Executive Summary

Section 1202 of the Internal Revenue Code offers one of the most valuable tax breaks for investors: the ability to exclude up to 100% of capital gains on qualified small business stock (QSBS). The 2025 One Big Beautiful Bill Act (OBBBA) expanded these benefits by introducing tiered holding periods, raising per-issuer caps, and indexing limits for inflation. However, trading businesses — whether in securities, futures, options, or digital assets — are explicitly excluded from eligibility. Traders cannot benefit through their own C corporation. However, traders may still access QSBS benefits by investing in a qualified trade or business (QTB) startup personally, using gifting and estate planning strategies (which can multiply the per-taxpayer exclusion if done correctly), or rollovers under Section 1045 (where the original QSBS holding period “tacks on” to the replacement QSBS).

What is QSBS?

Section 1202 allows non-corporate taxpayers to exclude from federal tax up to 100% of the capital gain from selling QSBS if:

• The stock was issued by a C corporation that is a Qualified Small Business (QSB).

• The stock was acquired initially at issuance for cash, property, or services. Stock acquired from resale doesn’t count. 

• The taxpayer satisfies the required holding period.

Key 2025 updates and the “applicable date.”

• Applicable date: On or after July 4, 2025 (the OBBBA enactment date). New rules apply to QSBS acquired on or after this date.

• Post-7/4/2025 stock: 50% exclusion after 3 years, 75% after 4 years, 100% after 5 years.

• Pre-7/4/2025 stock: Keeps the legacy 5-year rule (100% exclusion for post-9/27/2010 issuances).

• Per-issuer cap: The greater of $15M (indexed after 2026) or a 10× basis (legacy $10M applies for earlier stock pre-7/4/2025).

• Gross-asset limit: $75M for stock issued after July 4, 2025 ($50M for earlier issuances pre-7/4/2025).

Gross-asset test nuance: The aggregate gross-assets test is measured at the corporate level using tax basis: aggregate gross assets = cash plus the adjusted basis of other property. Section 1202(d)(2)(B) treats contributed property as having a basis equal to its fair market value at the time of contribution, and the test must be satisfied both immediately before and immediately after each stock issuance. Example: If a startup receives $30M cash and $19M FMV property, aggregate gross assets = $49M, qualifying under the pre-7/4/2025 legacy threshold of $50M. Once assets exceed the $50M or $75M threshold (depending on acquisition date), new stock issued after crossing that threshold will not qualify as QSBS.

Tax coordination notes: Excluded Section 1202 gains are not included in net investment income (Net Investment Income Tax – NIIT) and are not AMT preference items under current law. For partial exclusions, the excluded portion is still outside NIIT, and no AMT add‑back applies. The taxable (non‑excluded) portion of gain is subject to capital gains rates, generally 28% for Section 1202.

QSBS Key Limits Overview

Example: An investor purchases QSBS with a $2M basis. Ten years later, the shares are sold for $25M, producing a $23M gain. Because the 10× basis amount is $20M (10 × $2M), the investor can exclude $20M of gain — even though the $15M per‑issuer cap would otherwise apply — leaving $3M taxable.

Rule	Pre-7/4/2025 Stock	Post-7/4/2025 Stock (OBBBA)
Holding period	5+ years for exclusion	3 yrs = 50%, 4 yrs = 75%, 5+ yrs = 100%
Per-issuer cap	$10M (not indexed)	$15M (indexed after 2026)
10× basis cap	Available	Available
Gross-asset limit	$50M (at issuance)	$75M (at issuance, indexed after 2026)

Traders and the “Excluded Businesses” Rule

Section 1202 excludes certain types of businesses from QSBS eligibility, including investing, trading, financial services, banking, insurance, leasing, and similar activities. This means:

• A proprietary trading business or hedge fund does not qualify as a QSB.

• A trading partnership or fund, with or without trader tax status, cannot restructure into a C corporation and expect its shares to be QSBS.

• Even algorithmic or high-frequency trading firms are excluded, because their principal asset is investment and or trading activity.

This exclusion applies regardless of corporate structure or tax reorganization.

Traders eligible for trader tax status (TTS) prefer spousal LLC/partnerships for a SALT cap workaround strategy, or an S corporation for deducting health insurance premiums and retirement plan contributions, and a SALT cap workaround. C corporations are unsuitable for traders eligible for TTS. (See my related blog post.)

Qualified Trade or Business (QTB) Overview

To qualify, a corporation must conduct an active qualified trade or business (QTB). Section 1202(e)(3) excludes:

• Specified services: health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage services.

• Reputation/skill test: Businesses where the principal asset is the reputation or skill of one or more employees.

• Financial/asset-based: banking, insurance, financing, leasing, investing, or similar businesses.

• Other exclusions: farming, natural resource extraction, and hotels, motels, and restaurants.

Practice note: QTB exclusions overlap with Section 199A’s SSTB rules, and trading is also treated as an SSTB for Section 199A QBI purposes. 

Where Traders Might Benefit

1. Personal Investments: Traders can acquire QSBS by investing in a QTB startup as an individual and holding shares for the required period.

2. Gifting & Trusts: The per-taxpayer, per-issuer exclusion can be multiplied by distributing QSBS to family members or irrevocable trusts, provided they each hold the stock directly and meet all technical requirements. Example: A founder with $15M of QSBS gain gifts shares to two adult children and an irrevocable trust. Each donee may claim up to $15M (or 10× basis) of exclusion on their pro-rata gains, effectively multiplying the family’s total federal exclusion well beyond $15M. Gift tax and valuation planning should be considered before making transfers.

3. Section 1045 Rollover: Rollover gains into new QSBS within 60 days; the original holding period “tacks on” to the replacement QSBS, allowing for eventual 100% exclusion once the combined period meets the requirement.

Handling Upfront Startup Losses

Begin by utilizing a pass-through entity (LLC/partnership, or S corporation) to leverage early losses, and then transition to a C corporation that issues QSBS before reaching the $75M limit.

State Tax Implications

Category	States	Notes
Full Conformity	NY, CT, DE, OH, VA, and many others	No state tax on excluded gains.
Non-Conforming	CA, PA, MS, AL	Must add back exclusion and pay full state tax.
Partial	HI, MA	HI allows 50% exclusion; MA taxes short-term QSBS gains at regular rates and offers reduced rates for long-term QSBS.
Recent Change	NJ (2026+)	Begins conforming in 2026.

Advisor Tip: Partial conformity states may impose restrictions or higher rates — check with a state tax advisor.

Final Takeaway for Traders

Trading businesses cannot benefit from QSBS. But traders can still capture Section 1202’s powerful tax savings through personal investments, gifting, and rollovers.

California Sidebar: California does not conform to Section 1202. Even fully excluded federal QSBS gains are taxed by California.

Disclaimer

Section 1202 QSBS strategies can offer extraordinary tax savings, but they are complex and closely scrutinized by the IRS. Consider consulting a tax attorney or CPA with deep experience in structuring and deploying Section 1202 strategies before acting.

Sources

• Thomson Reuters Checkpoint §1202 (exclusions include investing, trading, financial services, asset management).

• Frost Brown Todd LLP: Analysis of Section 1202 business exclusions and California nonconformity.

• NSKT Global, KB Financial Advisors, Robert Hall & Associates: State conformity guidance.

• IRC §1202, OBBBA (P.L. 119-21).