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Belvedere Tiburon Landmarks Society

  • Tiburon, CA
  • Tax-exempt since Aug. 1962
  • EIN: 94-6104011

Organization summary

Type of Nonprofit

Designated as a Organizations for any of the following purposes: religious, educational, charitable, scientific, literary, testing for public safety, fostering national or international amateur sports competition (as long as it doesn't provide athletic facilities or equipment), or the prevention of cruelty to children or animals.

Category: Arts, Culture and Humanities / Historical Societies, Related Historical Activities (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$709k (2023)

Expenses
$475k (2023)

Total Assets
$4.63M (2023)

Total Liabilities
$42.4k (2023)

Source: Form 990 tax filings from 2011 to 2023

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.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$709,062
Expenses
$474,820
Net Income
$234,242
Net Assets
$4,584,965
Notable Sources of Revenue Percent of Total Revenue
Contributions $546,646
77.1%
Program Services $127,350
18.0%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $23,834
3.4%
Sales of Assets $0
Net Inventory Sales $11,219
1.6%
Other Revenue $13
0.0%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $117,703
24.8%
Assets/Debt
Total Assets $4,627,371
Total Liabilities $42,406
Net Assets $4,584,965
Compensation
Key Employees and Officers Compensation Related Other
Phil Cassou (President) $0 $0 $0
Helen Lindqvist (Secretary) $0 $0 $0
Jim Allen (Co Treasurer) $0 $0 $0
Brooke Halsey (Co Treasurer) $0 $0 $0
Peter Brooks (Board Member) $0 $0 $0
Eva Buxton (Board Member) $0 $0 $0
Bob Harrison (Board Member) $0 $0 $0
Gabrielle Keil (Board Member) $0 $0 $0
Suzanne White (Board Member) $0 $0 $0
Patricia A Flax (Executive Director) $0 $0 $0
+ View more people

Document Links

990
Filed on June 20, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$416,267
Expenses
$438,399
Net Income
-$22,132
Net Assets
$4,109,406
Notable Sources of Revenue Percent of Total Revenue
Contributions $242,432
58.2%
Program Services $162,709
39.1%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $2,888
0.7%
Sales of Assets $0
Net Inventory Sales $8,238
2.0%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $148,205
33.8%
Assets/Debt
Total Assets $4,143,572
Total Liabilities $34,166
Net Assets $4,109,406
Compensation
Key Employees and Officers Compensation Related Other
Patricia A Flax (Executive Director) $86,050 $0 $0
Phil Cassou (President) $0 $0 $0
Helen Lindqvist (Secretary) $0 $0 $0
Jim Allen (Co Treasurer) $0 $0 $0
Brooke Halsey (Co Treasurer) $0 $0 $0
Peter Brooks (Board Member) $0 $0 $0
Eva Buxton (Board Member) $0 $0 $0
Bob Harrison (Board Member) $0 $0 $0
Gabrielle Keil (Board Member) $0 $0 $0
Suzanne White (Board Member) $0 $0 $0
+ View more people

Document Links

990
Filed on May 31, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$407,170
Expenses
$395,781
Net Income
$11,389
Net Assets
$4,451,698
Notable Sources of Revenue Percent of Total Revenue
Contributions $262,706
64.5%
Program Services $129,946
31.9%
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $1,073
0.3%
Sales of Assets $0
Net Inventory Sales $13,445
3.3%
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $86,050
21.7%
Professional Fundraising Fees $0
Other Salaries and Wages $62,429
15.8%
Assets/Debt
Total Assets $4,475,074
Total Liabilities $23,376
Net Assets $4,451,698
Compensation
Key Employees and Officers Compensation Related Other
Patricia A Flax (Executive Director) $86,050 $0 $0
Phil Cassou (President) $0 $0 $0
Helen Lindqvist (Secretary) $0 $0 $0
Jim Allen (Co Treasurer) $0 $0 $0
Brooke Halsey (Co Treasurer) $0 $0 $0
Peter Brooks (Board Member) $0 $0 $0
Eva Buxton (Board Member) $0 $0 $0
Bob Harrison (Board Member) $0 $0 $0
Gabrielle Keil (Board Member) $0 $0 $0
Suzanne White (Board Member) $0 $0 $0
+ View more people

Document Links

990
Filed on April 15, 2022

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$123,990
Expenses
$311,001
Net Income
-$187,011
Net Assets
$4,220,537
Notable Sources of Revenue Percent of Total Revenue
Contributions $118,013
95.2%
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $5,977
4.8%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $111,784
35.9%
Assets/Debt
Total Assets $4,413,565
Total Liabilities $193,028
Net Assets $4,220,537
Compensation
Key Employees and Officers Compensation Related Other
Alan Perper (Treasurer) $0 $0 $0
Phil Cassou (Vice President) $0 $0 $0
Liz Kerslake (President) $0 $0 $0
Helen Lindqvist (Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on May 17, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$113,912
Expenses
$349,924
Net Income
-$236,012
Net Assets
$4,065,369
Notable Sources of Revenue Percent of Total Revenue
Contributions $79,389
69.7%
Program Services $0
Investment Income $0
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $34,523
30.3%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $113,212
32.4%
Assets/Debt
Total Assets $4,086,388
Total Liabilities $21,019
Net Assets $4,065,369
Compensation
Key Employees and Officers Compensation Related Other
Alan Perper (Treasurer) $0 $0 $0
Phil Cassou (Vice President) $0 $0 $0
Liz Kerslake (President) $0 $0 $0
Helen Lindqvist (Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on May 4, 2020

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$121,890
Expenses
$362,663
Net Income
-$240,773
Net Assets
$3,884,251
Notable Sources of Revenue Percent of Total Revenue
Contributions $51,460
42.2%
Program Services $0
Investment Income $57,073
46.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $13,357
11.0%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $74,314
20.5%
Assets/Debt
Total Assets $3,912,472
Total Liabilities $28,221
Net Assets $3,884,251
Compensation
Key Employees and Officers Compensation Related Other
Alan Perper (Treasurer) $0 $0 $0
Phil Cassou (Vice President) $0 $0 $0
Liz Kerslake (President) $0 $0 $0
Helen Lindqvist (Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on May 15, 2019

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$175,851
Expenses
$348,224
Net Income
-$172,373
Net Assets
$4,119,521
Notable Sources of Revenue Percent of Total Revenue
Contributions $83,540
47.5%
Program Services $0
Investment Income $52,399
29.8%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $39,912
22.7%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $89,477
25.7%
Assets/Debt
Total Assets $4,120,521
Total Liabilities $1,000
Net Assets $4,119,521

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$125,788
Expenses
$295,295
Net Income
-$169,507
Net Assets
$3,960,388
Notable Sources of Revenue Percent of Total Revenue
Contributions $55,049
43.8%
Program Services $0
Investment Income $42,325
33.6%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $27,998
22.3%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $416
0.3%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $73,938
25.0%
Assets/Debt
Total Assets $3,974,077
Total Liabilities $13,689
Net Assets $3,960,388

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$114,688
Expenses
$297,449
Net Income
-$182,761
Net Assets
$3,924,648
Notable Sources of Revenue Percent of Total Revenue
Contributions $38,579
33.6%
Program Services $0
Investment Income $56,817
49.5%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $18,692
16.3%
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $600
0.5%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $75,617
25.4%
Assets/Debt
Total Assets $3,930,897
Total Liabilities $6,249
Net Assets $3,924,648
Compensation
Key Employees and Officers Compensation Related Other
Barbara Wilson (Treasurer) $0 $0 $0
Jack Fiorito (Vice President) $0 $0 $0
Jim Allen (President) $0 $0 $0
Kuorosh Baradaran (Secretary) $0 $0 $0
+ View more people

Document Links

990
Filed on June 9, 2016

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$236,950
Expenses
$204,665
Net Income
$32,285
Net Assets
$4,041,394
Notable Sources of Revenue Percent of Total Revenue
Contributions $71,347
30.1%
Program Services $0
Investment Income $64,694
27.3%
Bond Proceeds $0
Royalties $0
Rental Property Income $62,559
26.4%
Net Fundraising $32,486
13.7%
Sales of Assets $0
Net Inventory Sales $4,489
1.9%
Other Revenue $1,375
0.6%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $70,415
34.4%
Assets/Debt
Total Assets $4,030,561
Total Liabilities -$10,833
Net Assets $4,041,394

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$229,912
Expenses
$218,525
Net Income
$11,387
Net Assets
$4,008,527
Notable Sources of Revenue Percent of Total Revenue
Contributions $54,270
23.6%
Program Services $0
Investment Income $47,016
20.4%
Bond Proceeds $0
Royalties $0
Rental Property Income $69,150
30.1%
Net Fundraising $54,389
23.7%
Sales of Assets $0
Net Inventory Sales $4,560
2.0%
Other Revenue $527
0.2%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $65,190
29.8%
Assets/Debt
Total Assets $4,043,266
Total Liabilities $34,739
Net Assets $4,008,527

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$316,564
Expenses
$299,778
Net Income
$16,786
Net Assets
$3,841,963
Notable Sources of Revenue Percent of Total Revenue
Contributions $122,447
38.7%
Program Services $23,980
7.6%
Investment Income $41,777
13.2%
Bond Proceeds $0
Royalties $0
Rental Property Income $130,950
41.4%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales -$2,590
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $83,335
27.8%
Assets/Debt
Total Assets $3,867,344
Total Liabilities $25,381
Net Assets $3,841,963

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$222,414
Expenses
$290,306
Net Income
-$67,892
Net Assets
$3,740,658
Notable Sources of Revenue Percent of Total Revenue
Contributions $81,359
36.6%
Program Services $0
Investment Income $33,258
15.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $123,516
55.5%
Net Fundraising $39,650
17.8%
Sales of Assets -$52,220
Net Inventory Sales -$3,149
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $77,875
26.8%
Assets/Debt
Total Assets $3,757,176
Total Liabilities $16,518
Net Assets $3,740,658

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Sept.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Sept.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Sept.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Sept.
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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Sept.
2003

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Sept.
2002

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending Sept.
2001

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

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

About 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 »

Get the Data

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.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • 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.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

Byline

By Andrea Suozzo, Alec Glassford and Ash Ngu, ProPublica, and Brandon Roberts, Special to ProPublica.
Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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