{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://askcalculators.com/calculator/annuity-calculator/schema.json",
  "title": "Annuity Calculator inputs",
  "description": "Calculate the future value of a fixed annuity investment.",
  "type": "object",
  "properties": {
    "initialInvestment": {
      "title": "Initial Investment ($)",
      "type": "number",
      "default": 50000
    },
    "years": {
      "title": "Growth Period (Years)",
      "type": "number",
      "default": 20
    },
    "rate": {
      "title": "Annual Interest Rate (%)",
      "type": "number",
      "default": 5.5
    }
  },
  "required": [],
  "additionalProperties": false,
  "x-askcalculators": {
    "version": "7.0.0",
    "calculatorUrl": "https://askcalculators.com/calculator/annuity-calculator/",
    "queryExample": "https://askcalculators.com/calculator/annuity-calculator/?initialInvestment=50000&years=20&rate=5.5",
    "migrationStatus": "migrated",
    "reviewStatus": "pending",
    "pageStatus": "live",
    "workStatus": "pending",
    "migratedDate": "2026-08-18",
    "formula": {
      "expression": "Future value = initial investment × (1 + annual rate)^years; interest earned = future value − initial investment."
    },
    "quality": {
      "availability": "live",
      "technicalReviewRecord": "/reviews/annuity-calculator.json",
      "qualifiedReview": "pending",
      "qualifiedReviewer": null,
      "qualifiedReviewDate": null,
      "formulaVersion": "7.0.0",
      "referenceCoverage": "references-pending",
      "releaseTestScope": "Catalog and regression checks are not a professional formula audit; consult release evidence.",
      "historicalMetadataDate": "2026-08-18",
      "historicalMetadataNotice": "The imported date is not evidence of a completed human review."
    },
    "outputs": {
      "result": {
        "title": "Result",
        "type": "string",
        "x-format": "text",
        "x-primary": true
      }
    }
  }
}