Step-up SIP Calculator – Plan Increasing Investments
Use this free step-up SIP calculator to see how increasing your monthly investment by a fixed percentage each year can grow your corpus. Enter your starting contribution, annual step-up rate, expected return and tenure in years. The tool shows total investment, estimated gains and maturity value—so you can set goals and compare step-up SIP with a regular SIP without signing up or sharing any data.
Step-up SIP Calculator
Plan a step-up SIP where your monthly contribution increases by a fixed percentage each year, and estimate the future value of your investments at an assumed annual rate of return.
How the step-up SIP formula works
The calculator models a SIP where your monthly contribution grows once per year. For each month, the contribution is:
contribution = C × (1 + s)yearIndex, yearIndex = floor((m − 1) ÷ 12)
- C = starting monthly contribution
- s = annual step-up rate (decimal, e.g. 0.10 for 10%)
- m = month number from 1
Each contribution is then compounded at the monthly return rate until the end. Future value is the sum of all compounded contributions; total gain is future value minus total contribution.
Understanding step-up SIP and when it makes sense
A step-up SIP is a variation of a regular SIP where your monthly contribution does not stay fixed. Instead, it increases by a chosen percentage once every year—for example, 10%—so you invest more as time goes on. That suits people whose income is expected to rise: you start with an amount you can comfortably set aside today and scale up as you earn more. The calculator shows how that gradual increase, combined with compounding, can build a larger corpus than a flat SIP with the same starting amount.
The step-up SIP calculator does not invest your money; it illustrates what could happen if your contributions grew at the chosen rate and earned the assumed return each year. You enter the starting monthly amount, the annual step-up percentage, the expected annual return and the tenure in years. The tool then shows total contribution over the period, the estimated gain and the final maturity value. That helps you answer questions like: "If I start with ₹5,000 per month and step up by 10% every year for 15 years at 12% return, how much might I get?" or "How much extra corpus does a 10% step-up generate compared with a flat SIP?"
A useful exercise is to compare a step-up SIP with a regular SIP. Run both calculators with the same starting contribution, return rate and tenure. The step-up SIP will show a higher future value because you are putting in more in later years—and that extra capital still compounds until maturity. The flip side is that your monthly outflow rises over time. Make sure the projected contributions in years 10, 15 or 20 stay within your budget. A 15% annual step-up sounds impressive, but after 10 years your monthly amount could be several times the starting value. Use the calculator to see the actual numbers before committing.
Many investors choose a step-up rate close to their expected salary growth—for instance, 5–10% per year. That keeps the increase aligned with rising income and reduces the risk of overcommitting. You can also model conservative and optimistic scenarios: try 5%, 10% and 15% step-ups with the same return and tenure to see how the maturity value and total contribution change. The calculator runs in your browser and does not store your inputs, so you can experiment freely without any sign-up or data sharing.
Remember that the result is only a projection. Actual mutual fund returns vary with market conditions, fund strategy, expense ratios and taxes. The calculator assumes a constant return every year, which does not reflect volatility. Use the output as a planning aid, not a guarantee. Read the fund's offer document and, if needed, seek advice from a qualified financial adviser before investing.