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GlossaryMutual funds

Step-up SIP

An SIP whose instalment rises at set intervals — usually yearly, by a fixed amount or percentage — so investing keeps pace with income.

A step-up SIP, also called a top-up SIP, raises your instalment automatically at regular intervals — for example by 10% or by ₹1,000 every year. You set the rule once and, where the facility is offered, the fund house applies it on schedule.

Why it matters

Most people’s incomes rise over a career, but a flat SIP stays where it started. Over a decade, a fixed ₹10,000 SIP becomes a smaller and smaller share of income. Stepping up keeps your savings rate steady or rising, and because each increase compounds, the effect on the final corpus can be substantial.

How to read it

  • Percentage vs fixed amount. A 10% annual step-up grows the instalment faster each year; a fixed ₹1,000 increase grows it in a straight line.
  • Affordability. Step-ups should track realistic income growth. An ambitious step-up you later cancel helps less than a modest one you keep.
  • Total invested rises too. Compare outcomes on the amount invested, or as a share of income — not just on the final value.

Common misconceptions

  • “A step-up SIP earns higher returns.” The return rate is the same as any SIP in that scheme. The corpus is larger because more money goes in.
  • “It can only be set at the start.” Many fund houses let you add a top-up later; terms vary.
  • “Stepping up is only for high earners.” Even small annual increases, matched to pay rises, change the outcome over long periods.

Note: The Step-Up SIP Calculator compares a flat SIP with a stepped-up one, side by side, using assumptions you control.

Formula

Instalment in year k = First-year instalment × (1 + Step-up rate)^(k − 1). Each year’s instalments are then compounded to the end date like an ordinary SIP.

Worked example

For illustration, assume a ₹10,000 monthly SIP for 20 years at a hypothetical 12% a year (1% a month). A flat SIP invests ₹24 lakh and could illustratively grow to about ₹99.9 lakh. With a 10% annual step-up, about ₹68.7 lakh is invested and the illustrative value is about ₹1.99 crore. Real returns will vary.

Figures are for illustration only — not a forecast or a recommendation.

Related terms

  • SIP

    Systematic Investment Plan

    A way to invest a fixed amount in a mutual fund at regular intervals, usually monthly, instead of investing everything at once.

  • Compounding

    Earning returns on past returns as well as on the original amount, so growth accelerates the longer money stays invested.

  • Savings rate

    The share of your income you save or invest each month — one of the strongest levers on how quickly you can reach your goals.

  • Rupee cost averaging

    Investing a fixed amount at regular intervals, so you buy more units when prices are low and fewer when they are high.

  • Lumpsum

    Investing a single, larger amount at one time, rather than spreading it across instalments.