{
  "_meta": {
    "source": "County assessor / appraisal district certified rates (2025), collected 2026-08-30",
    "method": "annualTax = max(0, homeValue * assessmentRatio * equalizationFactor - exemption) * millageRate",
    "note": "Estimate only. Millage varies by taxing district within a county; exemptions and caps vary by owner. For an exact bill, use the county's own estimator (estimatorUrl) or assessor (assessorUrl).",
    "reviewed": "2026-08-30",
    "refresh": "Counties set new millage annually; re-collect from each assessorUrl/source and bump reviewed."
  },
  "counties": {
    "bexar-county": {
      "county": "Bexar County",
      "state": "TX",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 140000,
      "millageRate": 0.026267,
      "assessorName": "Bexar Appraisal District (BCAD), appraises property and administers exemptions; Bexar County Tax Assessor-Collector, Albert Uresti, calculates and collects the tax bill",
      "assessorUrl": "https://bcad.org/",
      "estimatorUrl": "https://bexar.countytaxrates.com/tax",
      "source": "https://www.bexar.org/4032/2025-Official-Tax-Rates-Exemptions (Bexar County Tax Assessor-Collector, primary .gov-hosted certified 2025 rate table, used for all rates and exemption amounts)",
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 9456,
      "modelCheck": {
        "modeled": 9456,
        "collected": 9456,
        "deviation": "0%"
      }
    },
    "broward-county": {
      "county": "Broward County",
      "state": "Florida",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 50000,
      "millageRate": 0.018804,
      "assessorName": "Broward County Property Appraiser (Marty Kiar)",
      "assessorUrl": "https://bcpa.net/",
      "estimatorUrl": "https://bcpa.net/taxcalc.asp",
      "source": "https://bcpa.net/taxcalc.asp",
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 8462,
      "modelCheck": {
        "modeled": 8462,
        "collected": 8462,
        "deviation": "0%"
      }
    },
    "clark-county": {
      "county": "Clark County",
      "state": "NV",
      "assessmentRatio": 0.35,
      "equalizationFactor": 1,
      "exemption": 0,
      "millageRate": 0.032783,
      "assessorName": "Briana Johnson, Clark County Assessor (valuation & exemptions); Clark County Treasurer (billing & collection, elected office, no single named individual confirmed as of this lookup)",
      "assessorUrl": "https://www.clarkcountynv.gov/government/assessor/",
      "estimatorUrl": "https://treasurer.co.clark.nv.us/TaxRate-District/",
      "source": {
        "name": "Clark County Assessor - Real Property (assessment ratio, taxable value method, worked example)",
        "url": "https://www.clarkcountynv.gov/government/assessor/real-property"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 5737,
      "modelCheck": {
        "modeled": 5737,
        "collected": 5737,
        "deviation": "0%"
      }
    },
    "cook-county": {
      "county": "Cook County",
      "state": "IL",
      "assessmentRatio": 0.1,
      "equalizationFactor": 3.0355,
      "exemption": 10000,
      "millageRate": 0.0665,
      "assessorName": "Cook County Assessor's Office - Fritz Kaegi (current officeholder as of Aug. 2026; he lost the March 17, 2026 Democratic primary to Pat Hynes and his term runs through the Nov. 2026 general election/transition, after which Hynes is favored to take office in December 2026 as the Democratic nominee in this heavily Democratic county)",
      "assessorUrl": "https://www.cookcountyassessoril.gov",
      "estimatorUrl": "No",
      "source": {
        "name": "Cook County Assessor's Office - main site",
        "url": "https://www.cookcountyassessoril.gov"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 9428,
      "modelCheck": {
        "modeled": 9428,
        "collected": 9428,
        "deviation": "0%"
      }
    },
    "dallas-county": {
      "county": "Dallas County",
      "state": "TX",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 140000,
      "millageRate": 0.022256,
      "assessorName": "Dallas Central Appraisal District (DCAD), appraises value & administers exemptions; Dallas County Tax Office, John R. Ames (Tax Assessor/Collector), bills & collects the tax",
      "assessorUrl": "https://www.dallascad.org/",
      "estimatorUrl": "https://www.dallascad.org/TaxRateCalculator.aspx",
      "source": {
        "name": "DCAD - I have a question about the homestead cap",
        "url": "https://support.dallascad.org/hc/en-us/articles/32252269114267-I-have-a-question-about-the-homestead-cap"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 8012,
      "modelCheck": {
        "modeled": 8012,
        "collected": 8012,
        "deviation": "0%"
      }
    },
    "harris-county": {
      "county": "Harris County",
      "state": "TX",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 140000,
      "millageRate": 0.022044,
      "assessorName": "Harris Central Appraisal District (HCAD), appraises value & administers exemptions; Harris County Tax Assessor-Collector (Annette Ramirez), bills & collects the tax",
      "assessorUrl": "https://hcad.org/",
      "estimatorUrl": "https://www.hctax.net/Property/PropertyTaxDatabase",
      "source": {
        "name": "HCAD - The 10% Homestead Cap",
        "url": "https://hcad.org/videos/the-10-homestead-cap"
      },
      "confidence": "medium",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 7936,
      "modelCheck": {
        "modeled": 7936,
        "collected": 7936,
        "deviation": "0%"
      }
    },
    "king-county": {
      "county": "King County",
      "state": "WA",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 0,
      "millageRate": 0.009194,
      "assessorName": "King County Assessor, John Wilson (elected official; as of publication he has announced he will not seek re-election when his term ends in late 2026)",
      "assessorUrl": "https://kingcounty.gov/en/dept/assessor",
      "estimatorUrl": "https://blue.kingcounty.com/Assessor/eRealProperty/default.aspx",
      "source": {
        "name": "King County Assessor - main page",
        "url": "https://kingcounty.gov/en/dept/assessor"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 4597,
      "modelCheck": {
        "modeled": 4597,
        "collected": 4597,
        "deviation": "0%"
      }
    },
    "los-angeles-county": {
      "county": "Los Angeles County",
      "state": "CA",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 7000,
      "millageRate": 0.011803,
      "assessorName": "Jeff Prang, Los Angeles County Assessor (assessment & exemptions); Oscar Valdez, Auditor-Controller (computes/certifies tax rates by Tax Rate Area); Elizabeth Ginsberg, Treasurer and Tax Collector (billing & collection)",
      "assessorUrl": "https://assessor.lacounty.gov",
      "estimatorUrl": "https://assessor.lacounty.gov/homeowners/supplemental-tax-estimator",
      "source": {
        "name": "Los Angeles County Assessor - Homeowners' Exemption ($7,000; states illustrative '~1% property tax rate' and '~$70 annual saving')",
        "url": "https://assessor.lacounty.gov/exemptions/homeowner-exemption"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 5819,
      "modelCheck": {
        "modeled": 5819,
        "collected": 5819,
        "deviation": "0%"
      }
    },
    "maricopa-county": {
      "county": "Maricopa County",
      "state": "AZ",
      "assessmentRatio": 0.1,
      "equalizationFactor": 1,
      "exemption": 0,
      "millageRate": 0.114672,
      "assessorName": "Eddie Cook, Maricopa County Assessor",
      "assessorUrl": "https://mcassessor.maricopa.gov",
      "estimatorUrl": "https://treasurer.maricopa.gov/PropertyTaxInformation/?Parcel={APN}",
      "source": {
        "name": "Maricopa County Assessor - Property Details (Parcel 163-27-083, live lookup used to verify LPV/FCV/Assessed-LPV mechanics)",
        "url": "https://mcassessor.maricopa.gov/mcs/?q=16327083&mod=pd"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 5733.6,
      "modelCheck": {
        "modeled": 5734,
        "collected": 5733.6,
        "deviation": "0%"
      }
    },
    "miami-dade-county": {
      "county": "Miami-Dade County",
      "state": "Florida",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 50000,
      "millageRate": 0.020281,
      "assessorName": "Miami-Dade County Property Appraiser (Tomas Regalado)",
      "assessorUrl": "https://www.miamidadepa.gov/",
      "estimatorUrl": "https://apps.miamidadepa.gov/PAOnlineTools/Taxes/TaxEstimator.aspx",
      "source": "https://apps.miamidadepa.gov/PAOnlineTools/Taxes/TaxEstimator.aspx",
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 9126.24,
      "modelCheck": {
        "modeled": 9126,
        "collected": 9126.24,
        "deviation": "0%"
      }
    },
    "orange-county": {
      "county": "Orange County",
      "state": "California",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 7000,
      "millageRate": 0.011,
      "assessorName": "Claude Parrish, Orange County Assessor",
      "assessorUrl": "https://www.ocassessor.gov/",
      "estimatorUrl": "https://taxbill.octreasurer.gov/external/estimate_taxes",
      "source": "https://www.ocassessor.gov/real-property-assessments/proposition-13",
      "confidence": "medium",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 5423,
      "modelCheck": {
        "modeled": 5423,
        "collected": 5423,
        "deviation": "0%"
      }
    },
    "riverside-county": {
      "county": "Riverside County",
      "state": "CA",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 7000,
      "millageRate": 0.011501,
      "assessorName": "Peter Aldana, Riverside County Assessor-County Clerk-Recorder (assessment & exemptions); Matthew Jennings, Riverside County Treasurer-Tax Collector (billing & collection)",
      "assessorUrl": "https://www.rivcoacr.org/",
      "estimatorUrl": "https://supplementaltaxestimator.rivcoacr.org/",
      "source": {
        "name": "Riverside County Assessor-County Clerk-Recorder - Special Assessments (confirms '1 percent property-tax rate allowed by Proposition 13' plus Mello-Roos as an addition)",
        "url": "https://www.rivcoacr.org/SpecialAssessments"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 5670,
      "modelCheck": {
        "modeled": 5670,
        "collected": 5670,
        "deviation": "0%"
      }
    },
    "san-diego-county": {
      "county": "San Diego County",
      "state": "CA",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 7000,
      "millageRate": 0.011751,
      "assessorName": "Jordan Z. Marks, San Diego County Assessor/Recorder/County Clerk (assessment & exemptions); Dan McAllister, San Diego County Treasurer-Tax Collector (billing & collection)",
      "assessorUrl": "https://www.sdarcc.gov/",
      "estimatorUrl": "https://www.sdttc.com/content/ttc/en/property-tax-allocation-calculator.html",
      "source": {
        "name": "San Diego County Assessor/Recorder/County Clerk - Homeowners' Exemption",
        "url": "https://www.sdarcc.gov/content/arcc/home/divisions/assessor/property-tax-savings/homeowner-exemption.html"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 5793,
      "modelCheck": {
        "modeled": 5793,
        "collected": 5793,
        "deviation": "0%"
      }
    },
    "santa-clara-county": {
      "county": "Santa Clara County",
      "state": "CA",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 7000,
      "millageRate": 0.011901,
      "assessorName": "Office of the Assessor, County of Santa Clara",
      "assessorUrl": "https://asr.santaclaracounty.gov",
      "estimatorUrl": "https://asr.santaclaracounty.gov/online-services/supplemental-calculator",
      "source": {
        "name": "Santa Clara County Assessor - Understanding Proposition 13 (base year value, 2%/year cap, 1% levy + voter-approved taxes)",
        "url": "https://asr.santaclaracounty.gov/faq/understanding-proposition-13"
      },
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 5867,
      "modelCheck": {
        "modeled": 5867,
        "collected": 5867,
        "deviation": "0%"
      }
    },
    "tarrant-county": {
      "county": "Tarrant County",
      "state": "Texas",
      "assessmentRatio": 1,
      "equalizationFactor": 1,
      "exemption": 140000,
      "millageRate": 0.023181,
      "assessorName": "Tarrant Appraisal District (TAD), appraises property and administers exemptions (this is the county's 'assessor' equivalent, called an appraisal district under Texas's two-body system). Tax bills are issued and collected separately by the Tarrant County Tax Assessor-Collector.",
      "assessorUrl": "https://www.tad.org",
      "estimatorUrl": "https://www.tax.tarrantcountytx.gov/TaxEstimator",
      "source": "https://www.tad.org/homestead-exemption/",
      "confidence": "high",
      "reviewed": "2026-08-30",
      "testValue": 500000,
      "testTax": 8345,
      "modelCheck": {
        "modeled": 8345,
        "collected": 8345,
        "deviation": "0%"
      }
    }
  }
}