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A flat SIP assumes your income never changes. This one raises the instalment every year, the way your salary actually moves.
The short version
Start at ₹10,000 a month, raise it 10% each year, and over 15 years at an assumed 12% return you reach about ₹86,84,672. A flat ₹10,000 SIP over the same period reaches ₹50,45,760.
Here’s the framing that matters: to reach that same ₹86.8 lakh with a flat SIP, you’d need to commit ₹17,212 every month from day one. The step-up version lets you start at ₹10,000 — and by the final year you’re paying ₹37,975, which by then is a smaller share of your income than ₹10,000 was at the start.
Corpus at maturity
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Instalment rises once every twelve months. Returns compounded monthly. A projection based on a constant assumed rate, not a forecast.
Why a flat SIP quietly shrinks
If you set a ₹10,000 SIP today and never touch it, you haven’t held your investment rate steady — you’ve let it decline. Against income growth of even 8% a year, that ₹10,000 is roughly half the share of your salary after nine years and a third after fifteen. The number on the mandate stayed still; the commitment behind it fell away.
A step-up simply holds the commitment constant instead of the rupee amount. If your income rises 10% and your SIP rises 10%, nothing about your monthly life changes — and the corpus at the end is transformed.
Be honest about what’s driving the gain
Part of the difference is compounding, but most of it is simply that you invested more money. In the default example you contribute about ₹38.1 lakh across fifteen years against ₹18 lakh for the flat SIP. That’s not a trick the calculator is playing — it’s the point. The step-up isn’t free money, it’s a mechanism for making a rising contribution painless enough that you actually do it.
The genuine insight is the entry price. Both routes end at ₹86.8 lakh; one demands ₹17,212 a month from someone who may not have it yet, and the other asks for ₹10,000 today. Most people who fail to invest enough fail at the starting line, not the finish.
Practical notes
- Most platforms support this natively. Look for “step-up SIP” or “top-up SIP” when setting up the mandate — you set the percentage once and it applies automatically.
- Match the step-up to realistic income growth, not to what you’d like the final number to be. Setting 20% and abandoning it in year four is worse than setting 8% and keeping it.
- Check your bank mandate ceiling. The auto-debit limit is fixed at setup, and a step-up will eventually breach it. That’s the most common reason these quietly fail.
- The same caveats apply as any SIP — returns aren’t smooth, the corpus is pre-tax, and the expense ratio comes out of the figure shown.
Common questions
What step-up percentage should I pick?
Whatever your income realistically grows by — for most salaried people somewhere between 7% and 12%. The one you’ll still be paying in year twelve beats the ambitious one you cancel in year three.
Can I pause the increase in a bad year?
Yes. A SIP is a standing instruction, so you can hold the amount flat for a year and resume stepping up later. It costs you something at the end, but far less than stopping altogether.
स्टेप-अप SIP किसके लिए सही है?
उनके लिए जिनकी आय हर साल बढ़ रही है — यानी ज़्यादातर नौकरीपेशा लोगों के लिए। अगर आपकी आय स्थिर है या अनियमित है, तो एक तय रकम की SIP ज़्यादा व्यावहारिक रहेगी, क्योंकि हर साल बढ़ती किस्त को निभा पाना मुश्किल हो सकता है।
Educational content only — not investment advice. Mutual fund investments are subject to market risk. Projections assume a constant rate of return, which markets do not provide.
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