Is it real?
Yes. Never revoked by the IRS. Latest filing on record: FY2025. IRS ruling in Feb 1999.
IRS Pub. 78 · IRS Auto-Revocation List · IRS Business Master File
Where the money goes
81 cents of each dollar spent went to programs.
Form 990 Part IX, line 25, columns B–D. Every line is in By the numbers.
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Who runs it and what they're paid
10 people listed on the 990; $35K paid to officers and key staff.
Deanna Haunsperger’s $16K as Treasurer is at the 1st percentile of top reported officer pay among 1168 $1–10M international nonprofits. Peer set: organizations in the same NTEE major field of work and revenue-size band, compared on each org’s own highest-paid officer/key-employee, from Form 990 Part VII / 990-PF Part VIII. Descriptive placement, not a verdict on whether the pay is appropriate.
Compensation history total reportable pay by year · 4 named individuals · Part VII
| Name | FY2025 | FY2024 | FY2023 | FY2022 | FY2021 | FY2020 |
|---|---|---|---|---|---|---|
| Tara Holm | — | $25,300 | $20,464 | $17,391 | $16,884 | $21,392 |
| Deanna Haunsperger | $16,500 | $16,500 | $13,890 | $11,670 | $11,330 | $11,000 |
| Bela Bajnok | $13,200 | $13,200 | $11,751 | $11,255 | $10,927 | $10,609 |
| Kiran Kedlaya | $5,600 | $5,600 | $3,333 | — | — | — |
Total reportable compensation (Form 990 Part VII column D / Schedule J column E) by filing year, matched by name within this organization. The Schedule J base / bonus / deferred breakdown is not parsed into this dataset.
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Questions the 990 asks
The form asks each of these directly. These are the filed answers.
- Family or business ties among officersPt VI · Ln 2No
- Top official's pay set by an independent reviewPt VI · Ln 15aNo
Programs and updates
Promotes math and math education study through international exchange and cooperation.
Questions for Pro Mathematica Arte
Your first name shows with your question. Pro Mathematica Arte answers here, for everyone.
Know this org? Add your story
In the fiscal year ending august 31, 2025, the BSM program held three semesters of study in mathematics in budapest, hungary. We served 55 students in fall 2024, 61 students in spring of 2025, and 45 students in the summer of 2025.
Funders
Who pays for it.
From grant filings on record. Receipts are incomplete: individual donors are never listed.
Grants
By the numbers
The FY2025 990, line by line.
Download 990
| Line | Start FY25 | End FY25 |
|---|---|---|
| Cash and savingsLn 1–2 | $1.2M | $1.0M |
| InvestmentsLn 11–13 | $4.3M | $4.9M |
| Land, buildings, equipmentLn 10c | $3K | $3K |
| Total assetsLn 16 | $5.5M | $5.9M |
| LiabilitiesLn 26 | $863K | $812K |
| Net assetsLn 32 | $4.6M | $5.1M |
| Line | Total | Programs | Management | Fundraising |
|---|---|---|---|---|
| Grants and assistance to foreign recipientsLn 3 | $157K | $157K | ||
| Other salaries and wagesLn 7 | $137K | $137K | ||
| Payroll taxesLn 10 | $11K | $11K | ||
| Management feesLn 11a | $92K | $92K | ||
| Legal feesLn 11b | $436 | $436 | ||
| Accounting feesLn 11c | $19K | $19K | ||
| Investment management feesLn 11f | $5K | $5K | ||
| Other fees for servicesLn 11g | $132K | $107K | $25K | |
| Advertising and promotionLn 12 | $16K | $16K | ||
| Office expensesLn 13 | $9K | $2K | $7K | |
| Information technologyLn 14 | $3K | $3K | ||
| TravelLn 17 | $48K | $18K | $30K | |
| Conferences, conventions and meetingsLn 19 | $16K | $16K | ||
| Depreciation, depletion and amortizationLn 22 | $2K | $2K | ||
| InsuranceLn 23 | $8K | $8K | ||
| Other expenses (24a–d)Ln 24 | $1.3M | $1.3M | $4K | |
| All other expensesLn 24e | $9K | $9K | $505 | |
| Total functional expensesLn 25 | $2.0M | $1.6M | $373K | $0 |
Filing history
| Year | Money in | Money out | In minus out | Net assets | Download |
|---|---|---|---|---|---|
| FY2025 Latest Viewing | $2.0M | $2.0M | $42K | $5.1M | 990 PDF |
| FY2024 | $2.0M | $2.1M | −$92K | $4.6M | 990 PDF |
| FY2023 | $1.5M | $1.5M | −$51K | $4.0M | 990 PDF |
| FY2022 | $1.6M | $1.3M | $269K | $3.9M | 990 PDF |
| FY2021 | $389K | $827K | −$438K | $4.3M | 990 PDF |
| FY2020 | $1.9M | $1.8M | $135K | $4.1M | 990 PDF |
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Schedules filed Part IV
See the full FY2025 990 (6 parts)
Part I · Summary $1,995,618 revenue, 12 lines filed
Part VI · Governance 10 of 10 board members independent, 3 to look at
Part VIII · Statement of revenue $1,995,618 across 4 lines filed
Part IX · Statement of functional expenses $1,953,341 across 17 lines filed
Part X · Balance sheet $5,908,021 assets, 11 lines filed
Part XI · Reconciliation of net assets $5,096,254 net assets at year end
Form 990 e-file (XML) FY2025 from the IRS · Classification, formation year and address from the IRS Business Master File
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