How SIP Works — A Complete Guide to Systematic Investment Plans
Online Calculators TeamMarch 01, 20258 min readFinance, Investing
A Systematic Investment Plan (SIP) is one of the most powerful wealth-building tools available to Indian investors. This comprehensive guide explains everything you need to know about SIP investing.
What is a SIP?
A SIP is a method of investing a fixed amount at regular intervals (usually monthly) in a mutual fund. Instead of investing ₹1,20,000 as a lump sum, you might invest ₹10,000 every month for 12 months.
How SIP Returns Are Calculated
Each monthly investment compounds independently. The formula for SIP future value is:
FV = P × ((1+r)^n - 1) / r × (1+r)
Where P is monthly investment, r is monthly return rate, and n is number of months.
Rupee Cost Averaging
When markets fall, your fixed SIP amount buys more mutual fund units. When markets rise, you buy fewer units. Over time, this averages your purchase cost and reduces the impact of market volatility.
Step-Up SIP Strategy
Increasing your SIP by 10% annually can dramatically accelerate wealth creation. A ₹5,000 SIP stepped up by 10% yearly for 20 years at 12% returns can build a corpus exceeding ₹1 crore.
Common SIP Mistakes to Avoid
Stopping SIP during market downturns (this defeats rupee cost averaging)
Choosing funds based only on recent performance
Not aligning SIP with specific financial goals
Ignoring expense ratios and exit loads
Try Our SIP Calculator
Use our free SIP Calculator to project your investment returns based on your monthly amount, expected return, and investment period.