VC & PE Glossary
What Is Blocker Corporation?
Updated
Definition
A blocker corporation is an interposed C-corporation used in fund structures — often by tax-exempt LPs — to block unrelated business taxable income from flowing through from operating partnerships. It converts pass-through income into corporate dividends eligible for portfolio exemption rules.
Useful for: Founders, Investors
A blocker corporation is a US C-corporation inserted between a private fund and an underlying pass-through investment to prevent tax-exempt limited partners from recognizing unrelated business taxable income (UBTI) directly.
How it works
Tax-exempt LPs (pensions, endowments, charities) generally avoid federal income tax on investment returns but face UBTI when they receive active business income through partnerships. A fund invests via a blocker corp that holds the partnership interest or operating asset; income arrives at the LP as dividends from a corporation rather than K-1 pass-through of operating income.
Blockers add corporate-level tax and administrative cost but preserve LP tax status. Venture funds more often use blockers in later-stage deals with debt, blocker acquisitions, or when selling portfolio companies structured as asset-heavy partnerships.
Founders selling to PE may encounter buyer entities that are blockers in a larger acquisition stack — usually invisible to day-to-day operations post-close. Tax counsel for the fund, not the startup CEO, typically designs blocker placement; founders encounter the concept mainly in complex secondary or PE-led exits.
Why it matters
- Investors (LPs/GPs): Fund formation lawyers model blocker needs before first close; missing blockers can scare off large tax-exempt anchors.
- Founders: Rarely choose blockers; understand they can add closing complexity and timing in PE-led exits.
- Operators: Post-acquisition HR and payroll stay the same; tax structure sits at holding company level.
Common mistake
Founders googling “blocker” during exit and assuming it blocks the deal from closing. It is a tax wrapper, not a veto right.
Related ideas
UBTI, fund structure, carried interest, and private equity acquisition vehicles.
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Common questions
Short answers for founders, LPs, and operators