QSBS: The Exclusion That Gets Decided Long Before the Sale

Ask an owner what their business is worth and you will get a considered answer. Ask what they will keep after selling it and the answer gets vaguer. Section 1202 sits in the gap between those two numbers, and for owners who qualify it can be the single largest line item in the difference.

It is also the provision owners are most likely to discover one conversation too late. Nearly every requirement is settled at the moment stock is issued — by the entity you chose, the way the shares were acquired, and what the company owned that day. By the time a buyer is at the table, those facts are history.

What the provision does

Section 1202 excludes gain on the sale of qualified small business stock from federal income tax, up to a limit, if a set of conditions is met.

Legislation enacted on July 4, 2025 changed the terms and created a split that matters for every holding. Stock acquired after that date follows a tiered schedule: 50 percent of gain excluded at a three-year holding period, 75 percent at four years, and 100 percent at five years or more. Stock acquired before it stays under the prior rules, where shares acquired after September 27, 2010 and held more than five years can reach a full exclusion.

The amount is capped per issuer. For stock acquired after the 2025 date the limit is $15,000,000, adjusted for inflation for taxable years beginning after 2026; for earlier stock it remains $10,000,000. There is an alternative that gets overlooked: the limit is the greater of that dollar figure or ten times the aggregate adjusted bases of the qualifying stock disposed of during the year. For a founder whose basis is nominal, the dollar cap governs. For an owner who contributed substantial capital or property at issuance, the basis-driven figure can be considerably larger.

To illustrate the mechanic: a shareholder with $3,000,000 of adjusted basis in qualifying stock would compare the $15,000,000 cap against ten times that basis, and the larger of the two would apply. The figures are hypothetical and used only to show how the calculation works.

The company also has to be small enough at the right moment. Aggregate gross assets must not have exceeded $75,000,000 — raised from $50,000,000 for stock issued after the 2025 enactment — measured at issuance. A company that later grows well past that threshold does not lose eligibility for stock issued when it was under it. The test looks backward to the issuance date, not forward to the sale.

The gates that close early

Four requirements are effectively decided before anyone is thinking about an exit.

The issuer has to be a C corporation. Stock in an LLC or an S corporation does not qualify. Conversion is possible and is a legitimate planning move, but it generally starts the clock rather than reaching back, and the appreciation that accrued as a pass-through does not become eligible retroactively.

The stock has to be acquired at original issue. Buying shares from another shareholder — even in a company that would otherwise qualify — does not produce qualified small business stock in your hands. The statute requires acquisition from the corporation in exchange for money, property, or services.

The business has to be a qualified trade or business. The statute excludes a long list: health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage, banking, insurance, financing, leasing, investing, farming, extractive industries, and hotels, motels and restaurants. Owners of professional service firms frequently find themselves outside the provision entirely. Financial services is on that list, which is worth stating plainly rather than leaving as an awkward omission.

At least 80 percent of assets by value must be used in the active business. This one is ongoing rather than fixed at issuance. A company that accumulates a large investment portfolio, or holds substantial non-operating real estate, can drift out of compliance without anyone deciding to.

The traps

The redemption rules are the least intuitive and among the most damaging. If the corporation purchased stock from you during the four-year period beginning two years before your shares were issued, those shares are disqualified. Separately, significant redemptions across the shareholder base — purchases exceeding 5 percent of aggregate value during the two-year period beginning one year before issuance — can disqualify an issuance entirely. Ordinary events like buying out a departing founder can quietly poison a later round.

The other common failure is simpler: no contemporaneous documentation. Eligibility turns on facts as of issuance — the company’s gross assets that day, the nature of the business, the consideration paid. Reconstructing those years later, under diligence pressure, is a materially worse position than having recorded them at the time. Where a position is going to be taken, the file supporting it should be built while the facts are current.

California

For clients here, one more fact reshapes the arithmetic. The Franchise Tax Board’s instructions state that California does not conform to the qualified small business stock deferral and gain exclusion under IRC Sections 1045 and 1202, and direct taxpayers to report the entire realized gain.

A gain fully excluded federally can therefore be fully taxable in California. That does not make the federal planning less worthwhile — it remains the larger of the two exposures for most owners. It does mean an owner who has heard “QSBS is tax-free” should understand which tax is being described, and should not build a post-sale plan on a number that only holds at the federal level.

Where this belongs in a plan

Section 1202 is a legal determination made on specific facts, and whether it applies to you is a question for your CPA and your attorney. Via Luce Capital and LPL Financial do not provide tax or legal advice.

What planning contributes is timing and coordination. The decisions that determine eligibility — entity structure, how and when shares are issued, whether a redemption is a good idea this year, whether the balance sheet is drifting toward too many idle assets — are business decisions with tax consequences, usually made without a tax advisor in the room. Surfacing them while they are still open, and making sure the people who do advise on them have the facts, is the part that has to happen years ahead.

An exit is where the value of that shows up. It is not where it gets created.