Qualified Small Business Stock: Essential Insights for Founders

For startup founders, investors and early employees, timing and corporate structure can play an important role in shaping potential financial outcomes. One of the key considerations is qualified small business stock (QSBS) — shares issued by eligible C corporations that may allow significant federal tax exclusions on capital gains. Recent updates under the One Big Beautiful Bill Act (OBBBA) have introduced changes that may affect how QSBS is treated for eligible investors. The incentive is designed to promote entrepreneurship and long-term investment, but taking full advantage of it requires advance planning, accurate tracking and strict compliance with IRS rules.

What is qualified small business stock?

Qualified small business stock refers to shares in a U.S.-based C corporation that meet specific conditions under Section 1202 of the Internal Revenue Code. Most industries qualify except those expressly excluded under Section 1202. Certain types of businesses are disqualified from issuing QSBS, including companies engaged in providing professional services (e.g., health, law, accounting, banking, leasing, farming, mineral extraction, and hotel and restaurant services), among others.

This provision primarily benefits those who take on early-stage risk, such as founders, early employees granted equity and angel investors. When structured properly, QSBS may be associated with certain federal tax exclusion opportunities under current law. Because eligibility depends on both the company's characteristics and how the stock is issued and held, proactive planning can play an important role when considering equity grants or financing rounds.

Understanding QSBS eligibility

For QSBS treatment to apply, both the company and the stock itself must meet specific IRS requirements. These criteria, including holding period expectations and potential exclusion parameters, were significantly updated under the One Big Beautiful Bill Act (OBBBA), which introduced new rules for stock acquired on or after July 4, 2025. The IRS requirements can influence whether QSBS treatment may apply, so key awareness of these rules early on may be helpful.

Core Requirements (Apply to All QSBS):

Regardless of when the stock is acquired, the following conditions must be met:

• The company must be a U.S.-based C corporation.
• The stock must be originally issued (not purchased on secondary markets).
• At least 80% of the company's assets must be used in the active conduct of a qualified trade or business.

If Stock Was Acquired On or Before July 4, 2025:

• Holding period: Must be held for at least 5 years to qualify.
• Exclusion percent: Up to 100% of capital gains may be excluded, depending on the stock's issuance date.
• Gain cap: The greater of $10 million or 10× the original investment.
• Gross asset test: The company must have had no more than $50 million in gross assets at the time of issuance.

If Stock Is Acquired After July 4, 2025

• Holding period: Tiered exclusions apply
  • 3 years → 50% exclusion
  • 4 years → 75% exclusion
  • 5 years → 100% exclusion (as under prior law)
• Exclusion percent: Up to 100% of capital gains may be excluded (unchanged under both pre- and post-OBBBA rules).
• Gain cap: Increased to $15 million (indexed for inflation starting in 2027) or 10× the original investment, whichever is greater.
• Gross asset test: The company must have no more than $75 million in gross assets at the time of issuance.

Under the expanded rules, founders may want to be aware of how company structure and early fundraising decisions could affect potential QSBS eligibility. However, the old rules still apply for stock acquired before July 4, 2025. Founders, employees and investors who hold shares acquired on or before July 4, 2025, remain subject to the legacy requirements that determine whether QSBS treatment may apply.

Exploring the Potential Value of QSBS

The standout feature of QSBS is the potential to exclude up to 100% of federal capital gains tax on eligible stock sales. For stock acquired on or after July 4, 2025, this applies to the greater of:

• Up to $15 million in gains (for stock acquired on or after July 4, 2025)
• 10 times what you originally paid for the stock

As a hypothetical scenario, consider an investor who acquires QSBS for $1 million, holds it for more than five years, and later sells it for $12 million. Under current federal rules, the maximum potential exclusion for QSBS acquired on or after July 5, 2025, is the greater of $15 million or 10 times the investor's basis (which would equal $10 million in this scenario). Because the gain is $11 million — below the $15 million cap — the full $11 million could fall within the maximum exclusion amount, assuming all eligibility requirements are satisfied. The actual federal tax outcome would depend on individual circumstances and the tax laws in effect at the time of sale.

This type of tax treatment can be transformative for founders, enabling them to reinvest in new ventures or allocate proceeds to philanthropic or family wealth planning.

Typical paths to acquiring QSBS

Founders and early stage employees often receive QSBS when a company is first incorporated, and stock is issued at original issuance. The way equity grants or purchases are structured can influence how they are treated under QSBS rules. Several factors may be relevant, including:

• C‑corporation structure: QSBS applies only to stock issued by C corporations under Section 1202. Many startups opt for Delaware C‑corp structures for general corporate‑governance reasons.
• Timing of stock issuance: QSBS typically applies to stock acquired at original issuance. Early‑stage issuances are common and may affect how QSBS rules apply.
• Documentation: Records such as board approvals, stock purchase agreements, stock certificates, cap tables, and proof of payment can help establish the details of issuance.
• Holding‑period considerations: Understanding how the five‑year holding period is calculated — and maintaining records of vesting or transfer events — can be important when evaluating potential QSBS treatment.
• Corporate and financial records: Information about the company's asset levels and business activity can be relevant to determining whether QSBS criteria are met, including the $75 million asset test for stock issued after July 4, 2025.

Angel investors and venture capitalists may also acquire QSBS through priced equity rounds if the issuing company and the stock meet the applicable requirements.

Understanding How the QSBS Exclusion May Apply at Sale

When QSBS eligible stock is sold, documentation and record keeping often play an important role in determining how the federal exclusion provisions may apply. The IRS generally requires gains from stock sales to be reported on forms such as Form 8949 and Schedule D, depending on individual circumstances and applicable rules.

• Several considerations may be relevant when evaluating the potential application of QSBS exclusion provisions: Whether the issuing company met the qualified small business criteria throughout the applicable holding period, including any updated asset threshold requirements.
• The availability of documentation showing when and how stock was acquired, as QSBS rules apply at issuance and may apply at the time of sale. Whether certain transactions — such as Section 1045 rollovers — may offer deferral opportunities under IRS guidelines and timing requirements.
• Engaging your Private Bank Relationship Manager or Private Wealth Advisor, along with qualified tax and legal professionals, may be helpful in understanding documentation, elections and broader planning considerations.

Additional QSBS Considerations

Beyond the core federal provisions, several factors — including IRS limits, state level rules, and certain trust or structural approaches — can influence how QSBS treatment may apply:

• Limits to be aware of: QSBS exclusion provisions operate on a per issuer, per taxpayer basis, and recent updates increased the potential exclusion cap to up to $15 million for stock acquired on or after July 5, 2025. Outcomes vary depending on individual circumstances and IRS rules.
• State differences: QSBS is governed at the federal level, and not all states follow the federal framework. In states such as California, QSBS treatment differs, which can affect an investor's overall tax picture.
• Advanced planning strategies: Advanced planning methods may be available for structuring QSBS holdings across different entities or beneficiaries. These approaches are intricate and should be evaluated and implemented with support from experienced advisors.

Understanding the Potential of QSBS

QSBS can offer meaningful benefits when the foundational planning is done early. It's not only solely about tax treatment- it's about structuring your business with the future in mind.

Citizens Private Bank supports founders as they navigate the complexities of their financial journey, including considerations related to QSBS within the broader planning landscape. Whether you're raising your first round or preparing for a future exit, our team is here to help you stay informed and supported throughout every stage of growth.