Civic Intelligence

Acton Historical Society Incorporated

EIN 04-2612423 • 501(c)3 • Acton, MA

Pub. 78 Eligible990-N Coverage

Profile

The Acton Historical Society works to discover, preserve and share facts and artifacts from the rich history of Acton, Massachusetts with the hope of spreading enthusiasm for and knowledge of Acton.

PO Box 2389Acton, MA 01720

www.actonhistoricalsociety.org

Siviq Scores

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

Liabilities / Assets

33rd percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $500k-$1M nonprofits • Source year 2025

Liabilities / Revenue

35th percentile

0.00x

Tied with the lowest-debt nonprofits in its peer group.

501(c)3 • $500k-$1M nonprofits • Source year 2025

Net Margin

4th percentile

-91%

Higher net margin than 4% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Source year 2025

Top Officer Pay

55th percentile

$0

Higher top officer pay than 55% of similar nonprofits.

Top officer pay equals 0.0% of source-year revenue.

501(c)3 • $500k-$1M nonprofits • Source year 2025

Asset Growth

44th percentile

0.8%

Faster asset growth than 44% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Annualized from 2024 to 2025

Revenue Growth

28th percentile

-8.3%

Faster revenue growth than 28% of similar nonprofits.

501(c)3 • $500k-$1M nonprofits • Annualized from 2024 to 2025

Balance Sheet
Liabilities / Assets33rd percentile

Assets

Up

$664,880

Up $5,161 (+0.8%) from 2024

Liabilities

Flat

$0

Flat from 2024

Net Assets

Up

$664,880

Up $5,161 (+0.8%) from 2024

Operations
Liabilities / Revenue35th percentileNet Margin4th percentile

Revenue

Down

$29,421

Down $2,649 (-8.3%) from 2024

Expenses

Up

$56,320

Up $26,256 (+87%) from 2024

Net Income

Down

-$26,899

Down $28,905 (-1441%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth44th percentile

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

$800K$600K$400K$200K$0Assets 2011: $302,144Liabilities 2011: $1,951Net Assets 2011: $300,1932011Assets 2014: $327,696Liabilities 2014: $1,956Net Assets 2014: $325,7402014Assets 2015: $337,924Liabilities 2015: $0Net Assets 2015: $337,9242015Assets 2018: $404,802Liabilities 2018: $0Net Assets 2018: $404,8022018Assets 2019: $569,754Liabilities 2019: $57,530Net Assets 2019: $512,2242019Assets 2020: $619,994Liabilities 2020: $0Net Assets 2020: $619,9942020Assets 2021: $615,802Liabilities 2021: $0Net Assets 2021: $615,8022021Assets 2022: $646,684Liabilities 2022: $0Net Assets 2022: $646,6842022Assets 2023: $657,713Liabilities 2023: $0Net Assets 2023: $657,7132023Assets 2024: $659,719Liabilities 2024: $0Net Assets 2024: $659,7192024Assets 2025: $664,880Liabilities 2025: $0Net Assets 2025: $664,8802025

Highlighted filing

2025

Assets$664,880
Liabilities$0
Net Assets$664,880
Open 2025 Filing

Operations Trend

Revenue Growth28th percentile

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

$150K$100K$50K$0-$50KRevenue 2011: $27,294Expenses 2011: $28,554Net Income 2011: -$1,2602011Revenue 2014: $77,408Expenses 2014: $28,419Net Income 2014: $48,9892014Revenue 2015: $53,263Expenses 2015: $41,079Net Income 2015: $12,1842015Revenue 2018: $76,981Expenses 2018: $23,310Net Income 2018: $53,6712018Revenue 2019: $126,203Expenses 2019: $18,781Net Income 2019: $107,4222019Revenue 2020: $138,861Expenses 2020: $31,091Net Income 2020: $107,7702020Revenue 2021: $32,290Expenses 2021: $36,482Net Income 2021: -$4,1922021Revenue 2022: $57,148Expenses 2022: $26,266Net Income 2022: $30,8822022Revenue 2023: $37,470Expenses 2023: $26,441Net Income 2023: $11,0292023Revenue 2024: $32,070Expenses 2024: $30,064Net Income 2024: $2,0062024Revenue 2025: $29,421Expenses 2025: $56,320Net Income 2025: -$26,8992025

Highlighted filing

2025

Revenue$29,421
Expenses$56,320
Net Income-$26,899
Open 2025 Filing

Filings

Most recent year

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

Open filing
Assets
$664,880
Liabilities
$0
Net assets
$664,880
Revenue
$29,421
Expenses
$56,320
Net income
-$26,899
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$6.65$0.00$6.65$0.29$0.56$0.27
2024Detailed filing. Detailed filing data is available for this year.$6.60$0.00$6.60$0.32$0.30$0.02
2023Detailed filing. Detailed filing data is available for this year.$6.58$0.00$6.58$0.37$0.26$0.11
2022Detailed filing. Detailed filing data is available for this year.$6.47$0.00$6.47$0.57$0.26$0.31
2021Detailed filing. Detailed filing data is available for this year.$6.16$0.00$6.16$0.32$0.36$0.04
2020Detailed filing. Detailed filing data is available for this year.$6.20$0.00$6.20$1.39$0.31$1.08
2019Detailed filing. Detailed filing data is available for this year.$5.70$0.58$5.12$1.26$0.19$1.07
2018Detailed filing. Detailed filing data is available for this year.$4.05$0.00$4.05$0.77$0.23$0.54
2015Detailed filing. Detailed filing data is available for this year.$3.38$0.00$3.38$0.53$0.41$0.12
2014Detailed filing. Detailed filing data is available for this year.$3.28$0.02$3.26$0.77$0.28$0.49
2011Facts available. Structured filing facts are available, but richer extracted sections are limited.$3.02$0.02$3.00$0.27$0.29$0.01
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2024 to Jun 30, 2025
Signed
Apr 15, 2026
Return Version
2024v5.2
Gross Receipts
$51,068
Mission and Program Overview

Mission

The Acton Historical Society works to discover, preserve and share facts and artifacts from the rich history of Acton, Massachusetts with the hope of spreading enthusiasm for and knowledge of Acton.

Balance Sheet Detail
LineBeginningEndChange
Assets
Investments in Publicly Traded Securities$351,237$365,206▲ $13,969
Land, Buildings, and Equipment, Net$307,920$295,360▼ $12,560
Cash and Non-Interest-Bearing Accounts$562$4,314▲ $3,752
Savings and Temporary Cash Investments-$0-
Accounts Receivable-$0-
Other Notes and Loans Receivable, Net-$0-
Pledges and Grants Receivable-$0-
Receivable From Disqualified Prsn-$0-
Receivables From Officers Etc-$0-
Investments Other Securities-$0-
Investments Program Related-$0-
Intangible Assets-$0-
Inventories for Sale or Use-$0-
Prepaid Expenses and Deferred Charges-$0-
Total Assets$659,719$664,880▲ $5,161
Other Assets Total-$0-
Liabilities
Total Liabilities$0$0→ $0
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$659,719$664,880▲ $5,161
Total Net Assets Fund Balance$659,719$664,880▲ $5,161
Total Liabilities and Net Assets / Fund Balance$659,719$664,880▲ $5,161

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$295,360$280,166$575,526
Other Land Buildings-$5,556$5,556
Compensation and Service Providers
Top Officer Pay55th percentile

Board Members and Trustees

NameTitle
William KlauerPresident
Robert PionVice President
Amber KlauerDirector
Christopher ByrnesDirector
Margaret HebertDirector
Nan MillettDirector
Susanne FullerDirector
Lisa SooSecretary
Hartley MillettTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$10,780
Program Service Revenue
$144
Investment Income
$18,497
Other Revenue
$0
All Other Contributions
$8,320
Change in Net Assets
$-26,899
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Other Expenses$56,320
Grants and Similar Amounts Paid$0
Professional Fundraising Fees$0
Salaries, Compensation, and Employee Benefits$0
Total Fundraising Expense$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Occupancy$23,840--$23,840
Depreciation Depletion$12,560--$12,560
Insurance$5,868--$5,868
Fees for Services Accounting-$1,825-$1,825
Other Expenses$25--$25
All Other Expenses$7--$7
Total Functional Expenses$54,495$1,825$0$56,320
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 Disqualified Persons-$0-
Receivables from Officers, Directors, Trustees, and Key Employees-$0-
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Backup withholding compliance
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

Governance Explanations

Form 990, Part VI, Section B, Line 11B

“Reviewed by treasurer.”

Form 990, Part VI, Section C, Line 19

“Massachusetts Attorney General Website.”

Filing and Contact Details

Filer

Filer Name
Acton Historical Society
EIN
04-2612423
Phone
9786218478
Address
PO Box 2389, Acton, MA 01720

Signing Officer

Name
Hart Millett
Title
Treasurer
Signed
2026-04-15
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Hart Millett
Legal Domicile
Ma
Voting Board Members
9
Independent Board Members
9
Employees
0

Preparer

Firm
Vallas & Arrison PC
Address
312 Great Road, Littleton, MA 01460
Preparer
George P Vallas CPA
Phone
9784869855
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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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IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc0Form 990, Part VI, Section B, Line 11b
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990, Part VI, Section C, Line 19
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IRS990/WhistleblowerPolicyInd0false
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd0true
ReturnHeader/BusinessOfficerGrp/PersonNm0Hart Millett
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Treasurer
ReturnHeader/BusinessOfficerGrp/SignatureDt02026-04-15
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0Acton Historical Society
ReturnHeader/Filer/BusinessNameControlTxt0ACTO
ReturnHeader/Filer/EIN0042612423
ReturnHeader/Filer/PhoneNum09786218478
ReturnHeader/Filer/USAddress/AddressLine1Txt0PO Box 2389
ReturnHeader/Filer/USAddress/CityNm0Acton
ReturnHeader/Filer/USAddress/StateAbbreviationCd0MA
ReturnHeader/Filer/USAddress/ZIPCd001720
ReturnHeader/IRSResponsiblePrtyInfoCurrInd0true
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0043215625
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0Vallas & Arrison PC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt0312 Great Road
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0Littleton
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0MA
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd001460
ReturnHeader/PreparerPersonGrp/PhoneNum09784869855
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0George P Vallas CPA
ReturnHeader/ReturnTs02026-04-15T15:42:17-07:00
ReturnHeader/ReturnTypeCd0990
ReturnHeader/TaxPeriodBeginDt02024-07-01
ReturnHeader/TaxPeriodEndDt02025-06-30
ReturnHeader/TaxYr02024

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