To encourage investments in certain small businesses, tax law provides certain tax benefits to investors. There is no one, standard definition for the term small business in the Internal Revenue Code. The elements used to define a small business vary, depending on the type of tax benefit involved.
For a small business to qualify for the tax credit for pension plan start-up costs it may not have more than 100 employees. In this case, the qualifying element defining what a small business is, is quantitative (number of employees).
To qualify for the Section 1202 50% exclusion of the gain on the sale of small business stock, the business must be a C corporation (not an S corporation) with gross assets of no more than $50 million. In this case, there are two qualifying elements: