November 5, 2026
If you are building a C corporation and counting on the qualified small business stock (QSBS) exclusion under Internal Revenue Code section 1202, the acquisition date on your stock certificate now matters more than almost any other line on the cap table. Stock acquired after July 4, 2025 sits under a rewritten set of rules. Older shares generally stay under the prior thresholds. Mixing those vintages without a plan is how exclusions get overstated.
Congress expanded section 1202 in the One Big Beautiful Bill Act of 2025 (OBBBA). For qualifying post–July 4, 2025 stock, the shareholder-level gain exclusion can reach the greater of $15 million or ten times basis, the corporation’s gross asset ceiling rises to $75 million, both figures begin adjusting for inflation after 2026, and partial exclusions open at three and four years of holding. The upside is real. So are the traps that have always lived in the statute: original issuance, the active business test, redemptions, partnership transfers, and thin documentation.
Think in two columns. Pre-OBBBA QSBS (stock acquired on or before July 4, 2025) generally still looks like this:
For stock acquired after July 4, 2025, OBBBA changes the picture:
A company that issued founder shares in early 2025, option exercises in late 2025, and preferred stock in 2026 can easily have three QSBS regimes on one capitalization table. Eligible gain on older stock can also reduce how much of the new $15 million limit remains available for the same issuer. Analyze each issuance on its own facts.
Before OBBBA, section 1202 was largely binary for most modern QSBS: hold more than five years and claim the exclusion, or sell earlier and look elsewhere (often to a section 1045 rollover). The new tiers change that math for post–July 4, 2025 stock.
A founder who sells after three years can still exclude half of the eligible gain, subject to the dollar and per-issuer limits. After four years, three-quarters can come off. The full exclusion still rewards a five-year hold. That flexibility helps when a strategic buyer will not wait, when an employee needs liquidity after vesting, or when a secondary process is already in motion. It does not mean every early exit is optimal. Running the after-tax comparison between a partial exclusion now and a full exclusion later is still a planning step, not an afterthought.
Section 1202 does not simply ask whether the company is under $75 million (or $50 million for older stock) on the day new shares are issued. In broad terms, the corporation generally must show that aggregate gross assets never exceeded the applicable limit before the issuance, and that immediately after the issuance – counting cash or property received for the stock – the company is still under the limit.
If the company once crossed the ceiling, later bringing assets back down usually does not reopen QSBS for new issuances. Earlier qualifying stock can remain eligible if other tests continue to be met. That “no cure” feature surprises founders who expect a temporary overage to be harmless.
Measurement also differs from enterprise value. For this test, aggregate gross assets are usually measured as cash together with the tax basis of other assets, not fair market value. Internally developed software, goodwill, and similar self-created intangibles often add little to the gross asset count even when the business is worth far more. Conversions from a partnership or LLC taxed as a partnership into a C corporation are different: contributed assets are generally tested at fair market value for the gross asset limit, which can push a conversion over the line if the business is already valuable.
OBBBA did not repeal the foundational QSBS requirements. Before you model a $15 million exclusion, confirm the basics:
These issues predate OBBBA and remain easy to miss in a fast-moving company:
Section 1045 still lets eligible shareholders roll gain from a QSBS sale into replacement QSBS within the statutory window, generally 60 days. That tool remains useful when a buyer will not wait for a three-, four-, or five-year mark, or when only a partial exclusion would otherwise apply. Replacement stock has its own qualification rules, and the rolled gain continues to depend on careful basis and holding-period tracking.
The section 1202 exclusion is a shareholder-level benefit. Gifts of QSBS can move stock to children or other donees while generally preserving QSBS status and tacking the donor’s holding period. Married taxpayers need to watch how the statute treats joint returns and how prior exclusions from the same issuer are counted.
Some families explore gifts to separate nongrantor trusts so that more than one taxpayer can claim a separate exclusion amount. That “stacking” idea sits in a sensitive area. Multiple trusts that look like a single economic arrangement can face scrutiny under section 643(f) and related doctrines, and grantor trust status can collapse separate-taxpayer treatment if the trusts are defective in the wrong direction. Treat multi-trust QSBS planning as a counsel-led project with real substance, not as a last-minute gift the week before signing an LOI.
When a liquidity event arrives, the IRS and buyers will ask whether the stock was QSBS. Weak files lose arguments that good contemporaneous records would have won. Practical habits include:
Before a sale or IPO process, build a QSBS diligence package the same way you would build a tax basis study. For high-dollar or close-call facts, a formal tax opinion may be appropriate.
If you are raising capital, converting an LLC, granting options, or preparing for a sale and want a second look at your QSBS facts, schedule a consultation with SMB CPA Group. We can help map acquisition dates, gross asset history, and holding periods alongside your attorney and deal counsel. Owners comparing entity choices may also find our posts on S corporation benefits and who really earns S corporation income useful, and our business entity resources cover broader structuring questions.
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SMB CPA Group