Review the availability and application of three special rules that allow exclusion or deferral of gain from the sale of the stock of a corporation not making the S corporation election. IRC 1202 provides that all or part of the gain from the sale of "qualified small business stock" can be excluded from gross income. IRC 1045 describes situations when the gain from the sale of "qualified small business stock" can be deferred. To understand the application of these two favorable provisions, the meaning of "qualified small business stock" and other requirements and limitations must be understood. IRC 1042 allows the deferral of gain from the sale of corporate stock to an employee ownership plan ( ESOP). This deferral requires a qualified reinvestment in an adequate amount at the right time. Study how these three provisions apply in the context of tax planning for corporate businesses.