6 min read

How FUMONEY Calculates Everything

The inflation rates, expected returns, and formulas behind every number in your financial plan.

  1. 1

    Inflation rates used by FUMONEY

    FUMONEY uses category-specific inflation rates (based on historical Indian data): • General inflation: 6% per year • Education inflation: 9% per year • Medical inflation: 11% per year • Lifestyle / real estate: 7% per year When you set a goal, FUMONEY uses the appropriate rate to calculate how much that goal will cost at your target date.

    These rates are conservative estimates. Actual inflation may vary. FUMONEY errs on the side of requiring more savings rather than less.

  2. 2

    Expected investment returns

    FUMONEY uses these post-tax return assumptions: • Equity (mutual funds, stocks): 12% per year • Debt (FDs, bonds, PPF): 7% per year • Gold: 6% per year These are long-term historical averages, not guarantees. Short-term market returns will vary significantly.

    Past returns do not guarantee future performance. FUMONEY's projections are illustrative, not a promise of outcomes.

  3. 3

    How future value is calculated

    Future Value = Present Value × (1 + inflation rate) ^ years Example: A car costing ₹10L today, with 7% inflation, in 5 years: FV = ₹10L × (1.07)^5 = ₹14.03L This is why FUMONEY shows a future cost higher than today's cost for all goals.

  4. 4

    How monthly SIP is calculated

    SIP Required = Goal Amount × (monthly rate) ÷ ((1 + monthly rate)^months − 1) Where monthly rate = annual return ÷ 12, and months = years to goal × 12. This is the standard SIP formula used by all financial institutions.

  5. 5

    The FIRE multiplier (35×)

    FUMONEY uses 35× your inflation-adjusted annual retirement expense as your required corpus. The globally accepted benchmark is 25× (4% Safe Withdrawal Rate), but India demands more conservatism: medical inflation runs at 11%, life expectancy is rising fast, and sequence-of-returns risk is amplified in volatile emerging markets. 35× implies a ~2.86% withdrawal rate — a buffer that accounts for uncertainty without requiring impossible savings.

    The 35× rule means: if you need ₹12L/year to live comfortably in retirement (inflation-adjusted), your corpus must be ₹4.2 Crore.

  6. 6

    Important limitations

    All projections in FUMONEY assume: • Consistent monthly investments without breaks • Inflation and return rates remain close to historical averages • No major life shocks (job loss, health emergency) Real life is unpredictable. Treat these numbers as a baseline plan, not a guaranteed outcome. Review and update your plan at least once a year.

    FUMONEY is a planning tool, not a SEBI-registered advisory service. Please consult a qualified financial advisor before making large investment decisions.

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