How to use the Step-Up SIP Calculator
- Enter the SIP amount you will start with.
- Enter the percentage by which you will raise it every year. Use 0 for a flat SIP.
- Enter the yearly return you expect and the number of years.
- Read the future value, the total invested and the value of an equivalent flat SIP, and check the year-by-year table.
Formula used
The SIP in year y is SIP × (1 + step-up)^(y − 1). Each month, balance = (balance + SIP) × (1 + yearly return ÷ 12), repeated for every month of the period.
Worked example
Here is the Step-Up SIP Calculator worked through with the example values shown above, so you can check each step by hand.
| Inputs | |
|---|---|
| Starting monthly SIP | ₹10,000 |
| Yearly step-up | 10 % |
| Expected return (per year) | 12 % |
| Time period | 10 years |
| Result | |
| Estimated future value | ₹33,74,326 |
| Total invested | ₹19,12,491 |
| Estimated returns | ₹14,61,835 |
| Value with a flat SIP (no step-up) | ₹23,23,391 |
Year-by-year growth
The monthly SIP rises once a year by the step-up percentage. The table shows the SIP amount in each year, the total invested so far and the value at the end of the year.
| Year | Monthly SIP | Invested so far | Value |
|---|---|---|---|
| 1 | ₹10,000 | ₹1,20,000 | ₹1,28,093 |
| 2 | ₹11,000 | ₹2,52,000 | ₹2,85,241 |
| 3 | ₹12,100 | ₹3,97,200 | ₹4,76,410 |
| 4 | ₹13,310 | ₹5,56,920 | ₹7,07,323 |
| 5 | ₹14,641 | ₹7,32,612 | ₹9,84,570 |
| 6 | ₹16,105 | ₹9,25,873 | ₹13,15,734 |
| 7 | ₹17,716 | ₹11,38,461 | ₹17,09,527 |
| 8 | ₹19,487 | ₹13,72,307 | ₹21,75,956 |
| 9 | ₹21,436 | ₹16,29,537 | ₹27,26,501 |
| 10 | ₹23,579 | ₹19,12,491 | ₹33,74,326 |
How the step-up works
With a starting SIP of ₹10,000 and a 10% yearly step-up, you invest ₹10,000 a month in year 1, ₹11,000 in year 2, ₹12,100 in year 3 and ₹23,579 in year 10. Each month’s investment compounds at the return you entered.
Over 10 years at 12%, the total invested is ₹19,12,491 and the estimated value is ₹33,74,326. A flat SIP of ₹10,000 would invest ₹12,00,000 and reach ₹23,23,391. The step-up adds ₹10,50,936 to the final corpus.
How much the step-up rate changes the result
For the same ₹10,000 SIP at 12% over 10 years, a 0% step-up gives ₹23,23,391, 5% gives ₹27,86,942, 10% gives ₹33,74,326 and 15% gives ₹41,18,727.
The effect grows with time. Over 20 years the gap between a flat SIP and a 10% step-up is much bigger, because the later, larger contributions still have many years to compound.
Choosing a realistic step-up
A step-up works best when it matches how fast your income rises. If your salary grows about 8% to 10% a year, a step-up of 5% to 10% is easy to sustain. A step-up higher than your income growth can become hard to keep up, and stopping a SIP midway defeats the purpose.
Some fund houses and platforms let you set an automatic yearly top-up when you start a SIP. If yours does not, you can raise the SIP manually every year on a date you remember, such as your appraisal month.
Limits of the calculation
The calculator assumes the same return every year, with the SIP invested at the start of each month. Real returns on market-linked funds go up and down, and a SIP can lose value in the short term. The result is before tax, expense ratios and exit loads.
Use the figures to compare plans, not as a forecast. If you have a goal with a fixed deadline, build in a margin of safety.
Frequently asked questions
What is a step-up SIP?
A SIP whose monthly amount rises every year by a fixed percentage or a fixed rupee amount. This calculator uses a percentage.
Is a step-up SIP better than a normal SIP?
For the same starting amount, it invests more over time and usually builds a larger corpus, provided you can afford the higher payments.
What step-up percentage should I choose?
Choose one close to your expected yearly income growth, so that the higher SIP stays affordable.
Are the returns guaranteed?
No. The calculator uses a constant return for illustration. Real returns vary and can be negative.
Does the step-up happen every month?
No. The SIP stays the same within a year and rises once at the start of each new year.
Can I step up by a fixed rupee amount?
This calculator uses a percentage. For a fixed rupee increase, you can approximate with a percentage close to the average increase.
This calculator gives estimates for information only. Actual figures from a bank, employer, tax authority or doctor may differ. It is not financial, tax, legal or medical advice.