Civic Intelligence

Cornerstone Chartered Public School

EIN 33-4632957 • 501(c)3 • Lyme, NH

Profile

Empowering children in the upper valley through a literacy-first public education, and offering families a high quality choice that builds strong readers, critical thinkers, and future leaders.

PO Box 129Lyme, NH 03768

www.cornerstone-cs.org

Siviq Scores

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

Liabilities / Assets

94th percentile

1.22x

Higher debt load relative to assets than 94% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2025

Liabilities / Revenue

98th percentile

4.96x

Higher debt load relative to revenue than 98% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2025

Net Margin

10th percentile

-91%

Higher net margin than 10% of similar nonprofits.

501(c)3 • <$500k nonprofits • Source year 2025

Top Officer Pay

84th percentile

$0

Higher top officer pay than 84% of similar nonprofits.

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

501(c)3 • <$500k nonprofits • Source year 2025

Asset Growth

Score unavailable

No value available

No earlier valid filing was available within the previous three public years.

Source year 2025

Revenue Growth

Score unavailable

No value available

No earlier valid filing was available within the previous three public years.

Source year 2025

Balance Sheet
Liabilities / Assets94th percentile

Assets

$20,420

No earlier filing loaded for comparison.

Liabilities

$25,000

No earlier filing loaded for comparison.

Net Assets

-$4,580

No earlier filing loaded for comparison.

Operations
Liabilities / Revenue98th percentileNet Margin10th percentile

Revenue

$5,045

No earlier filing loaded for comparison.

Expenses

$9,625

No earlier filing loaded for comparison.

Net Income

-$4,580

No earlier filing loaded for comparison.

Trend Graphs

Balance Sheet Trend

Asset GrowthScore unavailable

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

$30K$20K$10K$0-$10KAssets 2025: $20,420Liabilities 2025: $25,000Net Assets 2025: -$4,5802025

Highlighted filing

2025

Assets$20,420
Liabilities$25,000
Net Assets-$4,580
Open 2025 Filing

Operations Trend

Revenue GrowthScore unavailable

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

$10K$5.0K$0-$5.0KRevenue 2025: $5,045Expenses 2025: $9,625Net Income 2025: -$4,5802025

Highlighted filing

2025

Revenue$5,045
Expenses$9,625
Net Income-$4,580
Open 2025 Filing

Filings

Most recent year

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

Open filing
Assets
$20,420
Liabilities
$25,000
Net assets
-$4,580
Revenue
$5,045
Expenses
$9,625
Net income
-$4,580
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$20.4$25.0$4.58$5.05$9.63$4.58
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2024 to Jun 30, 2025
Signed
Nov 15, 2025
Return Version
2024v5.2
Gross Receipts
$5,045
Mission and Program Overview

Mission

Empowering children in the upper valley through a literacy-first public education, and offering families a high quality choice that builds strong readers, critical thinkers, and future leaders.

Program Services

DescriptionGrantsExpenses
Providing literacy-focused public education to New Hampshire Uppervalley students grades K-3.$5,037$0
Compensation and Service Providers
Top Officer Pay84th percentile

Employees

NameTitleFull / Part TimeBaseOtherTotal
Lynne A HowardExecutive DirectorFT$0--
Adam BristolChair-$0--
Frank PerottiVice Chair-$0--
Lindsay WadleighSecretary; Marketing Chair-$0--
Rebecca OwensTreasurer-$0--
Hollace BristolTrustee-$0--
Alexandra DesRuisseauxTrustee; Fundraising Chair-$0--
Maura HartTrustee-$0--
Filing and Contact Details

Filer

Filer Name
Cornerstone Chartered Public School
EIN
33-4632957
Phone
6036784778
Address
PO Box 129, Lyme, NH 03768

Signing Officer

Name
Lynne A Howard
Title
Executive Director
Phone
6036784778
Signed
2025-11-15

Preparer

Firm
VeroffCPA PC
Address
174 Court St, Laconia, NH 03246
Preparer
Steven M Veroff CPA
Phone
6035278721
Supplemental Narrative

Additional Explanations

Form 990EZ, Part II, Line 24

“Accounts receivable 5037.”

Form 990EZ, Part II, Line 24

“Prepaid Expenses 412.”

Form 990EZ, Part II, Line 26

“Accounts payable 5000.”

Form 990EZ, Part II, Line 26

“Note payable 20000.”

Raw XML Appendix181 raw XML fields

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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IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt50
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IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt70
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm0Lynne A Howard
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm1Adam Bristol
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm2Frank Perotti
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm3Lindsay Wadleigh
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm4Rebecca Owens
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm5Hollace Bristol
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm6Alexandra DesRuisseaux
IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm7Maura Hart
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt0Executive Director
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt1Chair
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt2Vice Chair
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IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt4Treasurer
IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt5Trustee
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IRS990EZ/OperateHospitalInd0false
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IRS990EZ/OrganizationDissolvedEtcInd0false
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IRS990EZ/OtherAssetsTotalDetail/EOYAmt05449
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IRS990EZ/PartVIOfCompOfHghstPdEmplTxt0NONE
IRS990EZ/PoliticalCampaignActyInd0false
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IRS990EZ/PrintingPublicationsPostageAmt025
IRS990EZ/ProgramServiceRevenueAmt00
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IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt05037
IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt00
IRS990EZ/ProhibitedTaxShelterTransInd0false
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IRS990EZ/SpecialEventsDirectExpensesAmt00
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IRS990EZ/SubjectToProxyTaxInd0false
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IRS990EZ/TotalExpensesAmt09625
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IRS990ScheduleA/InvestmentIncomeCYPct00
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IRS990ScheduleA/SchoolInd0X
IRS990ScheduleE/ComplianceWithRevProc7550Ind0true
IRS990ScheduleE/DiscriminateRaceAdmissPlcyInd0false
IRS990ScheduleE/DiscriminateRaceAthltProgInd0false
IRS990ScheduleE/DiscriminateRaceEducPlcyInd0false
IRS990ScheduleE/DiscriminateRaceEmplmFcultyInd0false
IRS990ScheduleE/DiscriminateRaceOtherActyInd0false
IRS990ScheduleE/DiscriminateRaceSchsInd0false
IRS990ScheduleE/DiscriminateRaceStdntsRghtsInd0false
IRS990ScheduleE/DiscriminateRaceUseOfFcltsInd0false
IRS990ScheduleE/GovernmentFinancialAidRcvdInd0true
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IRS990ScheduleE/MaintainCpyOfAllSolInd0true
IRS990ScheduleE/MaintainCpyOfBrochuresEtcInd0true
IRS990ScheduleE/MaintainRacialCompRecsInd0true
IRS990ScheduleE/MaintainScholarshipsRecsInd0true
IRS990ScheduleE/NondiscriminatoryPolicyStmtInd0true
IRS990ScheduleE/PlcyPblczdViaBroadcastMediaInd0true
IRS990ScheduleE/PolicyStmtInBrochuresEtcInd0true
IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt0School charter document available for download on the Schools website.
IRS990ScheduleE/SupplementalInformationDetail/ExplanationTxt1The School receives federal grants passed through the State of New Hampshires Department of Education.
IRS990ScheduleE/SupplementalInformationDetail/FormAndLineReferenceDesc0Line 3
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IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt0Accounts receivable 5037.
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IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc1Form 990EZ, Part II, Line 24
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc2Form 990EZ, Part II, Line 26
IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc3Form 990EZ, Part II, Line 26
ReturnHeader/BuildTS02025-03-06 01:10:19Z
ReturnHeader/BusinessOfficerGrp/PersonNm0Lynne A Howard
ReturnHeader/BusinessOfficerGrp/PersonTitleTxt0Executive Director
ReturnHeader/BusinessOfficerGrp/PhoneNum06036784778
ReturnHeader/BusinessOfficerGrp/SignatureDt02025-11-15
ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt0Cornerstone Chartered Public School
ReturnHeader/Filer/BusinessNameControlTxt0CORN
ReturnHeader/Filer/EIN0334632957
ReturnHeader/Filer/PhoneNum06036784778
ReturnHeader/Filer/USAddress/AddressLine1Txt0PO Box 129
ReturnHeader/Filer/USAddress/CityNm0Lyme
ReturnHeader/Filer/USAddress/StateAbbreviationCd0NH
ReturnHeader/Filer/USAddress/ZIPCd003768
ReturnHeader/IRSResponsiblePrtyInfoCurrInd0true
ReturnHeader/PreparerFirmGrp/PreparerFirmEIN0923723175
ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt0VeroffCPA PC
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt0174 Court St
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm0Laconia
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd0NH
ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd003246
ReturnHeader/PreparerPersonGrp/PhoneNum06035278721
ReturnHeader/PreparerPersonGrp/PreparationDt02025-10-28
ReturnHeader/PreparerPersonGrp/PreparerPersonNm0Steven M Veroff CPA
ReturnHeader/ReturnTs02025-10-28T05:32:01-07:00
ReturnHeader/ReturnTypeCd0990EZ
ReturnHeader/TaxPeriodBeginDt02024-07-01
ReturnHeader/TaxPeriodEndDt02025-06-30
ReturnHeader/TaxYr02024

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