What it means
Buried in the tax code is one of its most generous sentences: build or back the right small business, hold the stock five years, and the federal gain can be entirely tax-free. The statute defines the target precisely: stock in a domestic C corporation, acquired at original issue with money or services, in a company with gross assets never above 50 million dollars.
The Cornell text of 26 USC 1202 sets out the exclusion: enacted in 1993 and widened over time, the excluded share of gain reached 100 percent for stock acquired after September 2010, subject to per-issuer caps. The cap is generous but real: the exclusion tops out at the greater of 10 million dollars or ten times basis, per issuer, per taxpayer.
Exclusions bite at the edges: many service businesses, finance, farming, and hospitality fail the qualified trade test, and redemptions near the issue can poison otherwise good stock. The five-year holding period is hard: sell at four years and the whole benefit vanishes, though a rollover provision lets gain move into fresh qualified stock if reinvested quickly.
Founders and early employees plan around it deliberately: entity choice, grant timing, and secondary sales are all organised with 1202 in mind, and sophisticated buyers now ask for representations about it. For a non-finance reader, Section 1202 is the tax code's love letter to startups: the right stock, held long enough, can make a life-changing exit federally tax-free.
State taxes decide much of the real prize: some states conform to the federal exclusion and others, notably the largest, do not, so the same exit can be tax-free in one filing and merely discounted in another. The provision's widening tells its political story: enacted at 50 percent exclusion, raised to 75, then 100, each step a congressional bet that patient equity in small companies deserves the code's best rate.
In practice
Real-world examples.
Example
An engineer who bought original-issue stock for cash in a seed-stage C corporation sells her shares six years later with a gain of $7,000,000. The stock met the qualified small business tests and the gain sits below the per-issuer cap, so the gain is federally excluded under the 100% exclusion. The verification folder, not the sale price, is what makes that outcome safe to claim.
Example
A founder must sell part of his stake after only four years, which would forfeit the exclusion on that stock. He uses the rollover provision, reinvesting the proceeds into new qualified stock within sixty days, so the gain moves into the replacement shares. The route preserves the benefit at the cost of restarting both the holding period and the startup risk.
Example
A company's gross assets pass $50,000,000 before it issues a new round of shares. Earlier investors keep their position, but stock issued after the line is crossed cannot qualify, so later backers cannot claim the benefit. A diligent investor checks the balance sheet at the issue date before assuming the exclusion is available.
Formula
Calculation
Excludable gain = the lesser of (a) 100% of the gain on qualified small business stock acquired after September 27, 2010 and held over five years, and (b) the per-issuer cap, which is the greater of $10,000,000 or 10 times the taxpayer's adjusted basis in that issuer's stock. This assumes every other qualification test is met.
Worked example 1: an investor buys original-issue stock for $1,000,000 and sells it six years later for $6,000,000. The gain is $6,000,000 - $1,000,000 = $5,000,000. The cap is the greater of $10,000,000 and 10 x $1,000,000 = $10,000,000, so the cap is $10,000,000. The excludable gain is the lesser of $5,000,000 and $10,000,000, which is $5,000,000, leaving $0 of federal gain.
Worked example 2: the same investor sells for $16,000,000 instead. The gain is $15,000,000, but the cap is still $10,000,000, so $10,000,000 is excluded and the remaining $5,000,000 is taxed under the ordinary capital-gain rules.Case study
Seen in the real world.
This case study is fictional and illustrative. A made-up engineer joins a robotics startup at its seed stage, receiving stock for cash in a C corporation with 8 million dollars of assets. Six years later the company sells for a sum that makes her stake worth 7 million dollars, and her accountant delivers the sentence every founder hopes to hear: the gain is excludable.
The verification file is where the benefit is actually earned: the corporation's C status from day one, the original-issue documentation, annual checks that assets never crossed 50 million, the absence of disqualifying redemptions, and the calendar proving the five-year hold, each a fact that had to be true continuously for six years. Her co-founder nearly lost it all: a proposed secondary sale to a friendly investor at year four would have voided his exclusion, and the rollover route, reinvesting into new qualified stock within sixty days, saved the benefit at the cost of restarting risk. The accountant's closing memo to both is the section distilled: 1202 does not reward success, it rewards paperwork that survives success, and the difference between a tax-free exit and a seven-figure surprise is a folder nobody felt like keeping.
Watch out
Common mistakes.
- Assuming any startup stock qualifies; the company must be a domestic C corporation under 50 million in gross assets, in an eligible trade, with stock acquired at original issue.
- Selling before five years; the exclusion is all or nothing on the holding period, saved only by the narrow rollover provision.
- Ignoring redemptions; company buybacks near the issuance can disqualify stock, a trap in secondary-friendly cap tables.
Questions
People also ask.
What is Section 1202?
The tax code provision excluding up to 100 percent of gain on qualified small business stock held more than five years, capped at the greater of 10 million dollars or ten times basis.
What stock qualifies?
Original-issue stock in a domestic C corporation with gross assets never over 50 million dollars, in an eligible trade, acquired directly for money, property, or services.
What breaks qualification?
Selling inside five years, disqualifying redemptions around the issue, ineligible business lines like many services and finance, or losing C corporation status.
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