Why SIP investing works
A SIP — systematic investment plan — is simply investing a fixed amount every month, usually into a mutual fund. Its power comes from two quiet forces: compounding, where returns start earning their own returns, and rupee-cost averaging, where fixed monthly buying automatically purchases more units when prices dip. Neither feels dramatic in any single month; over ten or twenty years the arithmetic becomes hard to believe, which is exactly why a calculator helps.
How to use it
- Enter your monthly amount, an expected annual return, and how many years you'll stay invested. For context, long-run equity index returns have historically averaged 10–12% in South Asian markets — but past returns never guarantee future ones, so try conservative numbers too.
- Optionally add a yearly step-up — increasing your SIP by, say, 10% each year as income grows. The step-up's effect on the final number surprises everyone.
- Read the year-by-year table: the "gain" column growing faster than the "invested" column is compounding made visible.
Reading the results honestly
- The calculation assumes a steady monthly return; real markets lurch up and down around that average. The destination is realistic — the path is bumpier.
- Time in the market dominates: the same monthly amount over 20 years typically ends up with a gain several times larger than over 10 years. Starting small and early beats starting big and late.
- Inflation quietly shrinks what the final number buys — a crore twenty years from now is not today's crore.
- This is a planning tool, not investment advice; funds carry risk, and returns aren't guaranteed. For decisions involving serious money, talk to a licensed advisor.
Frequently asked questions
What return rate should I assume?
There's no guaranteed number. Broad equity index funds have historically averaged 10–12% annually over long periods in South Asian markets, but that's history, not a promise — run 8% and 10% too and plan around the conservative case.
What is a step-up SIP?
Increasing your monthly amount each year — commonly 10% — as your income grows. Because the biggest contributions then coincide with the most compounding years remaining, a modest step-up dramatically raises the final value; the calculator models it directly.
Is SIP better than investing a lump sum?
They're different tools. A lump sum invested early captures more market time; a SIP spreads risk across prices and matches how salaries actually arrive. For most monthly earners the practical answer is a SIP — the best plan is the one you can sustain.
Are the results guaranteed?
No — the calculator assumes a steady return for planning, while real markets fluctuate. Mutual fund investments carry risk. Treat results as scenarios, and consult a licensed advisor for decisions.