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Phi Delta Theta Fraternity

Colorado Gamma House Corp
  • Aurora, CO
  • Tax-exempt since Oct. 1940
  • EIN: 84-1278584

Organization summary

Type of Nonprofit

Designated as a Social and recreational clubs.

Donations to this organization are not tax deductible.

Summary charts: organization finances over time

Revenue
$206k (2025)

Expenses
$160k (2025)

Total Assets
$1.13M (2025)

Total Liabilities
$428k (2025)

Source: Form 990 tax filings from 2011 to 2025

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 May
2025

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$206,048
Expenses
$160,283
Net Income
$45,765
Net Assets
$704,737
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $206,040
100.0%
Investment Income $8
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,132,762
Total Liabilities $428,025
Net Assets $704,737
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Related Other
Nathan Flynn (President) $0 $0 $0
Austin Hayes (Vice President) $0 $0 $0
Eric Lawson (Member) $0 $0 $0
Keith Lopez (Ex Officio, Cab) $0 $0 $0
Isaac Scott (Member) $0 $0 $0
Robert Gilliam (Member) $0 $0 $0
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Document Links

990
Filed on Nov. 7, 2025

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending May
2024

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$189,083
Expenses
$139,155
Net Income
$49,928
Net Assets
$658,972
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $189,073
100.0%
Investment Income $10
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,132,716
Total Liabilities $473,744
Net Assets $658,972
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Related Other
Nathan Flynn (President) $0 $0 $0
Austin Hayes (Vice President) $0 $0 $0
Eric Lawson (Member) $0 $0 $0
Keith Lopez (Ex Officio, Cab) $0 $0 $0
Isaac Scott (Member) $0 $0 $0
Robert Gilliam (Member) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 8, 2024

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending May
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$170,270
Expenses
$141,197
Net Income
$29,073
Net Assets
$609,044
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $170,021
99.9%
Investment Income $105
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $144
0.1%
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,129,325
Total Liabilities $520,281
Net Assets $609,044
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Related Other
Nathan Flynn (President) $0 $0 $0
Austin Hayes (Vice President) $0 $0 $0
Eric Lawson (Member) $0 $0 $0
Keith Lopez (Ex Officio, Cab) $0 $0 $0
Isaac Scott (Member) $0 $0 $0
Robert Gilliam (Member) $0 $0 $0
+ View more people

Document Links

990
Filed on Aug. 29, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending May
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$305,055
Expenses
$132,801
Net Income
$172,254
Net Assets
$579,971
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,500
0.5%
Program Services $159,365
52.2%
Investment Income $12
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $144,178
47.3%
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,140,713
Total Liabilities $560,742
Net Assets $579,971
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Related Other
Nathan Flynn (President) $0 $0 $0
Austin Hayes (Vice President) $0 $0 $0
Eric Lawson (Member) $0 $0 $0
Keith Lopez (Ex Officio, Cab) $0 $0 $0
Isaac Scott (Member) $0 $0 $0
Robert Gilliam (Member) $0 $0 $0
+ View more people

Document Links

990
Filed on March 13, 2023

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending May
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$155,449
Expenses
$118,738
Net Income
$36,711
Net Assets
$407,717
Notable Sources of Revenue Percent of Total Revenue
Contributions $1,000
0.6%
Program Services $154,405
99.3%
Investment Income $44
0.0%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $1,064,772
Total Liabilities $657,055
Net Assets $407,717
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Related Other
Nathan Flynn (President) $0 $0 $0
Austin Hayes (Vice President) $0 $0 $0
Eric Lawson (Member) $0 $0 $0
Keith Lopez (Ex Officio, Cab) $0 $0 $0
Isaac Scott (Member) $0 $0 $0
+ View more people

Document Links

990
Filed on Nov. 11, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending May
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$134,024
Expenses
$182,709
Net Income
-$48,685
Net Assets
$371,006
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $133,940
99.9%
Investment Income $84
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $948,644
Total Liabilities $577,638
Net Assets $371,006
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0
Compensation
Key Employees and Officers Compensation Related Other
Nathan Flynn (President) $0 $0 $0
Austin Hayes (Vice President) $0 $0 $0
Eric Lawson (Member) $0 $0 $0
Keith Lopez (Ex Officio, Cab) $0 $0 $0
+ View more people

Document Links

990
Filed on March 31, 2021

Primary tax return for a nonprofit’s activities, finances, and governance

View Filing
XML

Fiscal Year Ending May
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$143,327
Expenses
$76,692
Net Income
$66,635
Net Assets
$419,691
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $143,255
99.9%
Investment Income $72
0.1%
Bond Proceeds $0
Royalties $0
Rental Property Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $0
Notable Expenses Percent of Total Expenses
Executive Compensation $0
Professional Fundraising Fees $0
Other Salaries and Wages $0
Assets/Debt
Total Assets $562,275
Total Liabilities $142,584
Net Assets $419,691
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2018

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$138,012
Expenses
$78,273
Net Income
$59,739
Net Assets
$342,302
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $77
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $137,935
99.9%
Assets/Debt
Total Assets $497,857
Total Liabilities $155,555
Net Assets $342,302
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

No Document Links

The IRS has provided extracted financial data for this filing, but has not yet released the source documents.

Fiscal Year Ending May
2017

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$135,277
Expenses
$63,428
Net Income
$71,849
Net Assets
$282,563
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $42
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $135,235
100.0%
Assets/Debt
Total Assets $450,336
Total Liabilities $167,773
Net Assets $282,563
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2016

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$127,405
Expenses
$93,844
Net Income
$33,561
Net Assets
$210,714
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $0
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $127,405
100%
Assets/Debt
Total Assets $389,994
Total Liabilities $179,280
Net Assets $210,714
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2015

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$130,465
Expenses
$79,772
Net Income
$50,693
Net Assets
$177,153
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $7
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $130,458
100.0%
Assets/Debt
Total Assets $371,066
Total Liabilities $193,913
Net Assets $177,153
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2014

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$44,889
Expenses
$65,038
Net Income
-$20,149
Net Assets
$126,460
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $39
0.1%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $44,850
99.9%
Assets/Debt
Total Assets $331,168
Total Liabilities $204,708
Net Assets $126,460
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2013

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$46,398
Expenses
$58,819
Net Income
-$12,421
Net Assets
$146,609
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $0
Investment Income $98
0.2%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $46,300
99.8%
Assets/Debt
Total Assets $359,920
Total Liabilities $213,311
Net Assets $146,609
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2012

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$60,701
Expenses
$70,936
Net Income
-$10,235
Net Assets
$159,030
Notable Sources of Revenue Percent of Total Revenue
Contributions $2,200
3.6%
Program Services $0
Investment Income $1
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $58,500
96.4%
Assets/Debt
Total Assets $297,921
Total Liabilities $138,891
Net Assets $159,030
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2011

Extracted Financial Data

Extracted Financial Data from 990-EZ
Revenue
$64,976
Expenses
$77,310
Net Income
-$12,334
Net Assets
$169,265
Notable Sources of Revenue Percent of Total Revenue
Contributions $6,570
10.1%
Program Services $0
Investment Income $6
0.0%
Net Fundraising $0
Sales of Assets $0
Net Inventory Sales $0
Other Revenue $58,400
89.9%
Assets/Debt
Total Assets $316,400
Total Liabilities $147,135
Net Assets $169,265
Club or Co-Op Income
Initiation Fees & Contributions $0
Income From Public Use of Club Facilities $0

Document Links

990-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
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-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
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-EZ

Short form tax return for a nonprofit’s activities, finances, and governance

PDF
PDF (2 of 2)

Fiscal Year Ending May
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

Primary tax return for a nonprofit’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

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
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

Primary tax return for a nonprofit’s activities, finances, and governance

PDF

Fiscal Year Ending May
2005

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

Primary 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.

API

The data powering this website is available programmatically, via an API. Read the API documentation »

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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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