Really? If you save up $10,000 out of your wages, okay, that's already been taxed. Then you put your $10,000 into, let's say, a stock. A year later the stock has doubled, you sell it for $20,000.
What do you pay tax on?
You didn't answer my question. Why not? It wasn't rhetorical. I want you to say what gets taxed,
and what DOESN"T, in the above example.
I'll answer your question. What gets taxed:
On the 10K you earned and invested: You paid income tax when you earned it. When you invested it in the company, off the top of my head on your behalf the company paid it's employee's social security taxes, medicare taxes, federal unemployment taxes, state unemployment taxes, local business operating tax, local business asset taxes, sales taxes for everything they bought except direct materials, business income taxes, special taxes for the field they are in, tariffs for any goods they imported, repatriation of money taxes for any money they repatriated, gasoline taxes for company automobiles. If I think about it, I am sure I can come up with plenty more.
On the 10K gain, you paid all those business taxes as well, taxes on any dividends you got and capital gains taxes on the rest.
What doesn't get taxed: Nothing