Raises your monthly SIP by this % every year. Also called a step-up SIP.
Enter your SIP details to see how your wealth grows
Corpus projection and growth chart will appear here
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Raises your monthly SIP by this % every year. Also called a step-up SIP.
Enter your target to find your monthly SIP
Your required SIP and return sensitivity will appear here
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What if returns change?
12%Cost of Waiting
Every 6 months you delay, your required SIP goes up.
Learn
A ₹5,000 monthly SIP for 20 years at 12% a year grows to about ₹50 lakh. You put in ₹12 lakh. The other ₹38 lakh comes from compounding. That gap between what you invest and what you end up with is what a SIP calculator helps you see, and it is why the number of years matters more than most people expect.
This free SIP calculator works in two directions. Use Calculate corpus to see what a monthly SIP grows to, or Find my SIP to work out the monthly amount you need for a target such as ₹1 crore. Both accept an optional yearly increase (a step-up SIP), and Find my SIP also shows what waiting a few months costs you.
A SIP, or Systematic Investment Plan, is a way of investing a fixed amount in a mutual fund at regular intervals, usually every month. You choose the fund, the amount and the date once, and the money is debited from your bank account automatically. Many fund houses accept SIPs from as little as ₹100 or ₹500 a month, so you do not need a large sum to begin.
Each instalment buys units at that day's NAV (Net Asset Value). When the market is down, the same amount buys more units. When it is up, it buys fewer. A ₹5,000 instalment buys 50 units at a NAV of ₹100 and 62.5 units at a NAV of ₹80. Over many months this averaging, called rupee cost averaging, means you do not have to guess the right day to invest.
Calculate corpus shows what a monthly SIP grows to. Enter the monthly amount, the return you expect and the number of years. You get the total corpus, how much of it is your money and how much is returns, and a year by year growth chart.
Find my SIP works backwards from a goal. Enter the target amount and the years you have, and it gives the monthly SIP needed. The "What if returns change?" slider shows how that number moves at lower or higher returns, and the Cost of Waiting table shows what delaying the start would cost.
Increase SIP every year is optional in both tabs. Enter a percentage and the calculator shows a flat SIP and a SIP that goes up by that percentage every year, side by side. In Find my SIP it also tells you how much sooner you would reach the same goal.
All results are estimates based on a constant return. Each instalment is assumed to be invested at the start of the month, and the return is compounded monthly.
The future value of a SIP is:
FV = P × [((1 + i)^n - 1) / i] × (1 + i)
P is your monthly SIP, i is the monthly return (annual return ÷ 12 ÷ 100) and n is the number of months. To find the SIP needed for a target, the same formula is rearranged: P = Target × i / [((1 + i)^n - 1) × (1 + i)]
Take ₹5,000 a month for 10 years at 12%. The monthly return i is 0.01 and n is 120. (1.01)^120 is 3.3004, so the bracket works out to (3.3004 - 1) / 0.01 = 230.04. Multiply by 1.01 to get 232.34, then by 5,000, and you get about ₹11.62 lakh. You invested ₹6 lakh, so about ₹5.62 lakh is returns.
The extra (1 + i) at the end is there because the calculator treats each instalment as invested at the start of the month. If your instalment is debited at the end of the month, the result is about 1% lower at a 12% return, which is one reason different SIP calculators show slightly different answers.
Compounding means your returns earn returns. In the early years, most of your corpus is money you put in. As time passes, returns pile on top of earlier returns and the growth curve bends upward. That is why the chart in this calculator is a curve and not a straight line.
At 12%, the returns in a SIP overtake the money you have invested at around month 126, about 10.5 years in. After that, most of each year's growth is compounding rather than new savings.
Why the second decade matters: two separate 10-year SIPs of ₹5,000, each withdrawn at the end, give about ₹23.2 lakh in total. One 20-year SIP of the same ₹5,000 gives about ₹50.0 lakh. The money invested is identical. The extra comes from leaving it alone.
A step-up SIP (also called a top-up SIP) raises your monthly amount by a fixed percentage every year, usually in line with your income. Instead of ₹10,000 for 20 years, you might start at ₹10,000 and raise it by 10% each year: ₹11,000 in year two, ₹12,100 in year three, and so on. In this calculator the increase happens once a year, on each anniversary of your first instalment, and the amount stays the same for the twelve months in between.
| Yearly increase | SIP in year 20 | Total invested | Corpus after 20 years |
|---|---|---|---|
| None (flat SIP) | ₹10,000 | ₹24.00 L | ₹99.91 L |
| 5% every year | ₹25,270 | ₹39.68 L | ₹1.37 Cr |
| 10% every year | ₹61,159 | ₹68.73 L | ₹1.99 Cr |
Starting SIP of ₹10,000 a month, 12% a year, 20 years. L is lakh and Cr is crore.
The table shows the trade-off honestly. A 10% yearly increase roughly doubles the corpus, but by year 20 you are paying ₹61,159 a month, so it only works if your income keeps pace. A smaller increase such as 5% still adds a lot: ₹1.37 crore instead of ₹99.91 lakh.
Find my SIP uses the increase differently: it keeps your start amount and shortens the timeline. For ₹1 crore in 20 years at 12%, a flat SIP is about ₹10,009 a month. Start at that same amount but raise it by 10% every year and you reach ₹1 crore in 15 years 10 months, about 4 years sooner. A 5% yearly increase gets you there in 17 years 10 months. You invest more in total (about ₹42.3 lakh instead of ₹24.0 lakh in the 10% case), and what you buy with the extra money is time.
This table shows the monthly SIP needed to reach common targets. It answers questions like "how much SIP for 1 crore" or "how much SIP for 50 lakh in 10 years".
| Goal | 5 years | 10 years | 15 years | 20 years | 25 years |
|---|---|---|---|---|---|
| ₹10 lakh | ₹12,123 | ₹4,304 | ₹1,982 | ₹1,001 | ₹527 |
| ₹25 lakh | ₹30,308 | ₹10,760 | ₹4,955 | ₹2,502 | ₹1,317 |
| ₹50 lakh | ₹60,616 | ₹21,520 | ₹9,909 | ₹5,004 | ₹2,635 |
| ₹1 crore | ₹1,21,232 | ₹43,041 | ₹19,819 | ₹10,009 | ₹5,270 |
Monthly SIP needed at 12% a year, with each instalment invested at the start of the month. For your own numbers, use the Find my SIP tab.
The other way round: what a fixed monthly SIP becomes. This is the table to check for questions like "₹5,000 SIP for 10 years" or "₹10,000 SIP for 20 years".
| Monthly SIP | 5 years | 10 years | 15 years | 20 years | 25 years |
|---|---|---|---|---|---|
| ₹1,000 a month | ₹82.5K | ₹2.32 L | ₹5.05 L | ₹9.99 L | ₹18.98 L |
| ₹5,000 a month | ₹4.12 L | ₹11.62 L | ₹25.23 L | ₹49.96 L | ₹94.88 L |
| ₹10,000 a month | ₹8.25 L | ₹23.23 L | ₹50.46 L | ₹99.91 L | ₹1.90 Cr |
| ₹25,000 a month | ₹20.62 L | ₹58.08 L | ₹1.26 Cr | ₹2.50 Cr | ₹4.74 Cr |
Estimated corpus at 12% a year. L is lakh and Cr is crore. Returns are not guaranteed.
This calculator starts at 12% a year. As of August 2026, the Nifty 100 and Nifty 500 total return indices had returned roughly 12 to 14% a year over 10, 15 and 20 year periods (FundsIndia research). Those are index returns before any fund costs, and they are averages: the Nifty 50 total return index has delivered anything from about 5% to 22% a year across rolling 10-year periods since 1999, and single years have ranged from a loss of more than 50% to a gain of more than 100%.
So 12% is a reasonable middle estimate for a diversified equity fund held for a long time, but it is a planning assumption, not a promise. A debt or hybrid fund will usually return less. The gap between rates is large over 20 years:
| Assumed return | Corpus after 20 years | Times your money |
|---|---|---|
| 8% a year | ₹59.29 L | 2.5x |
| 10% a year | ₹76.57 L | 3.2x |
| 12% a year | ₹99.91 L | 4.2x |
| 14% a year | ₹1.32 Cr | 5.5x |
₹10,000 a month for 20 years means ₹24 lakh invested. Use the return slider in Find my SIP to test your own goal the same way.
Take two investors who both plan to stop investing at 60, with 12% returns. Investor A starts at 25 with ₹5,000 a month and invests for 35 years, ending with about ₹3.25 crore. Investor B starts at 35, invests three times as much, ₹15,000 a month, for 25 years, and ends with about ₹2.85 crore. B put in ₹45 lakh against A's ₹21 lakh and still finishes behind. To catch up, B would need about ₹17,114 a month, more than three times A's SIP.
The same effect shows up when you have a fixed goal. For ₹1 crore in 20 years at 12%, starting today needs about ₹10,009 a month. Wait 5 years and the same goal needs about ₹19,819, nearly double. Wait 10 years and it needs about ₹43,041, more than four times as much. The Cost of Waiting table in Find my SIP shows this for delays of 6 to 36 months on your own numbers.
The simple version: time in the market does more than amount in the market once you pass a point. Starting small and early usually beats starting large and late.
They solve different problems. A SIP fits regular income: you invest as you earn, and your buying price averages out across market highs and lows. A lump sum is for money you already have.
If you do have the money, a lump sum invested on day one has more time to grow. ₹6 lakh invested at once at 12% for 10 years becomes about ₹19.80 lakh. The same ₹6 lakh invested as ₹5,000 a month becomes about ₹11.62 lakh, because most of that money spends far less than 10 years invested. That does not make the SIP a mistake, since few people have ₹6 lakh on day one and a lump sum takes on the market level of a single day. Investors who hold a lump sum often move it into equity in stages through a systematic transfer plan (STP).
Constant return. Real fund returns swing from year to year. The formula models a steady long-run average, not the ups and downs.
Expense ratio and exit load. A fund's NAV returns are already after its expense ratio, but an index return is not, so if your rate comes from an index, allow for the fund's expense ratio (usually lower for index funds and direct plans). Many equity funds also charge an exit load, often 1%, if you redeem within a year. Neither is deducted here, so many people use a rate 1 to 1.5 percentage points lower to be conservative.
Tax. For equity-oriented funds in FY 2026-27, gains on units held for more than 12 months are taxed at 12.5% on the amount above ₹1.25 lakh in a financial year, and gains on units sold within 12 months at 20%, plus surcharge and cess. Each SIP instalment counts as its own purchase, and units are sold first in, first out. As a rough illustration, ₹10,000 a month for 10 years grows to about ₹23.23 lakh, a gain of about ₹11.23 lakh. If all of it were sold in one financial year, the tax would be roughly ₹1.25 lakh before cess, about 5% of the corpus. Spreading redemptions across financial years makes use of the ₹1.25 lakh exemption each year. Tax rules change, so check the current rules before you redeem.
Inflation. A rupee amount in the future buys less than the same amount today. At 6% inflation, ₹1 crore in 20 years buys what about ₹31 lakh buys today (about ₹38 lakh at 5% and ₹26 lakh at 7%). So if you want the buying power of ₹1 crore in today's money, enter a target of about ₹3.21 crore in Find my SIP (at 6% inflation).
Quick answers to the questions people ask most about SIPs and this calculator.
A SIP (Systematic Investment Plan) lets you invest a fixed amount in a mutual fund at regular intervals, usually every month. The amount is debited from your bank account automatically and buys units at that day's NAV. Because you keep investing through ups and downs, you buy more units when prices are low and fewer when they are high, which is called rupee cost averaging. Over long periods, compounding does most of the work.
Use FV = P × [((1 + i)^n - 1) / i] × (1 + i), where P is the monthly SIP, i is the monthly return (annual return divided by 12 and by 100) and n is the number of months. For example, ₹5,000 a month for 10 years at 12% a year grows to about ₹11.62 lakh, of which ₹6 lakh is your own investment. This calculator does the sum for you and shows the growth year by year.
At 12% a year, you need about ₹43,041 a month for 10 years, ₹19,819 a month for 15 years, ₹10,009 a month for 20 years or ₹5,270 a month for 25 years. The longer you have, the smaller the SIP. Use the Find my SIP tab to enter your own target and timeline.
At 12% a year, ₹5,000 a month becomes about ₹11.62 lakh in 10 years and ₹49.96 lakh in 20 years. ₹10,000 a month becomes about ₹23.23 lakh in 10 years and ₹99.91 lakh in 20 years. These are estimates at a constant return, not guarantees.
A step-up SIP raises your monthly SIP by a fixed percentage every year, for example 10%. Enter the percentage in the "Increase SIP every year" field. The amount rises once a year, on each anniversary of your first instalment. In Calculate corpus you see the corpus with and without the yearly increase. In Find my SIP, the flat SIP is used as your starting amount and the calculator shows how much sooner you would reach the same target.
There is no single right number, and returns are never guaranteed. As of August 2026, the Nifty 100 and Nifty 500 total return indices had returned roughly 12 to 14% a year over 10, 15 and 20 year periods, and 12% is a common planning rate. Individual years vary widely, and a debt or hybrid fund usually returns less than an equity fund. Test your plan at a lower and a higher rate, for example 10% and 14%, using the slider in Find my SIP.
It is the extra monthly SIP you need if you start later but still want the same target by the same date. The Cost of Waiting table in Find my SIP shows this for delays of 6 to 36 months on your own numbers. Longer delays cost far more: for ₹1 crore in 20 years at 12%, starting today needs about ₹10,009 a month, starting 5 years later needs about ₹19,819, and starting 10 years later needs about ₹43,041.
Neither is better in every case. A SIP suits regular income: you invest as you earn and spread your entry across market levels. A lump sum invested on day one has more time to grow, so ₹6 lakh invested at once at 12% for 10 years becomes about ₹19.80 lakh, against about ₹11.62 lakh for ₹5,000 a month over the same 10 years, because SIP money goes in gradually. But you can only invest a lump sum you already have, and it takes on the market level of one single day. If you hold a lump sum, moving it into equity in stages through an STP is a common middle path.
No. It applies one constant return, before tax and exit load, and it does not adjust for inflation. A fund's own NAV returns are already after its expense ratio, but an index return is not, so if you base your rate on an index, allow for the fund's expense ratio. Many people simply use a rate 1 to 1.5 percentage points lower to build in costs and tax, and remember that a future rupee amount buys less than the same amount today.
For equity-oriented funds (at least 65% in Indian equities), the rules for FY 2026-27 are: gains on units held for more than 12 months are taxed at 12.5% on the amount above ₹1.25 lakh in a financial year, and gains on units sold within 12 months are taxed at 20%, plus surcharge and 4% cess. Each SIP instalment is a separate purchase with its own holding period, and units are sold on a first in, first out basis. Debt fund gains are taxed differently, at your slab rate for units bought on or after 1 April 2023. Tax rules change, so check the current rules or ask a tax professional before you redeem.
Small differences are normal. The usual reasons are whether the instalment is assumed to be invested at the start or the end of the month (about 1% apart at a 12% return), whether returns compound monthly or yearly, and rounding. This calculator assumes the start of the month and monthly compounding at your annual return divided by 12.
The minimum depends on the fund house and scheme, and many accept SIPs from ₹100 or ₹500 a month. You can usually increase, reduce, pause or stop a SIP by giving notice to the fund house or your platform, and the units you already own stay invested. Notice periods and pause options vary by scheme, so check the rules before you change it.
One missed instalment does not cancel the units you already hold, and the fund house usually charges no penalty, but your bank may charge a fee for a failed auto-debit. Most fund houses discontinue a monthly SIP after three consecutive failed instalments, and AMFI's reporting rules treat it as ceased at that point. Keep enough balance in your account on the debit date.
Stopping a SIP in a falling market means you stop buying units at lower prices, which is when averaging helps most. If a goal is only a few years away, it is reasonable to review how much equity risk you are taking, but that is a separate question from whether to stop. This calculator assumes you keep investing for the whole period.
Mutual fund investments are subject to market risks. Read all scheme related documents carefully. This calculator gives estimates for planning and learning. It does not predict returns and is not investment, tax or legal advice. More free tools are on the Finance calculators page.