{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://askcalculators.com/calculator/fixed-declining-balance-depreciation-calculator/schema.json",
  "title": "Fixed Declining Balance Depreciation Calculator inputs",
  "description": "Calculate a fixed declining-balance depreciation rate and annual schedule that approaches salvage value.",
  "type": "object",
  "properties": {
    "cost": {
      "title": "Asset cost",
      "type": "number",
      "default": 50000,
      "minimum": 0.01,
      "x-step": 100,
      "multipleOf": 100,
      "x-unit": "currency"
    },
    "salvageValue": {
      "title": "Salvage value",
      "type": "number",
      "default": 5000,
      "minimum": 0,
      "x-step": 100,
      "multipleOf": 100,
      "x-unit": "currency"
    },
    "usefulLife": {
      "title": "Useful life in years",
      "type": "number",
      "default": 8,
      "minimum": 1,
      "maximum": 100,
      "x-step": 1,
      "multipleOf": 1
    },
    "firstYearMonths": {
      "title": "Months in first year",
      "type": "number",
      "default": 12,
      "minimum": 1,
      "maximum": 12,
      "x-step": 1,
      "multipleOf": 1
    }
  },
  "required": [
    "cost",
    "salvageValue",
    "usefulLife",
    "firstYearMonths"
  ],
  "additionalProperties": false,
  "x-askcalculators": {
    "version": "1.0.0",
    "calculatorUrl": "https://askcalculators.com/calculator/fixed-declining-balance-depreciation-calculator/",
    "queryExample": "https://askcalculators.com/calculator/fixed-declining-balance-depreciation-calculator/?cost=50000&salvageValue=5000&usefulLife=8&firstYearMonths=12",
    "migrationStatus": "new",
    "reviewStatus": "pending",
    "pageStatus": "live",
    "workStatus": "pending",
    "formula": {
      "expression": "fixed rate = 1 − (salvage ÷ cost)^(1/life); first and final years are prorated when applicable"
    },
    "quality": {
      "availability": "live",
      "technicalReviewRecord": "/reviews/fixed-declining-balance-depreciation-calculator.json",
      "qualifiedReview": "pending",
      "qualifiedReviewer": null,
      "qualifiedReviewDate": null,
      "formulaVersion": "1.0.0",
      "referenceCoverage": "references-pending",
      "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
      "historicalMetadataDate": "2026-09-01",
      "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
    },
    "outputs": {
      "fixedRate": {
        "title": "Fixed declining rate",
        "type": "number",
        "x-format": "percent",
        "x-digits": 6,
        "x-primary": true
      },
      "firstYearDepreciation": {
        "title": "First-year depreciation",
        "type": "number",
        "x-format": "currency"
      },
      "totalDepreciation": {
        "title": "Total scheduled depreciation",
        "type": "number",
        "x-format": "currency"
      },
      "endingBookValue": {
        "title": "Ending book value",
        "type": "number",
        "x-format": "currency"
      }
    }
  }
}