QSBS: A Valuable Tax Break for Business Owners Just Got Better

A little-known provision in the tax code, Qualified Small Business Stock (Section 1202), allows certain business owners to avoid capital gains on the sale of closely held business shares. What was a significant tax benefit historically is further enhanced after the passage of the One Big Beautiful Bill Act (OBBBA) in 2025. If specific requirements are met, an owner of business shares may be able to exclude up to $15 million (or more in certain cases) of appreciation in the stock from federal capital gains taxes.

This provision is considered one of the most complex areas of the tax code requiring in-depth analysis from a qualified tax professional.

What is Qualified Small Business Stock (QSBS)?

When stock shares meeting the definition as QSBS are sold, up to $15 million of capital gains or 10 times the original cost basis of the stock—whichever is greater—can be excluded from capital gains treatment. To benefit from this massive tax break, the shares being sold must meet specific qualifications. First, this tax treatment only applies to a business organized as a domestic C-corporation (or an LLC that elects to be taxed as a corporation). Companies structured as pass-through entities for purposes of taxation are not eligible. These would include sole proprietors, partnerships, most LLCs and S-corporations.

Here are some additional requirements to meet the definition of QSBS:

  • The company must meet an aggregate gross assets test to determine if shares may be considered QSBS. Currently, if gross assets exceed $75 million at the time the shares are issued, QSBS treatment is not available.
  • The stock must generally be acquired directly from the company through an initial issuance, which means that shares purchased from another corporate shareholder are not eligible for this special tax treatment. However, QSBS acquired from an original issue and subsequently gifted to another person may be eligible for the capital gains exclusion.
  • The corporation must use at least 80% of its assets in a “qualified trade or business” which generally excludes professional service-related firms (law, accounting, finance, banking, etc.). Other types of businesses operating in the areas of hospitality, natural resources and farming are excluded as well. Additionally, the company must not hold more than 10% of its assets in securities.