Guide
A flat SIP ignores the most reliable fact about your finances: your income will probably grow.
A traditional SIP assumes you invest the same amount for decades. But your salary rises over a career, which means a fixed SIP shrinks as a share of your income every year — you're effectively saving less and less in real terms.
A step-up SIP fixes this by raising your contribution at a set rate, usually annually, ideally in line with your income growth.
Because the extra contributions go in early enough to compound for years, a 10% annual step-up can produce a substantially larger corpus than a flat SIP — often the difference between comfortably hitting a goal and falling short.
Try it in the SIP calculator: set a flat SIP, note the corpus, then add a 10% step-up and watch the final figure jump while your starting amount stays the same.
A sensible default is to match your expected annual increment — if you expect roughly 10% raises, a 10% step-up keeps your savings rate constant.
Be realistic: a step-up you can't sustain leads to stopped SIPs, which is worse than a modest steady one. The best step-up rate is the highest one you'll actually maintain.
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