Koproski Family Foundation

Stamford, CT
Tax-exempt since May 1992
EIN: 22-6561293

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.

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. 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

$471

Expenses

$36,933

Net Income

-$36,462

Net Assets

$224,192

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$471	100%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$35,525	96.2%
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	$224,192
Total Liabilities	$0
Net Assets	$224,192

Compensation

Key Employees and Officers	Compensation	Other
Alexander Koproski (Trustee)	$0	$0
Patricia Koproski (Trustee)	$0	$0

990-PF

Filed on May 19, 2025

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2023

Revenue

$548

Expenses

$45,856

Net Income

-$45,308

Net Assets

$260,654

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$548	100%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$42,347	92.3%
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	$260,654
Total Liabilities	$0
Net Assets	$260,654

Compensation

Key Employees and Officers	Compensation	Other
Alexander Koproski (Trustee)	$0	$0
Patricia Koproski (Trustee)	$0	$0

990-PF

Filed on April 1, 2024

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2022

Revenue

$614

Expenses

$33,410

Net Income

-$32,796

Net Assets

$305,962

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$614	100%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$32,059	96.0%
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	$305,962
Total Liabilities	$0
Net Assets	$305,962

Compensation

Key Employees and Officers	Compensation	Other
Alexander Koproski (Trustee)	$0	$0
Patricia Koproski (Trustee)	$0	$0

990-PF

Filed on March 7, 2023

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2021

Revenue

$4,145

Expenses

$13,510

Net Income

-$9,365

Net Assets

$338,758

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$4,145	100%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$12,060	89.3%
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	$338,758
Total Liabilities	$0
Net Assets	$338,758

Compensation

Key Employees and Officers	Compensation	Other
Alexander Koproski (Trustee)	$0	$0
Patricia Koproski (Trustee)	$0	$0

990-PF

Filed on March 7, 2022

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2020

Revenue

$3,649

Expenses

$143,350

Net Income

-$139,701

Net Assets

$341,774

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$3,649	100%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$141,875	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	$341,775
Total Liabilities	$1
Net Assets	$341,774

Compensation

Key Employees and Officers	Compensation	Other
Alexander Koproski (Trustee)	$0	$0
Patricia Koproski (Trustee)	$0	$0

990-PF

Filed on March 4, 2021

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2019

Revenue

$665,404

Expenses

$180,228

Net Income

$485,176

Net Assets

$495,188

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$6,610	1.0%
Interest Revenue	$1,274	0.2%
Dividends	$0
Sales of Assets	$638,354	95.9%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$157,151	87.2%
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	$495,188
Total Liabilities	$0
Net Assets	$495,188

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

PDF (2 of 2)

Fiscal Year Ending Dec.
2015

Revenue

$25,202

Expenses

$14,042

Net Income

$11,160

Net Assets

$17,980

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$2	0.0%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$4,995	35.6%
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	$27,730
Total Liabilities	$9,750
Net Assets	$17,980

990-PF

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

PDF

Fiscal Year Ending Dec.
2014

Revenue

$25,201

Expenses

$31,812

Net Income

-$6,611

Net Assets

$6,820

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$1	0.0%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$825	2.6%
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	$16,570
Total Liabilities	$9,750
Net Assets	$6,820

990-PF

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

PDF

Fiscal Year Ending Dec.
2013

Revenue

$27,307

Expenses

$44,407

Net Income

-$17,100

Net Assets

$13,431

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$7	0.0%
Dividends	$0
Sales of Assets	$0
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$25,652	57.8%
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	$23,181
Total Liabilities	$9,750
Net Assets	$13,431

990-PF

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

PDF

Fiscal Year Ending Dec.
2012

Revenue

$26,012

Expenses

$45,067

Net Income

-$19,055

Net Assets

$30,531

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$14	0.1%
Dividends	$0
Sales of Assets	$0
Other Income	$798	3.1%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$25,195	55.9%
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	$40,281
Total Liabilities	$9,750
Net Assets	$30,531

990-PF

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

PDF

Fiscal Year Ending Dec.
2011

Revenue

$28,021

Expenses

$52,793

Net Income

-$24,772

Net Assets

$49,586

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$9	0.0%
Dividends	$0
Sales of Assets	$0
Other Income	$3,712	13.2%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$28,701	54.4%
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	$59,336
Total Liabilities	$9,750
Net Assets	$49,586

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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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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Raw filing data. Includes EINs and summary financials as structured data.
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Updated April 20, 2026

Koproski Family Foundation

Organization summary

Type of Nonprofit

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. 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

990-PF

Fiscal Year Ending Dec. 2010

No Extracted Financial Data

Document Links

990-PF

Fiscal Year Ending Dec. 2009

No Extracted Financial Data

Document Links

990-PF

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.
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