{
  "slug": "gap-insurance-breakeven",
  "title": "GAP Insurance Breakeven Calculator",
  "heading": "GAP Insurance Breakeven Calculator",
  "category": "financial",
  "url": "https://www.revenuelab.fyi/toolbox/gap-insurance-breakeven",
  "summary": "Find out if GAP coverage is worth it given your loan balance and car's depreciation.",
  "description": "GAP (guaranteed asset protection) insurance pays the difference between your car loan balance and your vehicle's actual cash value if it's totaled or stolen before you finish paying it off. It only matters during the window where you owe more than the car is worth — new cars typically depreciate 20% in year one and roughly 15% per year after, while loan balances pay down more slowly, especially with longer terms or small down payments. This calculator projects your loan balance and vehicle value forward month by month using your amortization terms and a depreciation curve, then identifies exactly when you cross into positive equity, so you can see whether GAP coverage's cost is justified for your specific loan-to-value situation rather than buying it reflexively at the dealership.",
  "formula": "Loan balance(t) via amortization; vehicle value(t) = price × (1 − depreciation year1)^(applicable years); gap exists while loan balance(t) > vehicle value(t).",
  "dateModified": "2026-09-30",
  "run_url": "https://www.revenuelab.fyi/api/public/calc?tool=gap-insurance-breakeven",
  "inputs": [
    {
      "id": "vehiclePrice",
      "label": "Vehicle purchase price",
      "kind": "number",
      "hint": null,
      "default": 38000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "downPayment",
      "label": "Down payment",
      "kind": "number",
      "hint": null,
      "default": 2000,
      "unit": "$",
      "min": 0,
      "max": null
    },
    {
      "id": "loanTermMonths",
      "label": "Loan term",
      "kind": "number",
      "hint": null,
      "default": 72,
      "unit": "months",
      "min": 12,
      "max": 96
    },
    {
      "id": "apr",
      "label": "APR",
      "kind": "number",
      "hint": null,
      "default": 7,
      "unit": "%",
      "min": 0,
      "max": 25
    },
    {
      "id": "annualDepreciation",
      "label": "Annual depreciation rate",
      "kind": "number",
      "hint": null,
      "default": 18,
      "unit": "%",
      "min": 5,
      "max": 35
    },
    {
      "id": "gapCost",
      "label": "GAP insurance cost",
      "kind": "number",
      "hint": null,
      "default": 700,
      "unit": "$",
      "min": 0,
      "max": null
    }
  ],
  "outputs": [
    {
      "id": "maxGapAmount",
      "label": "Maximum negative equity exposure",
      "format": "currency",
      "hint": null,
      "primary": true
    },
    {
      "id": "crossoverMonth",
      "label": "Month you reach positive equity",
      "format": "number",
      "hint": null,
      "primary": false
    },
    {
      "id": "monthlyPayment",
      "label": "Monthly loan payment",
      "format": "currency",
      "hint": null,
      "primary": false
    },
    {
      "id": "worthIt",
      "label": "GAP cost worth it vs exposure (1=yes, 0=no)",
      "format": "number",
      "hint": null,
      "primary": false
    }
  ],
  "worked_example": {
    "inputs": [
      "Vehicle purchase price: 38000 $",
      "Down payment: 2000 $",
      "Loan term: 72 months",
      "APR: 7 %",
      "Annual depreciation rate: 18 %",
      "GAP insurance cost: 700 $"
    ],
    "outputs": [
      "Maximum negative equity exposure: $163",
      "Month you reach positive equity: 1",
      "Monthly loan payment: $614",
      "GAP cost worth it vs exposure (1=yes, 0=no): 0"
    ]
  },
  "how_to": {
    "title": "How to use this",
    "steps": [
      "Enter vehicle purchase price ($).",
      "Enter down payment ($).",
      "Enter loan term (months).",
      "Enter apr (%).",
      "Enter annual depreciation rate (%).",
      "Enter gap insurance cost ($).",
      "Read your maximum negative equity exposure 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": {
        "vehiclePrice": 23000,
        "downPayment": 1000,
        "loanTermMonths": 48,
        "apr": 7,
        "annualDepreciation": 11,
        "gapCost": 400
      }
    },
    {
      "name": "Typical",
      "description": "Defaults — the most common real-world setup.",
      "values": {
        "vehiclePrice": 38000,
        "downPayment": 2000,
        "loanTermMonths": 72,
        "apr": 7,
        "annualDepreciation": 18,
        "gapCost": 700
      }
    },
    {
      "name": "Ambitious",
      "description": "Higher-end numbers — what if things really pop?",
      "values": {
        "vehiclePrice": 61000,
        "downPayment": 3000,
        "loanTermMonths": 96,
        "apr": 7,
        "annualDepreciation": 29,
        "gapCost": 1100
      }
    }
  ],
  "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": "When is negative equity the biggest?",
      "a": "Almost always in the first 12-18 months, right after the steepest first-year depreciation hits while your loan balance has barely moved due to how amortization front-loads interest. A car bought with little or no down payment and a 72-84 month term can easily be $5,000-$8,000 underwater in month six."
    },
    {
      "q": "Does a bigger down payment eliminate the need for GAP insurance?",
      "a": "Often yes. Putting down 20% or more usually keeps your loan balance below the vehicle's depreciated value from day one, closing the gap entirely. This calculator will show a near-zero or zero maximum gap amount in that scenario, meaning GAP coverage would just be an unnecessary cost."
    },
    {
      "q": "Is dealer-sold GAP insurance a good deal?",
      "a": "Usually not. Dealers commonly charge $700-$1,000 for GAP coverage that many auto insurers or credit unions sell for $150-$300 as a policy add-on, or sometimes include free with certain loan products. Always ask your existing auto insurer for a GAP quote before accepting the dealer's price."
    },
    {
      "q": "Does regular car insurance already cover the gap?",
      "a": "No. Standard comprehensive and collision coverage only pays the vehicle's actual cash value at the time of loss, not your remaining loan balance. If the car is worth less than you owe, you're on the hook for the difference out of pocket unless you have GAP coverage specifically."
    }
  ],
  "related": [
    "https://www.revenuelab.fyi/toolbox/auto-liability-limit-adequacy",
    "https://www.revenuelab.fyi/toolbox/hdhp-vs-ppo-total-cost"
  ],
  "license": "CC-BY-4.0",
  "citation": "RevenueLab — GAP Insurance Breakeven Calculator (https://www.revenuelab.fyi/toolbox/gap-insurance-breakeven)"
}