Step-up SIP Calculator
Raise your instalment a little every year, in step with your salary. See how a rising SIP outgrows a flat one — in lakh and crore.
Your step-up SIP
Your instalment rises by this much at the start of each new year.
Instalments are assumed at the start of each month (annuity due), compounding monthly.
At maturity
Year-by-year ledger
Crore crossings in green| Year | Monthly instalment | Invested so far | Corpus | In crore |
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How a step-up SIP is calculated
A step-up (or top-up) SIP keeps the same schedule as an ordinary SIP but raises the instalment once a year. For month m, the year number is k = ⌈m/12⌉ and that month's instalment is P × (1+s)k−1, where P is the starting instalment and s the annual step-up rate. Each month the running corpus grows by the monthly return and then receives that instalment at the start of the month (annuity due), the convention used by most Indian platforms.
The effect compounds twice over: you invest more and the extra money has years to grow. At 12% p.a., a ₹10,000 SIP stepped up 10% a year for 15 years builds roughly ₹86.8 lakh against about ₹50.5 lakh for a flat ₹10,000 — the annual raises add close to ₹36 lakh without ever feeling like a big sacrifice.
Step-up SIP questions
What is a step-up or top-up SIP?
It is an ordinary SIP that automatically increases your monthly instalment by a set percentage every year — commonly 5% to 10%, matching expected salary growth. Most fund houses and platforms offer it as a "step-up" or "top-up" option so you never have to remember to raise the amount yourself.
How much difference does a 10% step-up make over 15 years?
A lot. At 12% p.a., a flat ₹10,000 monthly SIP grows to about ₹50.5 lakh in 15 years. Stepping the same ₹10,000 up by 10% each year builds roughly ₹86.8 lakh — about ₹36 lakh more — because you contribute more over time (around ₹38 lakh instead of ₹18 lakh) and the extra instalments still get years to compound.
Does salary growth justify stepping up?
If your income rises each year, a step-up keeps your saving rate roughly constant instead of letting the flat instalment shrink in real terms. Setting the step-up near your typical annual raise means the higher SIP is funded by new income, not by squeezing your existing budget. Choose a percentage you can sustain in lean years — this is education, not advice.