SIP vs Lumpsum: which is better?

A SIP invests a fixed amount at regular intervals. A lumpsum invests it all at once. Neither is universally "better" — it depends on what you have and when.

When SIP wins

• You earn monthly and invest as you go — no need to time anything.
• Rupee-cost averaging: you buy more units when prices are low, fewer when high, smoothing your entry price.
• It removes emotion and builds discipline.

When lumpsum wins

• You already have a large amount sitting idle (a bonus, maturity, sale proceeds).
• Markets are reasonably valued or have just corrected.
• Historically, because markets rise more often than they fall, a lumpsum invested early often ends with a higher final value than staggering it — if you can stomach the volatility.

The practical answer

If you have a windfall but are nervous, an STP (Systematic Transfer Plan) is a middle path — park the money in a liquid fund and move a fixed sum into equity each month. For regular income, a SIP is almost always the right default.

→ Compare both outcomes with the SIP & Lumpsum calculators.