Mary Lou Diether & Adelaide E Diether Charitable Trust is a 501(c)(3) organization based in Milwaukee, Wisconsin, registered in 1977, with $175,265 in FY2024 revenue. CharityIndex grades it C+.
Revenue (FY2024)
$175K
▲ 506.6% vs prior year
Expenses (FY2024)
$124K
Net assets
$2.1M
Employees
—
Measures how much of every dollar spent actually reaches programs, plus what it costs to raise $100 of donations. The worse of the two measures sets the letter (85%+ to programs is an A; under $15 to raise $100 is an A), averaged over the three most recent filings. Not scored for Mary Lou Diether & Adelaide E Diether Charitable Trust— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
Measures whether the organization is built to last: how many months its reserves would cover expenses (3+ months earns an A-range score, but hoarding 5+ years of budget is capped) and whether it runs a surplus or a deficit. For Mary Lou Diether & Adelaide E Diether Charitable Trust: 200 mo reserves · +29% margin earns a B+ on this criterion. See the exact thresholds →
Checks how the organization is run, from its own Form 990: an independent board majority, a board of five or more, conflict-of-interest, whistleblower and document-retention policies, and independently audited financials. The share of disclosed checks that pass sets the letter. Not scored for Mary Lou Diether & Adelaide E Diether Charitable Trust— this filing type doesn't report it, and the rating simply skips it (never counts it against the organization). See the exact thresholds →
Counts five disclosure signals: a recent filing, a mission statement, program descriptions, a listed website, and the full expense breakdown. More disclosure, better letter. For Mary Lou Diether & Adelaide E Diether Charitable Trust: 1 of 5 disclosure signals earns a D on this criterion. See the exact thresholds →
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Revenue declined from $226K (FY2013) to $175K (FY2024) across 12 reported years.
Financial snapshot
Operating margin
29.4%
Revenue exceeded expenses in the latest fiscal year.
Total assets
$2.1M
Total liabilities
$0
Net assets
$2.1M
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2024 | $175,265▲507% | $123,813▼11.3% | $2,060,881▲2.5% | $2,060,881▲2.5% | 990PF |
| 2023 | $28,894▲173% | $139,656▼18.9% | $2,010,054▼5.2% | $2,010,054▼5.2% | 990PF |
| 2022 | -$39,657▼110% | $172,112▲6.9% | $2,120,939▼9.1% | $2,120,939▼9.1% | 990PF |
| 2021 | $393,376▲843% | $160,965▲6.0% | $2,332,751▲10.4% | $2,332,751▲10.4% | 990PF |
| 2020 | $41,709▼61.1% | $151,924▲4.8% | $2,112,431▼4.4% | $2,112,431▼4.4% | 990PF |
| 2019 | $107,307▼34.7% | $144,902▲2.0% | $2,210,692▼1.7% | $2,210,692▼1.7% | 990PF |
| 2018 | $164,357▲198% | $142,060▼0.5% | $2,248,275▲1.0% | $2,248,275▲1.0% | 990PF |
| 2017 | $55,111▲308% | $142,798▲3.0% | $2,225,977▼3.8% | $2,225,977▼3.8% | 990PF |
| 2016 | $13,515▼91.4% | $138,638▼14.6% | $2,313,687▼5.2% | $2,313,687▼5.2% | 990PF |
| 2015 | $157,360▼65.6% | $162,341▲7.0% | $2,439,810▼0.2% | $2,439,810▼0.2% | 990PF |
| 2014 | $457,137▲102% | $151,715▼12.2% | $2,444,423▲14.3% | $2,444,574▲14.3% | 990PF |
| 2013 | $226,110 | $172,871▲24.0% | $2,138,992▲2.6% | $2,139,523▲2.6% | 990PF |
| 2012 | — | $139,368▼0.7% | $2,085,747▼4.1% | $2,085,747▼4.1% | 990PF |
| 2011 | — | $140,327▼5.2% | $2,174,990▲4.3% | $2,174,990▲4.3% | 990PF |
| 2010 | — | $147,950 | $2,086,085 | $2,086,085 | 990PF |
Original Form 990 PDFs (the Form column) are served by ProPublica Nonprofit Explorer, as filed with the IRS. Create a free account to download the CSV report.
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Data for Mary Lou Diether & Adelaide E Diether Charitable Trust (EIN 41-6208105) comes from the IRS Business Master File and e-filed Form 990 returns, via CharityIndex. Figures reflect what the organization reported to the IRS for each fiscal year.