Civic Intelligence

The Cornerstone School

EIN 22-2730159 • 501(c)3 • Stratham, NH

View Organization Page

Profile

To provide montessori education to children ages 15 months to 14 years old

146 High StreetStratham, NH 03885

www.cornerstoneschool.org

Siviq Scores

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

Liabilities / Assets

68th percentile

0.22x

Higher debt load relative to assets than 68% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Liabilities / Revenue

69th percentile

0.24x

Higher debt load relative to revenue than 69% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Net Margin

55th percentile

6.7%

Higher net margin than 55% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Source year 2025

Top Officer Pay

Score unavailable

No value available

No filing with officer rows is available for this organization yet.

Asset Growth

75th percentile

17%

Faster asset growth than 75% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

Revenue Growth

60th percentile

13%

Faster revenue growth than 60% of similar nonprofits.

501(c)3 • $1M-$5M nonprofits • Annualized from 2024 to 2025

Balance Sheet
Liabilities / Assets68th percentile

Assets

Up

$3,115,502

Up $455,626 (+17%) from 2024

Liabilities

Up

$679,703

Up $238,701 (+54%) from 2024

Net Assets

Up

$2,435,799

Up $216,925 (+9.8%) from 2024

Operations
Liabilities / Revenue69th percentileNet Margin55th percentile

Revenue

Up

$2,890,588

Up $325,461 (+13%) from 2024

Expenses

Up

$2,697,681

Up $89,154 (+3.4%) from 2024

Net Income

Up

$192,907

Up $236,307 (+544%) from 2024

Trend Graphs

Balance Sheet Trend

Asset Growth75th percentile

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

$4.0M$3.0M$2.0M$1.0M$0Assets 2011: $2,791,818Liabilities 2011: $348,618Net Assets 2011: $2,443,2002011Assets 2012: $2,736,423Liabilities 2012: $240,571Net Assets 2012: $2,495,8522012Assets 2013: $2,760,897Liabilities 2013: $202,272Net Assets 2013: $2,558,6252013Assets 2014: $2,799,659Liabilities 2014: $244,490Net Assets 2014: $2,555,1692014Assets 2015: $2,905,897Liabilities 2015: $321,337Net Assets 2015: $2,584,5602015Assets 2016: $2,889,222Liabilities 2016: $328,891Net Assets 2016: $2,560,3312016Assets 2017: $2,976,847Liabilities 2017: $334,571Net Assets 2017: $2,642,2762017Assets 2018: $2,977,326Liabilities 2018: $304,167Net Assets 2018: $2,673,1592018Assets 2019: $2,976,289Liabilities 2019: $329,495Net Assets 2019: $2,646,7942019Assets 2020: $3,036,752Liabilities 2020: $540,501Net Assets 2020: $2,496,2512020Assets 2021: $2,866,485Liabilities 2021: $313,718Net Assets 2021: $2,552,7672021Assets 2022: $2,734,658Liabilities 2022: $377,134Net Assets 2022: $2,357,5242022Assets 2023: $2,682,571Liabilities 2023: $470,719Net Assets 2023: $2,211,8522023Assets 2024: $2,659,876Liabilities 2024: $441,002Net Assets 2024: $2,218,8742024Assets 2025: $3,115,502Liabilities 2025: $679,703Net Assets 2025: $2,435,7992025

Highlighted filing

2025

Assets$3,115,502
Liabilities$679,703
Net Assets$2,435,799
Open 2025 Filing

Operations Trend

Revenue Growth60th percentile

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

$3.0M$2.0M$1.0M$0-$1.0MRevenue 2011: $1,696,648Expenses 2011: $1,568,204Net Income 2011: $128,4442011Revenue 2012: $1,697,542Expenses 2012: $1,641,977Net Income 2012: $55,5652012Revenue 2013: $1,741,361Expenses 2013: $1,719,313Net Income 2013: $22,0482013Revenue 2014: $1,734,780Expenses 2014: $1,782,257Net Income 2014: -$47,4772014Revenue 2015: $1,971,766Expenses 2015: $1,939,743Net Income 2015: $32,0232015Revenue 2016: $1,989,658Expenses 2016: $1,991,388Net Income 2016: -$1,7302016Revenue 2017: $2,051,500Expenses 2017: $2,008,038Net Income 2017: $43,4622017Revenue 2018: $2,244,501Expenses 2018: $2,207,468Net Income 2018: $37,0332018Revenue 2019: $2,109,814Expenses 2019: $2,153,570Net Income 2019: -$43,7562019Revenue 2020: $1,948,562Expenses 2020: $2,109,393Net Income 2020: -$160,8312020Revenue 2021: $1,995,588Expenses 2021: $2,031,915Net Income 2021: -$36,3272021Revenue 2022: $2,066,541Expenses 2022: $2,151,728Net Income 2022: -$85,1872022Revenue 2023: $2,273,787Expenses 2023: $2,444,517Net Income 2023: -$170,7302023Revenue 2024: $2,565,127Expenses 2024: $2,608,527Net Income 2024: -$43,4002024Revenue 2025: $2,890,588Expenses 2025: $2,697,681Net Income 2025: $192,9072025

Highlighted filing

2025

Revenue$2,890,588
Expenses$2,697,681
Net Income$192,907
Open 2025 Filing

Filings

Most recent year

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

Open filing
Assets
$3,115,502
Liabilities
$679,703
Net assets
$2,435,799
Revenue
$2,890,588
Expenses
$2,697,681
Net income
$192,907
Balance SheetOperations
YearAssetsLiabilitiesNet AssetsRevenueExpensesNet Income
2025Detailed filing. Detailed filing data is available for this year.$3.12$0.68$2.44$2.89$2.70$0.19
2024Detailed filing. Detailed filing data is available for this year.$2.66$0.44$2.22$2.57$2.61$0.04
2023Detailed filing. Detailed filing data is available for this year.$2.68$0.47$2.21$2.27$2.44$0.17
2022Detailed filing. Detailed filing data is available for this year.$2.73$0.38$2.36$2.07$2.15$0.09
2021Detailed filing. Detailed filing data is available for this year.$2.87$0.31$2.55$2.00$2.03$0.04
2020Summary only. Only limited summary data is available for this year.$3.04$0.54$2.50$1.95$2.11$0.16
2019Summary only. Only limited summary data is available for this year.$2.98$0.33$2.65$2.11$2.15$0.04
2018Summary only. Only limited summary data is available for this year.$2.98$0.30$2.67$2.24$2.21$0.04
2017Summary only. Only limited summary data is available for this year.$2.98$0.33$2.64$2.05$2.01$0.04
2016Summary only. Only limited summary data is available for this year.$2.89$0.33$2.56$1.99$1.99$0.00
2015Summary only. Only limited summary data is available for this year.$2.91$0.32$2.58$1.97$1.94$0.03
2014Summary only. Only limited summary data is available for this year.$2.80$0.24$2.56$1.73$1.78$0.05
2013Summary only. Only limited summary data is available for this year.$2.76$0.20$2.56$1.74$1.72$0.02
2012Summary only. Only limited summary data is available for this year.$2.74$0.24$2.50$1.70$1.64$0.06
2011Summary only. Only limited summary data is available for this year.$2.79$0.35$2.44$1.70$1.57$0.13
Latest Filing Detail
Jump To
Filing Snapshot
Filing Period
Jul 1, 2024 to Jun 30, 2025
Signed
Dec 16, 2025
Return Version
2024v5.2
Gross Receipts
$2,970,765
Mission and Program Overview

Mission

To provide montessori education to children ages 15 months to 14 years old

Balance Sheet Detail
LineBeginningEndChange
Assets
Land, Buildings, and Equipment, Net$1,880,904$1,790,357▼ $90,547
Investments in Publicly Traded Securities$555,534$588,217▲ $32,683
Savings and Temporary Cash Investments$102,296$423,720▲ $321,424
Cash and Non-Interest-Bearing Accounts$119,599$305,592▲ $185,993
Other Notes and Loans Receivable, Net$1,116$7,055▲ $5,939
Accounts Receivable$427$561▲ $134
Total Assets$2,659,876$3,115,502▲ $455,626
Liabilities
Deferred Revenue$328,067$460,091▲ $132,024
Unsecured Notes Loans Payable$11,050$145,214▲ $134,164
Accounts Payable and Accrued Expenses$101,885$74,398▼ $27,487
Total Liabilities$441,002$679,703▲ $238,701
Net Assets / Fund Balance
Net Assets Without Donor Restrictions$2,218,874$2,435,799▲ $216,925
Total Net Assets Fund Balance$2,218,874$2,435,799▲ $216,925
Total Liabilities and Net Assets / Fund Balance$2,659,876$3,115,502▲ $455,626

Asset Categories

AssetBook ValueDepreciationBasis
Buildings$1,644,043$2,784,930$4,428,973
Equipment$46,314$559,467$605,781
Land$100,000-$100,000
Compensation and Service Providers
Top Officer PayScore unavailable

Employees

NameTitleFull / Part TimeBaseOtherTotal
Peter ZetlanHead of SchoolFT$140,000$4,000$144,000

Board Members and Trustees

NameTitle
Aaron PetersBoard Chair
Julie KukenbergerVice Chair
Alexandra HamptonDirector
Anne RuozziDirector
Burcu RubiniDirector
Chris YonkerDirector
Erin GarnettDirector
Jeff ZwillenbergDirector
Josh HenlyDirector
Mike RainbothDirector
Ruth RandlettDirector
Shanika AmarakoonDirector
Joanna JaskolkaSecretary
Corey OstmanTreasurer
Revenue and Support

Revenue Composition

Contributions and Grants
$39,673
Program Service Revenue
$2,804,160
Investment Income
$46,469
Other Revenue
$286
All Other Contributions
$39,673
Change in Net Assets
$192,907

Audited Revenue Reconciliation

Revenue per Audited Statements
$2,832,857
Revenue Not Reported on Financial Statements
$57,731
Revenue Not Reported on Form 990
$24,018
Other Revenue Adjustments
$52,368
Total Revenue per Audited Statements
$2,856,875
Total Revenue per Form 990
$2,890,588
Expenses and Functional Allocation

Major Expense Lines

Line ItemAmount
Salaries, Compensation, and Employee Benefits$2,087,719
Other Expenses$557,594
Grants and Similar Amounts Paid$52,368
Total Fundraising Expense$5,440
Professional Fundraising Fees$0

Functional Expense Allocation

Line ItemProgramManagementFundraisingTotal
Other Salaries and Wages$1,451,698$252,766$3,416$1,707,880
Occupancy$172,027$9,054-$181,081
Depreciation Depletion$166,681$5,155-$171,836
Current Officers, Directors, Trustees, and Key Employees$127,202$22,127$321$149,650
Payroll Taxes$116,417$20,270$274$136,961
Grants to Domestic Individuals$52,368--$52,368
Pension Plan Contributions$40,570$7,064$96$47,730
Other Employee Benefits$38,673$6,370$455$45,498
Insurance$36,730$6,049$432$43,211
Office Expenses$23,609$10,265$342$34,216
Fees for Services Accounting-$23,500-$23,500
Fees for Service Investment Mgmnt Fees-$5,363-$5,363
Advertising-$3,951-$3,951
Interest$364$91-$455
Other Expenses$276$4,055$104$276
Total Functional Expenses$2,302,574$389,667$5,440$2,697,681

Audited Expense Reconciliation

Line ItemAmount
Total Expenses per Form 990$2,697,681
Expenses per Audited Statements$2,639,950
Total Expenses per Audited Statements$2,639,950
Expenses Not Reported on Financial Statements$57,731
Other Expense Adjustments$52,368
Expenses Not Reported on Form 990$0
Fundraising, Events, and Gaming
Fundraising activities
No
Gaming activities
No
Professional fundraiser used
No

Fundraising and Gaming Totals

Line ItemAmount
Fundraising Gross Income$286
Fundraising Direct Expenses$0
Professional Fundraising Fees$0
Political and Lobbying Activity
Political campaign activity
No
Lobbying activity
No
Subject to proxy tax
No
Governance and Compliance

Governance Checklist

Compiled or reviewed by an accountant
No
Annual disclosure for covered persons
Yes
Audit committee
Yes
Backup withholding compliance
Yes
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
Yes
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

“The form 990 was reviewed by the board in detail prior to filing. Questions were addressed to the preparer and resolved timely. A final draft version of the return was provided to the full board prior to filing.”

Form 990, Part VI, Section B, Line 12C

“All board members must declare any conflict of interest on a yearly basis to the board. When a conflict of interest or potential conflict of interest arises the event is disclosed to the board and a board vote is taken should it be needed.”

Form 990, Part VI, Section C, Line 19

“The organization's form 990 is available upon request.”

Filing and Contact Details

Filer

Filer Name
The Cornerstone School
EIN
22-2730159
Phone
6037724349
Address
146 HIGH STREET, STRATHAM, NH 03885

Signing Officer

Name
Chris Yonkers
Title
Board Chair
Phone
6037724349
Signed
2025-12-16
Discuss with paid preparer
Yes

Organization Details

Principal Officer
Chris Yonkers
Formed
1985
Legal Domicile
Nh
Voting Board Members
14
Independent Board Members
14
Employees
46
Volunteers
75

Preparer

Firm
Nathan Wechsler & Company Pa
Address
70 COMMERCIAL STREET 4TH FLOOR, CONCORD, NH 03301
Preparer
KELLI D'AMORE
Phone
6032245357
Supplemental Narrative

Additional Explanations

Form 990, Part XII, Line 2C

“No changes from the prior year.”

Financial Statement Notes

PART X, LINE 2:

“The school is a not-for-profit organization exempt from federal and state income tax under section 501(c)(3) of the internal revenue code. The school has adopted the provisions of fasb asc 740, accounting for uncertainty in income taxes. Accordingly, management has evaluated school's tax positions and has concluded that the school had maintained its tax-exempt status and had taken no uncertain tax positions that require adjustment or disclosure in the financial statements. With few exceptions, the cornerstone school is no longer subject to income tax examinations by the u.s. Federal or state tax authorities for years before 2022.”

PART XI, LINE 4B - OTHER ADJUSTMENTS:

“Tuition reported is net of tuition assistance to individuals 52,368.”

PART XII, LINE 4B - OTHER ADJUSTMENTS:

“Tuition reported is net of tuition assistance to individuals 52,368.”

Raw XML AppendixShowing 400 of 515 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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IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt90
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt100
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt110
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt120
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt130
IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt140
IRS990/Form990PartVIISectionAGrp/TitleTxt0BOARD CHAIR
IRS990/Form990PartVIISectionAGrp/TitleTxt1DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt2DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt3DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt4DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt5DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt6DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt7DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt8DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt9DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt10DIRECTOR
IRS990/Form990PartVIISectionAGrp/TitleTxt11SECRETARY
IRS990/Form990PartVIISectionAGrp/TitleTxt12TREASURER
IRS990/Form990PartVIISectionAGrp/TitleTxt13VICE CHAIR
IRS990/Form990PartVIISectionAGrp/TitleTxt14HEAD OF SCHOOL
IRS990/Form990ProvidedToGvrnBodyInd01
IRS990/FormationYr01985
IRS990/FormerOfcrEmployeesListedInd00
IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd0X
IRS990/FSAuditedInd01
IRS990/FundraisingActivitiesInd00
IRS990/FundraisingDirectExpensesAmt00
IRS990/FundraisingGrossIncomeAmt0286
IRS990/GainOrLossGrp/SecuritiesAmt015997
IRS990/GamingActivitiesInd00
IRS990/GoverningBodyVotingMembersCnt014
IRS990/GrantAmt052368
IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt052368
IRS990/GrantsToDomesticIndividualsGrp/TotalAmt052368
IRS990/GrantsToIndividualsInd01
IRS990/GrantsToOrganizationsInd00
IRS990/GrantToRelatedPersonInd00
IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt096174
IRS990/GrossReceiptsAmt02970765
IRS990/GroupReturnForAffiliatesInd00
IRS990/IncludeFIN48FootnoteInd01
IRS990/IndependentAuditFinclStmtInd01
IRS990/IndependentVotingMemberCnt014
IRS990/IndivRcvdGreaterThan100KCnt01
IRS990/IndoorTanningServicesInd00
IRS990/InfoInScheduleOPartVIInd0X
IRS990/InfoInScheduleOPartXIIInd0X
IRS990/InsuranceGrp/FundraisingAmt0432
IRS990/InsuranceGrp/ManagementAndGeneralAmt06049
IRS990/InsuranceGrp/ProgramServicesAmt036730
IRS990/InsuranceGrp/TotalAmt043211
IRS990/InterestGrp/ManagementAndGeneralAmt091
IRS990/InterestGrp/ProgramServicesAmt0364
IRS990/InterestGrp/TotalAmt0455
IRS990/InvestmentIncomeGrp/ExclusionAmt030472
IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt030472
IRS990/InvestmentInJointVentureInd00
IRS990/InvestmentsPubTradedSecGrp/BOYAmt0555534
IRS990/InvestmentsPubTradedSecGrp/EOYAmt0588217
IRS990/IRPDocumentCnt09
IRS990/IRPDocumentW2GCnt00
IRS990/LandBldgEquipAccumDeprecAmt03344397
IRS990/LandBldgEquipBasisNetGrp/BOYAmt01880904
IRS990/LandBldgEquipBasisNetGrp/EOYAmt01790357
IRS990/LandBldgEquipCostOrOtherBssAmt05134754
IRS990/LegalDomicileStateCd0NH
IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt080177
IRS990/LoanOutstandingInd00
IRS990/LobbyingActivitiesInd00
IRS990/LocalChaptersInd00
IRS990/MaterialDiversionOrMisuseInd00
IRS990/MembersOrStockholdersInd00
IRS990/MethodOfAccountingAccrualInd0X
IRS990/MinutesOfCommitteesInd01
IRS990/MinutesOfGoverningBodyInd01
IRS990/MissionDesc0TO PROVIDE MONTESSORI EDUCATION TO CHILDREN AGES 15 MONTHS TO 14 YEARS OLD
IRS990/MoreThan5000KToIndividualsInd00
IRS990/MoreThan5000KToOrgInd00
IRS990/NetAssetsOrFundBalancesBOYAmt02218874
IRS990/NetAssetsOrFundBalancesEOYAmt02435799
IRS990/NetGainOrLossInvestmentsGrp/RelatedOrExemptFuncIncomeAmt015997
IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt015997
IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt0286
IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt0286
IRS990/NetUnrelatedBusTxblIncmAmt00
IRS990/NetUnrlzdGainsLossesInvstAmt024018
IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt02218874
IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt02435799
IRS990/NondeductibleContributionsInd00
IRS990/OccupancyGrp/ManagementAndGeneralAmt09054
IRS990/OccupancyGrp/ProgramServicesAmt0172027
IRS990/OccupancyGrp/TotalAmt0181081
IRS990/OfficeExpensesGrp/FundraisingAmt0342
IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt010265
IRS990/OfficeExpensesGrp/ProgramServicesAmt023609
IRS990/OfficeExpensesGrp/TotalAmt034216
IRS990/OfficerMailingAddressInd00
IRS990/OperateHospitalInd00
IRS990/Organization501c3Ind0X
IRS990/OrganizationFollowsFASB117Ind0X
IRS990/OtherChangesInNetAssetsAmt00
IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt0455
IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt06370
IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt038673
IRS990/OtherEmployeeBenefitsGrp/TotalAmt045498
IRS990/OtherExpensesGrp/Desc0SUPPLIES EXPENSE
IRS990/OtherExpensesGrp/Desc1STAFF DEVELOPMENT
IRS990/OtherExpensesGrp/Desc2TELEPHONE EXPENSE
IRS990/OtherExpensesGrp/Desc3WEBSITE DEVELOPMENT
IRS990/OtherExpensesGrp/FundraisingAmt0104
IRS990/OtherExpensesGrp/ManagementAndGeneralAmt013587
IRS990/OtherExpensesGrp/ManagementAndGeneralAmt14055
IRS990/OtherExpensesGrp/ProgramServicesAmt042351
IRS990/OtherExpensesGrp/ProgramServicesAmt132568
IRS990/OtherExpensesGrp/ProgramServicesAmt21040
IRS990/OtherExpensesGrp/ProgramServicesAmt3276
IRS990/OtherExpensesGrp/TotalAmt055938
IRS990/OtherExpensesGrp/TotalAmt132568
IRS990/OtherExpensesGrp/TotalAmt25199
IRS990/OtherExpensesGrp/TotalAmt3276
IRS990/OtherSalariesAndWagesGrp/FundraisingAmt03416
IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt0252766
IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt01451698
IRS990/OtherSalariesAndWagesGrp/TotalAmt01707880
IRS990/OthNotesLoansReceivableNetGrp/BOYAmt01116
IRS990/OthNotesLoansReceivableNetGrp/EOYAmt07055
IRS990/PartialLiquidationInd00
IRS990/PayPremiumsPrsnlBnftCntrctInd00
IRS990/PayrollTaxesGrp/FundraisingAmt0274
IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt020270
IRS990/PayrollTaxesGrp/ProgramServicesAmt0116417
IRS990/PayrollTaxesGrp/TotalAmt0136961
IRS990/PensionPlanContributionsGrp/FundraisingAmt096
IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt07064
IRS990/PensionPlanContributionsGrp/ProgramServicesAmt040570
IRS990/PensionPlanContributionsGrp/TotalAmt047730
IRS990/PoliticalCampaignActyInd00
IRS990/PrincipalOfficerNm0CHRIS YONKERS
IRS990/ProfessionalFundraisingInd00
IRS990/ProgramServiceRevenueGrp/BusinessCd0611110
IRS990/ProgramServiceRevenueGrp/BusinessCd1611600
IRS990/ProgramServiceRevenueGrp/BusinessCd2611600
IRS990/ProgramServiceRevenueGrp/BusinessCd3611110
IRS990/ProgramServiceRevenueGrp/Desc0TUITION AND FEES
IRS990/ProgramServiceRevenueGrp/Desc1AFTER SCHOOL PROGRAM
IRS990/ProgramServiceRevenueGrp/Desc2SUMMER CAMP
IRS990/ProgramServiceRevenueGrp/Desc3MISCELLANEOUS INCOME
IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt02603837
IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt1183345
IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt212826
IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt34152
IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt02603837
IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt1183345
IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt212826
IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt34152
IRS990/ProhibitedTaxShelterTransInd00
IRS990/PYBenefitsPaidToMembersAmt00
IRS990/PYContributionsGrantsAmt046380
IRS990/PYExcessBenefitTransInd00
IRS990/PYGrantsAndSimilarPaidAmt040438
IRS990/PYInvestmentIncomeAmt028585
IRS990/PYOtherExpensesAmt0575137
IRS990/PYOtherRevenueAmt0915
IRS990/PYProgramServiceRevenueAmt02489247
IRS990/PYRevenuesLessExpensesAmt0-43400
IRS990/PYSalariesCompEmpBnftPaidAmt01992952
IRS990/PYTotalExpensesAmt02608527
IRS990/PYTotalProfFndrsngExpnsAmt00
IRS990/PYTotalRevenueAmt02565127
IRS990/QuidProQuoContributionsInd00
IRS990/RcvFndsToPayPrsnlBnftCntrctInd00
IRS990/ReconcilationRevenueExpnssAmt0192907
IRS990/RegularMonitoringEnfrcInd01
IRS990/RelatedEntityInd00
IRS990/RelatedOrganizationCtrlEntInd00
IRS990/ReportInvestmentsOtherSecInd00
IRS990/ReportLandBuildingEquipmentInd01
IRS990/ReportOtherAssetsInd00
IRS990/ReportOtherLiabilitiesInd00
IRS990/ReportProgramRelatedInvstInd00
IRS990/RevenueAmt02820157
IRS990/SavingsAndTempCashInvstGrp/BOYAmt0102296
IRS990/SavingsAndTempCashInvstGrp/EOYAmt0423720
IRS990ScheduleA/SchoolInd0X
IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorNum0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine10RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine20RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode0RESTRICTED
IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt0RESTRICTED
IRS990/ScheduleBRequiredInd01
IRS990ScheduleD/BuildingsGrp/BookValueAmt01644043
IRS990ScheduleD/BuildingsGrp/DepreciationAmt02784930
IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt04428973
IRS990ScheduleD/EquipmentGrp/BookValueAmt046314
IRS990ScheduleD/EquipmentGrp/DepreciationAmt0559467
IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt0605781
IRS990ScheduleD/ExpensesNotReportedAmt00
IRS990ScheduleD/ExpensesNotRptFinclStmtAmt057731
IRS990ScheduleD/ExpensesSubtotalAmt02639950
IRS990ScheduleD/FootnoteTextInd0X
IRS990ScheduleD/InvestmentExpensesNotIncld2Amt05363
IRS990ScheduleD/InvestmentExpensesNotIncldAmt05363
IRS990ScheduleD/LandGrp/BookValueAmt0100000
IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt0100000
IRS990ScheduleD/NetUnrealizedGainsInvstAmt024018
IRS990ScheduleD/OtherExpensesNotIncludedAmt052368
IRS990ScheduleD/OtherRevenuesNotIncludedAmt052368
IRS990ScheduleD/RevenueNotReportedAmt024018
IRS990ScheduleD/RevenueNotReportedFinclStmtAmt057731
IRS990ScheduleD/RevenueSubtotalAmt02832857
IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt0THE SCHOOL IS A NOT-FOR-PROFIT ORGANIZATION EXEMPT FROM FEDERAL AND STATE INCOME TAX UNDER SECTION 501(C)(3) OF THE INTERNAL REVENUE CODE. THE SCHOOL HAS ADOPTED THE PROVISIONS OF FASB ASC 740, ACCOUNTING FOR UNCERTAINTY IN INCOME TAXES. ACCORDINGLY, MANAGEMENT HAS EVALUATED SCHOOL'S TAX POSITIONS AND HAS CONCLUDED THAT THE SCHOOL HAD MAINTAINED ITS TAX-EXEMPT STATUS AND HAD TAKEN NO UNCERTAIN TAX POSITIONS THAT REQUIRE ADJUSTMENT OR DISCLOSURE IN THE FINANCIAL STATEMENTS. WITH FEW EXCEPTIONS, THE CORNERSTONE SCHOOL IS NO LONGER SUBJECT TO INCOME TAX EXAMINATIONS BY THE U.S. FEDERAL OR STATE TAX AUTHORITIES FOR YEARS BEFORE 2022.
IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt1TUITION REPORTED IS NET OF TUITION ASSISTANCE TO INDIVIDUALS 52,368.
IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt2TUITION REPORTED IS NET OF TUITION ASSISTANCE TO INDIVIDUALS 52,368.
IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc0PART X, LINE 2:
IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc1PART XI, LINE 4B - OTHER ADJUSTMENTS:
IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc2PART XII, LINE 4B - OTHER ADJUSTMENTS:
IRS990ScheduleD/TotalBookValueLandBuildingsAmt01790357
IRS990ScheduleD/TotalExpensesPerForm990Amt02697681
IRS990ScheduleD/TotalRevenuePerForm990Amt02890588
IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt02856875
IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt02639950
IRS990ScheduleE/ComplianceWithRevProc7550Ind01
IRS990ScheduleE/DiscriminateRaceAdmissPlcyInd00
IRS990ScheduleE/DiscriminateRaceAthltProgInd00
IRS990ScheduleE/DiscriminateRaceEducPlcyInd00
IRS990ScheduleE/DiscriminateRaceEmplmFcultyInd00
IRS990ScheduleE/DiscriminateRaceOtherActyInd00

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