
Questions about MATHACTION
- What is the EIN of MATHACTION?
- The employer identification number (EIN) of MATHACTION is 45-4718477.
- Is MATHACTION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2014.
- Are donations to MATHACTION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does MATHACTION file?
- Form 990-N (e-Postcard). Gross receipts normally $50,000 or less.
- When is the next return of MATHACTION 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 MATHACTION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of MATHACTION?
- The 990 for the year ended December 31, 2025 names TAMAR POSNER.
- Who are the officers and directors of MATHACTION?
- The 990 for the year ended December 31, 2025 lists 4 people; 0 received compensation from the organization.
- How much revenue does MATHACTION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $18,078, expenses of $6,383 and total assets of $39,869 at year end.
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