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Tau Foundation Inc

  • New York, NY
  • Tax-exempt since May 2008
  • EIN: 45-0571259

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: Philanthropy, Voluntarism and Grantmaking Foundations / Private Grantmaking Foundations (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$98.9k (2024)

Expenses
$161k (2024)

Total Assets
$599k (2024)

Total Liabilities
$0 (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-PF
Revenue
$98,928
Expenses
$160,626
Net Income
-$61,698
Net Assets
$599,495
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $25,022
25.3%
Sales of Assets $73,906
74.7%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $153,032
95.3%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $599,495
Total Liabilities $0
Net Assets $599,495
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary) $0 $0
Anton J Piatigorsky (Vice President, Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 12, 2025

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$21,008
Expenses
$35,408
Net Income
-$14,400
Net Assets
$661,193
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $21,008
100%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $28,269
79.8%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $661,193
Total Liabilities $0
Net Assets $661,193
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary) $0 $0
Anton J Piatigorsky (Vice President, Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 15, 2024

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$27,976
Expenses
$16,969
Net Income
$11,007
Net Assets
$675,593
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $14,712
52.6%
Sales of Assets $13,264
47.4%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $8,433
49.7%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $675,593
Total Liabilities $0
Net Assets $675,593
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary) $0 $0
Anton J Piatigorsky (Vice President, Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 14, 2023

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$110,574
Expenses
$164,196
Net Income
-$53,622
Net Assets
$664,586
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $17,651
16.0%
Sales of Assets $92,923
84.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $154,830
94.3%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $664,586
Total Liabilities $0
Net Assets $664,586
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary) $0 $0
Anton J Piatigorsky (Vice President, Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 15, 2022

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$32,463
Expenses
$74,518
Net Income
-$42,055
Net Assets
$718,207
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $17,276
53.2%
Sales of Assets $15,187
46.8%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $62,281
83.6%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $718,208
Total Liabilities $1
Net Assets $718,207
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary) $0 $0
Anton J Piatigorsky (Vice President, Secretary) $0 $0

Document Links

990-PF
Filed on Nov. 15, 2021

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$48,987
Expenses
$44,653
Net Income
$4,334
Net Assets
$760,262
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $26,363
53.8%
Sales of Assets $22,624
46.2%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $35,064
78.5%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $760,263
Total Liabilities $1
Net Assets $760,262
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer,Direct) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary,Di) $0 $0
Anton J Piatigorsky (Director) $0 $0

Document Links

990-PF
Filed on Nov. 13, 2020

Primary tax return for a private foundation's activities, finances, and governance

View Filing
XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$40,416
Expenses
$50,836
Net Income
-$10,420
Net Assets
$755,929
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $21,628
53.5%
Sales of Assets $18,788
46.5%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $42,102
82.8%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $755,929
Total Liabilities $0
Net Assets $755,929
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer,Direct) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary,Di) $0 $0
Michael A Varet Deceased 52019 (Vice President,Secretary) $0 $0
Anton J Piatigorsky (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 12, 2019

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$49,628
Expenses
$79,974
Net Income
-$30,346
Net Assets
$766,349
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $17,971
36.2%
Sales of Assets $31,657
63.8%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $69,187
86.5%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $766,349
Total Liabilities $0
Net Assets $766,349
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer,Direct) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary,Di) $0 $0
Michael A Varet (Vice President,Secretary) $0 $0
Anton J Piatigorsky (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on July 18, 2018

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$30,707
Expenses
$97,497
Net Income
-$66,790
Net Assets
$796,695
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $19,360
63.0%
Sales of Assets $11,347
37.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $87,252
89.5%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $796,695
Total Liabilities $0
Net Assets $796,695
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer,Direct) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary,Di) $0 $0
Michael A Varet (Vice President,Secretary) $0 $0
Anton J Piatigorsky (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 14, 2017

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$40,750
Expenses
$115,393
Net Income
-$74,643
Net Assets
$863,485
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $20,931
51.4%
Sales of Assets $19,819
48.6%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $104,273
90.4%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $863,485
Total Liabilities $0
Net Assets $863,485
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer,Direct) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary,Di) $0 $0
Michael A Varet (Vice President,Secretary) $0 $0
Anton J Piatigorsky (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on May 13, 2016

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$69,282
Expenses
$101,268
Net Income
-$31,986
Net Assets
$938,128
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $20,996
30.3%
Sales of Assets $48,286
69.7%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $89,777
88.7%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $938,128
Total Liabilities $0
Net Assets $938,128
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer,Direct) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary,Di) $0 $0
Michael A Varet (Vice President,Secretary) $0 $0
Anton J Piatigorsky (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Aug. 12, 2015

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$48,215
Expenses
$101,013
Net Income
-$52,798
Net Assets
$970,114
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $24,147
50.1%
Sales of Assets $24,068
49.9%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $92,216
91.3%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $970,114
Total Liabilities $0
Net Assets $970,114
Compensation
Key Employees and Officers Compensation Other
Joram Piatigorsky (President,Treasurer,Direct) $0 $0
Lona Piatigorsky (Chairman,Asst Secretary,Di) $0 $0
Michael A Varet (Vice President,Secretary) $0 $0
Anton J Piatigorsky (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on May 29, 2014

Primary tax return for a private foundation's activities, finances, and governance

View Filing
PDF XML

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
-$30,394
Expenses
$99,424
Net Income
-$129,818
Net Assets
$1,022,911
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $32,242
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $86,467
87.0%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $1,022,912
Total Liabilities $1
Net Assets $1,022,911

Document Links

990-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

Fiscal Year Ending Dec.
2011

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$245,030
Expenses
$50,153
Net Income
$194,877
Net Assets
$1,152,729
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $36,634
15.0%
Sales of Assets $208,396
85.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $40,052
79.9%
Compensation of Officers* $0
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.
Assets/Debt
Total Assets $1,152,730
Total Liabilities $1
Net Assets $1,152,729

Document Links

990-PF

Primary tax return for a private foundation'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-PF

Primary tax return for a private foundation'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-PF

Primary tax return for a private foundation'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-PF

Primary tax return for a private foundation'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-PF

Primary tax return for a private foundation's activities, finances, and governance

PDF

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 »

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.

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Nonprofit Explorer

Browse millions of annual returns filed by tax-exempt organizations with ProPublica’s Nonprofit Explorer. See details like executive compensation, revenue, expenses and more. Search for an organization or a person, or search the full text of filings.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

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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