{
  "slug": "property-tax-appeal-savings",
  "title": "Property Tax Appeal Savings Calculator",
  "heading": "Property Tax Appeal Calculator",
  "category": "financial",
  "url": "https://www.revenuelab.fyi/toolbox/property-tax-appeal-savings",
  "summary": "Multi-year savings if your assessment is reduced, net of appeal costs.",
  "description": "An assessment reduction compounds: it lowers the bill every year until the next revaluation. Compare the savings stream against the appraisal, filing, and consultant fees required to win.",
  "formula": "Annual saving = (assessed − proposed) × assessment ratio × mill rate; net = saving × years − costs.",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=property-tax-appeal-savings",
  "inputs": [
    {
      "id": "assessed",
      "label": "Current assessed value",
      "kind": "number",
      "hint": null,
      "default": 480000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "proposed",
      "label": "Value you're arguing for",
      "kind": "number",
      "hint": null,
      "default": 415000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "ratio",
      "label": "Assessment ratio",
      "kind": "number",
      "hint": null,
      "default": 100,
      "unit": "%",
      "min": 1,
      "max": 100
    },
    {
      "id": "millRate",
      "label": "Tax rate",
      "kind": "number",
      "hint": null,
      "default": 1.35,
      "unit": "%",
      "min": 0,
      "max": 10
    },
    {
      "id": "years",
      "label": "Years until revaluation",
      "kind": "number",
      "hint": null,
      "default": 3,
      "unit": null,
      "min": 1,
      "max": null
    },
    {
      "id": "cost",
      "label": "Appraisal + filing costs",
      "kind": "number",
      "hint": null,
      "default": 550,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "contingency",
      "label": "Consultant share of year-1 savings",
      "kind": "number",
      "hint": null,
      "default": 0,
      "unit": "%",
      "min": 0,
      "max": 60
    }
  ],
  "outputs": [
    {
      "id": "annual",
      "label": "Annual tax savings",
      "format": "currency",
      "hint": null,
      "primary": true
    },
    {
      "id": "net",
      "label": "Net savings after costs",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "total",
      "label": "Gross savings over the period",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "fee",
      "label": "Consultant contingency fee",
      "format": "currency",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Current assessed value: 480000 $",
      "Value you're arguing for: 415000 $",
      "Assessment ratio: 100 %",
      "Tax rate: 1.35 %",
      "Years until revaluation: 3",
      "Appraisal + filing costs: 550 $",
      "Consultant share of year-1 savings: 0 %"
    ],
    "outputs": [
      "Annual tax savings: $878",
      "Net savings after costs: $2,083",
      "Gross savings over the period: $2,633",
      "Consultant contingency fee: $0"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter current assessed value ($).",
      "Enter value you're arguing for ($).",
      "Enter assessment ratio (%).",
      "Enter tax rate (%).",
      "Enter years until revaluation.",
      "Enter appraisal + filing costs ($).",
      "Enter consultant share of year-1 savings (%).",
      "Read your annual tax savings on the right — it updates as you type.",
      "Hit Share to keep the scenario or send it to someone."
    ]
  },
  "scenarios": [
    {
      "name": "Conservative",
      "description": "Lower-end numbers — what if things land soft?",
      "values": {
        "assessed": 290000,
        "proposed": 250000,
        "ratio": 60,
        "millRate": 0.81,
        "years": 2,
        "cost": 325,
        "contingency": 0
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "assessed": 480000,
        "proposed": 415000,
        "ratio": 100,
        "millRate": 1.35,
        "years": 3,
        "cost": 550,
        "contingency": 0
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "assessed": 770000,
        "proposed": 665000,
        "ratio": 100,
        "millRate": 2.16,
        "years": 5,
        "cost": 875,
        "contingency": 0
      }
    }
  ],
  "limitations": [
    "Results are estimates before tax, fees, and inflation unless an input explicitly covers them.",
    "Rates are treated as fixed for the whole period — variable-rate products will drift from this projection.",
    "This is educational maths, not financial advice. Check anything contractual with the lender or your accountant."
  ],
  "faq": [
    {
      "q": "What evidence wins an appeal?",
      "a": "Recent comparable sales below your assessment, documented condition problems, and errors in recorded square footage or bedroom count are the strongest arguments."
    },
    {
      "q": "Can my assessment go up if I appeal?",
      "a": "In some jurisdictions the board can raise the value if the evidence supports it. Check local rules before filing when your assessment already looks low."
    }
  ],
  "related": [],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — Property Tax Appeal Savings Calculator (https://www.revenuelab.fyi/toolbox/property-tax-appeal-savings)"
}