What is the SIP vs Lumpsum?
With the same total money, a lumpsum is invested for the full period while a staggered SIP has money sitting idle waiting its turn. Mathematically, in a rising market the lumpsum almost always wins — more time in the market beats timing it.
The case for staggering is behavioural and risk-based, not mathematical: it protects you from investing everything the week before a crash, and it is far easier to stick with.
Formula & worked example
Compare full-period compounding against phased entry:
Staggered: add instalment for the first S months, compound all N months
Worked example: ₹12,00,000 over a 10-year horizon at 12%. Invested as a lumpsum it grows to about ₹39.6 lakh. Spread over 12 monthly instalments of ₹1,00,000 it reaches about ₹37.3 lakh — the lumpsum is roughly ₹2.3 lakh ahead, purely because the money started compounding sooner.
How to use this sip vs lumpsum calculator
- Enter the total amount you have to deploy.
- Set how many months you would spread it over (this is an STP, not a salary SIP).
- Keep the horizon the same for both so the comparison is fair.
- Read the gap — then decide if the peace of mind is worth that amount.
Smart tips
- This compares deploying existing money. A salary SIP is not optional staggering — it is simply how you invest as you earn.
- If you must stagger, use an STP from a liquid fund so the waiting money still earns 6–7% rather than nothing.
- The longer the horizon, the more the lumpsum wins. Over 20 years the entry point barely matters.
- Staggering over more than 12 months rarely helps — you give up a lot of compounding for diminishing risk reduction.
Frequently asked questions
Is SIP or lumpsum better?
Mathematically lumpsum usually wins because the money compounds longer. Staggering wins on risk control and discipline, which matters if a sharp early fall would make you exit.
What is an STP?
A Systematic Transfer Plan moves money gradually from a liquid fund into an equity fund. It is the correct way to stagger a lumpsum, since the parked money keeps earning.
Should I wait for a market correction to invest a lumpsum?
Waiting reliably costs more than it saves. Markets rise more often than they fall, and the correction may come from a level above today's.
Does this apply to my monthly salary SIP?
No. If you are investing as you earn, a SIP is the only option available — this comparison is for money you already hold.
Want the theory behind the numbers? Read our SIP vs lumpsum on the Money Blog.