The money you're paid for your time. It's how almost everyone starts — and it has one defining limit.
Earned income is the money you're paid for your time and your work — a wage by the hour, or a salary by the year. For almost everyone, it's the first money they ever make and the money that funds their whole life: the rent, the groceries, the savings. It is real, necessary, and honorable. It is also the engine that makes everything else in this section possible.
But earned income has one defining feature you have to understand clearly: it stops the moment you stop. Take a month off, lose the job, get sick — and the money ends with the work. That single fact is what separates a wage from the kinds of income that come later.
You trade hours, or output, for pay. That trade has two hard ceilings: there are only so many hours in a week, and your pay per hour can only climb so high. So earned income grows in a straight line — work more, earn more; work less, earn less.
It's also taxed at the highest rates of any kind of income — and the tax comes out before the money ever reaches you. The amount you agree to (your gross pay) is never the amount you take home (your net pay):
A rough illustration, not your exact numbers — the share taken out rises as you earn more.
The same limit shows up at every level of pay:
A high income is not the same thing as wealth. You can earn a great deal and still own nothing.
That last question is the whole game. The share of each paycheck you turn into something you own is where wealth begins.
There is nothing wrong with a wage — almost every fortune starts with one, and a steady paycheck plus the discipline to save is the foundation everything else is built on. But be clear-eyed about three things: earned income is taxed the most, it's capped by your time, and it ends when you stop.
A big salary can feel like the finish line. It isn't. Earn $200,000 and spend $200,000, and you've owned nothing — you've just had an expensive year. The paycheck is the raw material, not the result. Wealth only begins when part of the wage is converted into something that keeps working after you've gone home.
For most people, a wage is the only kind of income they will ever have — and that is exactly the issue the rest of this course examines. Wages add in a straight line; owned assets grow on themselves. So an economy where the many earn wages and the few own the assets pulls apart on its own, with no one having to cheat — the gap widens automatically.
The point here isn't to look down on the paycheck. It's the opposite: to help the person earning one turn part of it into ownership — and to ask why broad ownership is so rare in the first place. Wages fund the climb. Ownership is the climb.