- Summary
- A Systematic Investment Plan (SIP) lets you invest a fixed amount in a mutual fund at regular intervals. The minimum varies by scheme, though ₹500 monthly SIPs are commonly available.
- Each instalment buys units at the applicable NAV, so you receive more units when the NAV is lower and fewer when it is higher.
- SIPs support disciplined investing, rupee cost averaging and compounding over time, but they do not remove market risk or guarantee returns.
- To start, complete KYC, choose a suitable fund, decide the amount and frequency, and set up the required bank mandate or auto-pay instruction.
What is a SIP (Systematic Investment Plan)?
A Systematic Investment Plan (SIP) is where you invest a fixed amount in a mutual fund at regular intervals. The amount of each instalment is invested at the then prevailing Net Asset Value (NAV) on the day of investment. So if you have a monthly SIP of Rs 1,000, Rs 1,000 will be invested on each of the scheduled days, and you will buy more units when the NAV is low and fewer units when the NAV is high.
SIPs are therefore ideal for the investor who would rather make regular investments rather than put in a large sum at one time or try to time the market.
The minimum amount that can be invested through a SIP varies from scheme to scheme. A monthly SIP of Rs 500 is generally available, and in some cases even lower amounts than this are permitted. Investors should check the scheme specifics prior to investing.
How do SIPs work?
A SIP works by investing a fixed amount at regular intervals. The investor selects the mutual fund, the amount of the SIP and the date, and can set up a direct debit from their bank account.
Consider a simple example:
| Month | SIP amount | NAV | Units purchased |
| 1 | ₹1,000 | ₹20 | 50 |
| 2 | ₹1,000 | ₹25 | 40 |
| 3 | ₹1,000 | ₹20 | 50 |
| 4 | ₹1,000 | ₹16 | 62.5 |
| 5 | ₹1,000 | ₹20 | 50 |
| Total | ₹5,000 | 252.5 |
Total amount invested is ₹5,000, and the investor ends up with 252.5 units. The average cost per unit is approximately ₹19.80.
This is an instance of rupee cost averaging, also referred to as dollar-cost averaging. If the net asset value (NAV) is low, a given amount will buy more units, but if the NAV is high, it will buy fewer units.
XIRR can be used to calculate the annualised return where investments were made on different dates (i.e. where there are multiple cash flows at different times).
Benefits of SIP
SIPs offer a number of benefits to the investor who wishes to invest in a regular manner (though of course returns are not guaranteed).
- Rupee cost averaging: a fixed contribution will buy more units when the NAV is low and fewer units when the NAV is high. This can help to average out the cost of the purchase over a number of instalments.
- Power of compounding: When investment gains remain invested, they may generate further gains over time. Compounding can have a greater effect over longer periods, although actual returns depend on market performance.
- Disciplined investing: regular contributions can help you get into the habit of investing and avoid the constant delaying of the inevitable investment decision.
- Flexible contributions: investors can pick an amount and frequency of contribution available under the scheme which is appropriate to their income and financial objectives.
- Less reliance on market timing: a SIP spreads the investment over a number of dates rather than requiring the full amount to be invested at one go.
- Accessibility: some schemes are such that you can start with fairly small amounts (depending on your minimum investment).
SIPs do nothing to eliminate market risk and will not guarantee any return. The value of investments in mutual funds can go up or down.
Types of SIP
The SIP options vary from one mutual fund house to another. The various types available are regular, top-up, step-up, flexible, perpetual, trigger and multi-SIPs. The availability and the terms will, of course, vary from provider to provider.
- Regular SIP: Invests a fixed amount at regular intervals (e.g. monthly or quarterly).
- Top-up (Step-up) SIP: A top-up SIP or step-up SIP enables an investor to increase their SIP contribution by a fixed amount or a fixed percentage at periodic intervals (usually annually) as per the scheme’s rules.
- Flexible SIP: enables contributions to be varied within the parameters and conditions provided by the provider.
- Perpetual SIP: has no end date and will continue until it is cancelled or withdrawn in accordance with the relevant terms.
- Trigger SIP: Uses a pre-defined trigger condition (e.g. a specific NAV or market level) as provided by the provider. The trigger in no way guarantees a favourable investment outcome.
- Multi-SIP: Enables an investor to split their investments across a number of schemes via a single facility (where available).
The right option for an investor will depend on their cash flow, their investment objectives and the features that are available from the provider. A SIP type does not in any way make the underlying mutual fund less risky and will not guarantee better returns.
SIP calculator: how much will your SIP grow?
A SIP-based calculator can work out the future value of your regular investments by taking into account the amount you invest each month, the length of time you’re investing for and the assumed rate of return.
For example, a monthly SIP of Rs.1000 over 5 years would be 60 payments, and the total investment would be Rs.60,000. Likewise, a monthly SIP of Rs.3000 over the same period would be a total investment of Rs.1,80,000.
The figure arrived at is dependent upon the performance of the investment and the return figure used in the calculation. As mutual fund returns are market-linked, the figures should not be treated as guaranteed results.
A SIP calculator will give you an estimate of your returns based on your monthly investment, the duration of your investment, and the assumed rate of return. You can use it to compare the returns on a monthly SIP of Rs 1,000 or Rs 3,000 over a period of 5 years. These are all estimates and the actual returns may be different depending on the market performance.
SIP vs lumpsum: which is better?
There are two ways of investing in mutual funds: via a SIP or a lump sum investment.
| Feature | SIP | Lumpsum |
| Investment method | Regular instalments | A single investment |
| Timing | Investments are spread across different dates | The amount is invested at one point |
| Cash flow | Can suit people investing from regular income | Requires a larger amount upfront |
| Investment discipline | Encourages regular contributions | Depends on the investor’s approach |
| Example | ₹3,000 each month | ₹1,80,000 invested at once |
A SIP is ideal for someone with a regular income who is looking to invest gradually. A lumpsum investment is the right route for someone who already has a significant amount of money to invest.
That particular approach isn’t the right one in all circumstances. It may well depend on your cash flow, your investment time frame, your objectives and the state of the market.
An investor who wishes to compare the potential outcome of a single investment can use a lumpsum calculator.
How to start a SIP (step by step)
Starting a SIP generally involves these steps:
- Full KYC: You must complete the required Know Your Customer verification prior to investing.
- Choose a mutual fund: pick a scheme according to your own financial objectives, your investment horizon, and your level of risk tolerance.
- Set your investment amount (choose one that works for you and won’t impact your basic living expenses).
- Select the date and frequency: pick an available SIP date and frequency (e.g., monthly).
- Set up automatic payments: submit the required bank mandate/payment instruction so that the instalments can be debited automatically.
- Review your investment. Check its progress from time to time and review it again if your financial situation or objectives change.
How to choose the best SIP
When picking a SIP, you should select a contribution amount and a schedule which is appropriate to your own financial situation and also pick an appropriate mutual fund scheme. Prior to investing, you should think about your own financial objectives, the time period over which you intend to invest, and your own ability to take on market risk.
When you’re looking at mutual funds, you should consider their investment objective, the composition of their portfolio, the level of risk, the costs, and how they’ve performed over different periods. It’s vital to remember that past performance is no guarantee of future results and a SIP in no way makes a high-risk fund any less risky.
Anyone who wants to find out more should look at the best SIP plans and compare them against their own financial objectives.
SIP taxation (basics)
The tax treatment of an SIP will largely depend on the type of mutual fund and the holding period of the units.
For eligible equity-oriented mutual funds, units held for more than 12 months will generally be treated as long-term capital assets. For transfers on or after 23 July 2024, long-term capital gains in excess of ₹1.25 lakh in a financial year will generally be taxed at 12.5% under Section 198 of the Income-tax Act, 2025 (previously Section 112A of the Income-tax Act, 1961). Short-term capital gains on eligible units held for 12 months or less will generally be taxed at 20% under Section 196 of the Income-tax Act, 2025 (previously Section 111A of the Income-tax Act, 1961) subject to the relevant conditions. The above rates are subject to applicable surcharge and cess.
As each SIP instalment is an individual investment made on a different date, each instalment will have its own holding period. This is something which must be borne in mind when calculating your capital gain at redemption.
Investors can also invest in Equity Linked Savings Schemes (ELSS) through SIPs. Each instalment has a separate three-year lock-in period. Eligible ELSS investments may qualify for a deduction of up to ₹1.5 lakh under Section 123 read with Schedule XV of the Income-tax Act, 2025 (formerly Section 80C of the Income-tax Act, 1961), subject to the applicable conditions. This deduction is generally available under the old tax regime, not the new tax regime.
Tax rules can change, so investors should check the rules applicable to the relevant tax year before making any tax-related decisions.
Conclusion
With a SIP, you can invest regularly into a mutual fund rather than investing the entire amount at one go, and the plan can promote disciplined investing, facilitate rupee cost averaging and potentially benefit from the power of compounding over time.
When you’re about to start a SI P you should consider your financial objectives, your investment horizon, your level of risk tolerance, the costs of the fund and the applicable taxes. It must be stressed that SIPs do not guarantee a return and that the value of your investment in a mutual fund can go down as well as up.
FAQs
If ₹1,000 is invested each month for 5 years, the total amount spent will be ₹60,000. The final value cannot be determined in advance since it will vary according to the mutual fund’s performance and the assumed rate of return. In order to estimate the possible value, an SIP calculator can be used with different assumptions regarding the rate of return.
A SIP involves investing a fixed amount into a mutual fund at regular intervals. For instance, with a ₹1,000 monthly SIP, ₹1,000 is invested each month. If the NAV is low, then ₹1,000 will buy more units; if the NAV is high, it will buy fewer units. As a result of many such instalments, an average purchase cost is achieved.
The seven types usually mentioned are Regular SIP, Top-up or Step-up SIP, Flexible SIP, Trigger SIP, Perpetual SIP, Multi SIP and SIP with Insurance; since each of these has its own features, the investor’s needs and the specific terms of the scheme will determine which one is chosen.
A SIP and a lumpsum investment work differently. A SIP spreads investments across multiple dates, while a lumpsum investment puts the available amount into the market at one time. The suitable approach depends on factors such as available funds, cash flow, investment horizon and financial goals.
The minimum SIP amount depends on the mutual fund scheme. ₹500 per month is a commonly available minimum, though some schemes and SIPs may allow lower amounts. Investors should check the specific scheme’s current minimum investment requirement before starting a SIP.
