What happens if you raise your SIP every year?
Most SIP calculators assume you invest the same amount for twenty years. Almost nobody does — your income rises, so your SIP should too. This is what that difference is actually worth.
₹10,000 a month at 12% for 15 years, flat versus a 10% annual step-up
| Flat SIP | With 10% annual step-up | |
|---|---|---|
| Starting monthly amount | ₹10,000 | ₹10,000 |
| Monthly amount in year 15 | ₹10,000 | ₹37,975 |
| Total invested | ₹18,00,000 | ₹38,12,698 |
| Maturity value | ₹50,45,760 | ₹86,83,849 |
| Difference | — | +₹36,38,089 (72% more) |
Same starting amount, same return, same fifteen years. The only change is a 10% annual increase, which for most people is smaller than their actual raise.
What a step-up SIP is
A step-up SIP (sometimes called a top-up SIP) increases your contribution by a fixed percentage on a fixed schedule, usually once a year. You start at what you can afford today and the amount rises automatically, so the decision is made once instead of every year.
Most fund houses support this directly as a top-up instruction on the mandate. If yours does not, the same thing can be done by increasing the SIP amount manually each year, which works equally well and gets skipped far more often.
Why the gap is so large
Two effects stack. You contribute more in total, and the extra contributions arrive early enough to compound. A rupee added in year four has eleven years to grow; the same rupee added in year fourteen has one.
That is why a step-up beats simply investing a larger lump sum later. The schedule is doing the work, not the amount.
What step-up percentage to choose
Anchor it to your expected salary growth, not to what makes the projection look exciting. If your income rises around 8–10% a year, a 10% step-up keeps your savings rate flat — you are not saving a larger share, you are refusing to let lifestyle absorb the whole raise.
A step-up above your income growth genuinely increases your savings rate over time, and is worth choosing deliberately rather than by accident. Above about 15% the plan tends to become unaffordable before the projection ends, and an abandoned SIP beats no SIP but loses to a smaller one you keep.
Check it in real terms
A maturity value fifteen years out is in rupees that will buy less than today's. Turn on the inflation adjustment to see the figure in today's money — it is a less pleasant number and a far more useful one for deciding whether a goal is actually funded.
A step-up helps here too, because rising contributions partly track the same inflation that is eroding the target.
Frequently asked questions
If you can genuinely afford the bigger amount today, starting high wins, because every rupee gets maximum time to compound. A step-up is for the far more common situation where you cannot afford it yet but expect to.
Match it to your expected salary growth as a baseline, commonly 8–10%. Going higher raises your savings rate over time; going much above 15% often makes the later instalments unaffordable.
Yes. A top-up instruction can be modified or cancelled like any SIP mandate, and pausing does not forfeit what you have already accumulated. Check the specific terms with your fund house.
Yearly is the normal arrangement and the one most mandates support. This calculator lets you choose monthly, quarterly or yearly so you can compare them.
Nobody can tell you that. 12% is a commonly used planning assumption for Indian equity over long periods, not a promise. Run the same numbers at 9% and 10% before committing to a goal that depends on the higher figure.
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