2026 QSBS Eligibility Navigator: Does Your Stock Qualify?
Use this interactive checklist to quickly assess whether your shares likely qualify as Qualified Small Business Stock (QSBS) under Section 1202, including the expanded rules under the One Big Beautiful Bill Act (OBBBA).
QSBS allows founders and early investors to exclude up to the greater of (i) a per-taxpayer, per-issuer dollar cap or (ii) 10× their adjusted basis in capital gains from federal tax on a qualifying exit. The dollar cap is generally $10 million for QSBS issued on or before July 4, 2025, and $15 million for QSBS issued after July 4, 2025 under the One Big Beautiful Bill Act (OBBBA), with inflation indexing beginning in 2027. For large exits, this can translate into millions of dollars of potential federal tax savings, before considering any state-level benefits. But the rules are precise. Missing even a single requirement can disqualify QSBS treatment entirely.
This tool helps you screen your situation before engaging tax counsel. It’s designed for venture-backed tech founders and shareholders who want a fast, informed gut-check on their QSBS position.
KEYSTONE RECOGNITION
What This Tool Checks
The QSBS eligibility navigator walks through the core statutory structural, activity, and holding-period tests, such as:
Company-Level Requirements
- C corporation status (not an S-corp, LLC, or pass-through)
- Aggregate gross asset cap: generally $50 million or less for QSBS issued on or before July 4, 2025, and $75 million or less for QSBS issued after July 4, 2025, measured immediately before and immediately after the stock issuance, with specific rules governing how assets are valued and capital raises are countedGross asset cap: under $50M (pre-OBBBA) or under $75M (post-OBBBA), measured immediately before and immediately after the stock issuance (including capital raised)
- 80% active business test: at least 80% of assets used in qualified operating activities for substantially all of the shareholder’s holding period
- Qualified trade or business (not in excluded fields like finance, law, hospitality, or professional services). Some technology-enabled businesses may still qualify if they are not primarily providing professional services and generate value from scalable products rather than personal expertise
- Asset composition limitations: significant holdings of non-operating real estate or passive investment assets can jeopardize QSBS eligibility. As a general rule, real estate not used in the active qualified business exceeding roughly 10% of asset value may be problematic, and excess cash or securities are subject to nuanced working-capital and operating-needs exceptions rather than a simple bright-line test
- No disqualifying stock redemptions or buybacks around the time of issuance. Section 1202 includes multiple anti-churning and redemption rules with specific timing windows (including look-back and look-forward periods) that can fully or partially disqualify QSBS if violated
Shareholder-Level Requirements
- Original issuance (not a secondary market purchase)
- Non-corporate holder (individual, estate, qualifying trust, or pass-through)
- Equity interest (common or preferred stock, not unexercised options or RSUs)
Holding Period & OBBBA Regime
- For stock acquired on or before July 4, 2025: a 5-year minimum holding period is required, with exclusion percentages (50%, 75%, or 100%) determined by the statutory acquisition window applicable at the time of issuance
- For stock acquired after July 4, 2025: tiered exclusions at 3 years (50%), 4 years (75%), and 5 years (100%)
The tool automatically detects which regime applies based on your acquisition date and calculates your current holding period.
What This Tool Does Not Do
This is a screening tool, not a final QSBS eligibility opinion. It won’t:
- Verify your company’s actual gross asset figures or historical compliance
- Model state tax conformity. Several states. including California, Pennsylvania, Mississippi, and Alabama do not fully conform to federal QSBS treatment, and other states apply partial or modified rules
- QSBS multiplication / stacking: transferring shares to non-grantor trusts or other eligible taxpayers to multiply the per-taxpayer QSBS exclusion, subject to strict timing, valuation, and attribution rules
- Section 1045 rollovers: if QSBS is sold before meeting the required holding period, gain may be deferred or eliminated by reinvesting proceeds into replacement QSBS within 60 days, subject to issuer-level and activity requirements
- Provide a formal QSBS attestation letter
- Replace review by qualified tax and legal counsel
- Interpret ambiguous fact patterns or apply IRS audit-level scrutiny
If any answers are “No” or “Not sure,” it doesn’t mean you are disqualified, but it is a signal to dig deeper with a professional.
Common QSBS Failure Points
Asset cap exceeded due to late-stage financing
Holding period miscalculated due to SAFEs or conversions
Redemption activity around issuance
Passive cash buildup post-Series B
Non-conforming state exposure ignored until exit
When to Look Deeper to Determine QSBS Eligibility
Some situations require advanced modeling that goes beyond this checklist:
QSBS multiplication / stacking
Gifting shares to non-grantor trusts, or family members to multiply the $10M–$15M exclusion across multiple taxpayers.
State tax planning
Founders in California or other non-conforming states may need trust structures domiciled in states like Nevada or Wyoming to capture state-level savings. State tax outcomes depend not only on trust domicile or residency, but also on sourcing rules, grantor status, and the taxpayer’s residency at the time of sale.
Section 1045 rollovers
If you're selling before hitting the minimum holding period, you may be able to defer (or potentially eliminate the gain) by reinvesting into new QSBS within 60 days.
Complex equity structures
SAFEs, earnouts, or multi-entity transactions require careful analysis of when the QSBS holding period actually begins.
Pre-exit vs. post-exit timing
The difference between selling at 4 years vs. 5 years under OBBBA rules can mean millions in additional tax savings.
At Keystone Global Partners, we work with founders up to three years before an exit, at no charge during the planning phase, to model these scenarios and structure for optimal outcomes.
Ready to Validate Your QSBS Position?
This tool provides a fast, informed starting point, but founders with $20M+ exits almost always benefit from a formal QSBS review conducted 12–36 months before liquidity.
We’ll analyze issuance dates, holding periods, asset tests, equity structures, and state exposure to determine whether advanced strategies such as QSBS stacking, trust planning, or residency optimization can materially improve your outcome.
