The Compounding Showdown
The Real Mathematical Cost of Waiting to Start Your SIP
“Priya: "I am starting a ₹5,000/mo SIP with my first salary." Rohan: "Bro, this is the time to enjoy life and buy gadgets! I will start at 27 with higher salary!"”
“See Priya! My salary increased, so I am finally starting my own ₹5,000/month SIP. Five years is nothing — I will catch up easily!”
“Rohan, we both put in ₹5,000 a month. You invested ₹10.8 Lakhs and reached ₹38.3 Lakhs. I invested ₹13.8 Lakhs and reached ₹73.7 Lakhs. Those 5 years cost you ₹35.4 Lakhs — to catch up you would have needed ₹9,622 a month, almost double.”
“The best time to start was 5 years ago. The second best time is TODAY! Never delay your compounding roadmap!”
Calculate Your Personal Cost of Delay
Adjust your monthly SIP and delay months to see exact compounding loss and catch-up SIP required.
SIP Investment & Delay Parameters
How Much Extra SIP is Needed to Catch Up?
Corpus Loss Across Delay Timeframes
| Delay Scenario | Maturity Value | Compounding Loss | Catch-Up SIP Needed |
|---|---|---|---|
| 0 Months (Started Today) | ₹50.46 L | ₹0 (Zero Loss) | ₹10,000/mo |
| 6 Months Delay | ₹46.95 L | ₹3.51 L | ₹10,748/mo |
| 1 Year Delay | ₹43.64 L | ₹6.82 L | ₹11,562/mo |
| 2 Years Delay | ₹37.59 L | ₹12.86 L | ₹13,422/mo |
| 3 Years Delay | ₹32.23 L | ₹18.23 L | ₹15,658/mo |
| 5 Years Delay | ₹23.23 L | ₹27.22 L | ₹21,717/mo |
Year-by-Year Growth Curve: Started Today vs Delayed Start
The Compounding Math Behind SIP Cost of Delay
In equity compounding, over 75% of your final wealth is generated in the final quartile of your investment horizon. However, that exponential surge relies entirely on the compounding foundation built by your earliest installments. Delaying by 1 year does not merely cost you 12 missed installments — it permanently erases 15 years of uninterrupted compound interest on those crucial starter contributions.
Cost of delay, with your numbers
The instalments you skip are the earliest ones, and those are the ones that compound longest. That is why a short delay early costs far more than the missed instalments themselves, and why catching up later needs a much bigger SIP than the one you skipped.