Step-Up SIP Calculator

Using the calculator above takes less than a minute. Here are the four inputs you need:

Step 1: Enter your monthly SIP

This is the amount you plan to invest each month at the start. For example, if you want to begin with ₹10,000 per month, enter 10000.

Step 2: Enter your investment period

How long do you plan to stay invested? Enter the number of years. Common choices are 10, 15, 20, or 25 years, depending on your financial goals.

Step 3: Enter your expected return

This is the annual return rate you expect from your mutual fund investment. For example, 12% is a commonly used assumption, but actual returns depend on market performance and the fund you choose. The calculator uses this rate to estimate your returns — it does not guarantee them.

Step 4: Enter your annual step-up

This is the percentage by which you increase your SIP every year. For example, with a 10% step-up on a ₹10,000 SIP:

• Year 1: ₹10,000
• Year 2: ₹11,000
• Year 3: ₹12,100
• Year 4: ₹13,310

Once you hit Calculate, the calculator shows your total amount invested, estimated returns, estimated maturity value, a growth chart, and a year-by-year breakdown table. You can also download the results as an Excel spreadsheet.

Here is a worked example to show how the calculation works in practice.

Inputs:

• Starting monthly SIP: ₹10,000
• Investment period: 20 years
• Expected annual return: 12%
• Annual step-up: 10%

With a 10% annual step-up, your monthly SIP increases like this:

By year 20, your monthly SIP has grown from ₹10,000 to over ₹61,000. The total amount invested over 20 years is approximately ₹68.73 lakhs. But because each contribution is compounded monthly — and later contributions are larger — the estimated maturity value is around ₹1.86 crores.

This is why increasing your SIP over time can make a meaningful difference. The earlier contributions have the longest time to compound, and the later (larger) contributions still get enough years to grow significantly.

Try your own numbers using the calculator above.

A Top-Up SIP, also commonly called a Step-Up SIP, allows you to increase your SIP investment periodically instead of keeping the monthly contribution fixed.

For example, if you start with ₹10,000 per month and choose a 10% annual increase:

• Year 1 → ₹10,000
• Year 2 → ₹11,000
• Year 3 → ₹12,100
• Year 4 → ₹13,310

The terminology can vary between investment platforms. Some call it a "top-up SIP," others call it a "step-up SIP," and a few use "annual increase SIP." All three terms describe the same basic idea: your monthly contribution goes up at regular intervals, usually once a year.

Use the calculator above to see how different top-up or step-up percentages affect your projected returns.

A Step-Up SIP differs from a regular SIP because the monthly contribution increases at the start of each year. The increase follows a simple formula:

New SIP = Previous SIP × (1 + Step-Up Rate)

For example, with a ₹10,000 starting SIP and a 10% annual step-up:

• ₹10,000 × (1 + 10%) = ₹11,000
• ₹11,000 × (1 + 10%) = ₹12,100
• ₹12,100 × (1 + 10%) = ₹13,310

Once the SIP amount for a given year is determined, the future value calculation compounds each monthly contribution at the expected annual return rate (converted to a monthly rate). Each monthly installment is treated as an annuity due — invested at the beginning of the month — and compounded from the date of investment until the end of the tenure.

The total maturity value is the sum of all compounded monthly contributions at the end of the investment period. Our Step-Up SIP Formula page explains the complete calculation with a manual worked example.

The main difference between a regular SIP and a step-up SIP is whether your monthly investment stays the same or increases over time.

With a 10% annual step-up, the estimated maturity value is roughly double that of a regular SIP over 20 years. This happens because you invest more overall — ₹68.73 lakhs versus ₹24 lakhs — and those larger contributions in later years still benefit from compounding.

A step-up SIP requires progressively larger monthly contributions, so the right approach depends on your expected income growth and financial commitments. A regular SIP may be more suitable if your income is unlikely to increase at a steady rate.

Use our Step-Up vs Regular SIP Calculator to compare both strategies side by side with your own numbers.

There is no single percentage that works for everyone. The right step-up rate depends on several personal factors:

• Income growth — If your salary or business income is likely to grow steadily, you may be able to sustain a higher step-up.
• Expenses — Rising family or lifestyle costs may limit how much you can increase your SIP each year.
• Financial goals — The target corpus and timeline influence how aggressively you need to step up.
• Investment horizon — Longer horizons allow smaller step-ups to compound into larger amounts.
• Existing commitments — If you already have significant monthly outflows, a modest step-up may be more practical.

A 5%, 10%, or 15% annual increase are useful scenarios to model in the calculator. Use them to see what your projected corpus would look like at each rate, and then decide what fits your situation.

Our Best Step-Up Percentage Guide breaks this down further with recommendations based on different income growth scenarios.

This table shows how a ₹10,000 monthly SIP grows at different step-up rates over time:

At 5%, a ₹10,000 SIP becomes ₹15,513 after 10 years. At 10%, it reaches ₹23,579. At 15%, it grows to ₹35,179. These are the monthly SIP amounts — the actual investment and returns depend on the compounding calculation, which the calculator above handles for you.

When planning long-term investments, it is worth considering that inflation reduces the purchasing power of money over time. A corpus of ₹1 crore 20 years from now may not buy the same things that ₹1 crore can buy today.

A Step-Up SIP helps offset this to some extent because your contributions grow over time, keeping pace at least partially with rising costs. However, the maturity value shown by any calculator is a nominal figure — it does not adjust for inflation.

If you want to see what your investment would be worth in today's terms, use our Inflation-Adjusted SIP Calculator, which factors in an assumed inflation rate alongside your expected returns.

Want to save your calculations or compare different scenarios offline? Use the Download Excel button above the year-by-year table to get a spreadsheet with your results.

The downloaded file includes a summary sheet with your inputs and results, plus a year-by-year breakdown showing total invested and portfolio value for each year. You can use it to:

• Save and share your calculations with a financial advisor
• Compare different SIP amounts, step-up rates, or return assumptions
• Experiment with various investment periods

If you prefer a ready-made spreadsheet with pre-built formulas, download our Free SIP Calculator Excel Template.

A Step-Up SIP (Systematic Investment Plan) is a mutual fund investment strategy where you start with a fixed monthly amount and increase it by a set percentage at regular intervals — usually once a year.

For example, if you start with ₹10,000 per month and choose a 10% annual step-up, your contribution becomes ₹11,000 in year two, ₹12,100 in year three, and so on. This gradual increase is designed to align with typical income growth, so your investments scale up as your earning capacity increases.

Over long periods, this approach can result in a significantly larger corpus compared to a flat SIP, because the increased contributions in later years also benefit from compounding. Use the calculator above to model this with your own numbers.