A SIP That Stopped Keeping Up
Nobody sat down and decided to invest less. The bank instruction from ten years ago simply never got revisited, while the number it was once a fifth of kept climbing on its own. Do the arithmetic and the SIP has quietly slipped from 20% of income to around 8%. Had it grown at the same pace as the salary, it would be closer to Rs. 50,000 a month today – not Rs. 20,000.
It isn’t only investors who never touch their SIP who fall behind, either. Plenty do revisit it every few years and bump it up – Rs. 20,000 becomes Rs. 25,000, say, and it feels like a real step up. But measured against what the income has actually grown by, a jump of a few thousand rupees is still nowhere close to the Rs.50,000 the numbers call for. The increase happened; it just wasn’t sized to the actual growth behind it.
A financial need doesn’t really care how the SIP was originally sized. A child’s education or a retirement corpus has a cost and a rough date attached to it, set mostly independent of whatever felt reasonable in year one. If the SIP isn’t moving while income is, the shortfall between the two builds up steadily, without any single decision along the way that felt like a compromise.
What a Top-Up Actually Does
A SIP Top-Up closes exactly that gap – increasing the instalment by a fixed amount or percentage at set intervals, so the plan keeps pace with what you’re actually able to set aside, rather than what you could afford a decade ago.
The Numbers
On a Rs. 10,000 SIP with a Rs. 2,000 annual Top-Up, assuming the 12.62% long-term average AMFI’s own guidelines use for equity funds:
| Time to Reach 1 Crore | Corpus at 20.1 Years | |
| Regular SIP of Rs. 10,000/- | 20.1 Years | Rs. 1 Crore |
| SIP of Rs. 10,000/- with Rs. 2000 Top-Up | 15.2 Years | Rs. 2.18 Crore |
Assuming an average return of 12.62% p.a. as per AMFI Best Practice Guidelines Circular No. 109-A/2024-25, dated September 10, 2024. Past performance may or may not be sustained in future and is not a guarantee of future returns.
Two things follow from that, in practice. Financial needs get met sooner, since more of a rising income is actually reaching them each year instead of the fixed sum agreed to long before. And the corpus ends up larger, since each additional instalment gets whatever runway is left to compound. None of it needs a fresh decision each year – the increase sits inside the plan the same way the original SIP did.
Advantages of a SIP Top-Up
- Reach financial needs sooner – a rising instalment shortens the time it takes to hit a fixed target, so the same corpus arrives years earlier than it would on a flat SIP.
- Build a higher corpus – over an identical tenure, the extra instalments plus compounding add up to a meaningfully larger final corpus.
- Stay systematic – the increase is scheduled and automatic, the same disciplined way the original SIP was set up, with no fresh decision required each year.
- Keep pace with rising income – savings grow proportionately as earnings grow, instead of quietly shrinking as a share of what’s being earned.
Where This Leaves You
If your income has grown since you started a SIP – and for most people, it has – a fairly simple question follows: has your investment grown with it? Where it hasn’t, that’s rarely because of anything done wrong, just a plan set once and left alone a little too long. A small increase, added regularly, tends to be enough to close the gap.
The information contained herein is only for information and does not constitute, and should not be construed as investment advice or a recommendation to buy, sell, or otherwise transact in any security or investment product or an invitation, offer or solicitation to engage in any investment activity.
Mutual fund investments are subject to market risks, read all scheme-related documents carefully.
