{
  "id": "prorated-rent",
  "version": "286ddccf9035",
  "status": "published",
  "name": "Prorated Rent Calculator",
  "question": "What is my prorated rent?",
  "summary": "Computes the rent for part of a month when you move in or out: the monthly rent divided by the days in that month, times the days you live there.",
  "category": "finance",
  "subcategory": "mortgage-and-real-estate",
  "url": "https://www.acalculator.org/finance/prorated-rent-calculator",
  "markdown": "https://www.acalculator.org/finance/prorated-rent-calculator.md",
  "kind": "function",
  "method": "Prorated rent = monthly rent ÷ days in the move month × days charged. Move in: days charged = days in the month − move day + 1. Move out: days charged = the move day.",
  "assumptions": [
    "The daily rate uses the actual days in the move month (28, 29, 30 or 31), as in HUD Handbook 4350.3.",
    "The move date counts as a day you live there, for moving in and for moving out.",
    "Rent is due on the 1st of each month. Leases that use a 30-day or 365-day year give slightly different amounts."
  ],
  "inputs": {
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "type": "object",
    "properties": {
      "move": {
        "title": "Moving in or out?",
        "description": "Whether you move in (you pay from the move date to the end of the month) or move out.",
        "type": "string",
        "enum": [
          "in",
          "out"
        ]
      },
      "rent": {
        "title": "Monthly rent",
        "description": "The full rent for one month.",
        "type": "number",
        "x-unit": "USD",
        "exclusiveMinimum": 0,
        "maximum": 10000000
      },
      "date": {
        "title": "Move date",
        "description": "The day you move in or out. It counts as a day you live there.",
        "type": "string",
        "format": "date"
      }
    }
  },
  "outputs": {
    "prorated": {
      "label": "Prorated rent",
      "description": "The rent for the days you live there this month: daily rate × days.",
      "format": "money"
    },
    "days": {
      "label": "Days charged",
      "description": "Move in: the move date to the end of the month. Move out: the 1st to the move date. Both ends count.",
      "format": "integer"
    },
    "monthDays": {
      "label": "Days in the month",
      "description": "How many days the move month has (28 to 31).",
      "format": "integer"
    },
    "daily": {
      "label": "Daily rate",
      "description": "The monthly rent divided by the days in the move month.",
      "format": "money"
    },
    "rest": {
      "label": "Rest of the month",
      "description": "The part of the monthly rent for the days you do not live there: rent − prorated rent.",
      "format": "money"
    }
  },
  "defaultAnswer": {
    "inputs": {
      "move": "in",
      "rent": 1500,
      "date": "2026-10-05"
    },
    "outputs": {
      "prorated": 1306.4516129032259,
      "days": 27,
      "monthDays": 31,
      "daily": 48.38709677419355,
      "rest": 193.54838709677415
    },
    "text": "Moving on October 5, 2026 with a monthly rent of $1,500.00, you pay $1,306.45 for 27 of the 31 days in the month."
  },
  "examples": [
    {
      "given": {
        "move": "in",
        "rent": 2000,
        "date": "2026-02-10"
      },
      "expect": {
        "prorated": 1357.142857142857,
        "days": 19,
        "monthDays": 28
      },
      "source": "hand calculation in content.mdx: 2,000 ÷ 28 × 19 = 1,357.14"
    },
    {
      "given": {
        "move": "in",
        "rent": 1500,
        "date": "2026-09-15"
      },
      "expect": {
        "prorated": 800,
        "days": 16,
        "monthDays": 30,
        "daily": 50,
        "rest": 700
      },
      "source": "HUD Handbook 4350.3 Appendix 4-E method; hand calculation in content.mdx: 1,500 ÷ 30 × 16 = 800"
    },
    {
      "given": {
        "move": "out",
        "rent": 1500,
        "date": "2026-09-15"
      },
      "expect": {
        "prorated": 750,
        "days": 15
      },
      "source": "hand calculation in content.mdx: 1,500 ÷ 30 × 15 = 750"
    },
    {
      "given": {
        "move": "in",
        "rent": 2000,
        "date": "2028-02-10"
      },
      "expect": {
        "prorated": 1379.3103448275863,
        "days": 20,
        "monthDays": 29
      },
      "source": "hand calculation in content.mdx: 2,000 ÷ 29 × 20 = 1,379.31"
    },
    {
      "given": {
        "move": "out",
        "rent": 1200,
        "date": "2026-01-31"
      },
      "expect": {
        "prorated": 1200,
        "days": 31,
        "rest": 0
      },
      "source": "hand calculation in content.mdx: moving out on the last day pays the full month"
    }
  ],
  "sources": [
    "HUD Handbook 4350.3 REV-1, Appendix 4-E \"Applying the Model Lease for Subsidized Programs\" (06/07): divide the monthly rent by the actual number of days in the month and multiply by the days the tenant will occupy the unit. https://archives.hud.gov/offices/adm/hudclips/handbooks/hsgh/DOC_35769.PDF"
  ],
  "related": [
    "rent-vs-buy",
    "budget"
  ],
  "changelog": [
    {
      "date": "2026-09-29",
      "note": "Related links to rent vs buy and budget (user test 2026-09-29)."
    },
    {
      "date": "2026-10-01",
      "note": "The answer sentence reads “for 1 of the 29 days in the month”, not “for 1 days”."
    }
  ]
}