What is a step-up SIP?
A step-up SIP is a systematic investment plan whose monthly amount increases on a schedule — usually once a year, by a percentage you choose. Fund platforms also call it a top-up SIP or an increasing SIP. The fund itself is the same; only the cash you send each month changes.
The idea in one sentence
You start at a SIP you can afford today, then let the instalment rise as income rises, so savings keep pace with salary instead of staying frozen at your first job’s number.
Example: ₹8,000 a month with a 10% annual step-up becomes ₹8,800 in year two and ₹9,680 in year three. The units you already bought stay invested. You are not restarting the SIP.
How the annual step-up is applied
Most apps apply the increase after every 12 instalments, or on an anniversary date you pick. The StepSip calculator follows the same rhythm: twelve monthly contributions at the current amount, then multiply by 1 + step-up% for the next year.
- Step-up is on the instalment, not on the NAV and not on last year’s corpus.
- A 10% step-up is 10% of the monthly SIP, once a year — not 10% every month.
- You can usually pause, edit, or cancel the top-up in the same app that runs the SIP.
How this differs from raising SIP yourself
You can always start a second SIP or edit the mandate when you get a hike. An automatic step-up just removes the “I’ll do it next month” leak. It is a behaviour tool, not a higher return product. If you already increase SIPs after every increment, you may not need the feature — but the step up SIP calculator still helps you test a path before you lock a mandate.
Who a step-up SIP tends to suit
- Salaried investors who expect some increment most years and have no large EMI cliff.
- People early in a career whose first SIP is small on purpose.
- Anyone who wants savings to track inflation instead of sitting at a 2019 number.
It fits poorly if income is lumpy (commissions, seasonal work), if you are about to take a home loan, or if the step-up would crowd out an emergency fund. In those cases a regular SIP you never skip is the more honest plan. Readstep-up versus regular SIP.
What the calculator does not decide
Step-up does not pick the fund, the asset allocation, or the tax wrapper. Equity, hybrid, and debt SIPs can all be stepped up. Tax treatment follows the scheme category and your holding period, and those rules change. The calculator also ignores expense ratio and exit load — both of which reduce what you actually receive.
For a rupee walkthrough, see the worked example. For traps, see common mistakes.
StepSip is a calculator, not an adviser. Projections assume a constant return, which markets do not deliver. Confirm tax rules and product documents before you invest. See thefull disclaimer.