SIP Calculator India — How to Build Long-Term Wealth with Mutual Funds
A Systematic Investment Plan (SIP) is one of the most effective ways for salaried Indians to build long-term wealth. By investing a fixed amount every month into mutual funds, you harness the twin powers of rupee cost averaging and compound interest — turning disciplined small investments into a significant corpus over time.
How SIP Returns Are Calculated
SIP returns are calculated using the compound interest formula applied month-by-month. Each monthly instalment earns returns from the date of investment, so earlier payments compound for longer. The formula for a flat SIP corpus is:
Corpus = P × [((1 + r)^n − 1) / r] × (1 + r)
Where P = monthly SIP, r = monthly rate (annual rate ÷ 12 ÷ 100), n = total months. Our calculator applies this formula year by year, adjusting for step-ups.
Why Step-Up SIP is a Game Changer
Most salaried employees receive 8–15% salary increments annually. A step-up SIP channels a portion of that increment directly into wealth creation. Consider this comparison:
| Strategy | Monthly SIP | Duration | Corpus @ 12% |
|---|---|---|---|
| Flat SIP | ₹10,000 | 20 years | ~₹98 lakh |
| 10% Step-Up SIP | ₹10,000 → growing | 20 years | ~₹1.99 crore |
| 15% Step-Up SIP | ₹10,000 → growing | 20 years | ~₹3.1 crore |
The step-up SIP at 10% generates over 2x the wealth of a flat SIP — with the same starting investment.
SIP Taxation: What You Need to Know
Mutual fund gains are taxable in India. The tax treatment depends on the fund type and holding period:
- Equity Funds (STCG, held <1 year): Taxed at flat 20%
- Equity Funds (LTCG, held >1 year): Gains above ₹1.25 lakh per year taxed at 12.5% — no indexation
- Debt Funds: Gains taxed at your income slab rate (no preferential treatment)
- ELSS Funds: 3-year lock-in; qualifies for Section 80C deduction (₹1.5L limit) under Old Regime only. Use our Tax Calculator to see the 80C benefit.
How Much SIP Do You Need to Reach ₹1 Crore?
At 12% CAGR (a reasonable long-term equity estimate), here's what it takes to reach ₹1 crore:
| Timeline | Monthly SIP Needed (flat) | With 10% Step-Up |
|---|---|---|
| 10 years | ~₹43,000/mo | ~₹28,000/mo |
| 15 years | ~₹20,000/mo | ~₹11,000/mo |
| 20 years | ~₹10,200/mo | ~₹5,000/mo |
| 25 years | ~₹5,300/mo | ~₹2,200/mo |
Time is your biggest advantage. Starting early — even with a small SIP — beats a larger SIP started late. Use the PPF Calculator to compare tax-free government-backed returns alongside your SIP projections.
Frequently Asked Questions
Common questions about SIP investing, returns, and taxation in India.
Large-cap index funds (Nifty 50, Sensex) have historically delivered 11–13% CAGR over 15+ year periods. Mid and small-cap funds have given 14–16% but with significantly higher volatility. Use 10–12% for conservative long-term planning. Remember: past performance does not guarantee future returns, and actual returns vary significantly year to year.
Step-up SIP (also called top-up SIP) means increasing your monthly investment amount each year by a fixed percentage — typically 10–15% in line with salary growth. This is powerful because compound returns now apply to a growing base. A ₹10,000 SIP at 10% step-up for 20 years at 12% CAGR builds ~₹2 crore vs ~₹98 lakh for a flat SIP — over 2x the wealth with the same starting amount.
Yes, SIP gains are taxable. For equity mutual funds: Short-term capital gains (units held less than 1 year) are taxed at 20%. Long-term capital gains (more than 1 year) above ₹1.25 lakh per year are taxed at 12.5% — no indexation benefit. For debt funds: All gains are taxed at your income slab rate. ELSS funds get an 80C deduction up to ₹1.5L per year under the Old Tax Regime only.
At 12% CAGR with a flat SIP: about ₹43,000/month for 10 years, ₹20,000/month for 15 years, or ₹10,200/month for 20 years. With a 10% annual step-up, these amounts drop to roughly ₹28,000, ₹11,000 and ₹5,000 respectively. Enter ₹1,00,00,000 in the "Goal Amount" field above to see your exact required SIP at your preferred timeline and return rate.
ELSS (Equity Linked Savings Scheme) is a mutual fund category with a mandatory 3-year lock-in per instalment. Investments up to ₹1.5 lakh per year qualify for Section 80C tax deduction under the Old Regime — saving up to ₹46,800 in tax per year. When you invest via SIP, each monthly instalment has its own independent 3-year lock-in starting from that instalment's date. ELSS is not available as a deduction under the New Tax Regime.