FURP.ORG / PUBLIC DATA EXPLORER

SONOMA LEAGUE FOR HISTORIC PRESERVATION: Form 990, tax year 2024

View the entire original 990 at ProPublica ↗

Organization
SONOMA LEAGUE FOR HISTORIC PRESERVATION (EIN 23-7358957)
Tax period
2024-01-01 to 2024-12-31
Filed
2025-11-13
IRS object ID
202503179349310730
Schema version
2024v5.2
Source
Download XML · Original 990 at ProPublica

Every field in the e-filed return. Faint text is the IRS element name, for citing.

Return header ReturnHeader

FieldValueIRS element (for citing)
Return2025-11-13T17:40:02-06:00ReturnTs
Tax Period End2024-12-31TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

FieldValueIRS element (for citing)
Preparer Firm EIN900952573PreparerFirmEIN

Preparer Firm Name PreparerFirmName

FieldValueIRS element (for citing)
Business Name Line1UNICOM TAX SERVICESBusinessNameLine1Txt

Preparer US Address PreparerUSAddress

FieldValueIRS element (for citing)
Address Line1755 BroadwayAddressLine1Txt
CitySONOMACityNm
State AbbreviationCAStateAbbreviationCd
ZIP95476ZIPCd
FieldValueIRS element (for citing)
Return Type990ReturnTypeCd
Tax Period Begin2024-01-01TaxPeriodBeginDt

Filer Filer

FieldValueIRS element (for citing)
EIN237358957EIN

Business Name BusinessName

FieldValueIRS element (for citing)
Business Name Line1Sonoma League for Historic PreservationBusinessNameLine1Txt
FieldValueIRS element (for citing)
In Care Of% Mary SzykownyInCareOfNm
Business Name ControlSONOBusinessNameControlTxt
Phone7079388023PhoneNum

US Address USAddress

FieldValueIRS element (for citing)
Address Line1PO Box 766AddressLine1Txt
CitySonomaCityNm
State AbbreviationCAStateAbbreviationCd
ZIP95476ZIPCd

Business Officer BusinessOfficerGrp

FieldValueIRS element (for citing)
PersonMARY SZYKOWNYPersonNm
Person TitleTreasurerPersonTitleTxt
Phone7079388023PhoneNum
Signature2025-11-13SignatureDt
Discuss With Paid PreparerfalseDiscussWithPaidPreparerInd
FieldValueIRS element (for citing)
IRS Responsible Prty Info CurrYes (true)IRSResponsiblePrtyInfoCurrInd

Preparer Person PreparerPersonGrp

FieldValueIRS element (for citing)
Preparer PersonJACK DING EAPreparerPersonNm
PTINP00530494PTIN
Phone7073431898PhoneNum
Preparation2025-11-13PreparationDt
FieldValueIRS element (for citing)
Tax2024TaxYr
Build TS2025-03-06 01:10:19ZBuildTS

Form 990 IRS990

FieldValueIRS element (for citing)
Principal OfficerMary SzykownyPrincipalOfficerNm

US Address USAddress

FieldValueIRS element (for citing)
Address Line1PO Box 766AddressLine1Txt
CitySonomaCityNm
State AbbreviationCAStateAbbreviationCd
ZIP95476ZIPCd
FieldValueIRS element (for citing)
Gross Receipts$77,448GrossReceiptsAmt
Group Return For AffiliatesfalseGroupReturnForAffiliatesInd
Organization501c3Yes (X)Organization501c3Ind
Website Addresspreservesonoma.orgWebsiteAddressTxt
Type Of Organization CorpYes (X)TypeOfOrganizationCorpInd
Formation1972FormationYr
Legal Domicile StateCALegalDomicileStateCd
Activity Or MissionEducate promote interest in and advocate for the preservation of historic buildings neighborhoods and landscapes in the cityActivityOrMissionDesc
Voting Members Governing Body5VotingMembersGoverningBodyCnt
Voting Members Independent5VotingMembersIndependentCnt
Total Employee0TotalEmployeeCnt
Total Gross UBI$0TotalGrossUBIAmt
Net Unrelated Bus Txbl Incm$0NetUnrelatedBusTxblIncmAmt
PY Contributions Grants$44,404PYContributionsGrantsAmt
CY Contributions Grants$39,394CYContributionsGrantsAmt
PY Program Service Revenue$22,380PYProgramServiceRevenueAmt
CY Program Service Revenue$9,981CYProgramServiceRevenueAmt
PY Investment Income$197PYInvestmentIncomeAmt
CY Investment Income$0CYInvestmentIncomeAmt
PY Other Revenue$12,924PYOtherRevenueAmt
CY Other Revenue-$10,674CYOtherRevenueAmt
PY Total Revenue$79,905PYTotalRevenueAmt
CY Total Revenue$38,701CYTotalRevenueAmt
CY Grants And Similar Paid$0CYGrantsAndSimilarPaidAmt
CY Benefits Paid To Members$0CYBenefitsPaidToMembersAmt
PY Salaries Comp Emp Bnft Paid$15,000PYSalariesCompEmpBnftPaidAmt
CY Salaries Comp Emp Bnft Paid$15,000CYSalariesCompEmpBnftPaidAmt
CY Total Prof Fndrsng Expns$0CYTotalProfFndrsngExpnsAmt
CY Total Fundraising Expense$9,371CYTotalFundraisingExpenseAmt
PY Other Expenses$60,560PYOtherExpensesAmt
CY Other Expenses$26,971CYOtherExpensesAmt
PY Total Expenses$75,560PYTotalExpensesAmt
CY Total Expenses$41,971CYTotalExpensesAmt
PY Revenues Less Expenses$4,345PYRevenuesLessExpensesAmt
CY Revenues Less Expenses-$3,270CYRevenuesLessExpensesAmt
Total Assets BOY$743,619TotalAssetsBOYAmt
Total Assets EOY$738,308TotalAssetsEOYAmt
Total Liabilities EOY$0TotalLiabilitiesEOYAmt
Net Assets Or Fund Balances BOY$743,619NetAssetsOrFundBalancesBOYAmt
Net Assets Or Fund Balances EOY$738,308NetAssetsOrFundBalancesEOYAmt
MissionThe mission is to educate, promote interest in, and advocate for the preservation of historic buildings, neighborhoods, and landscapes in the City of Sonoma and Sonoma Valley.MissionDesc
Significant New Program SrvcfalseSignificantNewProgramSrvcInd
Significant ChangefalseSignificantChangeInd
Expense$41,971ExpenseAmt
Revenue$38,701RevenueAmt
DescMaintanining and staffing of historic structures, including a library and various exhibits.Desc
Total Program Service Expenses$41,971TotalProgramServiceExpensesAmt
Described In Section501c3falseDescribedInSection501c3Ind
Schedule B RequiredfalseScheduleBRequiredInd
Political Campaign ActyfalsePoliticalCampaignActyInd
Lobbying ActivitiesfalseLobbyingActivitiesInd
Subject To Proxy TaxfalseSubjectToProxyTaxInd
Donor Advised FundfalseDonorAdvisedFundInd
Conservation EasementsfalseConservationEasementsInd
Collections Of ArtfalseCollectionsOfArtInd
Credit CounselingfalseCreditCounselingInd
Donor Rstr Or Quasi EndowmentsfalseDonorRstrOrQuasiEndowmentsInd
Report Land Building EquipmentYes (true)ReportLandBuildingEquipmentInd
Report Investments Other SecfalseReportInvestmentsOtherSecInd
Report Program Related InvstfalseReportProgramRelatedInvstInd
Report Other AssetsfalseReportOtherAssetsInd
Report Other LiabilitiesfalseReportOtherLiabilitiesInd
Include FIN48 FootnotefalseIncludeFIN48FootnoteInd
Independent Audit Fincl StmtfalseIndependentAuditFinclStmtInd
Consolidated Audit Fincl StmtfalseConsolidatedAuditFinclStmtInd
School OperatingfalseSchoolOperatingInd
Foreign OfficefalseForeignOfficeInd
Foreign ActivitiesfalseForeignActivitiesInd
More Than5000 K To OrgfalseMoreThan5000KToOrgInd
More Than5000 K To IndividualsfalseMoreThan5000KToIndividualsInd
Professional FundraisingfalseProfessionalFundraisingInd
Fundraising ActivitiesfalseFundraisingActivitiesInd
Gaming ActivitiesfalseGamingActivitiesInd
Operate HospitalfalseOperateHospitalInd
Grants To OrganizationsfalseGrantsToOrganizationsInd
Grants To IndividualsfalseGrantsToIndividualsInd
Schedule J RequiredfalseScheduleJRequiredInd
Tax Exempt BondsfalseTaxExemptBondsInd
Engaged In Excess Benefit TransfalseEngagedInExcessBenefitTransInd
PY Excess Benefit TransfalsePYExcessBenefitTransInd
Loan OutstandingfalseLoanOutstandingInd
Grant To Related PersonfalseGrantToRelatedPersonInd
Business Rln With Org MemfalseBusinessRlnWithOrgMemInd
Business Rln With Fam MemfalseBusinessRlnWithFamMemInd
Business Rln With35 Ctrl EntfalseBusinessRlnWith35CtrlEntInd
Deductible Non Cash ContrifalseDeductibleNonCashContriInd
Deductible Art ContributionfalseDeductibleArtContributionInd
Terminate OperationsfalseTerminateOperationsInd
Partial LiquidationfalsePartialLiquidationInd
Disregarded EntityfalseDisregardedEntityInd
Related EntityfalseRelatedEntityInd
Related Organization Ctrl EntfalseRelatedOrganizationCtrlEntInd
Transaction With Control EntfalseTransactionWithControlEntInd
Trnsfr Exmpt Non Chrtbl Rltd OrgfalseTrnsfrExmptNonChrtblRltdOrgInd
Activities Conducted PrtshpfalseActivitiesConductedPrtshpInd
Schedule O RequiredYes (true)ScheduleORequiredInd
IRP Document0IRPDocumentCnt
IRP Document W2 G0IRPDocumentW2GCnt
Backup Wthld CompliancefalseBackupWthldComplianceInd
Employee0EmployeeCnt
Unrelated Bus Incm Over LimitfalseUnrelatedBusIncmOverLimitInd
Foreign Financial AccountfalseForeignFinancialAccountInd
Prohibited Tax Shelter TransfalseProhibitedTaxShelterTransInd
Taxable Party NotificationfalseTaxablePartyNotificationInd
Nondeductible ContributionsfalseNondeductibleContributionsInd
Indoor Tanning ServicesfalseIndoorTanningServicesInd
Subj To Tax Rmnrtn Ex Prcht PymtfalseSubjToTaxRmnrtnExPrchtPymtInd
Subject To Excs Tax Net Invst IncfalseSubjectToExcsTaxNetInvstIncInd
Excs Tax Sect4951 Or4952 Or4953falseExcsTaxSect4951Or4952Or4953Ind
Info In Schedule O Part VIYes (X)InfoInScheduleOPartVIInd
Governing Body Voting Members5GoverningBodyVotingMembersCnt
Independent Voting Member5IndependentVotingMemberCnt
Family Or Business RlnfalseFamilyOrBusinessRlnInd
Delegation Of Mgmt DutiesfalseDelegationOfMgmtDutiesInd
Change To Org DocumentsfalseChangeToOrgDocumentsInd
Material Diversion Or MisusefalseMaterialDiversionOrMisuseInd
Members Or StockholdersfalseMembersOrStockholdersInd
Election Of Board MembersfalseElectionOfBoardMembersInd
Decisions Subject To ApprovafalseDecisionsSubjectToApprovaInd
Minutes Of Governing BodyfalseMinutesOfGoverningBodyInd
Minutes Of CommitteesfalseMinutesOfCommitteesInd
Officer Mailing AddressfalseOfficerMailingAddressInd
Local ChaptersfalseLocalChaptersInd
Form990 Provided To Gvrn BodyfalseForm990ProvidedToGvrnBodyInd
Conflict Of Interest PolicyfalseConflictOfInterestPolicyInd
Whistleblower PolicyfalseWhistleblowerPolicyInd
Document Retention PolicyfalseDocumentRetentionPolicyInd
Compensation Process CEOfalseCompensationProcessCEOInd
Compensation Process OtherfalseCompensationProcessOtherInd
Investment In Joint VenturefalseInvestmentInJointVentureInd

Books In Care Of Detail BooksInCareOfDetail

FieldValueIRS element (for citing)
PersonMARY SZYKOWNYPersonNm
Phone7072909067PhoneNum

US Address USAddress

FieldValueIRS element (for citing)
Address Line1PO Box 766AddressLine1Txt
CitySonomaCityNm
State AbbreviationCAStateAbbreviationCd
ZIP95476ZIPCd
FieldValueIRS element (for citing)
No Listed Persons CompensatedYes (X)NoListedPersonsCompensatedInd

Form990 Part VII Section A Form990PartVIISectionAGrp (5 entries)

TitleTitleTxtAverage Hours Per WeekAverageHoursPerWeekRtAverage Hours Per Week Rltd OrgAverageHoursPerWeekRltdOrgRtIndividual Trustee Or DirectorIndividualTrusteeOrDirectorIndOfficerOfficerIndReportable Comp From OrgReportableCompFromOrgAmtReportable Comp From Rltd OrgReportableCompFromRltdOrgAmtOther CompensationOtherCompensationAmt
MARY SZYKOWNY
Treasurer2.000.00Yes (X)Yes (X)$0$0$0
CHIP ALLEN
President2.000.00Yes (X)Yes (X)$0$0$0
BILL WISIALOWSKI
Director2.000.00Yes (X)$0$0$0
SHAREL MCVEY
Director2.000.00Yes (X)$0$0$0
LINDA JACKSON
Secretary2.000.00Yes (X)$0$0$0
FieldValueIRS element (for citing)
Total Reportable Comp From Org$0TotalReportableCompFromOrgAmt
Tot Reportable Comp Rltd Org$0TotReportableCompRltdOrgAmt
Total Other Compensation$0TotalOtherCompensationAmt
Indiv Rcvd Greater Than100 K0IndivRcvdGreaterThan100KCnt
Former Ofcr Employees ListedfalseFormerOfcrEmployeesListedInd
Total Comp Greater Than150 KfalseTotalCompGreaterThan150KInd
Compensation From Other SrcsfalseCompensationFromOtherSrcsInd
Membership Dues$3,835MembershipDuesAmt
Fundraising$1,385FundraisingAmt
Government Grants$2,500GovernmentGrantsAmt
All Other Contributions$31,674AllOtherContributionsAmt
Total Contributions$39,394TotalContributionsAmt

Program Service Revenue ProgramServiceRevenueGrp

FieldValueIRS element (for citing)
DescOther RentalDesc
Total Revenue Column$9,981TotalRevenueColumnAmt
Related Or Exempt Func Income$9,981RelatedOrExemptFuncIncomeAmt
FieldValueIRS element (for citing)
Total Program Service Revenue$9,981TotalProgramServiceRevenueAmt

Gross Rents GrossRentsGrp

FieldValueIRS element (for citing)
Real$21,420RealAmt
Personal$6,653PersonalAmt

Less Rental Expenses LessRentalExpensesGrp

FieldValueIRS element (for citing)
Real$38,472RealAmt
Personal$275PersonalAmt

Rental Income Or Loss RentalIncomeOrLossGrp

FieldValueIRS element (for citing)
Real-$17,052RealAmt
Personal$6,378PersonalAmt

Net Rental Income Or Loss NetRentalIncomeOrLossGrp

FieldValueIRS element (for citing)
Total Revenue Column-$10,674TotalRevenueColumnAmt

Net Incm From Fundraising Evt NetIncmFromFundraisingEvtGrp

FieldValueIRS element (for citing)
Total Revenue Column$0TotalRevenueColumnAmt

Total Revenue TotalRevenueGrp

FieldValueIRS element (for citing)
Total Revenue Column$38,701TotalRevenueColumnAmt
Related Or Exempt Func Income$9,981RelatedOrExemptFuncIncomeAmt
Unrelated Business Revenue$0UnrelatedBusinessRevenueAmt
Exclusion$0ExclusionAmt

Comp Current Ofcr Directors CompCurrentOfcrDirectorsGrp

FieldValueIRS element (for citing)
Total$15,000TotalAmt
Management And General$15,000ManagementAndGeneralAmt

Fees For Services Management FeesForServicesManagementGrp

FieldValueIRS element (for citing)
Total$3,137TotalAmt
Program Services$147ProgramServicesAmt
Management And General$68ManagementAndGeneralAmt
Fundraising$2,922FundraisingAmt

Fees For Services Accounting FeesForServicesAccountingGrp

FieldValueIRS element (for citing)
Total$1,375TotalAmt
Management And General$1,375ManagementAndGeneralAmt

Advertising AdvertisingGrp

FieldValueIRS element (for citing)
Total$5,433TotalAmt
Program Services$504ProgramServicesAmt
Management And General$3,776ManagementAndGeneralAmt
Fundraising$1,153FundraisingAmt

Office Expenses OfficeExpensesGrp

FieldValueIRS element (for citing)
Total$2,160TotalAmt
Management And General$2,132ManagementAndGeneralAmt
Fundraising$28FundraisingAmt

Occupancy OccupancyGrp

FieldValueIRS element (for citing)
Total$9,868TotalAmt
Program Services$371ProgramServicesAmt
Management And General$4,229ManagementAndGeneralAmt
Fundraising$5,268FundraisingAmt

Insurance InsuranceGrp

FieldValueIRS element (for citing)
Total$4,413TotalAmt
Management And General$4,413ManagementAndGeneralAmt

Other Expenses OtherExpensesGrp (2 entries)

DescDescTotalTotalAmtManagement And GeneralManagementAndGeneralAmt
Dues & Subscriptions$535$535
Tax$50$50

Total Functional Expenses TotalFunctionalExpensesGrp

FieldValueIRS element (for citing)
Total$41,971TotalAmt
Program Services$1,022ProgramServicesAmt
Management And General$31,578ManagementAndGeneralAmt
Fundraising$9,371FundraisingAmt

Savings And Temp Cash Invst SavingsAndTempCashInvstGrp

FieldValueIRS element (for citing)
BOY$73,932BOYAmt
EOY$65,835EOYAmt
FieldValueIRS element (for citing)
Land Bldg Equip Cost Or Other Bss$669,687LandBldgEquipCostOrOtherBssAmt

Land Bldg Equip Basis Net LandBldgEquipBasisNetGrp

FieldValueIRS element (for citing)
BOY$669,687BOYAmt
EOY$669,687EOYAmt

Other Assets Total OtherAssetsTotalGrp

FieldValueIRS element (for citing)
EOY$2,786EOYAmt

Total Assets TotalAssetsGrp

FieldValueIRS element (for citing)
BOY$743,619BOYAmt
EOY$738,308EOYAmt

Total Liabilities TotalLiabilitiesGrp

FieldValueIRS element (for citing)
BOY$0BOYAmt
EOY$0EOYAmt
FieldValueIRS element (for citing)
Organization Follows FASB117Yes (X)OrganizationFollowsFASB117Ind

No Donor Restriction Net Assets NoDonorRestrictionNetAssetsGrp

FieldValueIRS element (for citing)
BOY$743,619BOYAmt
EOY$738,308EOYAmt

Total Net Assets Fund Balance TotalNetAssetsFundBalanceGrp

FieldValueIRS element (for citing)
BOY$743,619BOYAmt
EOY$738,308EOYAmt

Tot Liab Net Assets Fund Balance TotLiabNetAssetsFundBalanceGrp

FieldValueIRS element (for citing)
BOY$743,619BOYAmt
EOY$738,308EOYAmt
FieldValueIRS element (for citing)
Reconcilation Revenue Expnss-$3,270ReconcilationRevenueExpnssAmt
Other Changes In Net Assets$0OtherChangesInNetAssetsAmt
Method Of Accounting CashYes (X)MethodOfAccountingCashInd
Accountant Compile Or ReviewfalseAccountantCompileOrReviewInd
FS AuditedfalseFSAuditedInd

Schedule A IRS990ScheduleA

FieldValueIRS element (for citing)
Publicly Supported Org509a2Yes (X)PubliclySupportedOrg509a2Ind

Gifts Grants Contris Rcvd509 GiftsGrantsContrisRcvd509Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$33,033CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$51,910CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$59,856CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$79,905CurrentTaxYearMinus1YearAmt
Current Tax Year$38,701CurrentTaxYearAmt
Total$263,405TotalAmt

Total509 Total509Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$33,033CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$51,910CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$59,856CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$79,905CurrentTaxYearMinus1YearAmt
Current Tax Year$38,701CurrentTaxYearAmt
Total$263,405TotalAmt

Subst And Dsqlfy Prsns Tot SubstAndDsqlfyPrsnsTotGrp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$0CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$0CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$0CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$0CurrentTaxYearMinus1YearAmt
Current Tax Year$0CurrentTaxYearAmt
Total$0TotalAmt
FieldValueIRS element (for citing)
Public Support Total509$263,405PublicSupportTotal509Amt

Gross Investment Income509 GrossInvestmentIncome509Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$1,225CurrentTaxYearMinus4YearsAmt
Total$1,225TotalAmt

Investment Income And UBTI InvestmentIncomeAndUBTIGrp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$1,225CurrentTaxYearMinus4YearsAmt
Total$1,225TotalAmt

Total Support Calendar Year TotalSupportCalendarYearGrp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$34,258CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$51,910CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$59,856CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$79,905CurrentTaxYearMinus1YearAmt
Current Tax Year$38,701CurrentTaxYearAmt
Total$264,630TotalAmt
FieldValueIRS element (for citing)
Public Support CY5090.99540PublicSupportCY509Pct
Public Support PY5090.99455PublicSupportPY509Pct
Investment Income CY0.00000InvestmentIncomeCYPct
Investment Income PY0.00545InvestmentIncomePYPct
Thirty Thr Pct Suprt Tests CY509Yes (X)ThirtyThrPctSuprtTestsCY509Ind

Schedule D IRS990ScheduleD

Buildings BuildingsGrp

FieldValueIRS element (for citing)
Other Cost Or Other Basis$669,687OtherCostOrOtherBasisAmt
Book Value$669,687BookValueAmt
FieldValueIRS element (for citing)
Total Book Value Land Buildings$669,687TotalBookValueLandBuildingsAmt

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (4 entries)

Form And Line ReferenceFormAndLineReferenceDescExplanationExplanationTxt
Part VI Line 11bUpon Request
Part VI Line 19Upon Request
Line 11bUpon Request
Line 19Upon Request