SIP stands for systematic investment plan. Instead of putting in a big amount at once, you invest a fixed amount in a mutual fund at regular times, usually every month. The money is taken from your bank account automatically on the date you choose.
A SIP is not a separate kind of investment. It is a way of putting money into a mutual fund. The fund itself decides what you are investing in and how much risk there is.
How it works, with numbers
Say you start a SIP of ₹1,000 a month in a made-up fund. The units you get each month depend on that day's NAV:
- Month 1: NAV ₹50 → you get 20 units.
- Month 2: NAV ₹40 → you get 25 units.
- Month 3: NAV ₹50 → you get 20 units.
You invested ₹3,000 and got 65 units. Your average cost is about ₹46 per unit (₹3,000 ÷ 65), lower than the simple average of the three NAVs (about ₹46.70). This happens because the same ₹1,000 buys more units when the price is low. It's called rupee cost averaging.
Rupee cost averaging smooths out when you buy. It does not guarantee a profit and does not protect you from losses if the fund's value falls and stays down.
Why people use SIPs
- You can start with small amounts.
- It builds a habit of saving regularly.
- You don't have to guess the "right day" to invest.
- Over a long time, regular amounts can add up, because any returns can earn returns too (compounding).
What a SIP can't do
Online, you may see posts like "SIP of ₹5,000 = ₹1 crore guaranteed". Such numbers assume a fixed return every year, which equity markets don't give. Real returns go up and down, and some years are negative. Treat any "guaranteed" SIP promise as a red flag. You can paste such a post into our Tip Checker to see its warning signs.
You can usually pause or stop a SIP whenever you want. Before starting one, read the fund's documents and check its riskometer.