Mahaffey Family Foundation

Mark T Mahaffey Et Al Ttee

St Petersburg, FL
Tax-exempt since July 2006
EIN: 59-7261732

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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

$62.3k (2024)

Expenses

$85.9k (2024)

Total Assets

$546k (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

Revenue

$62,306

Expenses

$85,884

Net Income

-$23,578

Net Assets

$546,276

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$1,955	3.1%
Dividends	$21,431	34.4%
Sales of Assets	$38,920	62.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$80,800	94.1%
Compensation of Officers*	$3,056	3.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$546,276
Total Liabilities	$0
Net Assets	$546,276

Compensation

Key Employees and Officers	Compensation	Other
Hancock Whitney Bank (Trustee)	$3,056	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on Nov. 13, 2025

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

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Schedules ▼

XML

Fiscal Year Ending Dec.
2023

Revenue

$27,420

Expenses

$84,536

Net Income

-$57,116

Net Assets

$569,854

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$2,231	8.1%
Dividends	$21,286	77.6%
Sales of Assets	$3,903	14.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$80,000	94.6%
Compensation of Officers*	$3,086	3.7%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$569,854
Total Liabilities	$0
Net Assets	$569,854

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$3,086	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on July 17, 2024

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

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XML

Fiscal Year Ending Dec.
2022

Revenue

$42,535

Expenses

$94,743

Net Income

-$52,208

Net Assets

$626,843

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$4,163	9.8%
Dividends	$17,977	42.3%
Sales of Assets	$20,395	47.9%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$90,000	95.0%
Compensation of Officers*	$3,443	3.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$626,843
Total Liabilities	$0
Net Assets	$626,843

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$3,443	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on May 19, 2023

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

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XML

Fiscal Year Ending Dec.
2021

Revenue

$89,232

Expenses

$109,675

Net Income

-$20,443

Net Assets

$681,557

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$4,828	5.4%
Dividends	$17,037	19.1%
Sales of Assets	$66,287	74.3%
Other Income	$1,080	1.2%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$105,000	95.7%
Compensation of Officers*	$3,675	3.4%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$681,557
Total Liabilities	$0
Net Assets	$681,557

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$3,675	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on May 5, 2022

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

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XML

Fiscal Year Ending Dec.
2020

Revenue

$29,713

Expenses

$85,064

Net Income

-$55,351

Net Assets

$701,999

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$188	0.6%
Dividends	$22,667	76.3%
Sales of Assets	$6,788	22.8%
Other Income	$70	0.2%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$80,000	94.0%
Compensation of Officers*	$3,577	4.2%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$702,000
Total Liabilities	$1
Net Assets	$701,999

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$3,577	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on May 21, 2021

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

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XML

Fiscal Year Ending Dec.
2019

Revenue

$64,850

Expenses

$95,178

Net Income

-$30,328

Net Assets

$757,350

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$6,803	10.5%
Dividends	$18,817	29.0%
Sales of Assets	$39,230	60.5%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$90,000	94.6%
Compensation of Officers*	$3,913	4.1%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$757,351
Total Liabilities	$1
Net Assets	$757,350

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$3,913	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on April 29, 2020

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

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PDF XML

Fiscal Year Ending Dec.
2018

Revenue

$82,582

Expenses

$96,321

Net Income

-$13,739

Net Assets

$787,606

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$6,841	8.3%
Dividends	$21,043	25.5%
Sales of Assets	$54,698	66.2%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$90,000	93.4%
Compensation of Officers*	$4,017	4.2%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$787,606
Total Liabilities	$0
Net Assets	$787,606

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$4,017	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on April 22, 2019

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

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Fiscal Year Ending Dec.
2017

Revenue

$92,600

Expenses

$86,042

Net Income

$6,558

Net Assets

$801,758

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$6,520	7.0%
Dividends	$22,758	24.6%
Sales of Assets	$63,322	68.4%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$80,000	93.0%
Compensation of Officers*	$4,155	4.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$801,758
Total Liabilities	$0
Net Assets	$801,758

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$4,155	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on April 16, 2018

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

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XML

Fiscal Year Ending Dec.
2016

Revenue

$80,550

Expenses

$74,541

Net Income

$6,009

Net Assets

$796,177

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$5,175	6.4%
Dividends	$23,344	29.0%
Sales of Assets	$52,031	64.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$68,000	91.2%
Compensation of Officers*	$4,110	5.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$796,177
Total Liabilities	$0
Net Assets	$796,177

Compensation

Key Employees and Officers	Compensation	Other
Sabal Trust Company (Trustee)	$4,110	$0
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on May 22, 2017

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

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Fiscal Year Ending Dec.
2015

Revenue

$66,324

Expenses

$74,689

Net Income

-$8,365

Net Assets

$790,078

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$4,590	6.9%
Dividends	$24,848	37.5%
Sales of Assets	$36,886	55.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$68,000	91.0%
Compensation of Officers*	$4,161	5.6%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$790,078
Total Liabilities	$0
Net Assets	$790,078

Compensation

Key Employees and Officers	Compensation	Other
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on April 21, 2016

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

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Fiscal Year Ending Dec.
2014

Revenue

$90,507

Expenses

$74,191

Net Income

$16,316

Net Assets

$798,443

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$511	0.6%
Dividends	$26,921	29.7%
Sales of Assets	$63,075	69.7%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$68,000	91.7%
Compensation of Officers*	$4,301	5.8%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$798,443
Total Liabilities	$0
Net Assets	$798,443

Compensation

Key Employees and Officers	Compensation	Other
Mark T Mahaffey (Ceo)	$0	$0

990-PF

Filed on May 15, 2015

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

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Fiscal Year Ending Dec.
2013

Revenue

$85,819

Expenses

$68,237

Net Income

$17,582

Net Assets

$782,127

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$201	0.2%
Dividends	$28,446	33.1%
Sales of Assets	$57,172	66.6%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$60,000	87.9%
Compensation of Officers*	$4,016	5.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$782,127
Total Liabilities	$0
Net Assets	$782,127

990-PF

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

PDF

Fiscal Year Ending Dec.
2012

Revenue

$85,243

Expenses

$55,053

Net Income

$30,190

Net Assets

$765,062

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$28,091	33.0%
Sales of Assets	$57,152	67.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$48,000	87.2%
Compensation of Officers*	$3,816	6.9%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$765,063
Total Liabilities	$1
Net Assets	$765,062

990-PF

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

PDF

Fiscal Year Ending Dec.
2011

Revenue

$66,653

Expenses

$55,856

Net Income

$10,797

Net Assets

$735,532

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$8,000	12.0%
Interest Revenue	$0
Dividends	$27,335	41.0%
Sales of Assets	$31,318	47.0%
Other Income	$0

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$48,000	85.9%
Compensation of Officers*	$3,614	6.5%
* Officer compensation may be included in charitable disbursements, so Percent of Total Expenses may add up to greater than 100%.

Assets/Debt
Total Assets	$735,533
Total Liabilities	$1
Net Assets	$735,532

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Mahaffey Family Foundation

Organization summary

Type of Nonprofit

Summary charts: organization finances over time

Revenue $62.3k (2024)

Expenses $85.9k (2024)

Total Assets $546k (2024)

Total Liabilities $0 (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

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2017

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2015

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2014

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

Fiscal Year Ending Dec. 2013

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Document Links

990-PF

Revenue

$62.3k (2024)

Expenses

$85.9k (2024)

Total Assets

$546k (2024)

Total Liabilities

$0 (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