SIP Calculator - Calculate Mutual Fund Returns with Step-up

SIP maturity uses the future value of an annuity: FV = P × [((1 + r)^n − 1) / r] × (1 + r). P is the monthly SIP amount, r is the monthly return (annual ÷ 12), and n is total months. Example: ₹5,000 a month for 15 years at 12% annual returns. r = 0.01, n = 180. FV works out to about ₹25.22 lakh. You've invested ₹9 lakh and the rest — over ₹16 lakh — is compounding. SIPs work best when you don't stop them during market dips. That's when more units are bought cheap.

For equity mutual fund SIPs, 11-13% annual return is a reasonable long-term assumption based on historical Indian market data. Don't use 15% or 18% — that's optimism, not planning. For hybrid funds, use 9-11%. For debt funds, 6-8%. Always plan with conservative numbers; if returns turn out higher, that's a bonus. If you're investing for 10+ years and only in equity, 12% is a sensible middle figure. Run the calculator at 10%, 12%, and 14% and see the range. Planning for the lower end protects you from disappointment if markets underperform.

A step-up SIP increases your monthly investment by a fixed percentage every year — usually 5-10%. The compounding effect is dramatic. A flat ₹10,000 SIP for 20 years at 12% gives about ₹99.9 lakh. The same SIP starting at ₹10,000 with a 10% annual step-up grows to roughly ₹1.83 crore — almost double. The logic is simple: as your salary grows, your investment should too. Most platforms let you automate this. Even a 5% step-up makes a noticeable difference. The calculator shows the exact corpus for any step-up rate you choose.

At 12% returns, a monthly SIP of around ₹10,000 for 20 years lands you close to ₹1 crore. For 15 years, you'd need about ₹20,000 a month. For 25 years, just ₹5,300 monthly. Time does most of the heavy lifting — that's why starting early matters more than investing huge amounts. If you can do a step-up SIP, the required amount drops further. Run your goal year and expected return through the calculator to find the exact SIP. Inflation will reduce ₹1 crore's real value, so consider targeting ₹1.5-2 crore for a true 1 crore equivalent.

A SIP spreads investment across months, smoothing out market volatility through rupee cost averaging. A lump sum invests everything at once. If you have a ₹6 lakh windfall and equity markets are at peak, a SIP-style spread over 6-12 months reduces timing risk. If markets are clearly low and you have conviction, lump sum tends to outperform mathematically — but timing the market is hard. For most working professionals, monthly SIP from salary is the practical default. Lump sums work well in debt funds, where market timing matters less. Use the calculator to compare both approaches.

Inflation quietly eats into your goal target. ₹1 crore today won't buy what ₹1 crore buys in 20 years. At 6% inflation, you'd need around ₹3.2 crore in 20 years to match today's ₹1 crore in purchasing power. So when planning a goal, inflate the target before working backwards to the SIP amount. A child's ₹25 lakh education in today's money becomes about ₹80 lakh in 20 years. Always plan with the future value, not today's cost. The calculator has an inflation-adjusted mode for this.

Yes, you can pause or stop a SIP, and the calculator can still project returns based on what you've already invested. Pausing is better than stopping — most AMCs allow a pause of 1-3 months without cancelling the SIP. If you stop, your invested corpus continues to grow till you redeem it. The opportunity cost is the future SIPs you didn't make. A 12-month pause on a ₹10,000 SIP at 12% over 20 years can cost you about ₹3-4 lakh in final corpus. Avoid pausing during market dips — that's exactly when SIPs do their best work.