Bellport-brookhaven Historical Society is a 501(c)(3) organization based in Bellport, New York, registered in 1965, with $342,345 in FY2025 revenue. CharityIndex grades it C.
Revenue (FY2025)
$342K
▲ 71.6% vs prior year
Arts & Culture median: $159K
Expenses (FY2025)
$401K
Net assets
$1.6M
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 Bellport-brookhaven Historical Society— 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 Bellport-brookhaven Historical Society: 49 mo reserves · -17% margin earns a C+ 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 Bellport-brookhaven Historical Society— 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 Bellport-brookhaven Historical Society: 1 of 5 disclosure signals earns a D on this criterion. See the exact thresholds →
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Revenue declined from $588K (FY2013) to $342K (FY2025) across 12 reported years.
Financial snapshot
Operating margin
-17.1%
Spent more than it raised in the latest fiscal year.
Total assets
$1.6M
Total liabilities
$0
Net assets
$1.6M
| Fiscal year | Revenue | Expenses | Net assets | Total assets | Form |
|---|---|---|---|---|---|
| 2025 | $342,345▲71.6% | $400,979▲116% | $1,642,475▼1.0% | $1,642,475▼1.0% | 990 |
| 2024 | $199,525▼18.6% | $185,600▼11.6% | $1,658,501▲2.7% | $1,658,501▲2.7% | 990 |
| 2023 | $245,128▲42.4% | $209,995▼16.6% | $1,614,351▲2.2% | $1,614,351▲2.2% | 990 |
| 2022 | $172,171▼0.4% | $251,880▲67.3% | $1,579,218▼4.8% | $1,579,218▼4.8% | 990 |
| 2021 | $172,935▼20.3% | $150,548▼14.0% | $1,658,927▲2.3% | $1,658,927▲1.8% | 990 |
| 2019 | $216,954▲81.1% | $175,078▲23.8% | $1,622,388▲2.6% | $1,629,052▲2.8% | 990 |
| 2018 | $119,783▼41.3% | $141,438▼9.6% | $1,580,512▼1.4% | $1,585,348▼1.6% | 990 |
| 2017 | $204,043▼20.0% | $156,495▲9.8% | $1,602,166▲3.1% | $1,610,894▲3.4% | 990 |
| 2016 | $255,016▲75.1% | $142,519▼1.2% | $1,554,618▲7.8% | $1,557,795▲7.9% | 990 |
| 2015 | $145,651▼15.9% | $144,303▲5.8% | $1,442,122▲0.1% | $1,443,686▲0.1% | 990 |
| 2014 | $173,223▼70.6% | $136,393▲27.4% | $1,440,775▲2.6% | $1,442,390▲2.7% | 990 |
| 2013 | $588,321 | $107,094▲6.4% | $1,403,945▲52.2% | $1,405,090▲51.9% | 990 |
| 2012 | — | $100,675▲20.8% | $922,718▲6.5% | $924,763▲4.6% | 990 |
| 2011 | — | $83,361▲0.2% | $866,427▲0.4% | $884,418▲2.1% | 990 |
| 2010 | — | $83,179 | $863,234 | $866,614 | 990 |
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 Bellport-brookhaven Historical Society (EIN 11-6079116) 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.