SIP Calculator

Standard SIP maths used by Indian mutual funds, also valid for any monthly investing plan or dollar-cost averaging.

Last updated 19 October 2026

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How it works

Each monthly instalment compounds from the month it is invested, so early instalments contribute far more to the final value than later ones. A step-up SIP raises the instalment by a fixed percentage every year, matching salary growth and dramatically increasing the final corpus.

Formula

M = P × ((1 + i)ⁿ − 1) ÷ i × (1 + i), where i = annual return ÷ 12, n = months
Step-up: P increases by the step-up % every 12 months

Worked example

10,000 a month at 12% for 10 years: invested 1,200,000; maturity ≈ 2,323,000. With a 10% annual step-up: invested 1,912,000; maturity ≈ 3,285,000.

Frequently asked questions

Is 12% a realistic return?

It is the conventional assumption for Indian equity funds based on long-run history, not a guarantee. Use 8–10% to be conservative; global developed-market equities have returned 7–9% nominal.

What is a step-up SIP?

A SIP where the monthly amount increases automatically each year (typically 5–10%). It lets contributions track your income and roughly doubles the corpus over 20 years compared with a flat SIP.

Is SIP better than a lump sum?

A lump sum invested at the start usually ends higher in a rising market; a SIP reduces timing risk and suits salaried investors. Most people should do both: SIP from salary, lump sums when available.

Is SIP investing halal?

The method is neutral; it depends on the fund. Shariah-compliant equity funds exist in India (Tata Ethical, Taurus Ethical), the GCC and the UK.

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This calculator is provided for general information only and does not constitute financial, tax, legal or employment advice. Rules change and individual contracts, free-zone regulations and court rulings can differ. Always verify with your employer, the relevant ministry or a licensed professional.