What is a SIP and How Does It Work? A Complete Beginner's Guide

What is a SIP?

A Systematic Investment Plan (SIP) is a method of investing a fixed amount regularly (usually monthly) into a mutual fund scheme. Think of it like a recurring deposit, but instead of a bank, your money goes into mutual funds.

How Does SIP Work?

When you set up a SIP of ₹5,000/month in an equity mutual fund:

1. Every month, ₹5,000 is auto-debited from your bank account
2. The fund house buys units at the current NAV (Net Asset Value)
3. When NAV is high, you get fewer units. When low, you get more
4. This averaging effect is called Rupee Cost Averaging

Example: ₹5,000 SIP Over 6 Months

Month	NAV	Units Purchased
Jan	₹50	100
Feb	₹45	111.1
Mar	₹40	125
Apr	₹42	119
May	₹48	104.2
Jun	₹52	96.2

Total invested: ₹30,000
Total units: 655.5
Average cost per unit: ₹45.77
Current value: 655.5 × ₹52 = ₹34,086
Profit: ₹4,086 (13.6%)

Why SIP is Powerful

1. Rupee Cost Averaging

You buy more units when markets are down, fewer when up — automatically lowering your average cost.

2. Power of Compounding

A ₹5,000/month SIP at 12% return grows to:

• 5 years: ₹4.12 lakh
• 10 years: ₹11.6 lakh
• 20 years: ₹49.9 lakh
• 30 years: ₹1.76 crore

3. Discipline

SIPs enforce regular investing — you don’t need to time the market or make active decisions.

How to Start a SIP

1. Complete KYC — PAN + Aadhaar verification (one-time, free)
2. Choose a platform — Groww, Kuvera, Zerodha Coin, or AMC website
3. Pick a fund — Start with a Nifty 50 index fund for simplicity
4. Set SIP amount and date — Even ₹500/month is a great start
5. Set up auto-debit — Link your bank account for hassle-free investing

Common Mistakes to Avoid

• ❌ Stopping SIP during market crashes (that’s when you should increase!)
• ❌ Choosing funds based on recent 1-year returns
• ❌ Investing without a goal in mind
• ❌ Not increasing SIP amount annually