{
    "name": "RD Calculator",
    "url": "https://calculators.geekmidst.com/calculators/recurring-deposit-maturity-calculator",
    "markdown": "https://calculators.geekmidst.com/calculators/recurring-deposit-maturity-calculator.md",
    "category": "India tax & investing",
    "description": "Work out the maturity value of a bank or post office recurring deposit from the monthly instalment, interest rate, tenure and compounding frequency.",
    "summary": "In a recurring deposit you pay a fixed amount every month. Each instalment earns interest from the month it is paid, compounded (usually quarterly) until maturity.",
    "also_called": [
        "Recurring deposit calculator",
        "RD interest calculator"
    ],
    "applies_to": "India",
    "last_updated": "2026-10-29",
    "computation": "Results are computed in the visitor’s browser on the HTML page. This API describes the calculator; it does not compute results.",
    "inputs": [
        {
            "name": "instalment",
            "label": "Monthly instalment",
            "type": "number",
            "default": "5000"
        },
        {
            "name": "rate",
            "label": "Interest rate (per year)",
            "type": "number",
            "default": "7",
            "unit": "%"
        },
        {
            "name": "months",
            "label": "Tenure",
            "type": "number",
            "default": "60",
            "unit": "months"
        },
        {
            "name": "compounding",
            "label": "Interest compounded",
            "type": "segmented",
            "default": "quarterly",
            "options": {
                "quarterly": "Quarterly",
                "monthly": "Monthly",
                "yearly": "Yearly"
            }
        },
        {
            "name": "currency",
            "label": "Currency",
            "type": "hidden",
            "default": "INR"
        }
    ],
    "outputs": [
        {
            "key": "maturity",
            "label": "Maturity value",
            "format": "currency"
        },
        {
            "key": "invested",
            "label": "Total deposited",
            "format": "currency"
        },
        {
            "key": "interest",
            "label": "Interest earned",
            "format": "currency"
        }
    ],
    "formula": {
        "text": "M = Σ P × (1 + r ÷ q)^(q × t ÷ 12) over every instalment, where t is the months it stays invested. For quarterly compounding: M = P × [(1 + i)^(n/3) − 1] ÷ [1 − (1 + i)^(−1/3)], i = r ÷ 4",
        "variables": {
            "P": "monthly instalment",
            "r": "annual interest rate ÷ 100",
            "q": "compounding periods per year",
            "n": "tenure in months"
        }
    },
    "worked_example": {
        "inputs": {
            "instalment": "5000",
            "rate": "7",
            "months": "60",
            "compounding": "quarterly",
            "currency": "INR"
        },
        "steps": [
            "i = 7% ÷ 4 = 1.75% a quarter; n = 60 months = 20 quarters.",
            "(1.0175)²⁰ = 1.41478 and 1 − (1.0175)^(−1/3) = 0.0057662.",
            "M = 5,000 × 0.41478 ÷ 0.0057662 ≈ ₹3,59,664."
        ],
        "result": "₹5,000 a month for five years at 7% compounded quarterly matures at about ₹3.60 lakh, of which ₹59,664 is interest."
    },
    "interpretation": "An RD earns less than a lump-sum fixed deposit at the same rate, because each instalment is invested for a shorter time. Compare the interest with what a SIP or a PPF might earn over the same period.",
    "assumptions": [
        "Each instalment is paid at the start of its month and earns interest for the remaining months.",
        "The rate is fixed for the tenure, as it is for bank and post office RDs once opened."
    ],
    "limitations": [
        "Some banks round the maturity differently or use slightly different day counts.",
        "TDS on interest and penalties for missed instalments are not included."
    ],
    "rules": null,
    "faqs": [
        {
            "question": "Is RD interest taxable?",
            "answer": "Yes, RD interest is taxed as income at your slab rate, and banks may deduct TDS once interest crosses the threshold."
        },
        {
            "question": "Why is quarterly compounding used?",
            "answer": "Quarterly compounding is a common convention for Indian RDs, but check the terms of your deposit and choose the frequency it states."
        }
    ],
    "sources": [],
    "related": [
        {
            "name": "PPF Calculator",
            "url": "https://calculators.geekmidst.com/calculators/ppf-maturity-calculator"
        },
        {
            "name": "Sukanya Samriddhi Calculator",
            "url": "https://calculators.geekmidst.com/calculators/sukanya-samriddhi-maturity-calculator"
        },
        {
            "name": "Compound Interest Calculator",
            "url": "https://calculators.geekmidst.com/calculators/compound-interest-calculator"
        },
        {
            "name": "SIP Calculator",
            "url": "https://calculators.geekmidst.com/calculators/sip-calculator"
        }
    ],
    "disclaimer": "Returns are illustrations at a constant rate, not predictions or guarantees. Investments can lose value. This is not investment advice.",
    "publisher": "GM¹X CalcVerse"
}