A SIP from ₹500 a month: how it works and how to start one

2026-10-25 · 4 min read · Tryvest

Can you start a SIP with ₹500? Yes. How a SIP buys mutual fund units each month, a simple rupee example, common myths and what you need to begin.

Yes, you can start a SIP with ₹500 a month in India. Most mutual fund schemes accept a monthly SIP of ₹500, many large fund houses now allow even smaller amounts, and small SIPs of ₹250 (called Chhoti SIP) are also offered. A SIP, or systematic investment plan, simply moves a fixed amount from your bank account into a mutual fund on the same date every month, and the fund gives you units for that money.

How a SIP works, step by step

A mutual fund pools money from many people and invests it in shares, bonds or both. The price of one unit of the fund is called the NAV (net asset value), and it changes every working day as the fund's investments go up or down. If you are new to funds, our lesson on what a mutual fund is covers the basics.

1. You choose a scheme, an amount (say ₹500) and a date in the month.
2. You sign a mandate that lets the fund collect the money automatically from your bank account, through NACH or UPI AutoPay.
3. On each SIP date, ₹500 leaves your account and buys units at that day's NAV.
4. The units add up in your folio (or demat account), month after month, until you stop.

So the amount stays fixed, but the number of units you get changes with the NAV each month.

A simple rupee example

Say you put ₹500 a month into a fund for four months, and the NAV moves like this (made-up numbers for learning):

You invested ₹2,000 and own 101.25 units. Your average cost per unit is about ₹19.75, a little below the simple average NAV of ₹20.25. That happens because the same ₹500 buys more units when the NAV is low and fewer when it is high. This effect is called rupee cost averaging. It smooths your buying price; it does not promise a profit, and a fund's value can still fall below what you put in.

Over longer periods the bigger effect is compounding: gains start earning gains. As an illustration only, ₹500 a month for 10 years is ₹60,000 invested. If it earned an assumed 8% a year, it would grow to about ₹92,000; at an assumed 10% a year, to about ₹1.03 lakh. Real returns are not fixed and can be lower or negative. You can change the amount, years and rate yourself in the SIP calculator.

Common myths and mistakes

• "₹500 is too small to matter." The amount matters less at the start than the habit and the time it stays invested. Many people raise the amount later as their income grows.
• "A SIP is a product." It is not. A SIP is only a way of paying into a mutual fund. The risk comes from the fund you pick: an equity fund moves with the share market, a debt fund with interest rates.
• "A SIP guarantees returns." No. Unlike a fixed deposit, a mutual fund has no promised rate. Our post on SIP vs FD explains the difference.
• "Once I start, I am locked in." For most schemes you can stop a SIP whenever you want, with no penalty for stopping. Some schemes charge an exit load if you withdraw units early, and tax-saving funds have a lock-in, so read the scheme's terms.
• "Stopping in a falling market protects me." Stopping when prices drop means you stop buying at lower NAVs, which is exactly when rupee cost averaging does its work.

How it works in India: rules and what you need

Mutual funds in India are regulated by the Securities and Exchange Board of India (SEBI). Fund houses (asset management companies) belong to an industry body, AMFI. Before your first investment you must complete KYC, usually with your PAN, Aadhaar and a bank account in your name.

Minimum amounts are set by each fund house and scheme. Many still list ₹500 a month as the minimum SIP, while several of the largest fund houses have cut it to as low as ₹100. Under the Chhoti SIP idea promoted by SEBI and AMFI since early 2025, fund houses offer SIPs of exactly ₹250 for new investors, paid only by NACH or UPI AutoPay, with the special treatment limited to three such SIPs per investor. Exact terms differ by fund house, so check the scheme page before you begin.

You can choose a direct plan (bought straight from the fund house, lower yearly cost) or a regular plan (through a distributor, who is paid from the fund's charges). The yearly cost is shown as the expense ratio.

Key points

• You can start a SIP with ₹500 a month; many schemes accept less, and ₹250 Chhoti SIPs exist for new investors.
• A SIP invests a fixed amount on a fixed date and buys units at that day's NAV.
• Fixed amount, changing NAV: you buy more units when prices are low (rupee cost averaging).
• SIPs carry the fund's risk and never come with a guaranteed return.
• You need KYC and a bank mandate; you can usually stop a SIP any time.

Want to try it first without real money? Read lump sum vs SIP, then run a practice SIP in the Tryvest simulator with virtual coins.