Why does starting early matter so much?
Because growth compounds. A dollar invested at 25 has decades to double, double again, and again. The same dollar invested at 35 skips one of those doublings entirely, and the doubling you skip is the biggest one, near the end. That's why someone who invests modestly but early often ends up ahead of someone who invests far more, later.
Can I just invest more later to catch up?
Partly, but you're fighting the math. To match an early starter you usually have to contribute dramatically more, because you no longer have the years that did the work for free. Time is the one input you can't buy back later.
What's the takeaway?
Start now with whatever you can, even if it's small. Consistency and time beat timing and size. The best day to start was years ago; the second best is today, and that's not a motivational poster, it's just how compounding arithmetic works.
Guess first
Two savers, ten years apart.
Both save $100 a month at 7% and stop at 65. One starts at 25, the other at 35. How much bigger is the early starter’s pile?
$100 × ((1 + 0.07/12)480 − 1) ÷ (0.07/12) = $262,481 · over 360 months $121,997 · the gap $140,484, bought with $12,000 of extra deposits
The skipped decade is the cheapest one to buy and the most expensive one to skip. All eight in Guess first
Questions
Frequently asked
Is it too late to start investing in my 30s or 40s?
No. Later is more expensive than earlier, but far better than never: you still have years of compounding ahead. The cost of waiting is real, which is exactly why the move is to start today rather than wait for a 'better' moment.
How does compound interest actually work?
You earn a return on your money, then next period you earn a return on both your original money and the previous return. Repeated over years, that snowball grows much faster than simple interest on the original amount alone.
