Nonprofit · EIN 32-0362642
UNITED ABACUS ARITHMETIC ASSOCIATION
Also known as UAAA
Tax-exempt · LA VERNE, CA 91750
Financials
| Year ended | Form | Revenue | Expenses | Net income | Total assets | Liabilities | Net assets |
|---|---|---|---|---|---|---|---|
| December 31, 2025 | 990 | $111,306 | $130,026 | -$18,720 | $50,995 | $0 | $50,995 |
| December 31, 2024 | 990 | $104,062 | $107,426 | -$3,364 | $69,714 | $0 | $69,714 |
Financial details: 990 for the year ended December 31, 2025
Revenue
- Contributions, gifts and grants
- $0
- Program service revenue
- $111,306
- Investment income
- $0
- Other revenue
- $0
Expenses
- Grants and similar amounts paid
- $0
- Compensation of officers, directors and key employees
- $0
- Salaries, compensation and benefits (total)
- $0
- Professional fundraising fees
- $0
- Accounting fees
- $1,455
- Occupancy
- $15,465
- Travel
- $12,472
- Program services (functional)
- $130,026
Balance sheet and other
- Total assets, start of year
- $69,714
- Total assets, end of year
- $50,995
- Total liabilities, end of year
- $0
- Net assets, end of year
- $50,995
- Gross receipts
- $111,306
- Employees
- 0
- Year formed
- 2011
- State of legal domicile
- CA
From the e-filed returns the IRS publishes as XML (latest three processing years; amended returns replace the original). PDF copies at the IRS.
Officers, directors and key employees
As listed on the 990 for the year ended December 31, 2025, highest compensation first.
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| SYDNEY CHENG | SECRETARY Trustee or director, Officer, Key employee | 5 | $0 |
| CAROLYN AN | PRESIDENT Trustee or director, Officer, Key employee | 20 | $0 |
| MELINDA AN | COO Trustee or director, Officer, Key employee | 5 | $0 |
| TONY TORNG | CHAIRMAN/CEO Trustee or director, Officer, Key employee | 5 | $0 |
| ROSS YANG | CFO Trustee or director, Officer, Key employee | 20 | $0 |
| MELINDA AN | COO Trustee or director, Officer, Key employee | 5 | $0 |
| DAVID PHAN | CIO Trustee or director, Officer | 5 | $0 |
| ELAINE LIN | VP Trustee or director, Officer | 5 | $0 |
| CINDY CHEN | VP Trustee or director, Officer | 5 | $0 |
| JUSTIN HSU | VP Trustee or director, Officer | 5 | $0 |
| KEN HENG | ADVISOR Trustee or director | 5 | $0 |
| TONY LIN | ADVISOR Trustee or director | 5 | $0 |
| FRANCO HUANG | ADVISOR Trustee or director | 5 | $0 |
| JOANNA HSIAO | ADVISOR Trustee or director | 5 | $0 |
| PEGGY HUANG | ADVISOR Trustee or director, Institutional trustee | 5 | $0 |
3 more people on this return
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ALLEN KUO | ADVISOR Trustee or director | 5 | $0 |
| THERESA LEE | CSO Trustee or director, Officer, Key employee | 5 | $0 |
| RELPH JAGODKA | VP Trustee or director, Officer, Key employee | 5 | $0 |
990 for the year ended December 31, 2024: 27 people
| Name | Title | Hours / week | Compensation |
|---|---|---|---|
| ELAINE LIN | SECRETARY Trustee or director, Officer, Key employee | 5 | $0 |
| CAROLYN AN | PRESIDENT Trustee or director, Officer, Key employee | 20 | $0 |
| MELINDA AN | COO Trustee or director, Officer, Key employee | 5 | $0 |
| TONY TORNG | CHAIRMAN/CEO Trustee or director, Officer, Key employee | 5 | $0 |
| HSIN YING CHEN | DIRECTOR Trustee or director | 5 | $0 |
| THERESA LEE | CSO Trustee or director, Officer, Key employee | 5 | $0 |
| JACK PHONE | DIRECTOR Trustee or director | 5 | $0 |
| CHARISSE CHEN | DIRECTOR Trustee or director | 5 | $0 |
| ROSS YANG | CFO Trustee or director, Officer, Key employee | 10 | $0 |
| RALPH JAGODKA | VICE CHAIRMAN Trustee or director | 5 | $0 |
| DAVID PHAN | CIO Trustee or director, Officer, Key employee | 5 | $0 |
| CHARLENE CHEN | DIRECTOR Trustee or director | 5 | $0 |
| EDDIE CHIN | DIRECTOR Trustee or director | 5 | $0 |
| JACKIE CHEN | DIRECTOR Trustee or director | 5 | $0 |
| JULIE LIU | DIRECTOR Trustee or director | 5 | $0 |
| KATHY LIU | DIRECTOR Trustee or director | 5 | $0 |
| MICHAEL AKERS | DIRECTOR Trustee or director | 5 | $0 |
| ROYAL CHEN | DIRECTOR Trustee or director | 5 | $0 |
| SEIYA SHAW | DIRECTOR Trustee or director | 5 | $0 |
| PEGGY HUANG | ADVISOR Trustee or director | 5 | $0 |
| CINDY CHEN | DIRECTOR Trustee or director | 5 | $0 |
| JOANNA HSIAO | ADVISOR Trustee or director | 5 | $0 |
| FRANCO HUANG | ADVISOR Trustee or director | 5 | $0 |
| PETER PAN | DIRECTOR Trustee or director | 5 | $0 |
| ERIC WANG | DIRECTOR Trustee or director | 5 | $0 |
| SOFIA LIU | DIRECTOR Trustee or director | 5 | $0 |
| PATTY YANG | DIRECTOR Trustee or director | 5 | $0 |
Address and contacts
- Address (IRS master file)
- 1787 VAN DUSEN RD, LA VERNE, CA 91750-5706
- Principal officer (990 for 2025)
- CAROLYN AN, 1787 VAN DUSEN RD, LA VERNE, CA 91750
- Signed the 990
- CAROLYN AN, PRESIDENT
- Phone
- (909) 616-1489
- Return prepared by
- THE LAI CPA
Mission
UAAAs mission is to promote education of abacus and enhance students knowledge in arithmetic abacus. The most significant activities are assessment tests, volunteer training, competitions, various awarding, and charity events.
Program accomplishments
- UAAA conducted annual assessment test for each applying student. UAAA participated US and international abacus contests around the world. Upon sucessfully completion the assessment test and contests, UAAA presented certificates of completion and awards to the students accordingly. In addition, UAAA awards scholarship to the student with high performance constantly.Expenses $130,026 · revenue $111,306
What it must file and when
IRS records say it files Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N. Its accounting year ends in December, so each return is due on the 15th day of the 5th month after that.
| Tax year | Year ended | Due | IRS public records |
|---|---|---|---|
| 2025 | December 31, 2025 | May 15, 2026 | 990 on file |
| 2024 | December 31, 2024 | May 15, 2025 | 990 on file |
| 2023 | December 31, 2023 | May 15, 2024 | 990 on file |
IRS record
- EIN
- 32-0362642
- Tax-exempt status
- 501(c)(3): Charitable, religious, educational or scientific organization
- Foundation status
- Publicly supported organization (170(b)(1)(A)(vi))
- Donations deductible (Pub 78)
- Public charity, 50% deduction limit
- Exempt since
- 2013
- Accounting year ends
- December
- Files
- Form 990 or 990-EZ
- Category (NTEE)
- Education (B99)
- Assets (IRS master file)
- $50,995
- Income (IRS master file)
- $111,306
Filing history
| Form | Year ended | Revenue | Expenses | Assets | Return |
|---|---|---|---|---|---|
| 990 | December 2025 | – | – | – | IRS |
| 990 | December 2024 | – | – | – | IRS |
| 990 | December 2023 | $85,436 | $83,591 | $73,078 | IRS |
| 990 | December 2022 | $83,028 | $93,093 | $71,233 | IRS |
| 990 | December 2021 | – | – | – | IRS |
| 990 | December 2020 | – | – | – | IRS |
990-N: the IRS publishes only the latest e-Postcard per organization; earlier years appear here as 990.tax collects the monthly files. 990, 990-EZ, 990-PF, 990-T: every e-filed return in the IRS e-file index since 2019; XML for the latest three processing years, amounts from the IRS Statistics of Income extracts before that. PDF copies and determination letters at the IRS.
Questions about UNITED ABACUS ARITHMETIC ASSOCIATION
- What is the EIN of UNITED ABACUS ARITHMETIC ASSOCIATION?
- The employer identification number (EIN) of UNITED ABACUS ARITHMETIC ASSOCIATION is 32-0362642.
- Is UNITED ABACUS ARITHMETIC ASSOCIATION tax-exempt?
- Yes. The IRS lists it as tax-exempt under section 501(c)(3) since 2013.
- Are donations to UNITED ABACUS ARITHMETIC ASSOCIATION tax-deductible?
- Yes. It is listed in IRS Publication 78 (Public charity, 50% deduction limit).
- Which annual return does UNITED ABACUS ARITHMETIC ASSOCIATION file?
- Form 990 or 990-EZ. Based on its last return; a smaller organization may file the 990-N.
- When is the next return of UNITED ABACUS ARITHMETIC ASSOCIATION due?
- The return for tax year 2026 (the year ending December 31, 2026) is due May 17, 2027. Form 8868 extends it by six months; the 990-N cannot be extended.
- When did UNITED ABACUS ARITHMETIC ASSOCIATION last file with the IRS?
- The latest return in the IRS public files is the 990 for the year ended December 2025.
- Who is the principal officer of UNITED ABACUS ARITHMETIC ASSOCIATION?
- The 990 for the year ended December 31, 2025 names CAROLYN AN.
- Who are the officers and directors of UNITED ABACUS ARITHMETIC ASSOCIATION?
- The 990 for the year ended December 31, 2025 lists 18 people; 0 received compensation from the organization.
- How much revenue does UNITED ABACUS ARITHMETIC ASSOCIATION have?
- On its 990 for the year ended December 31, 2025 it reported revenue of $111,306, expenses of $130,026 and total assets of $50,995 at year end.
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