The New QSBS Rules Could Make My Startup Sale Tax-Free. Do I Qualify?
You’re building your startup with one goal in mind.
One day, you’ll raise additional funding, grow the business, and eventually sell your shares.
When that exit finally arrives, one question matters more than almost any other.
How much of your gain will you actually keep after taxes?
For many founders and early investors, Qualified Small Business Stock (QSBS) may significantly reduce or even eliminate federal capital gains tax. Recent changes have expanded these benefits, but they do not apply to every shareholder. Understanding which rules apply to your stock can help you make better decisions long before an acquisition or IPO is on the horizon.
What Changed Under the New QSBS Rules?
The One Big Beautiful Bill Act (OBBBA), signed on July 4, 2025, introduced important changes to Section 1202, which governs Qualified Small Business Stock.
The most important point is that these new benefits generally apply only to stock issued after July 4, 2025.
Shares issued before that date continue to follow the previous QSBS rules.
Before planning for a tax-free exit, founders should first determine exactly when each block of stock was issued.
The Holding Period Is Now More Flexible
Previously, QSBS generally required shareholders to hold qualifying stock for five years before receiving the full federal gain exclusion.
The updated rules now provide a tiered structure for stock issued after July 4, 2025:
- 50% exclusion after a 3-year holding period.
- 75% exclusion after a 4-year holding period.
- 100% exclusion after a 5-year holding period.
This change may benefit founders who exit before reaching the traditional five-year holding period while still rewarding longer-term ownership.
The Gain Exclusion Limit Increased
The new legislation also expanded the maximum gain eligible for exclusion.
For qualifying stock issued after July 4, 2025, the per-taxpayer exclusion increased from $10 million to $15 million, with future inflation adjustments beginning after 2026.
For founders involved in larger exits, this higher limit may significantly increase the amount of gain excluded from federal tax.
More Companies May Now Qualify
QSBS eligibility depends partly on the issuing company’s size when the shares are issued.
Previously, the company generally needed gross assets of $50 million or less.
The updated law increases that threshold to $75 million for qualifying post-July 4, 2025 stock.
As a result, more venture-backed startups may now qualify for QSBS treatment during later funding stages than under the previous rules.
Not Every Startup Qualifies for QSBS
Receiving QSBS treatment depends on more than simply owning startup stock. To qualify, the company generally must:
- Be a domestic C corporation.
- Use at least 80% of its assets in an active qualifying trade or business.
- Avoid operating in excluded industries such as many service businesses, finance, farming, hospitality, and certain natural resource businesses.
Companies organized as LLCs or S corporations generally do not qualify under these rules.
Because several technical requirements apply, founders should review eligibility before assuming the exclusion will be available.
Track Your Stock From the Beginning
QSBS planning begins when the shares are issued, not when the company is sold. Founders should maintain accurate records showing:
- The issuance date for every stock grant.
- The company’s gross assets when the shares were issued.
- The company’s legal entity structure.
- The expected holding period before a potential exit.
Keeping this information organized makes future tax planning much easier and helps reduce uncertainty during an acquisition or IPO.
Common Founder Mistakes
- Assuming the new QSBS rules automatically apply to older shares: The expanded benefits generally apply only to stock issued after July 4, 2025. Earlier shares continue to follow the previous Section 1202 rules.
- Ignoring the C corporation and active business requirements: QSBS eligibility depends on meeting several statutory requirements, not simply operating a startup or raising venture capital.
- Selling shares before reaching the desired holding period: The new tiered exclusions reward longer holding periods, so the timing of an exit may significantly affect the available tax benefit.
- Failing to document stock issuance dates and company eligibility: Accurate records become essential years later when determining whether shares qualify for the Section 1202 exclusion.
10-Minute QSBS Self Check
- Do I know exactly when each block of my stock was issued?
- Were my shares issued before or after July 4, 2025?
- Is the issuing company a domestic C corporation?
- Did the company satisfy the applicable gross asset limit when my shares were issued?
- Does the company operate a qualifying active business?
- Will my planned exit occur after I reach the applicable holding period?
If several answers remain unclear, you are not ready to count on a tax-free exit yet.
Bottom Line
The updated QSBS rules create valuable tax planning opportunities for founders and early investors, particularly for stock issued after July 4, 2025. The expanded gain exclusion, higher asset threshold, and tiered holding periods may allow more startups and shareholders to benefit from Section 1202. However, these advantages depend on meeting several technical requirements, making early planning and careful recordkeeping essential.
Wondering Whether Your Startup Stock Qualifies for the New QSBS Rules?
Schedule a free 30-minute call with our team to discuss your questions and concerns.
Book here: https://calendly.com/primumlaw/30min