Step-up SIP Calculator
See how raising your SIP a little every year changes the outcome. Set your starting amount and annual increase to compare against a flat SIP.
About ₹12,97,000 in today's money at 6% inflation.
| Year | Invested in year | Total invested | Value at year end |
|---|
What a step-up SIP is
A step-up SIP raises your monthly investment by a fixed percentage every year, automatically. Start at ₹10,000 with a 10% step-up, and next year it becomes ₹11,000, then ₹12,100, and so on.
Fund houses call it different things — top-up SIP, SIP booster, step-up facility. Same mechanism. You set it once when you start the SIP and it runs by itself.
The logic is simple: your income goes up most years, so your investment probably should too. A SIP you set at 25 and never touched is quietly shrinking as a share of your salary every year.
What the step-up actually does to your corpus
Starting at ₹10,000 a month, 12% expected return:
| Annual step-up | 10 years | 15 years | 20 years | 25 years |
|---|---|---|---|---|
| None (flat SIP) | ₹23.2 lakh | ₹50.5 lakh | ₹99.9 lakh | ₹1.90 crore |
| 5% | ₹27.9 lakh | ₹65.3 lakh | ₹1.37 crore | ₹2.73 crore |
| 10% | ₹33.7 lakh | ₹86.8 lakh | ₹1.99 crore | ₹4.28 crore |
| 15% | ₹41.2 lakh | ₹1.18 crore | ₹3.03 crore | ₹7.26 crore |
Over 20 years, a 10% step-up doubles the outcome. Over 25 years it more than doubles it.
Worth being clear about why: you’re also investing far more money. The flat SIP puts in ₹24 lakh over 20 years; the 10% step-up puts in ₹68.7 lakh. It isn’t free money. What it is, is a way of investing more without ever having to make a decision about it — and without feeling the pinch, because each increase is small relative to that year’s salary rise.
Why this beats “I’ll increase it later”
Almost everyone intends to raise their SIP after a promotion. Very few actually do, because it requires logging in, remembering the amount, and consciously choosing to have less spending money.
A step-up removes that decision entirely. The increase lands in the same month as your appraisal and you never see the money in your account, so there’s nothing to give up.
If your salary rises 8-10% a year and your SIP rises 10%, your investment stays roughly constant as a share of income. If your SIP never rises, you’re effectively investing less every single year in real terms.
What step-up percentage to choose
10% suits most salaried people. It roughly tracks typical increments and the yearly jump is small enough not to hurt.
5% if your income is irregular, you’re early in your career, or you’re already investing close to your limit.
15% or more only if you expect steep income growth and have genuine room. Run the numbers before committing: at 15%, a ₹10,000 SIP becomes about ₹40,000 a month by year ten and over ₹1,60,000 by year twenty. That’s a real commitment, not a rounding error.
Some platforms let you set a fixed rupee increase instead — ₹1,000 more each year rather than a percentage. Easier to predict, but it shrinks in relative terms over time.
How to set one up
You choose the step-up when you start the SIP. Look for a field labelled “Top-up”, “Step-up” or “Annual increase” in the SIP registration form, and set the percentage plus optionally a cap.
One practical catch: your bank mandate has an upper limit. If you register a mandate for ₹10,000 and your SIP steps up to ₹11,000, the debit fails. Set the mandate limit well above your starting amount — most people set it at three to five times — so the increases have room to run. This is the single most common reason step-up SIPs break.
If you already have a running SIP without a step-up, most platforms don’t let you add one to it. You usually have to stop the existing SIP and register a fresh one. The existing units stay invested and untouched.
Frequently asked questions
Is a step-up SIP better than a regular SIP?
It builds a bigger corpus, because you invest more. Whether it’s better for you depends on whether the rising amount stays affordable. A step-up you have to cancel in year four is worse than a flat SIP you keep for twenty.
Can I cancel or change the step-up later?
You can stop the SIP at any time without penalty. Changing the step-up percentage on a running SIP usually isn’t possible — you’d stop it and start a new one. No penalty for that either.
What if my salary doesn’t increase that year?
The step-up still happens. If the amount becomes unaffordable, stop the SIP and register a new one at a level you can manage. Nothing is lost.
Does the step-up happen every 12 months?
Yes, on the SIP’s anniversary. Some platforms offer a half-yearly option. This calculator assumes an annual increase.
Is it taxed differently?
No. Each instalment is a separate purchase with its own holding period, exactly as with a regular SIP, and redemptions follow FIFO.
Mutual fund investments are subject to market risk. The figures shown are illustrative estimates based on the return rate you enter, not guaranteed outcomes. This is general information, not investment advice.