Nonprofit · EIN 23-7042727
AMERICAN FEDERATION OF TEACHERS
Also known as 1985 LOCAL AFT TAMALPAIS FEDERATION
Tax-exempt · LARKSPUR, CA 94977
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $339,548 | $293,812 | $45,736 | $111,628 | $0 | $111,628 |
| December 31, 2024 | 990 | $279,620 | $284,447 | -$4,827 | $72,017 | $6,125 | $65,892 |
| December 31, 2023 | 990 | $297,477 | $288,406 | $9,071 | $79,077 | $8,358 | $70,719 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $322,996
- Investment income
- $5
- Other revenue
- $16,547
Expenses
- Grants and similar amounts paid
- $0
- Benefits paid to members
- $1,263
- Compensation of officers, directors and key employees
- $46,606
- Salaries, compensation and benefits (total)
- $51,366
- Professional fundraising fees
- $0
- Accounting fees
- $2,800
Balance sheet and other
- Total assets, start of year
- $72,017
- Total assets, end of year
- $111,628
- Total liabilities, end of year
- $0
- Net assets, end of year
- $111,628
- Gross receipts
- $339,548
- Employees
- 14
- Year formed
- 1969
- 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 |
|---|---|---|---|
| Preston Picus | Vice President Officer | 5 | $6,925 |
| Amy Mastromonaco | Treasurer Officer | 5 | $5,188 |
| Erik Berkowitz | Co-President Officer | 10 | $4,295 |
| Melissa Boles | Co-President Officer | 10 | $4,295 |
| Nicole Pelletier | Building Rep Officer | 5 | $3,475 |
| Jessica Skieresz | Secretary Officer | 5 | $3,475 |
| Marissa Peck | Building Rep Officer | 5 | $3,447 |
| Greg Doherty | Building Rep Officer | 5 | $3,447 |
| Stefanie Stranczek | Building Rep Officer | 5 | $3,447 |
| Jason Adams | Building Rep Officer | 5 | $3,325 |
| Jennifer Dolan | Building Rep Officer | 5 | $1,801 |
| Javier Ordonez | Building Rep Officer | 5 | $1,743 |
| Jennifer Kenny-Baum | Building Rep Officer | 5 | $903 |
| Danielle Kestenbaum | Building Rep Officer | 5 | $840 |
990 for the year ended December 31, 2024: 15 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Amy Mastromonaco | Treasurer Officer | 5 | $7,500 |
| Stephen Hart | Vice President Officer | 5 | $6,666 |
| Erik Berkowitz | Building Rep Officer | 10 | $6,250 |
| Melissa Boles | Co-President Officer | 10 | $6,250 |
| Marissa Peck | Building Rep Officer | 5 | $5,000 |
| Nicole Pelletier | Building Rep Officer | 5 | $5,000 |
| Greg Doherty | Building Rep Officer | 5 | $5,000 |
| Stefanie Stranczek | Building Rep Officer | 5 | $5,000 |
| Jessica Skieresz | Secretary Officer | 5 | $5,000 |
| Preston Picus | Vice President Officer | 5 | $3,334 |
| Javier Ordonez | Building Rep Officer | 5 | $2,500 |
| Andre Sisneros | Representative Officer | 5 | $1,666 |
| Jason Adams | Building Rep Officer | 5 | $1,666 |
| Jon Black | Building Rep Officer | 5 | $1,666 |
| Danielle Kestenbaum | Building Rep Officer | 5 | $834 |
990 for the year ended December 31, 2023: 13 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| Stephen Hart | Vice President Officer | 5 | $6,666 |
| Amy Mastromonaco | Treasurer Officer | 5 | $5,000 |
| Erik Berkowitz | Co-President Officer | 10 | $4,166 |
| Melissa Boles | Co-President Officer | 10 | $4,166 |
| Michael Levinson | Building Rep Officer | 5 | $3,334 |
| Nicole Pelletier | Building Rep Officer | 5 | $3,334 |
| Jessica Skieresz | Secretary Officer | 5 | $3,334 |
| Lindsay Kornfeld | Building Rep Officer | 5 | $3,334 |
| Marissa Peck | Building Rep Officer | 5 | $3,333 |
| Greg Doherty | Building Rep Officer | 5 | $3,333 |
| Stefanie Stranczek | Building Rep Officer | 5 | $3,333 |
| Jon Black | Building Rep Officer | 5 | $1,666 |
| Javier Ordonez | Building Rep Officer | 5 | $1,666 |
Address and contacts
- Address (IRS master file)
- PO BOX 5156, LARKSPUR, CA 94977-5156
- In care of
- % CORY DEMARS
- Principal officer (990 for 2025)
- Erik Berkowitz, PO Box 5156, Larkspur, CA 94977
- Signed the 990
- Amy Mastromonaco, Treasurer
- Phone
- (415) 637-6213
- Return prepared by
- RITA C VILLA CPA
California records
California keeps its own records of charities and corporations. Search them by EIN 23-7042727 or by the name AMERICAN FEDERATION OF TEACHERS.
- 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
Collective bargaining representation
Program accomplishments
- Collective bargaining representation for about 300 certificated employees of the Tamalpais Unified School District
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 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
- 23-7042727
- Tax-exempt status
- 501(c)(5): Labor, agricultural or horticultural organization
- Donations deductible
- No
- Exempt since
- 1970
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Group exemption
- 0787: AMERICAN FEDERATION OF TEACHERS
- Assets (IRS master file)
- $111,628
- Income (IRS master file)
- $339,548
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | $339,548 | $293,812 | $111,628 | XML |
| 990 | December 2024 | $279,620 | $284,447 | $72,017 | XML |
| 990 | December 2023 | $297,477 | $288,406 | $79,077 | XML |
| 990 | December 2022 | $296,920 | $284,264 | $61,648 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
| 990 | December 2018 | – | – | – | IRS |
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 23-7042727).
Questions about AMERICAN FEDERATION OF TEACHERS
- What is the EIN of AMERICAN FEDERATION OF TEACHERS?
- The employer identification number (EIN) of AMERICAN FEDERATION OF TEACHERS is 23-7042727.
- Is AMERICAN FEDERATION OF TEACHERS tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(5) since 1970.
- Are donations to AMERICAN FEDERATION OF TEACHERS tax-deductible?
- No. The IRS master file says contributions to it are not deductible.
- Which annual return does AMERICAN FEDERATION OF TEACHERS 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 AMERICAN FEDERATION OF TEACHERS 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 AMERICAN FEDERATION OF TEACHERS 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 AMERICAN FEDERATION OF TEACHERS?
- The 990 for the year ended December 31, 2025 names Erik Berkowitz.
- Who are the officers and directors of AMERICAN FEDERATION OF TEACHERS?
- The 990 for the year ended December 31, 2025 lists 14 people; 14 received compensation from the organization, the highest $6,925 (Preston Picus, Vice President).
- How much revenue does AMERICAN FEDERATION OF TEACHERS have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $339,548, expenses of $293,812 and total assets of $111,628 at year end.
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