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United Abacus Arithmetic Association

Uaaa
  • La Verne, CA
  • Tax-exempt since Feb. 2013
  • EIN: 32-0362642

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: Education N.E.C. (NTEE)

Donations to this organization are tax deductible.

Summary charts: organization finances over time

Revenue
$104k (2024)

Expenses
$107k (2024)

Total Assets
$69.7k (2024)

Total Liabilities
$0 (2024)

Source: Form 990 tax filings from 2012 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
Revenue
$104,062
Expenses
$107,426
Net Income
-$3,364
Net Assets
$69,714
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $104,062
100%
Investment Income $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 $69,714
Total Liabilities $0
Net Assets $69,714
Compensation
Key Employees and Officers Compensation Related Other
Elaine Lin (Secretary) $0 $0 $0
Carolyn An (President) $0 $0 $0
Melinda An (Coo) $0 $0 $0
Tony Torng (Chairman/Ceo) $0 $0 $0
Hsin Ying Chen (Director) $0 $0 $0
Theresa Lee (Cso) $0 $0 $0
Jack Phone (Director) $0 $0 $0
Charisse Chen (Director) $0 $0 $0
Ross Yang (Cfo) $0 $0 $0
Ralph Jagodka (Vice Chairman) $0 $0 $0
David Phan (Cio) $0 $0 $0
Charlene Chen (Director) $0 $0 $0
Eddie Chin (Director) $0 $0 $0
Jackie Chen (Director) $0 $0 $0
Julie Liu (Director) $0 $0 $0
Kathy Liu (Director) $0 $0 $0
Michael Akers (Director) $0 $0 $0
Royal Chen (Director) $0 $0 $0
Seiya Shaw (Director) $0 $0 $0
Peggy Huang (Advisor) $0 $0 $0
Cindy Chen (Director) $0 $0 $0
Joanna Hsiao (Advisor) $0 $0 $0
Franco Huang (Advisor) $0 $0 $0
Peter Pan (Director) $0 $0 $0
Eric Wang (Director) $0 $0 $0
See filing for compensation of 2 other people →
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Document Links

990
Filed on May 14, 2025

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

View Filing
XML

Fiscal Year Ending Dec.
2023

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$85,436
Expenses
$83,591
Net Income
$1,845
Net Assets
$73,078
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $85,436
100%
Investment Income $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 $73,078
Total Liabilities $0
Net Assets $73,078
Compensation
Key Employees and Officers Compensation Related Other
Elaine Lin (Secretary) $0 $0 $0
Carolyn An (President) $0 $0 $0
Melinda An (Coo) $0 $0 $0
Tony Torng (Chairman/Ceo) $0 $0 $0
Hsin Ying Chen (Director) $0 $0 $0
Theresa Lee (Cso) $0 $0 $0
Jack Phone (Director) $0 $0 $0
Charisse Chen (Director) $0 $0 $0
Ross Yang (Cfo) $0 $0 $0
Ralph Jagodka (Vice Chairman) $0 $0 $0
David Phan (Cio) $0 $0 $0
Charlene Chen (Director) $0 $0 $0
Eddie Chin (Director) $0 $0 $0
Jackie Chen (Director) $0 $0 $0
Julie Liu (Director) $0 $0 $0
Kathy Liu (Director) $0 $0 $0
Michael Akers (Director) $0 $0 $0
Royal Chen (Director) $0 $0 $0
Seiya Shaw (Director) $0 $0 $0
Peggy Huang (Advisor) $0 $0 $0
Cindy Chen (Director) $0 $0 $0
Joanna Hsiao (Advisor) $0 $0 $0
Franco Huang (Advisor) $0 $0 $0
Peter Pan (Director) $0 $0 $0
Eric Wang (Director) $0 $0 $0
See filing for compensation of 2 other people →
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Document Links

990
Filed on April 13, 2024

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

View Filing
XML

Fiscal Year Ending Dec.
2022

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$83,028
Expenses
$93,093
Net Income
-$10,065
Net Assets
$71,233
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $83,028
100%
Investment Income $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 $71,233
Total Liabilities $0
Net Assets $71,233
Compensation
Key Employees and Officers Compensation Related Other
Elaine Lin (Secretary) $0 $0 $0
Carolyn An (President) $0 $0 $0
Melinda An (Coo) $0 $0 $0
Tony Torng (Chairman/Ceo) $0 $0 $0
Hsin Ying Chen (Director) $0 $0 $0
Theresa Lee (Cso) $0 $0 $0
Jack Phone (Director) $0 $0 $0
Charisse Chen (Director) $0 $0 $0
Ross Yang (Cfo) $0 $0 $0
Ralph Jagodka (Vice Chairman) $0 $0 $0
David Phan (Cio) $0 $0 $0
Charlene Chen (Director) $0 $0 $0
Eddie Chin (Director) $0 $0 $0
Jackie Chen (Director) $0 $0 $0
Julie Liu (Director) $0 $0 $0
Kathy Liu (Director) $0 $0 $0
Michael Akers (Director) $0 $0 $0
Royal Chen (Director) $0 $0 $0
Seiya Shaw (Director) $0 $0 $0
Peggy Huang (Advisor) $0 $0 $0
Cindy Chen (Director) $0 $0 $0
Joanna Hsiao (Advisor) $0 $0 $0
Franco Huang (Advisor) $0 $0 $0
Peter Pan (Director) $0 $0 $0
Eric Wang (Director) $0 $0 $0
See filing for compensation of 2 other people →
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Document Links

990
Filed on May 26, 2023

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

View Filing
XML

Fiscal Year Ending Dec.
2021

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$73,640
Expenses
$46,281
Net Income
$27,359
Net Assets
$81,298
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $73,640
100%
Investment Income $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 $81,298
Total Liabilities $0
Net Assets $81,298
Compensation
Key Employees and Officers Compensation Related Other
Elaine Lin (Secretary) $0 $0 $0
Carolyn An (President) $0 $0 $0
Melinda An (Coo) $0 $0 $0
Tony Torng (Chairman/Ceo) $0 $0 $0
Hsin Ying Chen (Director) $0 $0 $0
Theresa Lee (Cso) $0 $0 $0
Jack Phone (Director) $0 $0 $0
Charisse Chen (Director) $0 $0 $0
Ross Yang (Cfo) $0 $0 $0
Ralph Jagodka (Vice Chairman) $0 $0 $0
David Phan (Cio) $0 $0 $0
Charlene Chen (Director) $0 $0 $0
Eddie Chin (Director) $0 $0 $0
Jackie Chen (Director) $0 $0 $0
Julie Liu (Director) $0 $0 $0
Kathy Liu (Director) $0 $0 $0
Michael Akers (Director) $0 $0 $0
Royal Chen (Director) $0 $0 $0
Seiya Shaw (Director) $0 $0 $0
Peggy Huang (Advisor) $0 $0 $0
Cindy Chen (Director) $0 $0 $0
Joanna Hsiao (Advisor) $0 $0 $0
Franco Huang (Advisor) $0 $0 $0
Peter Pan (Director) $0 $0 $0
Eric Wang (Director) $0 $0 $0
See filing for compensation of 2 other people →
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990
Filed on April 30, 2022

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

View Filing
XML

Fiscal Year Ending Dec.
2020

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$104,085
Expenses
$99,363
Net Income
$4,722
Net Assets
$57,340
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $104,085
100%
Investment Income $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 $57,340
Total Liabilities $0
Net Assets $57,340
Compensation
Key Employees and Officers Compensation Related Other
Tony Torng (Chairman) $0 $0 $0
Hsin Ying Chen (Director) $0 $0 $0
Jack Phone (Director) $0 $0 $0
Charisse Chen (Director) $0 $0 $0
Ross Yang (Director) $0 $0 $0
Ralph Jagodka (Vice Chairman) $0 $0 $0
Charlene Chen (Director) $0 $0 $0
Eddie Chen (Director) $0 $0 $0
Jackie Chen (Director) $0 $0 $0
Julie Liu (Director) $0 $0 $0
Kathy Liu (Director) $0 $0 $0
Michael Akers (Director) $0 $0 $0
Royal Chen (Director) $0 $0 $0
Seiya Shaw (Director) $0 $0 $0
Kimberly An (Secretary) $0 $0 $0
Carolyn An (Ceo) $0 $0 $0
Ally An (Cfo) $0 $0 $0
Theresa Lee (Vp) $0 $0 $0
David Phan (Cio) $0 $0 $0
Peggy Huang (Advisor) $0 $0 $0
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Document Links

990
Filed on May 15, 2021

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2019

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$94,786
Expenses
$78,651
Net Income
$16,135
Net Assets
$52,618
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $94,786
100%
Investment Income $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 $52,618
Total Liabilities $0
Net Assets $52,618
Compensation
Key Employees and Officers Compensation Related Other
Tony Torng (Chairman) $0 $0 $0
Hsin Ying Chen (Director) $0 $0 $0
Jack Phone (Director) $0 $0 $0
Charisse Chen (Director) $0 $0 $0
Ross Yang (Director) $0 $0 $0
Ralph Jagodka (Vice Chairman) $0 $0 $0
Charlene Chen (Director) $0 $0 $0
Eddie Chen (Director) $0 $0 $0
Jackie Chen (Director) $0 $0 $0
Julie Liu (Director) $0 $0 $0
Kathy Liu (Director) $0 $0 $0
Michael Akers (Director) $0 $0 $0
Royal Chen (Director) $0 $0 $0
Seiya Shaw (Director) $0 $0 $0
Kimberly An (Secretary) $0 $0 $0
Carolyn An (President) $0 $0 $0
Ally An (Cfo) $0 $0 $0
Theresa Lee (Vp) $0 $0 $0
David Phan (Cio) $0 $0 $0
Peggy Huang (Advisor) $0 $0 $0
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Document Links

990
Filed on April 30, 2020

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

View Filing
PDF XML

Fiscal Year Ending Dec.
2018

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$77,449
Expenses
$69,046
Net Income
$8,403
Net Assets
$36,483
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $77,449
100%
Investment Income $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 $36,483
Total Liabilities $0
Net Assets $36,483

Document Links

990

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

PDF

Fiscal Year Ending Dec.
2017

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$77,632
Expenses
$92,864
Net Income
-$15,232
Net Assets
$28,080
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $77,632
100%
Investment Income $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 $28,080
Total Liabilities $0
Net Assets $28,080

Document Links

990

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

PDF

Fiscal Year Ending Dec.
2016

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$117,185
Expenses
$95,698
Net Income
$21,487
Net Assets
$37,351
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $117,185
100%
Investment Income $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 $43,313
Total Liabilities $5,962
Net Assets $37,351

Document Links

990

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

PDF

Fiscal Year Ending Dec.
2015

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$83,339
Expenses
$80,728
Net Income
$2,611
Net Assets
$15,864
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $83,339
100%
Investment Income $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 $21,824
Total Liabilities $5,960
Net Assets $15,864

Document Links

990

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

PDF

Fiscal Year Ending Dec.
2014

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$58,269
Expenses
$64,920
Net Income
-$6,651
Net Assets
$13,253
Notable Sources of Revenue Percent of Total Revenue
Contributions $0
Program Services $58,269
100%
Investment Income $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 $13,805
Total Liabilities $552
Net Assets $13,253

Document Links

990

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

PDF

Fiscal Year Ending Dec.
2013

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$59,210
Expenses
$52,159
Net Income
$7,051
Net Assets
$19,904
Notable Sources of Revenue Percent of Total Revenue
Contributions $16,000
27.0%
Program Services $43,210
73.0%
Investment Income $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 $22,129
Total Liabilities $2,225
Net Assets $19,904

Document Links

990

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

PDF

Fiscal Year Ending Dec.
2012

Extracted Financial Data

Extracted Financial Data from Form 990
Revenue
$64,989
Expenses
$52,136
Net Income
$12,853
Net Assets
$12,853
Notable Sources of Revenue Percent of Total Revenue
Contributions $15,000
23.1%
Program Services $49,989
76.9%
Investment Income $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 $4,000
7.7%
Assets/Debt
Total Assets $18,810
Total Liabilities $5,957
Net Assets $12,853

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.

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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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