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TAMALPAIS AQUATIC MASTERS: Form 990EZ, tax year 2025

View the entire original 990 at ProPublica ↗

Organization
TAMALPAIS AQUATIC MASTERS (EIN 94-2690359)
Tax period
2025-01-01 to 2025-12-31
Filed
2026-06-15
IRS object ID
202601669349200140
Schema version
2025v4.1
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)
Return2026-06-15T09:23:13-07:00ReturnTs
Tax Period End2025-12-31TaxPeriodEndDt

Preparer Firm PreparerFirmGrp

FieldValueIRS element (for citing)
Preparer Firm EIN883469983PreparerFirmEIN

Preparer Firm Name PreparerFirmName

FieldValueIRS element (for citing)
Business Name Line1OConnor & CompanyBusinessNameLine1Txt

Preparer US Address PreparerUSAddress

FieldValueIRS element (for citing)
Address Line11701 Novato Blvd Ste 302AddressLine1Txt
CityNovatoCityNm
State AbbreviationCAStateAbbreviationCd
ZIP94947ZIPCd
FieldValueIRS element (for citing)
Return Type990EZReturnTypeCd
Tax Period Begin2025-01-01TaxPeriodBeginDt

Filer Filer

FieldValueIRS element (for citing)
EIN942690359EIN

Business Name BusinessName

FieldValueIRS element (for citing)
Business Name Line1Tamalpais Aquatic MastersBusinessNameLine1Txt
FieldValueIRS element (for citing)
Business Name ControlTAMABusinessNameControlTxt
Phone4154539563PhoneNum

US Address USAddress

FieldValueIRS element (for citing)
Address Line1PO Box 150516AddressLine1Txt
CitySan RafaelCityNm
State AbbreviationCAStateAbbreviationCd
ZIP94915ZIPCd

Business Officer BusinessOfficerGrp

FieldValueIRS element (for citing)
PersonBrianna CastaldoPersonNm
Person TitleTreasurerPersonTitleTxt
Signature2026-06-15SignatureDt
Discuss With Paid PreparerYes (true)DiscussWithPaidPreparerInd

Preparer Person PreparerPersonGrp

FieldValueIRS element (for citing)
Preparer PersonMichael O'ConnorPreparerPersonNm
PTINP01338996PTIN
Phone4154571215PhoneNum
FieldValueIRS element (for citing)
Tax2025TaxYr
Build TS2025-03-06 01:10:19ZBuildTS

Form 990-EZ IRS990EZ

FieldValueIRS element (for citing)
Method Of Accounting AccrualYes (X)MethodOfAccountingAccrualInd
Schedule B Not RequiredYes (X)ScheduleBNotRequiredInd
Website Addresswww.tammasters.orgWebsiteAddressTxt
Organization501c3Yes (X)Organization501c3Ind
Type Of Organization CorpYes (X)TypeOfOrganizationCorpInd
Gross Receipts$139,385GrossReceiptsAmt
Info In Schedule O Part IYes (X)InfoInScheduleOPartIInd
Contributions Gifts Grants Etc$17,355ContributionsGiftsGrantsEtcAmt
Membership Dues$118,210MembershipDuesAmt
Investment Income$4InvestmentIncomeAmt
Cost Or Other Basis Expense Sale$0CostOrOtherBasisExpenseSaleAmt
Fundraising Gross Income$3,816FundraisingGrossIncomeAmt
Special Events Direct Expenses$0SpecialEventsDirectExpensesAmt
Special Events Net Income Loss$3,816SpecialEventsNetIncomeLossAmt
Cost Of Goods Sold$0CostOfGoodsSoldAmt
Total Revenue$139,385TotalRevenueAmt
Salaries Other Comp Empl Bnft$72,510SalariesOtherCompEmplBnftAmt
Fees And Other Pymt To Ind Cntrct$5,710FeesAndOtherPymtToIndCntrctAmt
Occupancy Rent Utlts And Maint$48,002OccupancyRentUtltsAndMaintAmt
Printing Publications Postage$210PrintingPublicationsPostageAmt
Other Expenses Total$5,909OtherExpensesTotalAmt
Total Expenses$132,341TotalExpensesAmt
Excess Or Deficit For Year$7,044ExcessOrDeficitForYearAmt
Net Assets Or Fund Balances BOY$22,712NetAssetsOrFundBalancesBOYAmt
Other Changes In Net Assets-$270OtherChangesInNetAssetsAmt
Net Assets Or Fund Balances EOY$29,486NetAssetsOrFundBalancesEOYAmt
Info In Schedule O Part IIYes (X)InfoInScheduleOPartIIInd

Cash Savings And Investments CashSavingsAndInvestmentsGrp

FieldValueIRS element (for citing)
BOY$26,603BOYAmt
EOY$54,000EOYAmt

Other Assets Total Detail OtherAssetsTotalDetail

FieldValueIRS element (for citing)
BOY$4,044BOYAmt
EOY$2,668EOYAmt

Form990 Total Assets Form990TotalAssetsGrp

FieldValueIRS element (for citing)
BOY$30,647BOYAmt
EOY$56,668EOYAmt

Sum Of Total Liabilities SumOfTotalLiabilitiesGrp

FieldValueIRS element (for citing)
BOY$7,935BOYAmt
EOY$27,182EOYAmt

Net Assets Or Fund Balances NetAssetsOrFundBalancesGrp

FieldValueIRS element (for citing)
BOY$22,712BOYAmt
EOY$29,486EOYAmt
FieldValueIRS element (for citing)
Primary Exempt PurposeTo provide education, training, and coaching necessary to compete in local,national, and international swimming events. The organization also promotes physical and mental fitness through swimming.PrimaryExemptPurposeTxt

Program Srvc Accomplishment ProgramSrvcAccomplishmentGrp

FieldValueIRS element (for citing)
Description Program Srvc Accom- Promote professionally coached masters swim workouts for approximately 120 competitive and fitness swimmers. There are 21 scheduled coached workouts weekly.- Participate in National Swim & athletic competitions throughout the year. Approximately 94% participated in the Hour Swim competition in January, awarding TAM 3rd highest total participation and the highest percent of member participation award of national masters organizations.- President Rich Burns was inducted with high honors International Swimming Hall of Fame ( 2026) and has served as a volunteer promoting USMS masters swimming, service and community health since 1980.DescriptionProgramSrvcAccomTxt
Program Service Expenses$122,718ProgramServiceExpensesAmt
FieldValueIRS element (for citing)
Total Program Service Expenses$122,718TotalProgramServiceExpensesAmt

Officer Director Trustee Empl OfficerDirectorTrusteeEmplGrp (7 entries)

TitleTitleTxtAverage Hrs Per Wk Devoted To PosAverageHrsPerWkDevotedToPosRtCompensationCompensationAmt
Rich Burns
President1.00$0
Jon Haverman
Vice President0.50$0
Brianna Castaldo
Treasurer4.00$0
MaryAnn Stich
Secretary1.00$0
Glenda Carroll
Member at Large0.50$0
Jim Stambolis
Member at Large0.50$0
Marie McSweeney
Head Coach29.50$62,840
FieldValueIRS element (for citing)
Activities Not Previously RptfalseActivitiesNotPreviouslyRptInd
Chg Made To Orgnzng Doc Not RptfalseChgMadeToOrgnzngDocNotRptInd
Organization Had UBIfalseOrganizationHadUBIInd
Subject To Proxy TaxfalseSubjectToProxyTaxInd
Organization Dissolved EtcfalseOrganizationDissolvedEtcInd
Form1120 Pol FiledfalseForm1120PolFiledInd
Made Loans To From OfficersfalseMadeLoansToFromOfficersInd
Tax Imposed Under IRC4911$0TaxImposedUnderIRC4911Amt
Tax Imposed Under IRC4912$0TaxImposedUnderIRC4912Amt
Tax Imposed Under IRC4955$0TaxImposedUnderIRC4955Amt
Engaged In Excess Benefit TransfalseEngagedInExcessBenefitTransInd
Tax Imposed On Organization Mgr$0TaxImposedOnOrganizationMgrAmt
Tax Reimbursed By Organization$0TaxReimbursedByOrganizationAmt
Prohibited Tax Shelter TransfalseProhibitedTaxShelterTransInd
States Where Copy Of Return Is FldCAStatesWhereCopyOfReturnIsFldCd

Books In Care Of Detail BooksInCareOfDetail

FieldValueIRS element (for citing)
PersonBrianna CastaldoPersonNm

US Address USAddress

FieldValueIRS element (for citing)
Address Line1PO Box 150516AddressLine1Txt
CitySan RafaelCityNm
State AbbreviationCAStateAbbreviationCd
ZIP94915ZIPCd
FieldValueIRS element (for citing)
Phone4159991073PhoneNum
FieldValueIRS element (for citing)
Foreign Financial AccountfalseForeignFinancialAccountInd
Foreign OfficefalseForeignOfficeInd
Donor Advised FndsfalseDonorAdvisedFndsInd
Operate HospitalfalseOperateHospitalInd
Tanning Services ProvidedfalseTanningServicesProvidedInd
Related Organization Ctrl EntfalseRelatedOrganizationCtrlEntInd
Transaction With Control EntfalseTransactionWithControlEntInd
Political Campaign ActyfalsePoliticalCampaignActyInd
Lobbying ActivitiesfalseLobbyingActivitiesInd
School OperatingfalseSchoolOperatingInd
Trnsfr Exmpt Non Chrtbl Rltd OrgfalseTrnsfrExmptNonChrtblRltdOrgInd
Part VI Of Comp Of Hghst Pd EmplNONEPartVIOfCompOfHghstPdEmplTxt
Part VI Hghst Pd Cntrct Prof SrvcNONEPartVIHghstPdCntrctProfSrvcTxt
Filed Schedule AYes (true)FiledScheduleAInd

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$60,622CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$83,045CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$119,655CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$131,922CurrentTaxYearMinus1YearAmt
Current Tax Year$139,380CurrentTaxYearAmt
Total$534,624TotalAmt

Gross Receipts Admissions GrossReceiptsAdmissionsGrp

FieldValueIRS element (for citing)
Total$0TotalAmt

Gross Receipts Non Unrlt Bus GrossReceiptsNonUnrltBusGrp

FieldValueIRS element (for citing)
Total$0TotalAmt

Tax Rev Levied Orgnztnl Bnft509 TaxRevLeviedOrgnztnlBnft509Grp

FieldValueIRS element (for citing)
Total$0TotalAmt

Govt Furn Srvc Fclts Vl509 GovtFurnSrvcFcltsVl509Grp

FieldValueIRS element (for citing)
Total$0TotalAmt

Total509 Total509Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$60,622CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$83,045CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$119,655CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$131,922CurrentTaxYearMinus1YearAmt
Current Tax Year$139,380CurrentTaxYearAmt
Total$534,624TotalAmt

Amounts Rcvd Dsqlfy Person AmountsRcvdDsqlfyPersonGrp

FieldValueIRS element (for citing)
Total$0TotalAmt

Substantial Contributors Amt SubstantialContributorsAmtGrp

FieldValueIRS element (for citing)
Total$0TotalAmt
FieldValueIRS element (for citing)
Public Support Total509$534,624PublicSupportTotal509Amt

Gross Investment Income509 GrossInvestmentIncome509Grp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$2CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$3CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$5CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$4CurrentTaxYearMinus1YearAmt
Current Tax Year$4CurrentTaxYearAmt
Total$18TotalAmt

Post1975 UBTI Post1975UBTIGrp

FieldValueIRS element (for citing)
Total$0TotalAmt

Investment Income And UBTI InvestmentIncomeAndUBTIGrp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$2CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$3CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$5CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$4CurrentTaxYearMinus1YearAmt
Current Tax Year$4CurrentTaxYearAmt
Total$18TotalAmt

Net Income From Other UBI NetIncomeFromOtherUBIGrp

FieldValueIRS element (for citing)
Total$0TotalAmt

Other Income509 OtherIncome509Grp

FieldValueIRS element (for citing)
Total$0TotalAmt

Total Support Calendar Year TotalSupportCalendarYearGrp

FieldValueIRS element (for citing)
Current Tax Year Minus4 Years$60,624CurrentTaxYearMinus4YearsAmt
Current Tax Year Minus3 Years$83,048CurrentTaxYearMinus3YearsAmt
Current Tax Year Minus2 Years$119,660CurrentTaxYearMinus2YearsAmt
Current Tax Year Minus1 Year$131,926CurrentTaxYearMinus1YearAmt
Current Tax Year$139,384CurrentTaxYearAmt
Total$534,642TotalAmt
FieldValueIRS element (for citing)
Public Support CY5091.00000PublicSupportCY509Pct
Investment Income CY0.00000InvestmentIncomeCYPct
Thirty Thr Pct Suprt Tests CY509Yes (X)ThirtyThrPctSuprtTestsCY509Ind

Schedule O IRS990ScheduleO

Supplemental Information Detail SupplementalInformationDetail (16 entries)

Form And Line ReferenceFormAndLineReferenceDescExplanationExplanationTxt
Other Expenses.1002Office Expenses $905
Other Expenses.1003Information Technology $585
Other Expenses.1012Insurance $786
Other Expenses.1Charitable Contributions $1638
Other Expenses.2Communications $977
Other Expenses.3Education $575
Other Expenses.4Meets $368
Other Expenses.6Member $75
Other Assets.1005Accounts Receivable - Beginning $1559 Accounts Receivable - Ending $0
Other Assets.1Payroll Refunds - Beginning $20 Payroll Refunds - Ending $20
Other Assets.2Undeposited Funds - Beginning $2465 Undeposited Funds - Ending $380
Other Assets.3QuickBooks Tax Holding Account - Beginning $0 QuickBooks Tax Holding Account - Ending $2268
Total Liabilities.1001Accounts Payable and Accrued Expenses - Beginning $7518 Accounts Payable and Accrued Expenses - Ending $24491
Total Liabilities.1Other Payable - Beginning $239 Other Payable - Ending $445
Total Liabilities.2Payroll Liabilities - Beginning $-22 Payroll Liabilities - Ending $2246
Total Liabilities.3Credit Cards liability - Beginning $200 Credit Cards liability - Ending $0

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