Income is the money an individual makes. For tax purposes, there are two main types of income, which are taxed differently. Ordinary income includes wages, salary, bonuses and interest made on investments. Capital gains are the profits an individual makes from selling assets, including stock.
One key difference between ordinary income and capital gains is that when capital gains taxes are calculated, consideration is given not just to the sale price of the asset but to the total gain or loss the investment incurred, each outcome having significantly different tax consequences.