The Mark And Jane Wilf Family Foundation Inc

  • Short Hills, NJ
  • Tax exemption issued: March 2007
  • EIN: 75-3224210

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.

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. Duplicate download links may indicate a resubmission or amendment to this organization's original return. Organizations with gross receipts of less than $50,000 can file the form 990-N postcard filing, which doesn’t include financial details. All Form 990 data is from the IRS.

Fiscal Year Ending Dec.
2025

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$12,741,268
Expenses
$2,241,764
Net Income
$10,499,504
Net Assets
$53,177,832
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,067,693
24.1%
Interest Revenue $7
0.0%
Dividends $1,109,587
8.7%
Sales of Assets $8,563,981
67.2%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $2,240,764
100.0%
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 $53,177,832
Total Liabilities $0
Net Assets $53,177,832
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (President & Trustee) $0 $0
Jane Wilf (Vice President & Trustee) $0 $0
Zygmunt Wilf (Treasurer, Secretary & Trustee) $0 $0
Steven Wilf (Trustee) $0 $0
Daniel Wilf (Trustee) $0 $0
Rachel S Wilf (Trustee) $0 $0
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Document Links

990-PF
Filed on Aug. 10, 2026

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

View Filing
XML

Fiscal Year Ending Dec.
2024

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$3,008,027
Expenses
$1,725,189
Net Income
$1,282,838
Net Assets
$48,590,566
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $1,923,532
63.9%
Interest Revenue $1,275
0.0%
Dividends $1,043,920
34.7%
Sales of Assets -$108,700
Other Income $148,000
4.9%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $1,724,464
100.0%
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 $48,590,566
Total Liabilities $0
Net Assets $48,590,566
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (President & Trustee) $0 $0
Jane Wilf (Vice President & Trustee) $0 $0
Zygmunt Wilf (Treasurer, Secretary & Trustee) $0 $0
Steven Wilf (Trustee) $0 $0
Daniel Wilf (Trustee) $0 $0
Rachel S Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on July 28, 2025

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$3,619,924
Expenses
$1,765,724
Net Income
$1,854,200
Net Assets
$39,460,056
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,064,320
84.7%
Interest Revenue $5,388
0.1%
Dividends $978,792
27.0%
Sales of Assets -$428,576
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $1,765,724
100%
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 $39,460,056
Total Liabilities $0
Net Assets $39,460,056
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (President & Trustee) $0 $0
Jane Wilf (Vice President & Trustee) $0 $0
Zygmunt Wilf (Treasurer, Secretary & Trustee) $0 $0
Steven Wilf (Trustee) $0 $0
Daniel Wilf (Trustee) $0 $0
Rachel S Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on Oct. 15, 2024

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$3,600,579
Expenses
$1,053,771
Net Income
$2,546,808
Net Assets
$30,807,877
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $2,933,640
81.5%
Interest Revenue $4,895
0.1%
Dividends $455,320
12.6%
Sales of Assets $206,474
5.7%
Other Income $250
0.0%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $761,271
72.2%
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 $30,807,877
Total Liabilities $0
Net Assets $30,807,877
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (President & Trustee) $0 $0
Jane Wilf (Vice President & Trustee) $0 $0
Zygmunt Wilf (Treasurer, Secretary & Trustee) $0 $0
Steven Wilf (Trustee) $0 $0
Daniel Wilf (Trustee) $0 $0
Rachel S Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 11, 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
$4,116,392
Expenses
$776,196
Net Income
$3,340,196
Net Assets
$29,491,078
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,421,530
83.1%
Interest Revenue $404
0.0%
Dividends $369,179
9.0%
Sales of Assets $325,279
7.9%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $473,446
61.0%
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 $29,491,078
Total Liabilities $0
Net Assets $29,491,078
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee & President) $0 $0
Jane Wilf (Trustee & Vice President) $0 $0
Zygmunt Wilf (Trustee, Secretary & Treasurer) $0 $0
Steven Wilf (Trustee) $0 $0
Daniel Wilf (Trustee) $0 $0
Rachel S Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 7, 2022

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$13,226,268
Expenses
$376,121
Net Income
$12,850,147
Net Assets
$26,150,881
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $4,985,422
37.7%
Interest Revenue $95
0.0%
Dividends $195,042
1.5%
Sales of Assets $8,035,709
60.8%
Other Income $10,000
0.1%
Notable Expenses Percent of Total Expenses
Charitable Disbursements $365,581
97.2%
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 $26,150,882
Total Liabilities $1
Net Assets $26,150,881
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee & President) $0 $0
Jane Wilf (Trustee & Vice President) $0 $0
Zygmunt Wilf (Trustee, Secretary & Treasurer) $0 $0
Steven Wilf (Trustee) $0 $0
Daniel Wilf (Trustee) $0 $0
Rachel S Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 15, 2021

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

View Filing
XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$3,401,314
Expenses
$459,142
Net Income
$2,942,172
Net Assets
$13,300,734
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,510,791
> 100%
Interest Revenue $2,420
0.1%
Dividends $439,569
12.9%
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $442,998
96.5%
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 $13,300,735
Total Liabilities $1
Net Assets $13,300,734
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee & President) $0 $0
Jane Wilf (Trustee & Vice President) $0 $0
Zygmunt Wilf (Trustee, Secretary & Treasurer) $0 $0
Steven Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on Sept. 11, 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
$2,474,300
Expenses
$721,056
Net Income
$1,753,244
Net Assets
$10,358,563
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $2,500,200
> 100%
Interest Revenue $3,661
0.1%
Dividends $503,594
20.4%
Sales of Assets -$533,155
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $711,556
98.7%
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 $10,358,563
Total Liabilities $0
Net Assets $10,358,563
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee & President) $0 $0
Jane Wilf (Trustee & Vice President) $0 $0
Zygmunt Wilf (Trustee, Secretary & Treasurer) $0 $0
Steven Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on June 20, 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
$3,491,198
Expenses
$595,686
Net Income
$2,895,512
Net Assets
$8,605,319
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,200,000
91.7%
Interest Revenue $952
0.0%
Dividends $269,413
7.7%
Sales of Assets $20,833
0.6%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $593,335
99.6%
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 $8,605,319
Total Liabilities $0
Net Assets $8,605,319
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee & President) $0 $0
Jane Wilf (Trustee & Vice President) $0 $0
Zygmunt Wilf (Trustee, Secretary & Treasurer) $0 $0
Steven Wilf (Trustee) $0 $0
+ View more people

Document Links

990-PF
Filed on June 29, 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
$2,224,876
Expenses
$574,217
Net Income
$1,650,659
Net Assets
$5,709,807
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $2,000,000
89.9%
Interest Revenue $8
0.0%
Dividends $100,665
4.5%
Sales of Assets $124,203
5.6%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $571,896
99.6%
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 $5,709,807
Total Liabilities $0
Net Assets $5,709,807
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee) $0 $0
Jane Wilf (Trustee) $0 $0
Zygmunt Wilf (Trustee) $0 $0

Document Links

990-PF
Filed on June 6, 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
$1,073,972
Expenses
$200,989
Net Income
$872,983
Net Assets
$4,059,148
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $1,000,000
93.1%
Interest Revenue $95,697
8.9%
Dividends $0
Sales of Assets -$21,725
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $199,045
99.0%
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 $4,060,061
Total Liabilities $913
Net Assets $4,059,148
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee) $0 $0
Jane Wilf (Trustee) $0 $0
Zygmunt Wilf (Trustee) $0 $0

Document Links

990-PF
Filed on Nov. 15, 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
$652,264
Expenses
$448,595
Net Income
$203,669
Net Assets
$3,185,805
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $561,440
86.1%
Interest Revenue $90,593
13.9%
Dividends $0
Sales of Assets $231
0.0%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $447,662
99.8%
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 $3,186,013
Total Liabilities $208
Net Assets $3,185,805
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee) $0 $0
Jane Wilf (Trustee) $0 $0
Zygmunt Wilf (Trustee) $0 $0

Document Links

990-PF
Filed on May 14, 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
$798,417
Expenses
$407,756
Net Income
$390,661
Net Assets
$2,982,136
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $556,516
69.7%
Interest Revenue $76,724
9.6%
Dividends $0
Sales of Assets $165,177
20.7%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $405,270
99.4%
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 $2,983,354
Total Liabilities $1,218
Net Assets $2,982,136
Compensation
Key Employees and Officers Compensation Other
Mark Wilf (Trustee) $0 $0
Jane Wilf (Trustee) $0 $0
Zygmunt Wilf (Trustee) $0 $0

Document Links

990-PF
Filed on May 15, 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
$103,409
Expenses
$115,206
Net Income
-$11,797
Net Assets
$2,591,475
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $87,789
84.9%
Dividends $0
Sales of Assets $15,620
15.1%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $114,106
99.0%
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 $2,592,518
Total Liabilities $1,043
Net Assets $2,591,475

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
$580,234
Expenses
$95,099
Net Income
$485,135
Net Assets
$2,603,272
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $481,025
82.9%
Interest Revenue $98,546
17.0%
Dividends $0
Sales of Assets $663
0.1%
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $94,080
98.9%
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 $2,604,272
Total Liabilities $1,000
Net Assets $2,603,272

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

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

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 financial information from tax returns processed by the IRS since the 2012 calendar years, as well as data extracted from digital filings. IRS summary data also includes limited 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 for 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?

Most organizations that have been recognized as tax exempt by the IRS have to file the 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 the 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," which does not contain financial details. Churches are not required to file Form 990.

Nonprofit Explorer has organizations that are claiming tax exemption in any of the 27 subsections of the 501(c) section of the tax code. Taxable trusts and private foundations that are required to file a form 990PF are also included.

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 Employer Identification Numbers and summary financials as structured data.
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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.

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