Rules for stock issued after July 4, 2025 (OBBBA) vs before
| Rule | Issued after July 4, 2025 | Issued before |
|---|---|---|
| Exclusion | 50% after 3 years, 75% after 4, 100% after 5 | 100% after 5 years (for stock acquired after Sept 27, 2010) |
| Per-issuer cap | $15M (indexed) or 10x basis | $10M or 10x basis |
| Corporate gross assets test | $75M (indexed) | $50M |
| Entity | C corporation only | C corporation only |
Why most trade businesses miss out
- Wrong entity. S corporation and LLC interests are not QSBS. Converting to a C corporation starts a new holding period and may bring C corporation tax costs.
- Excluded fields. Section 1202(e)(3) excludes businesses in health, law, accounting, consulting and others, and any business whose principal asset is the reputation or skill of its employees. Dental, veterinary, medical and CPA practices are generally out.
- Asset sales. QSBS applies to selling the stock; a C corporation selling its assets pays corporate tax first.
Home-services companies organized as C corporations may qualify in some cases - that is a question for a tax attorney before you structure the deal.
Example
A founder buys original-issue C corporation stock for $100,000 in August 2025 and sells it for $5.1M in September 2029 (4+ years): under the post-OBBBA tiers, 75% of the $5M gain could be excluded if every requirement is met. Held to September 2030, 100% could be excluded. Illustrative only.
See your after-tax number without QSBS
Asset vs stock, allocation, NIIT and state tax.
Frequently asked questions
What is Section 1202?
A federal provision that lets holders of qualified small business stock in a C corporation exclude part or all of their gain on sale, subject to holding periods and caps.
Did the One Big Beautiful Bill change QSBS?
Yes, for stock issued after July 4, 2025: tiered exclusions at 3, 4 and 5 years, a $15M cap and a $75M gross assets test.
Does QSBS apply to S corporations or LLCs?
No. Only stock of a C corporation can qualify.
Sources
- 26 U.S.C. 1202 - Partial exclusion for gain from certain small business stock (Cornell LII) (accessed 2026-09-23)
- The Tax Adviser (AICPA) - QSBS gets a makeover: Sec. 1202 after OBBBA (Nov 2025) (accessed 2026-09-23)
- Baker Tilly - Changes to section 1202 in the One Big Beautiful Bill Act (accessed 2026-09-23)