Money left idle doesn’t stand still
Say you set aside $1,000 and leave it as cash. The number on the screen stays $1,000 — so it feels safe. But prices rise every year. At around 3% inflation, prices more than double over 30 years — rising roughly 2.4× — which means that untouched $1,000 will buy only about $410 worth of today’s goods by the time you retire. Doing nothing isn’t neutral. It’s a slow, quiet loss.What the same $1,000 does when it’s invested
Now imagine that $1,000 is invested and earns an average of 7% a year. Each year’s gain is added to the balance, and the next year’s growth is calculated on the larger amount. That’s compound interest — growth earning growth.| After… | Left as cash | Invested at ~7% / yr |
|---|---|---|
| 10 years | $1,000 | ~$1,970 |
| 20 years | $1,000 | ~$3,870 |
| 30 years | $1,000 | ~$7,610 |
The real magic is the habit
One $1,000 is a nice illustration — a habit is what changes a life. Invest $1,000 a year at that same 7%, and after 30 years you’d have around $94,000 — even though you only put in $30,000 of your own money. The other ~$64,000 is pure growth. This is the good news hiding behind a scary-sounding retirement number: reaching it isn’t about extraordinary returns or a big salary. It’s about time.Why starting early beats starting big
Time is the one ingredient you can’t buy back. Wait ten years to begin, and the same $1,000-a-year habit grows to only about $41,000 instead of $94,000 — less than half. You skipped just $10,000 of contributions, but it cost you more than $50,000 at the finish line.The earlier you start, the more of the work compound interest does for you — and the less you have to sacrifice today to reach the same goal.
See it with your own numbers
These figures are a simple illustration — your real income, expenses, and goals are unique to you. That’s what Financial Plan is for: it runs this same math on your assets, contributions, and life events, so you can see where you’re heading and test what changes when you start sooner or set aside a little more.Figures are illustrative and assume a steady 7% annual return and 3% inflation. Real returns vary year to year, investing carries risk, and this isn’t financial advice — it’s a way to understand how time and compounding work.