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CalcTortoise

Step-by-step guide

Starting a SIP: what does waiting cost you?

Enter your monthly SIP and your age. See what starting now is worth — and what waiting costs.

Written by the CalcTortoise editorial team · How we work

Your numbers

years
Assumed: money at 60, a 15-year delay, 12% return, 10% yearly raise. Change
years
years

Start now, and at 60 you could have

₹3.53 crore

You put in ₹36 lakh. Waiting 15 years costs ₹3.03 crore.

Why these numbers?
  • SIP paid at the start of each month, growth added monthly — the same formula as our SIP calculator.
  • Returns are not guaranteed; plan with a figure you would be happy with.
  • PPF pays 7.1% tax-free on up to ₹1.2 lakh a year; equity gains above ₹1.25 lakh a year are taxed at 12.5% when you sell.

Sources: PPF rate and limit from the official India Post rates table; equity capital-gains tax from sections 196 and 198 of the Income-tax Act, 2025.

Frequently asked questions

What is a SIP?

A SIP (systematic investment plan) puts a fixed amount into a mutual fund every month. Each payment buys units at that day’s price, so you invest steadily without timing the market.

Is it too late to start a SIP at 45?

No, but it costs more. ₹10,000 a month from 30 to 60 at 12% grows to ₹3.53 crore; started at 45, the same SIP grows to ₹50.46 lakh. To catch up you would need about ₹69,958 a month.

PPF or SIP — which is better for 15 years?

PPF pays a government-set rate (7.1% now) and is fully tax-free; a SIP in equity funds can earn more but can also fall. In the example, ₹1.2 lakh a year for 15 years gives ₹32.55 lakh in PPF and ₹46.56 lakh in a SIP at 12% after tax. Many people use both.

How is a SIP taxed when I sell?

Equity fund units held over 12 months are taxed at 12.5% on gains above ₹1.25 lakh a year; units held for less are taxed at 20%. Selling over a few years uses the exemption more than once.

What return should I expect from a SIP?

No one can promise one. The Nifty 50 with dividends grew 13.2% a year from 2000 to 2025, with years as bad as -51.27% in between. Plan with a lower figure; step 5 shows the difference.

Calculators this guide uses

Last updated 10 October 2026. For information only — not financial advice. Check the final figures with your fund house or adviser.