The Founder’s Super-Exemption: QSBS (Section 1202)

The Founder’s Super-Exemption: QSBS (Section 1202)

The greatest tax loophole left in America. How to sell your startup for $10M (or up to $50M with “Stacking”) and pay exactly $0 in Federal Capital Gains Tax.

Dec 29, 2025 Code Authority: Team BMT RETIREMENT > BUSINESS TAX STRATEGY

Executive Summary

  • The C-Corp Advantage: Most small businesses start as LLCs to avoid double taxation. But if you plan to exit big, the LLC is a mistake. Under **IRC Section 1202**, if you hold “Qualified Small Business Stock” (QSBS) in a C-Corp for 5+ years, you can exclude **100% of the gain** from federal taxes.
  • The Limits: The exclusion is capped at the greater of **$10 Million** or **10x your cost basis**.
    👉 Example: You invest $100k. You sell for $10M after 5 years. Tax = $0. You keep the full $10M.
  • The “Stacking” Multiplier: The $10M limit is *per taxpayer*. Smart founders gift shares to separate Irrevocable Trusts (e.g., for 3 children) *before* the sale. Each trust gets its *own* $10M exemption.
    👉 Math: Founder ($10M) + 3 Trusts ($30M) = **$40M Tax-Free Exit**.

The “Original Issuance” Rule

Critical Condition: To qualify, you must acquire the stock at **”Original Issuance”** directly from the company (not bought from another shareholder on the secondary market).
👉 Size Cap: The company’s gross assets must be under **$50 Million** at the time the stock is issued. Once you cross $50M, new stock issued is no longer QSBS qualified (but old stock keeps its status).

Mechanic: The Tax-Free Waterfall

100% Excl.
Fed Tax Rate 0%
5 Years
Holding Period
Stacking
Trust Multiplier
Rollover
Section 1045

Simulation: Selling a Tech Startup ($10M Exit Price)

Net Cash After Sale
Standard LLC Sale$7.6M Net Cash
High Tax: Pay 23.8% Fed + State Tax. You lose ~$3M+ on a $10M exit.
QSBS C-Corp (Sec 1202)$10.0M Net Cash
Zero Tax: 100% Federal Exclusion. You keep the full $10M. Pure Alpha.
California WarningCA Does Not Conform
State Trap: CA & NJ don’t recognize QSBS. You still pay state taxes (~13.3%).
Feature LLC / S-Corp C-Corp (QSBS Qualified)
Tax on Exit 23.8% (Federal min) 0% (Up to $10M/$50M)
Investor Preference Low (VCs hate K-1s) High (VCs want QSBS)
Loss Deduction Pass-through to owner Trapped in corporation

“Founders obsess over dilution, but tax is the biggest dilution of all. Choosing a C-Corp structure early isn’t just paperwork; it’s a decision to preserve 24% of your future exit value. It is the single most valuable box you will ever check.”

Essential Resources

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