QSBS Section 1202: The $15M tax exclusion for founders and HNW investors

What changed under OBBBA (July 2025)

The One Big Beautiful Bill Act, signed July 2025, significantly expanded Section 1202 QSBS benefits. If you're planning around a liquidity event, these changes determine whether existing stock or newly issued stock is more valuable.

QSBS eligibility: the checklist that matters

Section 1202 has hard eligibility rules at both the company level and the investor level. Missing any one of these disqualifies the stock.

Company-level requirements

• C-corporation only. S-corps, LLCs, and partnerships don't qualify. Delaware C-corps (the standard for VC-backed startups) qualify; Wyoming LLCs taxed as pass-throughs don't.
• Domestic U.S. corporation. Foreign corporations — even with a U.S. operating subsidiary — generally don't qualify.
• Gross assets ≤ $75M at issuance (post-OBBBA; was $50M). If the company raised a Series C at a $200M valuation, later stock issued may not be QSBS. Early rounds typically qualify easily.
• Active qualified trade or business. The company must be an active operating business — not a holding company, investment fund, or passive entity. Substantially all assets must be used in the active business.
• Not in an excluded industry. §1202(e)(3) excludes: professional services (health, law, accounting, financial services, brokerage, engineering, architecture, consulting, performing arts), banking/insurance/financing, farming, hospitality (hotels, restaurants), and oil/gas/mining.
  Note: SaaS, biotech, hardware, manufacturing, logistics, e-commerce — all typically qualify. "Consulting" firms or advisory shops typically don't.

Investor-level requirements

• Original issuance. Stock must be acquired directly from the corporation — not on the secondary market. Founders receiving stock at incorporation, employees receiving option exercises, and Series A/B investors all typically qualify. Secondary transfers generally break QSBS status.
• Non-corporate taxpayer. C-corps holding QSBS don't get the exclusion. Trusts and estates can qualify in certain situations. Partnerships and LLCs (if flow-through) can pass through QSBS status to their individual partners.
• Acquired for cash, property, or services. Purchasing via a secondary transaction — even from another original holder — disqualifies the shares.
• Hold the required period. 3+ years minimum for any exclusion (post-OBBBA stock); 5 years for 100%.

QSBS tax savings calculator

Estimate your federal and state tax burden on a QSBS exit. Use this to frame conversations with your tax advisor and wealth manager before any transaction.

The California trap (and other non-conforming states)

This is the most common planning mistake: a founder celebrates a "tax-free" QSBS exit — then receives a California Franchise Tax Board notice for 13.3% on the full gain.

California does not conform to Section 1202. Full stop. A California resident who sells $20M of QSBS pays:

• Federal: $0 (assuming ≥5-year hold, ≤$15M excluded)
• California: ~$2.66M (13.3% × $20M) — no exclusion³

The "change states before exit" strategy works only if you truly establish domicile in a no-income-tax state well before the exit. California actively audits part-year residency claims around liquidity events, looking at: where you physically live, your professional licenses, children's schools, country club memberships, car registrations, and more. Moving to Nevada or Texas on paper while still running a California-based company doesn't work.

State conformity snapshot (2026)

Advanced QSBS planning strategies

Stacking: multiple taxpayers, multiple $15M caps

The $15M cap applies per taxpayer, per issuing corporation. A married couple each owning QSBS in their own names gets $30M in combined exclusions from a single company's stock — two separate $15M caps. Gifting shares to adult children or irrevocable trusts before an exit can further multiply the exclusion, provided each donee satisfies holding period requirements (generally, they tack onto the donor's hold).⁴

Stacking requires careful structuring well in advance of any exit. Gifts of QSBS within a year of a known transaction may face scrutiny as step transactions.

Section 1045 rollover: preserving QSBS status on an early exit

If you're forced to sell QSBS before completing the required holding period — for example, in a merger or secondary transaction — IRC §1045 lets you roll the proceeds into new QSBS within 60 days and "tack" the prior holding period. This preserves the exclusion path if you reinvest in a new qualifying company.⁴

The rollover must be into a new company's QSBS at original issuance. It doesn't work if you simply hold cash and reinvest later. Timing is rigid.

QSBS in partnership/fund structures

QSBS held through a partnership (including LLC treated as partnership) can pass through to individual partners, who each get their own $15M cap. This is why angel investors and VC fund LPs sometimes have significant QSBS exposure they don't realize. Confirm with your fund's K-1 whether any gains are characterized as §1202 qualifying gains.

Gifting QSBS

Gifts of QSBS to family members (spouses, children) or to certain trusts can multiply the exclusion, since each donee gets their own cap. The recipient tacks onto the donor's holding period. Annual gift exclusion ($19,000 per recipient in 2026) and lifetime exemption both apply to the fair market value of gifted stock — but the QSBS exclusion multiplier can make the economics attractive even if you use some exemption.⁵

Qualified Opportunity Zones: a QSBS-compatible alternative

If QSBS doesn't apply to your situation — wrong business type, failed the gross asset test, S-corp — Qualified Opportunity Zone (QOZ) investments can defer and partially exclude capital gains from any source. The deferral runs through December 31, 2026; the exclusion on QOZ appreciation requires a 10+ year hold. Unlike QSBS, QOZ works on gains from reinvested capital, not the original investment structure.

Worked example: $25M founder exit

A founder received 5M shares at $0.01/share ($50,000 total basis) at company formation in 2022. Company sold in 2026 for $5/share — $25M gross proceeds, $24.95M gain. The stock qualifies as QSBS: domestic C-corp, SaaS company, gross assets under $50M at issuance (this was pre-OBBBA stock).

If this same company issued new stock at a Series A after July 4, 2025, those shares would get the $15M cap — saving an additional $1.19M in federal tax on the portion between $10M and $15M. For later-stage employees or investors receiving stock at or after the OBBBA effective date, the higher cap matters significantly.

If this founder lives in California: add $24.95M × 13.3% = $3.32M in non-excludable California tax. Total effective rate: ($3.56M federal + $3.32M CA) / $24.95M gain = 27.6% — substantially more than the "tax-free" headline.

When to get a fee-only advisor involved

QSBS planning is not a post-exit task. By the time you're in a transaction, your options are limited. The planning that matters happens:

• At formation: ensuring the entity is structured as a C-corp with qualified status from day one.
• At each equity issuance: confirming gross assets stay under the threshold; documenting that stock meets original-issuance requirements.
• When gifting to family: structuring transfers to multiply the exclusion without triggering step-transaction concerns.
• At pre-exit liquidity events (secondaries): evaluating whether §1045 rollovers or hold-period preservation strategies apply.
• On state tax strategy: if you're in California, deciding whether a genuine domicile change is practical and how far in advance it needs to happen.
• On stacking: identifying all eligible taxpayers (spouses, trusts, family members) who could hold separate blocks and realize additional exclusions.

HNW wealth advisors who work with founders and executives coordinate these decisions across your full picture — with your attorney (for trust structuring), your CPA (for timing and state tax), and your investment advisor (for reinvestment planning after a QSBS exit). No single specialist sees the whole picture without coordination.

Get matched with an advisor who knows QSBS

QSBS planning at $5M+ exit scale requires a fee-only advisor with specific experience in founder liquidity events. No product conflicts, no commissions — just coordinated planning.

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Sources

1. Grant Thornton — Explaining enhanced Section 1202 benefits (OBBBA 2025) — $15M cap, tiered 50/75/100% holding periods, $75M gross asset threshold; values verified April 2026.
2. The Tax Adviser — QSBS gets a makeover: Sec. 1202's new look (Nov 2025) — detailed OBBBA §1202 statutory analysis including gross asset threshold increase to $75M.
3. FBT Gibbons — States that don't conform to §1202 — California, Alabama, Mississippi, Pennsylvania non-conformity; New Jersey conformity beginning 2026.
4. Cornell LII — 26 U.S.C. § 1202 — statutory text including §1202(b)(1) cap, §1045 rollover rules, partnership pass-through provisions.
5. Tax Foundation — Qualified Small Business Stock (QSBS) Exclusion — policy overview and exclusion mechanics; 2026 annual gift exclusion $19,000 per recipient cross-verified.

QSBS rules verified against OBBBA (Pub. L. 119-XXX, July 2025) and current §1202 statutory text as of April 2026. Tax rates are estimates — consult your tax advisor for your specific situation.