Somewhere online this week, a friend of mine ran some "rough math," and it stopped me scrolling.
The premise was simple. Take $6,200 a year — roughly what someone earning $100,000 pays into Social Security — and invest it every year from age 25 to 67 at a 7% average return. The result? About $1.45 million. Kept invested and drawn down over 30 years, that could produce somewhere near $9,600 a month.
Those numbers are eye-catching. They're also a great excuse to talk about the single most powerful — and most underused — force in personal finance: compounding.
Most people picture growth as a straight line. Compounding doesn't work that way. Your returns earn returns, and those earnings earn returns, and the effect snowballs. The chart of that $6,200-a-year habit is nearly flat for the first decade — and then it turns sharply upward.
Here's the part worth sitting with: the majority of that $1.45 million isn't the money you contributed. It's growth on growth, and most of it arrives in the final third of the timeline. Which means the two things that matter most are also the two things people most often get wrong — starting early, and staying invested long enough for the back half of the curve to do its work.
Now, the responsible caveats — because this is where a real plan separates itself from a screenshot.
That 7% is an assumption, not a promise. Markets don't deliver steady returns; they lurch, and the order of good and bad years matters enormously, especially near retirement. The $9,600 a month also isn't adjusted for inflation — in 40 years, it won't buy what it buys today. And that money runs out; the drawdown math assumes a finite window.
It's also worth addressing the comparison lurking underneath that original math — the idea that you'd "do better" investing your Social Security contribution yourself. It's not that simple. Social Security isn't just a retirement account. It's inflation-adjusted for life, it can't be outlived, and it includes disability and survivor protections that a brokerage balance simply doesn't. A private portfolio and Social Security aren't the same tool doing the same job. The lesson isn't "opt out of one." It's "understand what each does, and build deliberately on top of both."
That nuance is the whole point. Compounding is extraordinary — and the details determine whether it works for you or quietly works against you.
Strip away the specific numbers and four levers decide how this story ends:
That last point is where most high earners leave money on the table. Compounding doesn't happen in a vacuum. Taxes drag on it. Poorly structured accounts drag on it. A real estate move made in isolation, an estate plan that never got funded, a portfolio that fights your tax strategy instead of complementing it — each one is a small leak in a system that's supposed to compound. Plug the leaks, align the moves, and the same habit produces a very different number.
You don't need a windfall, perfect timing, or a hot stock tip. You need to start, stay consistent, stay invested — and make sure every dollar is pulling in the same direction. That's not a math problem. It's a coordination problem, and it's exactly the one the Building Wealth Hub is designed to solve.
If you've been meaning to put real intention behind the money you're already earning, that's a 30-minute conversation. You'll leave with a clearer picture of your own version of this curve — whether or not we work together.
330.565.9013 · bdavis@corbettconsult.com · corbettconsultingllc.com
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