What is a step-Up SIP Calculator?
A step-up (or "top-up") SIP raises your monthly instalment by a fixed percentage each year, usually timed to a salary increment. Because the extra instalments start compounding earlier than a lumpsum top-up would, even a modest annual step-up meaningfully shortens the time needed to reach a goal compared to a flat SIP at the same starting amount.
This calculator simulates your SIP month by month, increasing the instalment at the start of each new year, so the year-wise table below reflects exactly how much you invested and how much it grew to.
How step-up compounding works
Unlike a level SIP, there is no single closed-form formula once the instalment itself changes every year — so this calculator runs an actual month-by-month simulation: each year’s instalment is P grown by your step-up percentage, and the running balance compounds at your expected monthly rate.
Compare this against the plain SIP Calculator with the same starting amount and rate — the gap between the two is purely the effect of stepping up.
Frequently asked questions
What step-up percentage is realistic?
Many investors tie it to their expected annual salary hike — commonly 5–10%. Even a 10% step-up on a 10-year SIP typically raises the maturity value by 40–60% over a flat SIP of the same starting amount.
Does the step-up apply mid-year or once a year?
This calculator increases the instalment once a year, at the start of each new 12-month block — the common convention for step-up SIPs offered by fund houses.
Can the step-up percentage be zero?
Yes — set it to 0% and this behaves exactly like a regular level SIP calculator.