What is SIP and How Does It Work? A Beginner’s Guide
By Sahil, FinoSphere Pro · Last reviewed: June 28, 2026
Published on: July 2026 | Read Time: 5 min
A Systematic Investment Plan (SIP) is a disciplined method of investing a fixed sum of money regularly into mutual funds. It is one of the most effective tools for beginners to build long-term wealth without worrying about market timing.
Instead of investing a large lump sum all at once, a SIP allows you to automate your investments on a daily, monthly, or quarterly basis. For example, allocating ₹5,000 every month on a set date (like the 5th, right after payday) ensures you build an investing habit effortlessly.
How SIP Works: Rupee Cost Averaging
The primary advantage of SIP investing is **Rupee Cost Averaging**. Since mutual fund Net Asset Values (NAVs) fluctuate daily based on market conditions, your fixed monthly payment buys a varying number of fund units:
- When markets are down: Fund NAVs are low, so your installment automatically purchases more units.
- When markets are up: Fund NAVs are high, so your installment purchases fewer units.
Over a long investment horizon, this process averages out your cost per unit, eliminating the risk of investing all your cash right before a market correction.
The Power of Compounding
Compounding is the process where the returns you earn on your investment start generating returns of their own. Over 10 to 20 years, this compound effect grows exponentially:
- If you invest ₹10,000 monthly for 10 years at 12% CAGR, you invest ₹12 Lakhs, which grows to ₹23.2 Lakhs.
- If you extend this same SIP to 20 years, you invest ₹24 Lakhs, which swells to ₹1.00 Crore.
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