Brookline Historical Society
Brookline Historical Society maintains stable, volunteer-led operations with fluctuating but modest finances.
EIN: 20367428 · Brookline, NH · Updated: 2026-03-28
| Metric | Value |
|---|---|
| Total Revenue | $21K |
| Total Expenses | $14K |
| Program Spending | 90% |
| Net Assets | $26K |
| Transparency Score | 85/100 |
Search Intent Cockpit
Brookline Historical Society Form 990, Revenue, CEO Pay, and IRS Filing Signals
Brookline Historical Society is surfaced here as a decision-ready nonprofit financial profile, not just a charity listing. The page consolidates IRS Form 990 revenue, expenses, assets, tax-exempt classification, executive compensation, mission score, red flags, and year-by-year filing history so donors, researchers, journalists, and grant teams can answer the common search questions around Brookline Historical Society in one place.
Form 990 Filing Summary
13 filing years are available, with latest revenue of $18K and expenses of $14K.
Revenue and Expenses
Brookline Historical Society reported $18K in revenue and $14K in expenses, a surplus of $4K.
Executive Compensation
Officer, director, trustee, and key employee pay is reviewed from IRS 990 compensation disclosures when present.
Charity Score and Red Flags
85/100 mission score, 1 red flag, and 3 strengths are shown from structured and AI review.
Is Brookline Historical Society Legit?
Some Concerns
Assessment based on IRS 990 filings, spending patterns, and AI analysis. Not a guarantee of legitimacy. Full charity check →
IRS 990 Data Cockpit
Where the Money Comes From and Where It Goes
Revenue Source Mix
Revenue-source line items are not available on the stored filing yet. Future ingestion now preserves contribution, program-revenue, and investment-income fields when ProPublica provides them.
Expense Deployment
| Program services | $13K (90%) |
Across stored filings, Brookline Historical Society shows contribution history pending. Next enrichment targets: revenue-source fields, IRS BMF classification.
Decision Cockpit
One-Stop Donor, Research, and Peer Context Hub
| Decision Lens | Signal | What to Inspect Next |
|---|---|---|
| Legitimacy | Some Concerns | Good filing record; 1 red flag identified |
| Mission spend | 90% to programs | Excellent |
| Financial durability | Grade A | 13 stored filing years |
| Peer context | Compare with Hellenic Society Paideia Of New Hampshire | New Hampshire and category context |
Trust Check
Review legitimacy, deductibility, red flags, and filing consistency.
Open charity check →Peer Benchmark
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Compare with Hellenic Society Paideia Of New Hampshire →All New Hampshire nonprofits
Local and Sector Spokes
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Brookline, NH nonprofitsFollow the Money
Jump into spending, compensation, rankings, and filing-year evidence.
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Keep the Investigation Moving
Brookline Historical Society directs 90% of its spending to programs. This exceeds the industry benchmark of 65%, indicating strong mission focus.
About Brookline Historical Society
Brookline Historical Society (EIN: 20367428) is a nonprofit organization based in Brookline, NH. The organization reported total revenue of $21K and total assets of $33K according to its most recent IRS 990 filing. This transparency report provides an AI-powered analysis of Brookline Historical Society's financial health, spending patterns, executive compensation, and overall mission effectiveness based on publicly available IRS data.
Organization Overview
Brookline Historical Society is a micro nonprofit that has been operating for 43 years, with 13 years of IRS 990 filings on record (2011–2023). Revenue has grown at a compound annual rate of -2.9%.
Key Financial Metrics (2023)
From the most recent IRS 990 filing on record:
| Total Revenue | $18K |
| Total Expenses | $14K |
| Surplus / Deficit | +$4K |
| Total Assets | $26K |
| Net Assets | $26K |
| Operating Margin | 22.7% |
| Months of Reserves | 21.6 months |
Financial Health Grade: A
In 2023, Brookline Historical Society reported a surplus of $4K with revenue exceeding expenses, holds 21.6 months of operating reserves (strong position).
Financial Trends
Over 13 years of filings (2011–2023), Brookline Historical Society's revenue has declined at a compound annual growth rate (CAGR) of -2.9%.
| Year | Revenue Change | Expense Change | Asset Change |
|---|---|---|---|
| 2023 | +23.2% | -8.3% | +2555700.0% |
| 2022 | -35.1% | -20.4% | -100.0% |
| 2021 | +329.1% | +16.1% | -6.3% |
| 2020 | -11.3% | +118.7% | -32.8% |
| 2019 | -17.0% | -2.7% | +3477400.0% |
IRS Tax-Exempt Classification
| IRS Classification Codes | 1000 |
| IRS Ruling Date | 1983 |
Classification data from ProPublica Nonprofit Explorer. Additional BMF data may be available after enrichment.
AI Transparency Report
Mission Effectiveness Score
NonprofitSpending's AI analysis rates Brookline Historical Society with a Mission Score of 85 out of 100 (Excellent). This score reflects the organization's overall financial transparency, program spending efficiency, and governance indicators derived from IRS 990 public filings.
Spending Breakdown
- admin: 5%
- programs: 90%
- fundraising: 5%
According to IRS 990 filings, Brookline Historical Society allocates its expenses as follows: admin: 5%, programs: 90%, fundraising: 5%. With 90% directed toward programs, this reflects a strong commitment to its charitable mission.
Key Financial Metrics (2023)
From the most recent IRS 990 filing on record:
- The organization reported a surplus of $4K, with revenue exceeding expenses.
Executive Compensation Analysis
Executive compensation is consistently reported as 0% across all available filings, indicating a volunteer-led organization. This is highly positive for a small organization, as it means all funds are directed towards operational expenses and mission-related activities.
Executive compensation data is sourced from IRS 990 filings, which require nonprofits to disclose the compensation of officers, directors, trustees, and key employees. NonprofitSpending analyzes this data relative to the organization's total revenue and sector benchmarks to assess whether executive pay is reasonable.
Red Flags
The following concerns were identified during AI analysis of Brookline Historical Society's IRS 990 filings:
- Significant fluctuations in reported assets, including $1 in multiple years, which could indicate unusual accounting or reporting practices.
Strengths
The following positive indicators were identified for Brookline Historical Society:
- Consistent reporting of 0% officer compensation, indicating a volunteer-driven model and efficient use of funds.
- Zero reported liabilities across all filings, demonstrating strong financial solvency and no debt.
- Long history of IRS 990 filings (13 filings), suggesting good transparency and compliance.
Frequently Asked Questions about Brookline Historical Society
Is Brookline Historical Society a legitimate charity?
Brookline Historical Society (EIN: 20367428) is a registered tax-exempt nonprofit based in New Hampshire. Our AI analysis gives it a Mission Score of 85/100. It has 13 years of IRS 990 filings on record. Total revenue: $21K. 1 red flag identified. 3 strengths noted. Financial health grade: A.
How does Brookline Historical Society spend its money?
Brookline Historical Society directs 90% of its spending to programs and services. Fundraising costs 5%. This exceeds the 65% industry benchmark.
Are donations to Brookline Historical Society tax-deductible?
Brookline Historical Society is registered as a tax-exempt nonprofit (EIN: 20367428). Donations to most 501(c)(3) organizations are tax-deductible. Consult a tax professional for your specific situation.
What percentage of Brookline Historical Society's spending goes to programs?
Brookline Historical Society directs 90% to programs, 5% to fundraising. This exceeds the 65% industry benchmark for efficient nonprofits.
Where is Brookline Historical Society located?
Brookline Historical Society is headquartered in Brookline, New Hampshire and files with the IRS under EIN 20367428.
How many years of IRS 990 filings does Brookline Historical Society have?
Brookline Historical Society has 13 years of IRS 990 filings on record at NonprofitSpending. This extensive filing history provides a strong basis for evaluating long-term financial trends. The most recent filing shows $21K in total revenue.
How does the organization manage its assets, given the significant fluctuations (e.g., $1 in 2018 and 2022 vs. $41,695 in 2016)?
The filings show assets ranging from $1 to over $40,000. This could be due to specific accounting methods for non-cash assets, temporary asset transfers, or reporting errors. Further detail from the organization would be needed to understand this pattern.
What is the specific breakdown of program, administrative, and fundraising expenses?
The provided data does not offer a detailed breakdown of expenses beyond total expenses. A more granular view would be necessary to fully assess spending efficiency.
How does the organization sustain itself with such low revenue in some years (e.g., $3,053 in 2017)?
The organization appears to manage its expenses to align with revenue, often operating at a slight deficit or surplus. The consistent zero liabilities suggest it avoids debt, relying on its existing assets and incoming revenue to cover costs.
Filing History
IRS 990 filing history for Brookline Historical Society showing financial trends over 13 years of public records:
Over 13 years of IRS 990 filings (2011–2023), Brookline Historical Society's revenue has declined by 29.5%, moving from $26K to $18K. Total assets decreased by 70.7% over the same period, from $87K to $26K. Total functional expenses rose by 186.2%, from $5K to $14K. In its most recent filing year (2023), Brookline Historical Society reported a surplus of $4K, with revenue exceeding expenses.
| Year | Revenue | Expenses | Assets | Liabilities | Officer Comp. % | |
|---|---|---|---|---|---|---|
| 2023 | $18K | $14K | $26K | $0 | — | View 990 |
| 2022 | $15K | $15K | $1 | $0 | — | View 990 |
| 2021 | $23K | $19K | $22K | $0 | — | View 990 |
| 2020 | $5K | $17K | $23K | $0 | — | View 990 |
| 2019 | $6K | $8K | $35K | $0 | — | View 990 |
| 2018 | $7K | $8K | $1 | $0 | — | View 990 |
| 2017 | $3K | $8K | $37K | $0 | — | View 990 |
| 2016 | $7K | $6K | $42K | $0 | — | View 990 |
| 2015 | $9K | $6K | $41K | $0 | — | View 990 |
| 2014 | $12K | $9K | $37K | $0 | — | View 990 |
| 2013 | $-22,100 | $6K | $34K | $0 | — | View 990 |
| 2012 | $-20,471 | $5K | $62K | $0 | — | View 990 |
| 2011 | $26K | $5K | $87K | $0 | — | View 990 |
Year-by-Year Financial Summary
- 2023: Revenue of $18K, expenses of $14K, and assets of $26K (revenue +23.2% year-over-year).
- 2022: Revenue of $15K, expenses of $15K, and assets of $1 (revenue -35.1% year-over-year).
- 2021: Revenue of $23K, expenses of $19K, and assets of $22K (revenue +329.1% year-over-year).
- 2020: Revenue of $5K, expenses of $17K, and assets of $23K (revenue -11.3% year-over-year).
- 2019: Revenue of $6K, expenses of $8K, and assets of $35K (revenue -17.0% year-over-year).
- 2018: Revenue of $7K, expenses of $8K, and assets of $1 (revenue +138.5% year-over-year).
- 2017: Revenue of $3K, expenses of $8K, and assets of $37K (revenue -54.2% year-over-year).
- 2016: Revenue of $7K, expenses of $6K, and assets of $42K (revenue -25.6% year-over-year).
- 2015: Revenue of $9K, expenses of $6K, and assets of $41K (revenue -22.5% year-over-year).
- 2014: Revenue of $12K, expenses of $9K, and assets of $37K.
- 2013: Revenue of $-22,100, expenses of $6K, and assets of $34K.
- 2012: Revenue of $-20,471, expenses of $5K, and assets of $62K (revenue -178.4% year-over-year).
- 2011: Revenue of $26K, expenses of $5K, and assets of $87K.
View Individual Filing Years
Explore detailed financial data from each IRS 990 filing year for Brookline Historical Society:
Data Sources and Methodology
This transparency report for Brookline Historical Society is generated by NonprofitSpending's AI analysis engine. The data is sourced from publicly available IRS 990 filings accessed through the ProPublica Nonprofit Explorer API and IRS electronic filing records. The Mission Score, spending breakdown, and other analytical insights are produced by artificial intelligence and should be used as one of multiple factors when evaluating a nonprofit organization.
IRS 990 forms are annual information returns that most tax-exempt organizations must file with the IRS. These forms provide detailed financial information including revenue, expenses, assets, liabilities, and compensation of officers. NonprofitSpending processes this data to provide accessible transparency reports for donors, researchers, and the general public.
Disclaimer
AI-generated analysis based on IRS public records. Not financial or legal advice. Verify information directly with the organization.