SIP Calculator: How Much to Invest for a ₹1 Crore Corpus

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Written by Astha Sethi·Reviewed by Adarsh Kumar, CWM

Oct 9, 20262 Min Read

"How much should I invest monthly to reach ₹1 crore?" is one of the most common questions in goal-based investing — and the answer depends heavily on your time horizon and assumed rate of return.

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Why Starting Early Changes Everything

Notice the gap between the 10-year and 25-year numbers: waiting an extra 15 years to start means needing roughly 8x less per month for the same ₹1 crore target. This isn't a trick of the math—it's compounding doing most of the work when you give it more time.

Two Mistakes That Throw the Math Off

1.    Assuming a flat return every year. Real markets don't move in a straight line—the SIP number above is a planning estimate, not a guarantee.

2.    Not increasing the SIP over time. A step-up SIP (increasing the monthly amount by a fixed % each year) can meaningfully shorten the time needed to reach the same goal.

→ Use the SIP Calculator to plan your own goal https://octaraa.com/resources

→ Start Goal Planning with Octaraa octaraa.com/goals

 

FAQs

Is 12% a guaranteed return for SIPs?
No. It's a commonly used illustrative assumption based on long-term historical equity averages actual returns vary and are never guaranteed.

What is a Step-Up SIP?

A Step-Up SIP is a SIP where the monthly investment increases by a predetermined amount or percentage at regular intervals, usually every year. Increasing contributions as income grows can help investors work toward larger long-term financial goals.

How much SIP is required to build ₹1 Crore?

The required SIP depends on your investment period and expected rate of return. A longer investment horizon generally reduces the monthly amount required because the investment has more time to compound. Use Octaraa's SIP Calculator to estimate the amount based on your own goal and time horizon.

Does starting a SIP earlier make a difference?

Yes. Starting earlier gives your investments more time to potentially benefit from compounding. If you couldn't start earlier, starting now may still give your investments more time to grow than waiting further.

Plan Your Investment Requirement:

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