You may have wondered why, in a given year, you may be taxed on more S corporation income than was distributed to you from the S corporation in which you are a shareholder. The answers lies in the way S corporations and their shareholders are taxed. But before explaining those rules, be assured you that when you are taxed on undistributed income, you won't be taxed again if and when the income ultimately is paid to you. Unlike a regular or C corporation, an S corporation generally isn't subject to income tax (California does charge a 1.5% entity-level tax). Instead, each shareholder is taxed on the corporation's earnings, whether or not the earnings are distributed. Similarly, if an S corporation has a loss, the loss is passed...