Thomas & Margaret Tan Family Foundation

Hillsborough, CA
Tax-exempt since March 2001
EIN: 94-3381136

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Type of Nonprofit

Designated as a 501(c)(3) 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 Independent Foundations (NTEE)

Donations to this organization are tax deductible.

Revenue

$76.7k (2024)

Expenses

$48.7k (2024)

Total Assets

$705k (2024)

Total Liabilities

$12.5k (2024)

Years with missing data

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

Revenue

$76,746

Expenses

$48,675

Net Income

$28,071

Net Assets

$692,147

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	62.1%
Interest Revenue	$2	0.0%
Dividends	$21,316	27.8%
Sales of Assets	$7,744	10.1%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$39,403	81.0%
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	$704,647
Total Liabilities	$12,500
Net Assets	$692,147

Compensation

Key Employees and Officers	Compensation	Other
Ernest P Tan (President)	$0	$0
Christina L Tan (Cfo)	$0	$0
Cathy Ling (Secretary)	$0	$0

990-PF

Filed on June 9, 2025

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2023

Revenue

$37,826

Expenses

$50,299

Net Income

-$12,473

Net Assets

$663,299

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	> 100%
Interest Revenue	$2	0.0%
Dividends	$15,713	41.5%
Sales of Assets	-$25,573
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$41,670	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	$663,999
Total Liabilities	$700
Net Assets	$663,299

Compensation

Key Employees and Officers	Compensation	Other
Ernest P Tan (President)	$0	$0
Christina L Tan (Cfo)	$0	$0
Cathy Ling (Secretary)	$0	$0

990-PF

Filed on May 9, 2024

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2022

Revenue

$69,031

Expenses

$53,578

Net Income

$15,453

Net Assets

$676,237

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	69.1%
Interest Revenue	$3	0.0%
Dividends	$15,576	22.6%
Sales of Assets	$5,768	8.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$45,050	84.1%
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	$678,737
Total Liabilities	$2,500
Net Assets	$676,237

Compensation

Key Employees and Officers	Compensation	Other
Ernest P Tan (President)	$0	$0
Christina L Tan (Cfo)	$0	$0
Cathy Ling (Secretary)	$0	$0

990-PF

Filed on May 8, 2023

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2021

Revenue

$70,788

Expenses

$44,681

Net Income

$26,107

Net Assets

$661,003

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	67.4%
Interest Revenue	$4	0.0%
Dividends	$12,053	17.0%
Sales of Assets	$11,047	15.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$36,075	80.7%
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	$661,003
Total Liabilities	$0
Net Assets	$661,003

Compensation

Key Employees and Officers	Compensation	Other
Ernest P Tan (President)	$0	$0
Christina L Tan (Cfo)	$0	$0
Cathy Ling (Secretary)	$0	$0

990-PF

Filed on May 10, 2022

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2020

Revenue

$64,214

Expenses

$39,994

Net Income

$24,220

Net Assets

$634,825

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	74.3%
Interest Revenue	$4	0.0%
Dividends	$12,470	19.4%
Sales of Assets	$4,056	6.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$32,535	81.3%
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	$634,826
Total Liabilities	$1
Net Assets	$634,825

Compensation

Key Employees and Officers	Compensation	Other
Ernest P Tan (President)	$0	$0
Christina L Tan (Cfo)	$0	$0
Cathy Ling (Secretary)	$0	$0

990-PF

Filed on Nov. 30, 2021

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2019

Revenue

$63,624

Expenses

$38,215

Net Income

$25,409

Net Assets

$610,569

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	74.9%
Interest Revenue	$63	0.1%
Dividends	$15,606	24.5%
Sales of Assets	$271	0.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$31,310	81.9%
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	$610,569
Total Liabilities	$0
Net Assets	$610,569

990-PF

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

PDF

Fiscal Year Ending Dec.
2018

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2017

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2016

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2015

Revenue

$62,164

Expenses

$27,429

Net Income

$34,735

Net Assets

$521,862

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	76.7%
Interest Revenue	$2	0.0%
Dividends	$7,404	11.9%
Sales of Assets	$7,074	11.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$19,660	71.7%
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	$521,862
Total Liabilities	$0
Net Assets	$521,862

990-PF

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

PDF

Fiscal Year Ending Dec.
2014

Revenue

$156,299

Expenses

$21,554

Net Income

$134,745

Net Assets

$485,112

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	30.5%
Interest Revenue	$825	0.5%
Dividends	$8,817	5.6%
Sales of Assets	$98,973	63.3%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$16,035	74.4%
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	$485,112
Total Liabilities	$0
Net Assets	$485,112

990-PF

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

PDF

Fiscal Year Ending Dec.
2013

Revenue

$70,437

Expenses

$14,781

Net Income

$55,656

Net Assets

$351,092

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$47,684	67.7%
Interest Revenue	$1,748	2.5%
Dividends	$2,317	3.3%
Sales of Assets	$18,688	26.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$9,785	66.2%
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	$351,092
Total Liabilities	$0
Net Assets	$351,092

990-PF

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

PDF

Fiscal Year Ending Dec.
2012

Revenue

$66,204

Expenses

$11,822

Net Income

$54,382

Net Assets

$295,597

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$56,437	85.2%
Interest Revenue	$1,052	1.6%
Dividends	$3,004	4.5%
Sales of Assets	$5,711	8.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$6,810	57.6%
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	$295,597
Total Liabilities	$0
Net Assets	$295,597

990-PF

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

PDF

Fiscal Year Ending Dec.
2011

Revenue

$8,696

Expenses

$10,419

Net Income

-$1,723

Net Assets

$115,851

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$915	10.5%
Dividends	$1,647	18.9%
Sales of Assets	$6,134	70.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$5,210	50.0%
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	$115,851
Total Liabilities	$0
Net Assets	$115,851

990-PF

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

PDF

Fiscal Year Ending Dec.
2010

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2009

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2008

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2007

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2006

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2005

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2004

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2003

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2002

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

990-PF

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

PDF

Fiscal Year Ending Dec.
2001

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

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.

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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

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Updated September 25, 2025

Thomas & Margaret Tan Family Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $76.7k (2024)

Expenses $48.7k (2024)

Total Assets $705k (2024)

Total Liabilities $12.5k (2024)

Tax Filings by Year

Fiscal Year Ending Dec. 2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2021

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2018

No Extracted Financial Data

Document Links

990-PF

Fiscal Year Ending Dec. 2017

No Extracted Financial Data

Document Links

990-PF

Fiscal Year Ending Dec. 2016

No Extracted Financial Data

Document Links

990-PF

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2012

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Fiscal Year Ending Dec. 2011

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

Revenue

$76.7k (2024)

Expenses

$48.7k (2024)

Total Assets

$705k (2024)

Total Liabilities

$12.5k (2024)

Fiscal Year Ending Dec.
2024

Fiscal Year Ending Dec.
2023

Fiscal Year Ending Dec.
2022

Fiscal Year Ending Dec.
2021

Fiscal Year Ending Dec.
2020

Fiscal Year Ending Dec.
2019

Fiscal Year Ending Dec.
2018

Fiscal Year Ending Dec.
2017

Fiscal Year Ending Dec.
2016

Fiscal Year Ending Dec.
2015

Fiscal Year Ending Dec.
2014

Fiscal Year Ending Dec.
2013

Fiscal Year Ending Dec.
2012

Fiscal Year Ending Dec.
2011

Fiscal Year Ending Dec.
2010

Fiscal Year Ending Dec.
2009

Fiscal Year Ending Dec.
2008

Fiscal Year Ending Dec.
2007

Fiscal Year Ending Dec.
2006

Fiscal Year Ending Dec.
2005

Fiscal Year Ending Dec.
2004

Fiscal Year Ending Dec.
2003

Fiscal Year Ending Dec.
2002

Fiscal Year Ending Dec.
2001