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| IRS990/Desc | 0 | MATHCOUNTS Competition Series and Support:MATHCOUNTS cultivates talent in the nation's brightest minds through the MATHCOUNTS Competition Series. Students are brought together from 56 "states" (50 states, Washington D.C., DoD overseas schools, State Department overseas schools, Guam, Puerto Rico and Virgin Islands) at hundreds of local in-person contests - the only program of its kind to do so. Winners advance through 4 levels of competition - school, chapter, state, and national - until the overall national individual and team champions are determined. |
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| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 99242 |
| IRS990/NoDonorRestrictionNetAssetsGrp/BOYAmt | 0 | 4807720 |
| IRS990/NoDonorRestrictionNetAssetsGrp/EOYAmt | 0 | 5048198 |
| IRS990/NoncashContributionsAmt | 0 | 38750 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 4191 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 1574 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 42274 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 48039 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 6854 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 32934 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 295348 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 335136 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsFASB117Ind | 0 | X |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 13657 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 4296 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 142336 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 160289 |
| IRS990/OtherExpensesGrp/Desc | 0 | National Competition |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 512 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 599352 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 599864 |
| IRS990/OtherSalariesAndWagesGrp/FundraisingAmt | 0 | 83790 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 29467 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 994377 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 1107634 |
| IRS990/OwnWebsiteInd | 0 | X |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/FundraisingAmt | 0 | 9845 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 3282 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 96260 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 109387 |
| IRS990/PensionPlanContributionsGrp/FundraisingAmt | 0 | 4189 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 1141 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 49719 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 55049 |
| IRS990/PledgesAndGrantsReceivableGrp/BOYAmt | 0 | 510334 |
| IRS990/PledgesAndGrantsReceivableGrp/EOYAmt | 0 | 113455 |
| IRS990/PoliciesReferenceChaptersInd | 0 | 1 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 55984 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 47424 |
| IRS990/PrincipalOfficerNm | 0 | Kristen Chandler |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | Competition Registration |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | Coaching Materials/Promo items |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 1229084 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 242832 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 1229084 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 242832 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | The National Math Club:MATHCOUNTS inspires curiosity and builds confidence in students of all math ability levels through The National Math Club. The program creates a space where math learning is fun, social and supportive, so that every student becomes a lifelong math learner. Any individual can sign up to be a club leader and receive free materials to conduct fun math games with their students. Clubs with active participation receive extra recognition and rewards. |
| IRS990/ProgSrvcAccomActy2Grp/ExpenseAmt | 0 | 268643 |
| IRS990/ProgSrvcAccomActy2Grp/GrantAmt | 0 | 5358 |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | School Recruitment, Public Relations and Newsletter:MATHCOUNTS conducts an extensive campaign to share our wide array of educational resources to teachers, school administrators, students, and parents throughout the country. This campaign includes an annual, online newsletter and postcards that are distributed to every middle school in the United States. |
| IRS990/ProgSrvcAccomActy3Grp/ExpenseAmt | 0 | 29771 |
| IRS990/ProgSrvcAccomActy3Grp/GrantAmt | 0 | 20 |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 1964868 |
| IRS990/PYExcessBenefitTransInd | 0 | 0 |