Robert T Wilson Foundation

Flagstaff, AZ
Tax exemption issued: July 1955
EIN: 86-0264036

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. 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

Revenue

$8,132

Expenses

$6,079

Net Income

$2,053

Net Assets

$146,252

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$8,132	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$2,726	44.8%
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	$146,252
Total Liabilities	$0
Net Assets	$146,252

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on July 30, 2026

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

View Filing

Schedules ▼

XML

Fiscal Year Ending Dec.
2024

Revenue

$7,620

Expenses

$7,217

Net Income

$403

Net Assets

$144,199

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$7,620	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$2,815	39.0%
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	$144,199
Total Liabilities	$0
Net Assets	$144,199

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on Oct. 8, 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

$11,782

Expenses

$8,634

Net Income

$3,148

Net Assets

$143,792

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$11,782	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$2,335	27.0%
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	$143,792
Total Liabilities	$0
Net Assets	$143,792

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on June 27, 2024

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

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2022

Revenue

$23,778

Expenses

$7,868

Net Income

$15,910

Net Assets

$140,644

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$23,778	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$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	$140,644
Total Liabilities	$0
Net Assets	$140,644

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on Nov. 14, 2023

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2021

Revenue

$13,969

Expenses

$8,447

Net Income

$5,522

Net Assets

$124,734

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$13,969	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$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	$124,734
Total Liabilities	$0
Net Assets	$124,734

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on Sept. 30, 2022

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

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2020

Revenue

$6,333

Expenses

$6,767

Net Income

-$434

Net Assets

$119,211

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$6,333	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$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	$119,212
Total Liabilities	$1
Net Assets	$119,211

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on Nov. 15, 2021

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

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XML

Fiscal Year Ending Dec.
2019

Revenue

$21,554

Expenses

$17,533

Net Income

$4,021

Net Assets

$119,645

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$21,554	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$4,813	27.5%
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	$119,646
Total Liabilities	$1
Net Assets	$119,645

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on Nov. 17, 2020

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

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XML

Fiscal Year Ending Dec.
2018

Revenue

$25,170

Expenses

$25,034

Net Income

$136

Net Assets

$115,625

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$4,000	15.9%
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$21,170	84.1%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$15,312	61.2%
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	$115,625
Total Liabilities	$0
Net Assets	$115,625

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on Oct. 30, 2019

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

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2017

Revenue

$26,200

Expenses

$16,545

Net Income

$9,655

Net Assets

$115,489

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$26,200	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$7,827	47.3%
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	$115,489
Total Liabilities	$0
Net Assets	$115,489

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretary)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on March 14, 2018

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2016

Revenue

$20,500

Expenses

$2,140,106

Net Income

-$2,119,606

Net Assets

$105,834

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$4	0.0%
Dividends	$0
Sales of Assets	$0
Other Income	$20,496	100.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$2,061,990	96.3%
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	$105,834
Total Liabilities	$0
Net Assets	$105,834

Compensation

Key Employees and Officers	Compensation	Other
Susan Horst (Director)	$0	$0
Winnie Hanseth (Secretarytreasurer)	$0	$0
Amanda Wilson (Vice President)	$0	$0

990-PF

Filed on March 16, 2017

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

View Filing

Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2015

Revenue

$29,896

Expenses

$87,050

Net Income

-$57,154

Net Assets

$2,225,440

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$11	0.0%
Dividends	$0
Sales of Assets	$0
Other Income	$29,885	100.0%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$12,694	14.6%
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	$2,225,440
Total Liabilities	$0
Net Assets	$2,225,440

Compensation

Key Employees and Officers	Compensation	Other
Winnie Hanseth (Secretarytreasurer)	$0	$0
Amanda Wilson (Vice President)	$0	$0
Sonya Mcdavid (President)	$0	$0
Robert Currey Wilson (Director)	$0	$0
Susan Horst (Director)	$0	$0

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990-PF

Filed on Feb. 29, 2016

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

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PDF XML

Fiscal Year Ending Dec.
2014

Revenue

$67,641

Expenses

$153,525

Net Income

-$85,884

Net Assets

$2,282,594

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$0
Dividends	$0
Sales of Assets	$0
Other Income	$67,641	100%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$77,507	50.5%
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	$2,282,594
Total Liabilities	$0
Net Assets	$2,282,594

Compensation

Key Employees and Officers	Compensation	Other
Winnie Hanseth (Secretarytreasurer)	$0	$0
Amanda Wilson (Vice President)	$0	$0
Sonya Mcdavid (President)	$0	$0
Robert Currey Wilson (Director)	$0	$0
Susan Horst (Director)	$0	$0

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990-PF

Filed on March 24, 2015

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

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Fiscal Year Ending Dec.
2013

Revenue

$49,570

Expenses

$97,529

Net Income

-$47,959

Net Assets

$2,368,478

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$80	0.2%
Dividends	$0
Sales of Assets	$0
Other Income	$49,490	99.8%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$11,298	11.6%
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	$2,368,478
Total Liabilities	$0
Net Assets	$2,368,478

Compensation

Key Employees and Officers	Compensation	Other
Winnie Hanseth (Secretarytreasurer)	$0	$0
Amanda Wilson (Vice President)	$0	$0
Sonya Mcdavid (President)	$0	$0
Robert Currey Wilson (Director)	$0	$0
Susan Horst (Director)	$0	$0

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990-PF

Filed on April 28, 2014

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

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Schedules ▼

PDF XML

Fiscal Year Ending Dec.
2012

Revenue

$465,756

Expenses

$554,457

Net Income

-$88,701

Net Assets

$2,416,436

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$5	0.0%
Dividends	$7,769	1.7%
Sales of Assets	$395,854	85.0%
Other Income	$62,128	13.3%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$90,772	16.4%
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	$2,416,437
Total Liabilities	$1
Net Assets	$2,416,436

990-PF

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

PDF

PDF (2 of 2)

Fiscal Year Ending Dec.
2011

Revenue

$102,221

Expenses

$153,172

Net Income

-$50,951

Net Assets

$2,505,138

Notable Sources of Revenue		Percent of Total Revenue
Contributions Received	$0
Interest Revenue	$3	0.0%
Dividends	$11,618	11.4%
Sales of Assets	$0
Other Income	$90,600	88.6%

Notable Expenses		Percent of Total Expenses
Charitable Disbursements	$63,340	41.4%
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	$2,891,286
Total Liabilities	$386,148
Net Assets	$2,505,138

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

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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.

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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.

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Updated October 22, 2026

Robert T Wilson Foundation

Organization summary

Type of Nonprofit

Tax Filings by Year

Fiscal Year Ending Dec. 2025

Extracted Financial Data

Extracted Financial Data from Form 990-PF

Compensation

Document Links

990-PF

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

Compensation

Fiscal Year Ending Dec.
2025

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