Step-Up SIP Calculator
Step-up (top-up) SIP returns with a yearly % or ₹ increase vs a flat SIP
| Year | Monthly SIP | Invested so far | Step-up value | Flat SIP value |
|---|---|---|---|---|
| 1 | ₹10,000 | ₹1,20,000 | ₹1,28,093 | ₹1,28,093 |
| 2 | ₹11,000 | ₹2,52,000 | ₹2,85,241 | ₹2,72,432 |
| 3 | ₹12,100 | ₹3,97,200 | ₹4,76,410 | ₹4,35,076 |
| 4 | ₹13,310 | ₹5,56,920 | ₹7,07,323 | ₹6,18,348 |
| 5 | ₹14,641 | ₹7,32,612 | ₹9,84,570 | ₹8,24,864 |
| 6 | ₹16,105 | ₹9,25,873 | ₹13,15,734 | ₹10,57,570 |
| 7 | ₹17,716 | ₹11,38,461 | ₹17,09,527 | ₹13,19,790 |
| 8 | ₹19,487 | ₹13,72,307 | ₹21,75,956 | ₹16,15,266 |
| 9 | ₹21,436 | ₹16,29,537 | ₹27,26,501 | ₹19,48,215 |
| 10 | ₹23,579 | ₹19,12,491 | ₹33,74,326 | ₹23,23,391 |
How to Use
- Enter your Starting monthly SIP.
- Choose how it grows: A percentage (e.g. 10% a year) or A fixed amount (e.g. ₹1,000 more each year), and enter the step-up.
- Set the Expected return and the Investment period in years.
- Results update instantly: the step-up SIP's value, total invested, and how much more it builds than a flat SIP of the same starting amount.
- Use the chart and the year-wise table to see your monthly SIP and both values each year.
What is a step-up SIP?
A step-up SIP (also called a top-up SIP) is a Systematic Investment Plan whose monthly amount increases automatically once a year — either by a percentage or by a fixed rupee amount. Most mutual fund houses and investment apps let you set this up when you start the SIP. The idea is simple: your income usually rises every year, so your investments should too. Even a modest yearly increase makes a large difference over 15–20 years, because the extra money also compounds.
How it is calculated
We use exactly the same monthly compounding as our SIP calculator: the monthly rate is the annual return ÷ 12, and each instalment is invested at the start of the month. Each year's 12 instalments are valued like a one-year SIP, and then grow for the remaining years.
SIP in year y (y = 0, 1, 2…): P × (1 + s)y or P + A × y
Value of one year's SIP at year-end = SIP × [(1 + r)12 − 1] × (1 + r) ÷ r
Final value = Σ year-end value × (1 + r)12 × (years left)
With a 0% step-up, the result is identical to a regular SIP — the calculator shows that flat SIP alongside for comparison.
Worked example
You start a SIP of ₹10,000 a month, expect 12% a year, and invest for 15 years. A flat SIP grows to about ₹50.46 lakh on ₹18 lakh invested. If you raise the SIP by 10% every year, it reaches ₹37,975 a month in the 15th year, you invest ₹38.13 lakh in total, and the corpus grows to about ₹86.84 lakh.
| Yearly step-up | Total invested | Value after 15 years (12%) |
|---|---|---|
| 0% (flat SIP) | ₹18,00,000 | ₹50,45,760 |
| 5% | ₹25,89,428 | ₹65,30,752 |
| 10% | ₹38,12,698 | ₹86,83,849 |
| 15% | ₹57,09,649 | ₹1,18,35,225 |
Starting with ₹10,000 a month in every row, the step-up alone takes the corpus from about ₹50 lakh to well over ₹1 crore.
Percentage or fixed amount?
- Percentage step-up keeps pace with salary growth, and the increases themselves grow over time. Matching it to your expected yearly raise (say 5–10%) is a common approach.
- Fixed-amount step-up (for example, ₹1,000 more every year) is gentler and more predictable. Its effect is smaller in later years, because the increase stays the same while the SIP gets bigger.
Tips
- Set the step-up when you start the SIP so it happens automatically — it is easier than remembering to increase it yourself.
- Some fund houses cap the step-up amount or percentage, or offer only certain options (yearly or half-yearly). Check what your platform allows.
- Choose a step-up you can sustain. If income falls, you can usually pause or reduce the SIP.
- The returns here are assumptions. Equity fund returns vary from year to year and are not guaranteed; use a conservative rate for planning.