Liabilities / Assets
77th percentile
Higher debt load relative to assets than 77% of similar nonprofits.
Littlest Tumor Foundation Inc
EIN 27-0917237 • 501(c)3 • Appleton, WI
Profile
Dedicated to finding a preventative therapy and treatment for tumor growth in children and providing wellness scholarships to families dealing with neurofibromatosis. Adovacy of research funding.
Siviq Scores
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
0.07x
Liabilities / Revenue
80th percentile
Higher debt load relative to revenue than 80% of similar nonprofits.
Net Margin
75th percentile
Higher net margin than 75% of similar nonprofits.
Top Officer Pay
93rd percentile
Higher top officer pay than 93% of similar nonprofits.
Top officer pay equals 25.3% of source-year revenue.
Asset Growth
82nd percentile
Faster asset growth than 82% of similar nonprofits.
Revenue Growth
52nd percentile
Faster revenue growth than 52% of similar nonprofits.
Balance Sheet
Assets
Up$164,473
Up $43,208 (+36%) from 2024
Liabilities
Up$12,233
Up $4,365 (+55%) from 2024
Net Assets
Up$152,240
Up $38,843 (+34%) from 2024
Revenue
Down$187,192
Down $1,065 (-0.6%) from 2024
Expenses
Down$148,349
Down $23,579 (-14%) from 2024
Net Income
Up$38,843
Up $22,514 (+138%) from 2024
Trend Graphs
Filings
Most recent year
2025 • Form 990EZDetailed filing. Detailed filing data is available for this year.
- Assets
- $164,473
- Liabilities
- $12,233
- Net assets
- $152,240
- Revenue
- $187,192
- Expenses
- $148,349
- Net income
- $38,843
Latest Filing Detail
Jump To
Filing Snapshot
- Filing Period
- Oct 1, 2024 to Sep 30, 2025
- Signed
- Jan 29, 2026
- Return Version
- 2024v5.5
- Gross Receipts
- $187,192
Mission and Program Overview
Mission
Increase understanding of neurofibromatosis (nf), empower affected families, advance research of preventiative therapies.
Increase understanding of neurofibromatosis (nf), empower affected families, advance research of preventative therapies.
Program Services
| Description | Grants | Expenses |
|---|---|---|
| LED ANNUAL FAMILY WELLNESS RETREATS FOR THE ENTIRE FAMILY FOR FIVE DAYS IN WISCONSIN THAT FOCUSED ON EDUCATION, HEALTHY LIFESTYLE AND EMPOWERING THE FAMILY UNIT. HELD A FIVE DAY YOUNG ADULT LEADERSHIP PROGRAM.HELD A FOUR DAY NF YOUNG ADULT MENTORSHIP PROGRAM.HAD VIRTUAL AND AN IN-PERSON MEETINGS WITH THE NF COLLECTIVE GROUP.HELD SUPPORT GROUPS FOR PARENTS AND CAREGIVERS WITH NF. | $0 | $115,107 |
Compensation and Service Providers
Employees
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| TRACY WIRTANEN | Treasurer & Exec Director | FT | $47,400 | - | $47,400 |
| STEVE MYERS | President | - | $0 | - | - |
| BRENT DEBENEDET | Secretary | - | $0 | - | - |
Filing and Contact Details
Filer
- Filer Name
- Littlest Tumor Foundation Inc
- EIN
- 27-0917237
- Phone
- 9204756599
- Address
- PO BOX 7051, APPLETON, WI 54912
Signing Officer
- Name
- Tracy Wirtanen
- Title
- Treasurer
- Phone
- 9204756599
- Signed
- 2026-01-29
- Discuss with paid preparer
- Yes
Preparer
- Firm
- Cliftonlarsonallen Llp
- Address
- 100 W LAWRENCE STREET SUITE 500, APPLETON, WI 54911
- Preparer
- Michael Vandenhogen
- Phone
- 9207318111
Supplemental Narrative
Additional Explanations
Form 990-ez, Part I, Line 16 - Other Expenses
“Description: volunteer support expense. Amount: 154. Description: training and education. Amount: 1,727. Description: depreciation expense. Amount: 265. Description: office expense. Amount: 5,518. Description: research & advocacy expense. Amount: 2,622. Description: miscellaneous. Amount: 2,442. Description: program travel expense. Amount: 34,673. Description: dues & fees. Amount: 1,490. Description: insurance. Amount: 2,373. Description: event food and supplies. Amount: 15,801. Total to form 990-ez, line 16: 67,065.”
Form 990-ez, Part II, Line 24 - Other Assets
“Description: due from tracy. Beg. Of year amount: 841. End of year amount: 0. Description: other depreciable assets. Beg. Of year amount: 235. End of year amount: 1,769.”
Form 990-ez, Part II, Line 26 - Other Liabilities
“Description: credit card payable. Beg. Of year amount: 7,868. End of year amount: 12,233.”
Raw XML Appendix155 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.
| Path | # | Value |
|---|---|---|
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| IRS990EZ/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | TRACY WIRTANEN |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 9204756599 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO BOX 7051 |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | APPLETON |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | WI |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 54912 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 120189 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 162704 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | 0 |
| IRS990EZ/ContributionsGiftsGrantsEtcAmt | 0 | 187192 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | 0 |
| IRS990EZ/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | 38843 |
| IRS990EZ/FeesAndOtherPymtToIndCntrctAmt | 0 | 27389 |
| IRS990EZ/FiledScheduleAInd | 0 | 1 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | 0 |
| IRS990EZ/ForeignOfficeInd | 0 | 0 |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 121265 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 164473 |
| IRS990EZ/GrossReceiptsAmt | 0 | 187192 |
| IRS990EZ/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartVInd | 0 | X |
| IRS990EZ/LobbyingActivitiesInd | 0 | 0 |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | 0 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 113397 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 152240 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 113397 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 152240 |
| IRS990EZ/OccupancyRentUtltsAndMaintAmt | 0 | 2454 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 0.25 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 0.25 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 40.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 47400 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | STEVE MYERS |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | BRENT DEBENEDET |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | TRACY WIRTANEN |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | PRESIDENT |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | SECRETARY |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | TREASURER & EXEC DIRECTOR |
| IRS990EZ/OperateHospitalInd | 0 | 0 |
| IRS990EZ/Organization501c3Ind | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990EZ/OrganizationHadUBIInd | 0 | 0 |
| IRS990EZ/OtherAssetsTotalDetail/BOYAmt | 0 | 1076 |
| IRS990EZ/OtherAssetsTotalDetail/EOYAmt | 0 | 1769 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 67065 |
| IRS990EZ/PartVIHghstPdCntrctProfSrvcTxt | 0 | NONE |
| IRS990EZ/PartVIOfCompOfHghstPdEmplTxt | 0 | NONE |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | INCREASE UNDERSTANDING OF NEUROFIBROMATOSIS (NF), EMPOWER AFFECTED FAMILIES, ADVANCE RESEARCH OF PREVENTATIVE THERAPIES. |
| IRS990EZ/PrintingPublicationsPostageAmt | 0 | 16 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | LED ANNUAL FAMILY WELLNESS RETREATS FOR THE ENTIRE FAMILY FOR FIVE DAYS IN WISCONSIN THAT FOCUSED ON EDUCATION, HEALTHY LIFESTYLE AND EMPOWERING THE FAMILY UNIT. HELD A FIVE DAY YOUNG ADULT LEADERSHIP PROGRAM.HELD A FOUR DAY NF YOUNG ADULT MENTORSHIP PROGRAM.HAD VIRTUAL AND AN IN-PERSON MEETINGS WITH THE NF COLLECTIVE GROUP.HELD SUPPORT GROUPS FOR PARENTS AND CAREGIVERS WITH NF. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 115107 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990EZ/SalariesOtherCompEmplBnftAmt | 0 | 51425 |
| IRS990EZ/SchoolOperatingInd | 0 | 0 |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 0 | WI |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 1 | CA |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 2 | NY |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 3 | IL |
| IRS990EZ/StatesWhereCopyOfReturnIsFldCd | 4 | MN |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 7868 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 12233 |
| IRS990EZ/TanningServicesProvidedInd | 0 | 0 |
| IRS990EZ/TaxImposedOnOrganizationMgrAmt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4911Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4912Amt | 0 | 0 |
| IRS990EZ/TaxImposedUnderIRC4955Amt | 0 | 0 |
| IRS990EZ/TaxReimbursedByOrganizationAmt | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 148349 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 115107 |
| IRS990EZ/TotalRevenueAmt | 0 | 187192 |
| IRS990EZ/TrnsfrExmptNonChrtblRltdOrgInd | 0 | 0 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990EZ/WebsiteAddressTxt | 0 | WWW.LITTLESTTUMOR.ORG |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 187192 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 188257 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 126661 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 78711 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 108730 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 689551 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportCY170Pct | 0 | 0.40590 |
| IRS990ScheduleA/PublicSupportPY170Pct | 0 | 0.43270 |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 279882 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 409669 |
| IRS990ScheduleA/ThirtyThrPctSuprtTestsCY170Ind | 0 | X |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 187192 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 188257 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 126661 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 78711 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus4YearsAmt | 0 | 108730 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 689551 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 689551 |
| IRS990ScheduleB/ContributorInformationGrp/ContributorBusinessName/BusinessNameLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorNum | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine1 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/AddressLine2 | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/City | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/State | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/ContributorUSAddress/ZIPCode | 0 | RESTRICTED |
| IRS990ScheduleB/ContributorInformationGrp/TotalContributionsAmt | 0 | RESTRICTED |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | DESCRIPTION: VOLUNTEER SUPPORT EXPENSE. AMOUNT: 154. DESCRIPTION: TRAINING AND EDUCATION. AMOUNT: 1,727. DESCRIPTION: DEPRECIATION EXPENSE. AMOUNT: 265. DESCRIPTION: OFFICE EXPENSE. AMOUNT: 5,518. DESCRIPTION: RESEARCH & ADVOCACY EXPENSE. AMOUNT: 2,622. DESCRIPTION: MISCELLANEOUS. AMOUNT: 2,442. DESCRIPTION: PROGRAM TRAVEL EXPENSE. AMOUNT: 34,673. DESCRIPTION: DUES & FEES. AMOUNT: 1,490. DESCRIPTION: INSURANCE. AMOUNT: 2,373. DESCRIPTION: EVENT FOOD AND SUPPLIES. AMOUNT: 15,801. TOTAL TO FORM 990-EZ, LINE 16: 67,065. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 1 | DESCRIPTION: DUE FROM TRACY. BEG. OF YEAR AMOUNT: 841. END OF YEAR AMOUNT: 0. DESCRIPTION: OTHER DEPRECIABLE ASSETS. BEG. OF YEAR AMOUNT: 235. END OF YEAR AMOUNT: 1,769. |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 2 | DESCRIPTION: CREDIT CARD PAYABLE. BEG. OF YEAR AMOUNT: 7,868. END OF YEAR AMOUNT: 12,233. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | FORM 990-EZ, PART I, LINE 16 - OTHER EXPENSES |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | FORM 990-EZ, PART II, LINE 24 - OTHER ASSETS |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | FORM 990-EZ, PART II, LINE 26 - OTHER LIABILITIES |
| TransferPrsnlBnftContractsDecl/DeclarationDesc | 0 | THE ORGANIZATION DID NOT, DURING THE YEAR, RECEIVE ANY FUNDS, DIRECTLY,OR INDIRECTLY, TO PAY PREMIUMS ON A PERSONAL BENEFIT CONTRACT.THE ORGANIZATION, DID NOT, DURING THE YEAR, PAY ANY PREMIUMS, DIRECTLY,OR INDIRECTLY, ON A PERSONAL BENEFIT CONTRACT. |
| ReturnHeader/BuildTS | 0 | 2025-03-06 01:10:19Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | TRACY WIRTANEN |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | TREASURER |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 9204756599 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2026-01-29 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | LITTLEST TUMOR FOUNDATION INC |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | LITT |
| ReturnHeader/Filer/EIN | 0 | 270917237 |
| ReturnHeader/Filer/PhoneNum | 0 | 9204756599 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PO BOX 7051 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | APPLETON |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | WI |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 54912 |
| ReturnHeader/IRSResponsiblePrtyInfoCurrInd | 0 | 0 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 410746749 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | CLIFTONLARSONALLEN LLP |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 100 W LAWRENCE STREET SUITE 500 |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | APPLETON |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | WI |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 54911 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 9207318111 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2026-01-29 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | MICHAEL VANDENHOGEN |
| ReturnHeader/ReturnTs | 0 | 2026-02-02T18:23:34-06:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2024-10-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2025-09-30 |
| ReturnHeader/TaxYr | 0 | 2024 |
Document Assets
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