Qualified Small Business Stock (QSBS)
Definition
A U.S. tax provision allowing investors in qualifying small businesses to exclude a portion of capital gains from federal taxation upon the sale of stock held for more than five years. QSBS incentives encourage early-stage venture investment and can significantly enhance after-tax returns for founders and investors in growth companies.
Complementary Terms
Concepts that frequently appear alongside Qualified Small Business Stock (QSBS) in practice.
The tax effect arising from temporary differences between the fair values assigned to assets and liabilities in a purchase price allocation and their corresponding tax bases. Under IAS 12 and ASC 740, deferred tax liabilities are recognised on the step-up in fair value of acquired intangible assets (which typically have zero tax basis), while deferred tax assets may arise on assumed liabilities.
A business model that creates value by facilitating exchanges between two or more interdependent user groups — typically producers and consumers — through a digital platform. Platform businesses generate powerful network effects and intangible assets including user data, algorithmic matching capabilities, and brand trust.
Firms that provide specialist knowledge-based services such as consulting, engineering, IT services, legal advisory, and financial analysis. KIBS firms are characterised by high intangible asset intensity, with the majority of their enterprise value derived from human capital, client relationships, proprietary methodologies, and reputation.
A form of private equity financing provided to early-stage, high-growth potential companies in exchange for equity. VC firms typically invest across multiple rounds (seed through Series C+), provide strategic guidance, and target returns through exits within 5-10 years.
Investment capital provided to companies that are not listed on a public stock exchange, or used to take public companies private. PE firms typically acquire controlling stakes in mature businesses, apply operational improvements, and seek exits within 3-7 years.
A marketplace where existing shareholders in private companies — typically employees, early investors, or founders — can sell their ownership stakes to new buyers before an IPO or trade sale. Secondary markets for private shares have grown significantly, with platforms such as Forge Global and Nasdaq Private Market facilitating transactions that provide liquidity and price discovery for otherwise illiquid private company equity.
The managing entity of a private equity or venture capital fund, responsible for making investment decisions, managing portfolio companies, and generating returns for investors. GPs typically earn management fees and carried interest.
The pattern of returns typically experienced by private equity and venture capital funds, where early years show negative returns (due to fees and unrealised investments) before turning positive as portfolio companies mature and generate exits. The shape of a fund's J-curve reflects its deployment pace and value creation speed.
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