Cost of Investment Delay Calculator

How the Cost of Delay Calculator works

Every year you wait to start investing is a year of compounding you can never get back. This tool compares two plans that both run until the same age: one where you start now and one where you start after a delay. Because the delayed plan runs for fewer years, it ends up with far less — and the difference is the true cost of waiting.

How it is computed

• P = monthly SIP   i = monthly return (annual ÷ 12 ÷ 100)
• n = number of instalments — from your current age to your end age if you start now, or shortened by the delay if you wait

Worked example

Investing ₹10,000 a month at 12% from age 25 to age 60 grows to about ₹6,49,52,691. Delaying the start by 10 years (starting at 35 instead) cuts it to about ₹1,89,76,351 — a loss of ₹4,59,76,340. You would have skipped only ₹12,00,000 of contributions in those 10 years, yet you lose almost forty times that in final value, because the earliest instalments compound the longest. The chart shows the widening gap between starting now and delaying.

Things to keep in mind

• The cost of delay grows dramatically with the horizon — delaying hurts far more when you are young with decades ahead than close to your goal.
• Returns are not guaranteed; this compares both plans under the same assumed return, so it isolates the effect of timing alone.
• The takeaway: starting even a modest SIP today usually beats waiting to invest a larger amount later.