How much monthly SIP you need to reach 1 crore at 12% returns over 20, 25, or 30 years, and why starting early cuts your monthly amount so sharply.
"Crorepati" used to mean genuinely rich. Today, thanks to inflation, 1 crore is more of a solid financial milestone than a life-changing fortune, but it is still a number most people would love to see in their portfolio. The good news is that reaching it through a monthly SIP (Systematic Investment Plan) in equity mutual funds is far more achievable than it sounds, provided you give it time. The bad news, or the honest part, is that "time" is the single biggest lever, and most people underestimate just how much difference a few extra years make.
Let's look at the actual numbers.
How much you need to invest each month
These figures assume a 12% annual return, which is a common long-term assumption for Indian equity mutual funds. It is not a guarantee, and we'll come back to that. All amounts are rounded to keep them readable.
To reach 1 crore:
- In 30 years: about 2,850 per month
- In 25 years: about 5,300 per month
- In 20 years: about 10,000 per month
- In 15 years: about 20,000 per month
- In 10 years: about 43,000 per month
Read that list again slowly, because it contains the whole point of this article. To hit the exact same 1 crore, the person with 30 years needs to set aside roughly 2,850 a month, while the person with 10 years needs about 43,000. That is a 15x difference in monthly effort for the identical goal. The only variable that changed was how early they started.
Why starting early matters so enormously
The reason isn't just that you have more months to invest. It's compounding, and specifically the fact that your returns start earning their own returns.
Consider the total money you actually contribute from your pocket:
- Over 30 years at 2,850/month, you invest about 10.3 lakh and the market turns it into 1 crore.
- Over 25 years at 5,300/month, you invest about 16 lakh.
- Over 20 years at 10,000/month, you invest about 24 lakh.
The 30-year investor becomes a crorepati by contributing only around 10 lakh of their own money. The rest, nearly 90 lakh, is growth. The 20-year investor has to put in more than double the actual cash. Time does the heavy lifting that your wallet would otherwise have to do.
This is why financial writers keep repeating the same slightly annoying advice: the best time to start a SIP was years ago, and the second-best time is this month. Even a modest amount started now will usually beat a much larger amount started five years later. If you're in your twenties, small numbers genuinely work. If you're in your forties, you can still absolutely get there, you'll just need bigger monthly commitments and a bit more patience.
Setting a goal that you'll actually stick to
A target you abandon in year three is worse than a smaller one you finish. So be realistic on two fronts.
First, pick a monthly amount you can sustain even in a bad month, not the maximum you can manage in a good one. A comfortable 4,000 SIP that runs for 25 years uninterrupted beats an ambitious 8,000 that you pause every time expenses spike.
Second, build in a step-up. Your income will likely rise over the years, and increasing your SIP by even 5-10% annually can dramatically shorten your timeline or push your final corpus well past 1 crore. Many investors start small deliberately, then raise the amount every time they get a hike. You can model different monthly amounts, timelines, and step-up scenarios with a goal-based SIP calculator to see what combination fits your income today. For more on SIP strategies, ELSS, and step-up SIP, explore the SIP & Mutual Funds Hub.
A practical way to frame it: decide the goal (1 crore), decide the deadline (say, retirement at a certain age), and let the math tell you the monthly number. If that number feels too high, extend the deadline rather than quitting. An extra five years often cuts the monthly requirement almost in half.
The step-up SIP: what a 10% annual increase actually does
Most people set a SIP amount and leave it unchanged for years. That works. But if you increase your SIP by 10% each year - roughly in line with a typical salary increment - the final corpus grows dramatically. Here is the same 25-year horizon at 12% annual returns, comparing a flat SIP to step-up options:
| Approach | Monthly start | Annual step-up | Final corpus |
|---|---|---|---|
| Flat SIP | Rs 5,300 | 0% | ~Rs 1 crore |
| Step-up SIP | Rs 3,000 | 10% | ~Rs 1 crore |
| Step-up SIP | Rs 5,300 | 10% | ~Rs 2.1 crore |
The same starting amount, stepped up 10% per year, produces more than double the corpus. Even a modest 5% annual step-up takes a flat Rs 5,300 SIP to roughly Rs 1.5 crore over 25 years. The maths is simple; the discipline to actually increase the amount on every salary revision is the harder part. A step-up SIP calculator will show your exact projected corpus for any step-up percentage you choose.
The most practical implementation: set a calendar reminder for every April (the start of the financial year) to increase your SIP by the same percentage as your salary hike that year. Even years where the hike is modest - 5 or 6% - compound into a significant difference over two decades.
If you are starting late: what is still realistic?
A 35-year-old with a 25-year horizon needs Rs 5,300 per month to reach Rs 1 crore at 12% - nearly identical to someone who started at 30. The window is not closed. At 40, the required amount rises to roughly Rs 10,000. Higher, but within reach for most mid-career earners who are now earning more than they were at 25.
Missed months matter less than most people fear. One skipped Rs 5,000 instalment in year 5 of a 25-year plan costs approximately Rs 1,500-2,000 in final corpus - the cost of a single missed month across 300 total instalments. The maths is forgiving on occasional lapses; it is unforgiving on permanent stops.
The practical rule: if cash flow tightens, cut the SIP in half rather than stopping entirely. A reduced but continuous SIP will almost always outperform a paused one waiting for the right moment to restart at the original amount. The biggest hidden cost of pausing is not the missed instalments themselves - it is that most investors who pause "temporarily" restart 18 to 24 months later, if they restart at all.
The honest part about market risk
That 12% assumption deserves a warning label. It is a long-term average, and averages hide a lot of turbulence. Equity markets do not go up in a smooth line. There will be years where your portfolio is flat or deep in the red, sometimes for uncomfortably long stretches. Some years may deliver 25% and others may deliver -15%. Nobody, including fund managers, can tell you the exact return you'll get.
What history suggests is that staying invested across full market cycles has rewarded patient investors, and that SIPs help here specifically because you keep buying during the scary cheap phases, which lowers your average cost. The danger is not market crashes themselves. The real danger is stopping your SIP during a crash, which is exactly when you're buying units at a discount.
So treat the numbers above as a reasonable planning estimate, not a promise. Your actual crore might arrive a couple of years early or a couple of years late depending on how the market behaves around your finish line. Keep an emergency fund separate so you're never forced to sell investments at a bad time, and don't invest money you'll need within the next three to five years in equity.
Tax when you finally withdraw: planning for LTCG
Equity mutual fund gains are subject to Long-Term Capital Gains (LTCG) tax at 12.5% on gains above Rs 1,25,000 per financial year, for units held over 12 months. Most crorepati guides stop before this point. It is worth understanding.
For a Rs 1 crore corpus built by investing Rs 16 lakh over 25 years (the scenario in the table above), roughly Rs 84 lakh is gain. Withdrawing everything in one financial year means approximately Rs 82.75 lakh is taxable at 12.5% - a bill of around Rs 10.3 lakh.
Three legal ways to manage this:
Spread withdrawals across financial years. You get Rs 1,25,000 of LTCG tax-free each year. Spreading redemptions over 5-7 years can save Rs 4-8 lakh in total tax.
Use a Systematic Withdrawal Plan (SWP). Instead of one large redemption, instruct your fund to pay out a fixed amount monthly - the reverse of a SIP. This delivers regular income and distributes the tax liability across years.
Annual gain harvesting before you retire. In the years leading up to your withdrawal, sell and immediately repurchase units worth up to Rs 1,25,000 in gains each year. This resets your cost basis on that portion, reducing the eventual LTCG when you finally exit.
The tax does not eliminate the SIP advantage - a large equity corpus even after tax is far ahead of an equivalent FD on a post-tax basis. But it is worth building the withdrawal strategy early rather than discovering it in the year you need the money.
The takeaway
Becoming a crorepati through SIP is not about being a stock-picking genius or earning a huge salary. It's mostly about starting early, choosing an amount you can maintain, and refusing to stop when the market gets ugly. The person who begins a small SIP in their twenties and simply doesn't interfere with it will very often end up ahead of the person who starts big but starts late. Time, consistency, and patience are the real strategy. This is educational information, not personalised financial advice, so consider your own situation or a SEBI-registered advisor before committing."