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American Federation Of Teachers

1985 Local Aft Tamalpais Federation

Organization summary

Type of Nonprofit

Designated as a Labor, agricultural and horticultural organizations that are educational or instructive, including unions, created for the purpose of improving conditions of work, and products of efficiency.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$280k (2024)

Expenses
$284k (2024)

Total Assets
$72k (2024)

Total Liabilities
$6.13k (2024)

Source: Form 990 tax filings from 2011 to 2024

Tax Filings by Year

Form 990 is an information return that most organizations claiming federal tax-exempt status must file yearly with the IRS. Nonprofit Explorer has IRS digitized Form 990 data for filings processed in 2012 and later. If this organization filed an amended return, it may not be reflected below. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$279,620
Expenses
$284,447
Net Income
-$4,827
Net Assets
$65,892
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $264,367
94.5%
Investment Income $5
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $15,248
5.5%
Notable Expenses Percent of Total Expenses
Executive Compensation $63,332
22.3%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $72,017
Total Liabilities $6,125
Net Assets $65,892
Compensation
Key Employees and Officers Compensation Related Other
Amy Mastromonaco (Treasurer) $7,500 $0 $0
Stephen Hart (Vice President) $6,666 $0 $0
Erik Berkowitz (Building Rep) $6,250 $0 $0
Melissa Boles (Co President) $6,250 $0 $0
Marissa Peck (Building Rep) $5,000 $0 $0
Nicole Pelletier (Building Rep) $5,000 $0 $0
Greg Doherty (Building Rep) $5,000 $0 $0
Stefanie Stranczek (Building Rep) $5,000 $0 $0
Jessica Skieresz (Secretary) $5,000 $0 $0
Preston Picus (Vice President) $3,334 $0 $0
Javier Ordonez (Building Rep) $2,500 $0 $0
Andre Sisneros (Representative) $1,666 $0 $0
Jason Adams (Building Rep) $1,666 $0 $0
Jon Black (Building Rep) $1,666 $0 $0
Danielle Kestenbaum (Building Rep) $834 $0 $0

Document Links

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$297,477
Expenses
$288,406
Net Income
$9,071
Net Assets
$70,719
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $279,016
93.8%
Investment Income $23
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $18,438
6.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $46,665
16.2%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $79,077
Total Liabilities $8,358
Net Assets $70,719
Compensation
Key Employees and Officers Compensation Related Other
Stephen Hart (Vice President) $6,666 $0 $0
Amy Mastromonaco (Treasurer) $5,000 $0 $0
Erik Berkowitz (Co President) $4,166 $0 $0
Melissa Boles (Co President) $4,166 $0 $0
Michael Levinson (Building Rep) $3,334 $0 $0
Nicole Pelletier (Building Rep) $3,334 $0 $0
Jessica Skieresz (Secretary) $3,334 $0 $0
Lindsay Kornfeld (Building Rep) $3,334 $0 $0
Marissa Peck (Building Rep) $3,333 $0 $0
Greg Doherty (Building Rep) $3,333 $0 $0
Stefanie Stranczek (Building Rep) $3,333 $0 $0
Jon Black (Building Rep) $1,666 $0 $0
Javier Ordonez (Building Rep) $1,666 $0 $0

Document Links

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$296,920
Expenses
$284,264
Net Income
$12,656
Net Assets
$61,648
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $279,910
94.3%
Investment Income $113
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $16,897
5.7%
Notable Expenses Percent of Total Expenses
Executive Compensation $46,668
16.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $61,648
Total Liabilities $0
Net Assets $61,648
Compensation
Key Employees and Officers Compensation Related Other
Stephen Hart (Vice President) $6,666 $0 $0
Amy Mastromonaco (Treasurer) $5,000 $0 $0
Erik Berkowitz (Co President) $4,166 $0 $0
Melissa Boles (Co President) $4,166 $0 $0
Michael Levinson (Building Rep) $3,334 $0 $0
Marissa Peck (Building Rep) $3,334 $0 $0
Nicole Pelletier (Building Rep) $3,334 $0 $0
Greg Doherty (Building Rep) $3,334 $0 $0
Jessica Skieresz (Secretary) $3,334 $0 $0
Lindsay Kornfeld (Building Rep) $3,334 $0 $0
Jennifer Bjerke (Building Rep) $1,667 $0 $0
Sheila Souder (Building Rep) $1,667 $0 $0
Stefanie Stranczek (Building Rep) $1,666 $0 $0
Jon Black (Building Rep) $1,666 $0 $0
Javier Ordonez (Building Rep) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$279,825
Expenses
$289,975
Net Income
-$10,150
Net Assets
$48,992
Notable Sources of Revenue Percent of Total Revenue
Contributions $11,600
4.1%
Program Services $247,993
88.6%
Investment Income $409
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $19,823
7.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $44,800
15.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $48,992
Total Liabilities $0
Net Assets $48,992
Compensation
Key Employees and Officers Compensation Related Other
Alyssa Callahan (Vice President) $8,000 $0 $0
Ann Jaime (President) $8,000 $0 $0
Mitch Cohen (Treasurer) $4,800 $0 $0
Michael Levinson (Building Rep) $3,200 $0 $0
Nikole Denton (Secretary) $3,200 $0 $0
Nicole Pelletier (Building Rep) $3,200 $0 $0
Ted Brown (Building Rep) $3,200 $0 $0
Jessica Skieresz (Secretary) $3,200 $0 $0
Sheila R Souder (Building Rep) $3,200 $0 $0
Lindsay Kornfeld (Building Rep) $3,200 $0 $0
Jennifer Bjerke (Building Rep) $1,600 $0 $0
Amy Mastromonaco (Treasurer) $0 $0 $0
Erik Berkowitz (Co President) $0 $0 $0
Melissa Boles (Co President) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$317,841
Expenses
$276,117
Net Income
$41,724
Net Assets
$59,142
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $302,341
95.1%
Investment Income $3
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $15,497
4.9%
Notable Expenses Percent of Total Expenses
Executive Compensation $43,200
15.6%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $59,142
Total Liabilities $0
Net Assets $59,142
Compensation
Key Employees and Officers Compensation Related Other
Alyssa Callahan (Vice President) $8,000 $0 $0
Ann Jaime (President) $8,000 $0 $0
Nikole Denton (Secretary) $4,800 $0 $0
Sheila R Souder (Building Rep) $4,800 $0 $0
Mitch Cohen (Treasurer) $4,800 $0 $0
Michael Levinson (Building Rep) $3,200 $0 $0
Nicole Pelletier (Building Rep) $3,200 $0 $0
Ted Brown (Building Rep) $3,200 $0 $0
James Mc Daniel (Building Rep) $1,600 $0 $0
Greg Stevens (Building Rep) $1,600 $0 $0

Document Links

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$278,123
Expenses
$276,985
Net Income
$1,138
Net Assets
$17,418
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $278,119
100.0%
Investment Income $4
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $40,000
14.4%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $17,418
Total Liabilities $0
Net Assets $17,418
Compensation
Key Employees and Officers Compensation Related Other
Cory De Mars (President) $8,000 $0 $0
Ann Jaime (Vice President) $6,400 $0 $0
Mitch Cohen (Treasurer) $4,800 $0 $0
Alyssa Callahan (Secretary) $3,200 $0 $0
Nicole Pelletier (Building Rep) $3,200 $0 $0
Ted Brown (Building Rep) $3,200 $0 $0
Greg Stevens (Building Rep) $3,200 $0 $0
Paul Grifo (Building Rep) $3,200 $0 $0
Sheila R Souder (Building Rep) $3,200 $0 $0
Leah Ramsey (Building Rep) $1,600 $0 $0

Document Links

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$272,238
Expenses
$280,737
Net Income
-$8,499
Net Assets
$16,280
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $272,233
100.0%
Investment Income $5
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $41,600
14.8%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $16,280
Total Liabilities $0
Net Assets $16,280
Compensation
Key Employees and Officers Compensation Related Other
Cory De Mars (President) $8,000 $0 $0
Ann Jaime (Vice President) $6,400 $0 $0
Mitch Cohen (Treasurer) $4,800 $0 $0
Alyssa Callahan (Secretary) $3,200 $0 $0
Matthew Tierney (Building Rep) $3,200 $0 $0
Nicole Pelletier (Building Rep) $3,200 $0 $0
James Mc Daniel (Building Rep) $3,200 $0 $0
Greg Stevens (Building Rep) $3,200 $0 $0
Paul Grifo (Building Rep) $3,200 $0 $0
Sheila R Souder (Building Rep) $3,200 $0 $0

Document Links

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$231,266
Expenses
$264,604
Net Income
-$33,338
Net Assets
$24,779
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $231,262
100.0%
Investment Income $4
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $41,500
15.7%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $24,779
Total Liabilities $0
Net Assets $24,779
Compensation
Key Employees and Officers Compensation Related Other
Cory De Mars (President) $8,300 $0 $0
Wendy Doherty (Ex Treasurer) $6,640 $0 $0
Alyssa Callahan (Secretary) $3,320 $0 $0
Ann Jaime (Vice President) $3,320 $0 $0
Matthew Tierney (Building Rep) $3,320 $0 $0
Nicole Pelletier (Building Rep) $3,320 $0 $0
James Mc Daniel (Building Rep) $3,320 $0 $0
Greg Stevens (Building Rep) $3,320 $0 $0
Paul Grifo (Building Rep) $3,320 $0 $0
Sheila R Souder (Building Rep) $3,320 $0 $0
Mitch Cohen (Treasurer) $0 $0 $0

Document Links

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$238,725
Expenses
$242,127
Net Income
-$3,402
Net Assets
$58,117
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $238,719
100.0%
Investment Income $6
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $39,840
16.5%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $58,117
Total Liabilities $0
Net Assets $58,117
Compensation
Key Employees and Officers Compensation Related Other
Cory De Mars (President) $8,300 $0 $0
Wendy Doherty (Treasurer) $6,640 $0 $0
Ann Jaime (Vice President) $3,320 $0 $0
Matthew Tierney (Building Rep) $3,320 $0 $0
Nicole Pelletier (Building Rep) $3,320 $0 $0
James Mc Daniel (Building Rep) $3,320 $0 $0
Greg Stevens (Building Rep) $3,320 $0 $0
Paul Grifo (Building Rep) $3,320 $0 $0
Sheila R Souder (Building Rep) $3,320 $0 $0
Alyssa Callahan (Secretary) $1,660 $0 $0

Document Links

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$235,843
Expenses
$227,503
Net Income
$8,340
Net Assets
$61,519
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $235,836
100.0%
Investment Income $7
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $39,840
17.5%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $61,519
Total Liabilities $0
Net Assets $61,519
Compensation
Key Employees and Officers Compensation Related Other
Cory De Mars (President) $8,300 $0 $0
Wendy Doherty (Treasurer) $6,640 $0 $0
Ann Jaime (Vice President) $3,320 $0 $0
Matthew Tierney (Building Rep) $3,320 $0 $0
Nicole Pelletier (Building Rep) $3,320 $0 $0
James Mc Daniel (Building Rep) $3,320 $0 $0
Greg Stevens (Building Rep) $3,320 $0 $0
Mary Buchanan (Building Rep) $3,320 $0 $0
Sheila R Souder (Building Rep) $3,320 $0 $0
Alyssa Callahan (Secretary) $1,660 $0 $0

Document Links

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$177,453
Expenses
$206,569
Net Income
-$29,116
Net Assets
$53,179
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $11
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $53,179
Total Liabilities $0
Net Assets $53,179

Document Links

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$204,146
Expenses
$215,523
Net Income
-$11,377
Net Assets
$82,295
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $204,119
100.0%
Investment Income $27
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $29,880
13.9%
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $82,295
Total Liabilities $0
Net Assets $82,295

Document Links

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$168,210
Expenses
$145,088
Net Income
$23,122
Net Assets
$93,672
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $58
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $93,672
Total Liabilities $0
Net Assets $93,672

Document Links

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$177,703
Expenses
$190,263
Net Income
-$12,560
Net Assets
$70,550
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $65
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $70,550
Total Liabilities $0
Net Assets $70,550

Document Links

Fiscal Year Ending Dec.
2010

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2009

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2008

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2007

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2006

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2005

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

Fiscal Year Ending Dec.
2004

No Extracted Financial Data

Extracted financial data is not available for the forms filed in this tax period, but Form 990 documents are available for download.

Document Links

About This Data

What Is This Data?

Nonprofit Explorer includes summary data for nonprofit tax returns and full Form 990 documents, in both PDF and digital formats.

The summary data contains information processed by the IRS during the 2012-2019 calendar years; this generally consists of filings for the 2011-2018 fiscal years, but may include older records. This data release includes only a subset of what can be found in the full Form 990s.

In addition to the raw summary data, we link to PDFs and digital copies of full Form 990 documents wherever possible. This consists of separate releases by the IRS of Form 990 documents processed by the agency, which we update regularly.

We also link to copies of audits nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year since 2016. These audits are copied from the Federal Audit Clearinghouse.

Which Organizations Are Here?

Every organization that has been recognized as tax exempt by the IRS has to file Form 990 every year, unless they make less than $200,000 in revenue and have less than $500,000 in assets, in which case they have to file form 990-EZ. Organizations making less than $50,000 don’t have to file either form but do have to let the IRS they’re still in business via a Form 990N "e-Postcard."

Nonprofit Explorer has organizations claiming tax exemption in each of the 27 subsections of the 501(c) section of the tax code, and which have filed a Form 990, Form 990EZ or Form 990PF. Taxable trusts and private foundations that are required to file a form 990PF are also included. Small organizations filing a Form 990N "e-Postcard" are not included in this data.

Types of Nonprofits

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

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For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
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  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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