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Lumpsum vs FD — where should a one-time amount go?

Both take the same one-time amount, but a Fixed Deposit locks in a guaranteed rate while a lumpsum into equity mutual funds carries market risk in exchange for higher long-run growth potential. Compare both on the same starting amount and horizon.

Run it on your own numbers

Lumpsum Calculator vs FD Calculator10-year comparison

Opens Compare Lab pre-loaded with both, in your own currency — adjust any input and the chart updates instantly.

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How each one actually works
Lumpsum Investment

A one-time amount invested into equity mutual funds all at once, rather than spread out over time.

PROS
More of your money is exposed to growth for longer, in a rising market
Simpler to execute — one transaction
No ongoing commitment required
CONS
Full exposure to a bad entry point if the market drops right after investing
No averaging effect to smooth out volatility
Requires having the full amount available upfront

Best for: A windfall (bonus, inheritance, asset sale) when you don't have another pressing use for it and can leave it invested long-term.

Fixed Deposit (FD)

A lump sum deposited with a bank for a fixed tenure at a fixed, guaranteed interest rate.

PROS
Fully guaranteed return — no market risk
Predictable maturity value known upfront
Widely available and simple to open
CONS
Interest is fully taxable at your slab rate every year it accrues
Return is capped — no upside beyond the fixed rate
Early withdrawal usually triggers a penalty

Best for: Capital you can't afford to risk — an emergency fund, or a short-term goal within a couple of years.

Questions
Is a lumpsum riskier than an FD?

Yes — a lumpsum's full amount is exposed to the market from day one, so a downturn right after investing has a bigger impact than it would on a staggered SIP. An FD carries no market risk, but its return is capped at the fixed rate.

Where do these numbers actually come from?

The same calculation engine that powers our standalone calculators and Compare Lab — nothing here is a separate or simplified estimate. Every assumption (rate, tenure, tax) is visible and adjustable once you open the comparison with your own numbers.

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All figures are illustrative projections based on the assumptions you select, not guaranteed returns. Validate tax and scheme rules before making financial decisions.