Civic Intelligence

Mathaction

EIN 45-4718477 • 501(c)3 • Oakland, CA

Profile

Mathaction has a big mission: empower the next generation to use mathematics as a tool to understand - and seek solutions for - the most pressing global challenges of our time.

4118 Lyman RoadOakland, CA 94602

www.mathaction.org

Siviq Scores

Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.

Liabilities / Assets

1st percentile

-0.11x

Higher debt load relative to assets than 1% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2024

Liabilities / Revenue

1st percentile

-0.07x

Higher debt load relative to revenue than 1% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2024

Net Margin

11th percentile

-76%

Higher net margin than 11% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2024

Top Officer Pay

96th percentile

$42,000

Higher top officer pay than 96% of similar nonprofits.

Top officer pay equals 54.2% of source-year revenue.

501(c)3 • <$500k nonprofits • Source year 2016

Asset Growth

16th percentile

-57%

Faster asset growth than 16% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2023 to 2024

Revenue Growth

26th percentile

-29%

Faster revenue growth than 26% of similar nonprofits.

501(c)3 • <$500k nonprofits • Annualized from 2023 to 2024

Balance Sheet
Liabilities / Assets1st percentile

Assets

Up

$39,869

Up $25,039 (+169%) from 2024

Liabilities

Up

-$1,633

Up $19 (+1.2%) from 2024

Net Assets

Up

$41,502

Up $25,020 (+152%) from 2024

Operations
Liabilities / Revenue1st percentileNet Margin11th percentile

Revenue

Down

$18,078

Down $6,172 (-25%) from 2024

Expenses

Down

$6,383

Down $36,331 (-85%) from 2024

Net Income

Up

$11,695

Up $30,159 (+163%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth16th percentile

Grouped bars show assets, liabilities, and net assets across loaded filings.

$100K$50K$0-$50KAssets 2016: $9,023Liabilities 2016: $876Net Assets 2016: $8,1472016Assets 2017: $18,262Liabilities 2017: $1,012Net Assets 2017: $17,2502017Assets 2020: $98,293Liabilities 2020: $23Net Assets 2020: $98,2702020Assets 2021: $84,289Liabilities 2021: $186Net Assets 2021: $84,1032021Assets 2022: $38,963Liabilities 2022: $39Net Assets 2022: $38,9242022Assets 2023: $34,811Liabilities 2023: -$135Net Assets 2023: $34,9462023Assets 2024: $14,830Liabilities 2024: -$1,652Net Assets 2024: $16,4822024Assets 2025: $39,869Liabilities 2025: -$1,633Net Assets 2025: $41,5022025

Highlighted filing

2025

Assets$39,869
Liabilities-$1,633
Net Assets$41,502
Open 2025 Filing

Operations Trend

Revenue Growth26th percentile

Revenue, expenses, and net income by year, with the latest filing highlighted.

$400K$200K$0-$200KRevenue 2016: $77,438Expenses 2016: $83,216Net Income 2016: -$5,7782016Revenue 2017: $135,198Expenses 2017: $126,095Net Income 2017: $9,1032017Revenue 2020: $389,945Expenses 2020: $324,950Net Income 2020: $64,9952020Revenue 2021: $210,621Expenses 2021: $231,048Net Income 2021: -$20,4272021Revenue 2022: $45,012Expenses 2022: $90,191Net Income 2022: -$45,1792022Revenue 2023: $34,028Expenses 2023: $43,456Net Income 2023: -$9,4282023Revenue 2024: $24,250Expenses 2024: $42,714Net Income 2024: -$18,4642024Revenue 2025: $18,078Expenses 2025: $6,383Net Income 2025: $11,6952025

Highlighted filing

2025

Revenue$18,078
Expenses$6,383
Net Income$11,695
Open 2025 Filing

Filings

Most recent year

2025 • Form 990Detailed filing. Detailed filing data is available for this year.

Open filing
Assets
$39,869
Liabilities
-$1,633
Net assets
$41,502
Revenue
$18,078
Expenses
$6,383
Net income
$11,695
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$0.40$0.02$0.42$0.18$0.06$0.12
2024Detailed filing. Detailed filing data is available for this year.$0.15$0.02$0.16$0.24$0.43$0.18
2023Detailed filing. Detailed filing data is available for this year.$0.35$0.00$0.35$0.34$0.43$0.09
2022Detailed filing. Detailed filing data is available for this year.$0.39$0.00$0.39$0.45$0.90$0.45
2021Detailed filing. Detailed filing data is available for this year.$0.84$0.00$0.84$2.11$2.31$0.20
2020Detailed filing. Detailed filing data is available for this year.$0.98$0.00$0.98$3.90$3.25$0.65
2017Detailed filing. Detailed filing data is available for this year.$0.18$0.01$0.17$1.35$1.26$0.09
2016Detailed filing. Detailed filing data is available for this year.$0.09$0.01$0.08$0.77$0.83$0.06
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jan 1, 2025 to Dec 31, 2025
Signed
Mar 1, 2026
Return Version
2025v4.0
Gross Receipts
$18,078
Mission and Program Overview

Mission

Mathaction has a big mission: empower the next generation to use mathematics as a tool to understand - and seek solutions for - the most pressing global challenges of our time.

Balance Sheet Detail
LineBeginningEndChange
Assets
Cash and Non-Interest-Bearing Accounts$6,810$31,849▲ $25,039
Accounts Receivable$5,450$5,450→ $0
Receivables From Officers Etc$970$970→ $0
Total Assets$14,830$39,869▲ $25,039
Other Assets Total$1,600$1,600→ $0
Liabilities
Accounts Payable and Accrued Expenses$-1,652$-1,633▲ $19
Total Liabilities$-1,652$-1,633▲ $19
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$16,482$41,502▲ $25,020
Total Net Assets Fund Balance$16,482$41,502▲ $25,020
Total Liabilities and Net Assets / Fund Balance$14,830$39,869▲ $25,039

Asset Categories

AssetBook ValueDepreciationBasis
Other Assets Org$1,600--
Compensation and Service Providers
Top Officer Pay96th percentile

Board Members and Trustees

NameTitle
Tamar PosnerPresident
Jad NasrallahDirector
Sarita EvansSecretary
Jennifer BloomTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$7,578
Program Service Revenue
$10,500
Investment Income
$0
Other Revenue
$0
All Other Contributions
$7,578
Change in Net Assets
$11,695
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$3,358
Salaries, Compensation, and Employee Benefits$3,025
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$3,025$0$0$3,025
Other Expenses$2,500$0$0$2,500
Insurance$0$578$0$578
Office Expenses$0$278$0$278
Total Functional Expenses$5,525$858$0$6,383
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Insider Transactions and Loans

Loans and Receivables

Line ItemBeginningEndChange
Receivables from Officers, Directors, Trustees, and Key Employees$970$970→ $0
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
Yes
Audit committee
No
Business relationship with 35% controlled entity
No
Business relationship with family members
No
Business relationship with organization members
No
Material changes to governing documents
No
Compensation from other sources disclosed
No
CEO compensation reviewed
No
Other officer compensation reviewed
No
Conflict-of-interest policy
No
Audited financial statements prepared
No
Key decisions subject to board approval
No
Management duties delegated
No
Filing and Contact Details

Filer

Filer Name
Mathaction
EIN
45-4718477
Phone
5108342180
Address
4118 LYMAN ROAD, Oakland, CA 94602

Signing Officer

Name
Kayla Kirsch
Title
President
Phone
5108342180
Signed
2026-03-01

Organization Details

Principal Officer
Tamar Posner
Formed
2012
Legal Domicile
CA
Voting Board Members
4
Independent Board Members
4
Employees
0
Volunteers
4

Preparer

Firm
R & A Tax & Accounting LLC
Address
153 Pine St, Massapequa Park, NY 11762
Preparer
Anthony Aversano
Phone
6313277874
Supplemental Narrative

Additional Explanations

Pt VI, Line 11B

“President reviews the form 990.”

Pt VI, Line 19

“AVAILABLE UPON REQUEST.”

Raw XML Appendix321 raw XML fields

This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.

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IRS990/WebsiteAddressTxt0www.mathaction.org
IRS990/WhistleblowerPolicyInd0false
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/PersonNm0KAYLA KIRSCH
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0PRESIDENT
ReturnHeader/BusinessOfficerGrp/PhoneNum05108342180
ReturnHeader/BusinessOfficerGrp/SignatureDt02026-03-01
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0MATHACTION
ReturnHeader/Filer/BusinessNameControlTxt0MATH
ReturnHeader/Filer/EIN0454718477
ReturnHeader/Filer/PhoneNum05108342180
ReturnHeader/Filer/USAddress/AddressLine1Txt04118 LYMAN ROAD
ReturnHeader/Filer/USAddress/CityNm0Oakland
ReturnHeader/Filer/USAddress/StateAbbreviationCd0CA
ReturnHeader/Filer/USAddress/ZIPCd094602
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0461734080
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0R & A Tax & Accounting LLC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt0153 Pine St
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0Massapequa Park
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0NY
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd011762
ReturnHeader/PreparerPersonGrp/PhoneNum06313277874
ReturnHeader/PreparerPersonGrp/PreparationDt02026-03-09
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0ANTHONY AVERSANO
ReturnHeader/ReturnTs02026-03-09T17:34:49-07:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02025-01-01
ReturnHeader/TaxPeriodEndDt02025-12-31
ReturnHeader/TaxYr02025

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