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International Association For The Philosophy Of Mathematics Inc

  • Notre Dame, IN
  • Tax-exempt since Sept. 2012
  • EIN: 45-0948950

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: Educational Institutions and Related Activities / Professional Societies, Associations (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$0 (2024)

Expenses
$520 (2024)

Total Assets
$302 (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

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$0
Expenses
$520
Net Income
-$520
Net Assets
$302
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $0
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $302
Total Liabilities $0
Net Assets $302
Compensation
Key Employees and Officers Compensation Other
Richard Zach (Vice President) $0 $0
Elaine Landry (Director) $0 $0
Patricia Blanchette (Director) $0 $0
Otavio Bueno (President) $0 $0
Graham Leach Krouse (Treasurer) $0 $0
Oystein Linnebo (Director) $0 $0
Penelope Maddy (Director) $0 $0
Teresa Kouri Kissel (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 17, 2025

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

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$40
Expenses
$140
Net Income
-$100
Net Assets
$822
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $40
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $822
Total Liabilities $0
Net Assets $822
Compensation
Key Employees and Officers Compensation Other
Richard Zach (Vice President) $0 $0
Elaine Landry (Director) $0 $0
Patricia Blanchette (Director) $0 $0
Otavio Bueno (President) $0 $0
Graham Leach Krouse (Treasurer) $0 $0
Oystein Linnebo (Director) $0 $0
Penelope Maddy (Director) $0 $0
Teresa Kouri Kissel (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 15, 2024

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

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$180
Expenses
$525
Net Income
-$345
Net Assets
$922
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $180
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $922
Total Liabilities $0
Net Assets $922
Compensation
Key Employees and Officers Compensation Other
Richard Zach (President) $0 $0
Elaine Landry (Director) $0 $0
Patricia Blanchette (Vice President) $0 $0
Otavio Bueno (Director) $0 $0
Graham Leach Krouse (Treasurer) $0 $0
Oystein Linnebo (Director) $0 $0
Penelope Maddy (Director) $0 $0
Stewart Shapiro (Director) $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
$120
Expenses
$648
Net Income
-$528
Net Assets
$1,267
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $120
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $1,267
Total Liabilities $0
Net Assets $1,267
Compensation
Key Employees and Officers Compensation Other
Richard Zach (President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Vice President) $0 $0
Otavio Bueno (Director) $0 $0
Graham Leach Krouse (Director) $0 $0
Oystein Linnebo (Director) $0 $0
Penelope Maddy (Director) $0 $0
Stewart Shapiro (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 14, 2022

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

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$156
Expenses
$520
Net Income
-$364
Net Assets
$1,794
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $156
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $18
3.5%
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 $1,795
Total Liabilities $1
Net Assets $1,794
Compensation
Key Employees and Officers Compensation Other
Richard Zach (President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Vice President) $0 $0
Otavio Bueno (Director) $0 $0
Graham Leach Krouse (Director) $0 $0
Oystein Linnebo (Director) $0 $0
Pen Maddy (Director) $0 $0
Stewart Shapiro (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 16, 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
$140
Expenses
$360
Net Income
-$220
Net Assets
$2,158
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $140
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $2,159
Total Liabilities $1
Net Assets $2,158
Compensation
Key Employees and Officers Compensation Other
Richard Zach (President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Vice President) $0 $0
Otavio Bueno (Director) $0 $0
Graham Leach Krouse (Director) $0 $0
Oystein Linnebo (Director) $0 $0
Pen Maddy (Director) $0 $0
Stewart Shapiro (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 16, 2020

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$70
Expenses
$1,166
Net Income
-$1,096
Net Assets
$2,379
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $70
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $2,379
Total Liabilities $0
Net Assets $2,379
Compensation
Key Employees and Officers Compensation Other
Colin Mclarty (President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Vice President) $0 $0
Penelope Maddy (Director) $0 $0
Stewart Shapiro (Director) $0 $0
Cystein Linnebo (Director) $0 $0
Audrey Yap (Director) $0 $0
Richard Zach (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 16, 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
$470
Expenses
$165
Net Income
$305
Net Assets
$3,475
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $470
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $165
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 $3,475
Total Liabilities $0
Net Assets $3,475
Compensation
Key Employees and Officers Compensation Other
Colin Mclarty (President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Vice President) $0 $0
Penelope Maddy (Director) $0 $0
Stuart Shapiro (Director) $0 $0
Oystein Linnebo (Director) $0 $0
Audrey Yap (Director) $0 $0
Richard Zach (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Sept. 4, 2018

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

View Filing
XML

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990-PF
Revenue
$130
Expenses
$397
Net Income
-$267
Net Assets
$3,170
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $130
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $3,170
Total Liabilities $0
Net Assets $3,170
Compensation
Key Employees and Officers Compensation Other
Colin Mclarty (President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Vice President) $0 $0
Penelope Maddy (Director) $0 $0
Stuart Shapiro (Director) $0 $0
Oystein Linnebo (Director) $0 $0
Audrey Yap (Director) $0 $0
Richard Zach (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 9, 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
$1,000
Expenses
$443
Net Income
$557
Net Assets
$3,437
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $1,000
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
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 $3,437
Total Liabilities $0
Net Assets $3,437
Compensation
Key Employees and Officers Compensation Other
Colin Mclarty (President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Vice President) $0 $0
Penelope Maddy (Director) $0 $0
Stuart Shapiro (Director) $0 $0
Oystein Linnebo (Director) $0 $0
Audrey Yap (Director) $0 $0
Richard Zach (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on Nov. 14, 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
$390
Expenses
$603
Net Income
-$213
Net Assets
$2,880
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $390
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $173
28.7%
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 $2,880
Total Liabilities $0
Net Assets $2,880
Compensation
Key Employees and Officers Compensation Other
Michael Detlefsen (President) $0 $0
Colin Mclarty (Vice President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Director) $0 $0
Jessica Carter (Director) $0 $0
Solomon Feferman (Director) $0 $0
Daniel Isaacson (Director) $0 $0
Erich Reck (Director) $0 $0
Gregory Restall (Director) $0 $0
Mathieu Marion (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on July 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
$3,930
Expenses
$837
Net Income
$3,093
Net Assets
$3,093
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,930
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $837
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 $3,093
Total Liabilities $0
Net Assets $3,093
Compensation
Key Employees and Officers Compensation Other
Michael Detlefsen (President) $0 $0
Colin Mclarty (Vice President) $0 $0
Elaine Landry (Treasurer) $0 $0
Patricia Blanchette (Director) $0 $0
Jessica Carter (Director) $0 $0
Solomon Feferman (Director) $0 $0
Daniel Isaacson (Director) $0 $0
Erich Reck (Director) $0 $0
Gregory Restall (Director) $0 $0
+ View more people

Document Links

990-PF
Filed on May 14, 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
$3,447
Expenses
$6,227
Net Income
-$2,780
Net Assets
$0
Notable Sources of Revenue Percent of Total Revenue
Contributions Received $3,447
100%
Interest Revenue $0
Dividends $0
Sales of Assets $0
Other Income $0
Notable Expenses Percent of Total Expenses
Charitable Disbursements $6,227
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 $1
Total Liabilities $1
Net Assets $0

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 990-EZ
Revenue
$5,000
Expenses
$2,220
Net Income
$2,780
Net Assets
$2,780
Notable Sources of Revenue Percent of Total Revenue
Contributions $5,000
100%
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Assets/Debt
Total Assets $2,780
Total Liabilities $0
Net Assets $2,780

Document Links

990-EZ

Short form tax return for a nonprofit’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.

We also link to copies of audits 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?

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

There are 27 nonprofit designations based on the numbered subsections of section 501(c) of the tax code. See the list »

Get the Data

For those interested in acquiring the original data from the source, here’s where our data comes from:

  • Raw filing data. Includes EINs and summary financials as structured data.
  • Exempt Organization profiles. Includes organization names, addresses, etc. You can merge this with the raw filing data using EIN numbers.
  • Form 990 documents. Prior to 2017, these documents were obtained and processed by Public.Resource.org and ProPublica. Bulk PDF downloads since 2017 are available from the IRS.
  • Form 990 documents as XML files. Includes complete filing data (financial details, names of officers, tax schedules, etc.) in machine-readable format. Only available for electronically filed documents. Electronic data released prior to October 2021 is also available through Amazon Web Services.
  • Audits. PDFs of single or program-specific audits for nonprofit organizations that spent $750,000 or more in Federal grant money in a single fiscal year. Available for fiscal year 2015 and later.

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About Nonprofit Explorer

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.

By Andrea Suozzo, Alec Glassford, Ash Ngu and Brandon Roberts.

Design by Jeff Frankl. Additional development by Ken Schwencke, Mike Tigas, and Sisi Wei.

E-file viewer adapted from IRS e-File Viewer by Ben Getson. Code for scraping audit documents adapated from Govwiki.

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