Qualified Small Business Stock (QSBS) After OBBBA: A Founder’s Q and A
Key takeaway: For QSBS issued after July 4, 2025, OBBBA replaced the all-or-nothing five-year holding period with a tiered exclusion, 50% of the gain at three years, 75% at four, and 100% at five, and raised the size limits to a $75 million gross-asset cap and a $15 million per-issuer exclusion (both indexed for inflation from 2027). Stock issued on or before July 4, 2025 keeps the old rules, the five-year cliff and the $50 million / $10 million caps, for its entire life.
Section 1202’s Qualified Small Business Stock (QSBS) exclusion lets founders and early investors exclude much—often all—of the capital gain on qualifying C-corporation stock. The One Big Beautiful Bill Act (OBBBA), signed July 4, 2025, made the benefit more generous for stock issued after that date. This Q&A covers the rules that stayed the same, what OBBBA changed, and the two planning issues we see most often: stacking the exclusion through gifts and trusts, and the offshore-holding-company trap that can quietly disqualify a U.S. founder’s stock.
What is QSBS, in one sentence?
QSBS is stock in a qualifying U.S. C corporation, acquired at original issuance, that—if held long enough—lets the holder exclude a large portion (up to 100%) of the capital gain on its eventual sale under § 1202 of the Internal Revenue Code.
What core QSBS rules did OBBBA NOT change?
Five fundamentals still apply to every QSBS analysis, regardless of when the stock was issued:
1. Domestic C corporation issuer. The stock must be issued by a U.S. C corporation; stock in an LLC, partnership, or S corporation cannot be QSBS.
2. Original issuance. You must acquire the stock directly from the company (for cash, property, or services), not on the secondary market.
3. Active qualified business. At least 80% of the company’s assets (by value) must be used in an active qualified trade or business; many service fields (law, health, consulting, financial services, and the like) are excluded. “Used in” is broader than money actually deployed: under § 1202(e)(6), cash and assets held for the reasonably required working-capital needs of the business, or held for investment and reasonably expected to be used within two years to fund research and experimentation or growing working capital needs, count toward the 80% if the company can document that anticipated need. The caveat is that, once the company has existed for at least two years, no more than 50% of its assets may qualify as active under this working-capital rule.
4. Size (asset) test. The company’s aggregate gross assets must stay under the cap both immediately before and immediately after the stock is issued, counting the new cash raised.
5. Per-taxpayer, per-issuer cap. The exclusion is capped separately for each taxpayer and each issuer—the feature that makes gift and trust “cap-stacking” possible.
What did OBBBA actually change?
OBBBA § 70431 applies only to QSBS issued after July 4, 2025 and makes three changes:
1. Tiered holding period. The old all-or-nothing five-year cliff is replaced by a graduated exclusion: 50% of eligible gain at 3 years, 75% at 4 years, and 100% at 5 years.
2. Higher asset cap. The company-size limit rises from $50 million to $75 million of gross assets.
3. Higher per-issuer cap. The per-taxpayer, per-issuer exclusion floor rises from $10 million to $15 million (or 10× basis, if greater).
The $75 million and $15 million figures are indexed for inflation beginning in tax year 2027. One catch: gain excluded at the 50% and 75% tiers is taxed at 28% (plus the 3.8% net investment income tax, with AMT exposure), so the full-value, AMT-free result still requires a five-year hold.
A separate OBBBA change quietly helps with the asset cap. By enacting § 174A to restore immediate expensing of domestic research costs for tax years beginning after 2024, OBBBA reversed the 2017 Tax Cuts and Jobs Act rule that had forced companies to capitalize and amortize R&D. This matters for QSBS because the gross-asset test counts the adjusted tax basis of a company’s property: capitalized R&D had been building up basis and pushing research, intensive companies over the asset cap, disqualifying stock that would otherwise have been QSBS. Expensing those costs again keeps basis, and reported gross assets lower, preserving eligibility for many R&D-heavy startups. (Research conducted outside the United States must still be amortized over 15 years.)
Old rule or new rule—how do I know which applies?
It turns entirely on the issuance date. Stock issued on or before July 4, 2025 keeps the old rules—the five-year cliff and the $50 million / $10 million caps—for its entire life, even if sold years later. Only stock issued after July 4, 2025 uses the new tiered schedule and the higher caps. OBBBA does not, and cannot, retroactively improve older stock.
How can gifts and trusts “stack” the QSBS exclusion?
Because the exclusion cap is measured per taxpayer, per issuer—not per company—each separate taxpayer who owns QSBS in the same company gets their own $10 million / $15 million (or 10×-basis) cap. Spreading QSBS across several taxpayers multiplies the total gain a family can exclude. Practitioners call this “cap-stacking.”
The mechanism is § 1202(h). When QSBS is transferred by gift, at death, or through a partnership distribution, it keeps its QSBS character in the recipient’s hands: the recipient tacks the donor’s holding period and takes the donor’s basis, so the five-year clock does not restart. A founder can therefore gift QSBS to separate non-grantor trusts, to children, or to grandchildren—each a distinct taxpayer with its own full cap.
Example: suppose a founder faces $45 million of gain on a single issuer. Relying on one $15 million cap leaves $30 million fully taxable. But if the founder had gifted portions of the stock, well in advance, to two separate non-grantor trusts, then the founder plus the two trusts hold three independent $15 million caps—enough to shelter the full $45 million. The same idea scales with children, grandchildren, and additional non-grantor trusts.
The planning only works if it has real substance. The gift must be complete and made before a sale is on the horizon—transfers after a signed letter of intent risk recharacterization under the assignment-of-income doctrine. Trusts must be genuinely non-grantor (watch the reciprocal-trust doctrine when spouses create trusts for each other, and make sure any ING/DING design satisfies §§ 671–679). The practical rule is to fund cap-stacking trusts two or more years before any sale conversation begins, so the substance of each gift is unimpeachable when the deal arrives.
Why can a BVI or Cayman holding structure make my stock non-QSBS?
Because QSBS must be stock of a domestic (U.S.) C corporation that you acquired at its original issuance. If a U.S. founder’s shares are in a foreign parent, a BVI, Cayman, Singapore, Hong Kong, or PRC holding company, that in turn owns the U.S. operating C corporation, the founder does not own QSBS. What the founder holds is foreign-parent stock; the U.S. C corporation sits one layer down, and the founder never received its stock directly.
This structure is extremely common, companies are often incorporated offshore for fundraising, treaty, or residency reasons, with founders holding shares in the offshore parent. But the offshore parent’s stock fails the § 1202(c)(1) domestic-C-corporation requirement no matter how clean the underlying U.S. subsidiary is. The indirect ownership simply does not count.
Fixing it later helps only going forward. When the structure is inverted and a U.S. C corporation is placed at the top, the QSBS holding period starts on the date of that new U.S. issuance—not on the date the founder first received the offshore shares. A founder who emigrates to the United States already holding foreign-parent stock cannot retroactively convert it into QSBS by redomesticating.
A check-the-box election may offer a way out—but an uncertain one. If the foreign parent is an eligible entity, the founder can elect on Form 8832 to treat it as disregarded (or as a partnership) for U.S. tax purposes. Treated as disregarded, the founder is regarded as holding the underlying U.S. C-corporation stock directly, which could bring the stock within § 1202.
There are two routes to making the election reach back in time. First, late-election relief within the automatic window: under Rev. Proc. 2009-41, an eligible entity may file Form 8832 up to three years and 75 days after the intended effective date, provided it missed the deadline only because the form was not filed and it has filed all returns consistent with the classification it intended. Second—once even that window has closed—a request for a private letter ruling from the IRS seeking permission to make a late election (so-called “9100 relief”).
The outcome of a private letter ruling is far from clear. The IRS may decline to grant relief, and even a successful election leaves unsettled questions, most importantly, whether the deemed liquidation a check-the-box election triggers means the founder acquired the U.S. stock at “original issuance,” and when the QSBS holding period begins. In other words, the check-the-box election is a potential fix, not a reliable one. The dependable course remains to incorporate in Delaware from inception, even if a foreign holding entity is later layered above for offshore fundraising or a foreign listing.
How do California and Washington tax QSBS?
California does not conform to § 1202 at all, it repealed its QSBS provision after the 2012 Cutler v. Franchise Tax Board decision, so a California resident who excludes 100% of a QSBS gain federally still pays California capital-gains tax on the same dollars. Washington, by contrast, currently exempts QSBS gain from its 7% capital gains excise tax under RCW 82.87, an exclusion presumed to track § 1202 as amended. Founders relocating to either state in anticipation of a sale should confirm the residency and source-of-gain mechanics first.
What’s the practical takeaway?
OBBBA made QSBS more generous, but not more forgiving. Incorporate as a U.S. C corporation early; run the asset-size math before each round closes, not after; stack caps through gifts and non-grantor trusts funded well ahead of any sale; and avoid placing a foreign holding company over a U.S. C corporation if QSBS matters to you. In our practice, the biggest QSBS losses have almost never been about the statute—they have been about timing and structure.
One important exception softens the “hold it directly” rule. Under § 1202(g), C-corporation stock issued to a pass-through entity, an LLC or partnership, or, in limited circumstances, a foreign pass-through, can still generate the QSBS exclusion for the entity’s owners. The exclusion flows up to a partner or shareholder who held an interest in the entity at the time it acquired the QSBS, and only to the extent of that interest, with the holding period and basis tracked through the entity.
A foreign pass-through can qualify only in narrow situations and demands careful analysis, because the ultimate owner must still be a U.S. taxpayer able to claim § 1202. As always, the structure has to be built correctly from the outset; it cannot be reverse-engineered after the gain is in sight.
