The 2026 OBBBA changes turned the 5-year QSBS “cliff” into a flexible strategy. Whether you’re at year 3 or year 5, your federal tax liability could be zero.
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Without QSBS
You pay the standard 23.8% long-term capital gains rate (20% + 3.8% NIIT) on the entire $5M gain. No exclusion applies. No special rate. Every dollar of appreciation is fully exposed.
With QSBS 75% Exclusion
$3.75M excluded entirely. The remaining $1.25M (within cap) taxed at the §1202 flat 28% rate. Gain is within the $15M cap so no amount taxed at standard 23.8%. Total savings: $840,000.
Let’s assume a gain of $5M
| Metric | Standard Sale (23.8% Rate) | QSBS Strategy (75% Exclusion) |
|---|---|---|
| Total Capital Gain | $5,000,000 | $5,000,000 |
| Federal Exclusion | $0 | $3,750,000 |
| Taxable Amount | $5,000,000 | $1,250,000 |
| Federal Tax Due | $1,190,000 | $350,000 |
| Total Federal Tax | $1,190,000 | $350,000 |
Total Savings from Filing
$840,000
Savings = (FMVvest × Rateord) – (FMVgrant × Rateord + Appreciation × Ratecap)
The QSBS exclusion under IRC §1202 is almost always the most powerful tax strategy available to early-stage founders after the OBBBA — but it is a tiered benefit with strict eligibility rules, not a blanket guarantee. Four scenarios demand careful attention before you rely on it.
The full §1202 exclusion requires you to hold qualified small business stock for more than five years. Sell at year four and you qualify only for the 75% exclusion tier — sell at year three, only 50%. An early liquidity event can silently cut your tax benefit in half.
Post-OBBBA stock issued after July 2025 uses a new exclusion schedule: 50% (≥3 yrs), 75% (≥4 yrs), 100% (≥5 yrs). Pre-OBBBA stock retains the old rules. Mixing issuance dates across a cap table means different shareholders face different exclusion percentages at the same exit.
Software tools miss this. If your company redeemed shares from any shareholder within two years before or after your issuance, your entire QSBS tax benefit may be void under the §1202(c)(3) anti-redemption rule. Requires a partner-level cap table review before relying on the exclusion.
QSBS eligibility requires aggregate gross assets of $50M or less at the time of issuance. If you joined at Series B or later, or if prior rounds pushed gross assets over the threshold, your shares may not qualify at all. Run the §1202 asset test with an advisor before assuming eligibility.
Not every startup stock qualifies for the QSBS exclusion. Both the company and the investor must meet specific requirements. Here is what you need to know.
QSBS Filing Requirements
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C-Corporation Structure
The issuing company must be a domestic C-corporation. S-corps, LLCs, and partnerships do not qualify.
Small Business Size Limit
At the time of stock issuance, the company’s gross assets must be $50 million or less (raised to $75 million under the 2026 OBBBA).
Original Issue Stock Only
Businesses in professional services, finance, hospitality, and entertainment are excluded. Technology, manufacturing, and most other sectors qualify.
Minimum 3-Year Hold
You must hold the stock for at least 3 years to receive any exclusion benefit.
Individual Investors Only
The exclusion applies to individuals, trusts, and estates. Corporate entities cannot claim QSBS benefits.
| Requirement | Criteria |
| Business structure | C-Corporation only |
| Gross assets at issuance | $50M or less ($75M post-OBBBA) |
| Stock acquisition | Direct from company only |
| Minimum hold period | 3 years |
| Eligible investor type | Individual, trust, or estate |
The OBBBA raised the threshold from $50M to $75M for stock issued after July 4, 2025. This allows growth-stage companies to continue issuing QSBS-eligible stock longer than ever before.
Yes. Through strategic gifting to non-grantor trusts or family members before a sale, you can multiply the $15M cap. A family of four could potentially shelter $60M of gain.
QSBS is stock issued by a qualifying U.S. C-corporation that meets the requirements of Section 1202 of the tax code. When you sell QSBS, you may be able to exclude a large portion of your capital gains from federal taxes, making it one of the most valuable tax benefits available to founders and early investors.
It depends on how long you hold your shares. The exclusion tiers work like this:
All tiers apply up to the eligible exclusion cap.
Stock options themselves do not qualify. However, the shares you receive when you exercise your options can qualify as QSBS. The holding period begins on the date you exercise the options and receive the actual shares, not the date the options were granted.
