Your compensation may take several forms, including salary, fringe benefits and bonuses. If you work for a corporation, you might also receive stock-based compensation, such as stock options. These come in two varieties: nonqualified (NQSOs) and incentive (ISOs). With both NQSOs and ISOs, if the stock appreciates beyond your exercise price, you can buy shares at a price below what they’re trading for.
In addition to income tax, you must pay Social Security and Medicare taxes on earned income, such as salary and self-employment income. The 12.4% Social Security tax applies only up to the Social Security wage base of $118,500 for 2016. All earned income is subject to the 2.9% Medicare tax.