OBBBA and QSBS: How the New $15 Million Exclusion Can Reshape Your Exit and Your Legacy
If you’re a founder or owner of a closely held company, your business is probably the single largest line on your personal balance sheet. The One Big Beautiful Bill Act (“OBBBA”), signed into law on July 4, 2025, quietly made a powerful change to the federal rules for Qualified Small Business Stock (QSBS) under IRC §1202.
In plain English: for qualifying C-corporations, founders and early investors may now be able to exclude up to $15 million of gain per issuer from federal capital gains tax on a sale of QSBS acquired after July 4, 2025, if key requirements are met.
For the right business, this isn’t just a tax break. It’s an opportunity to design an exit that:
- Funds your retirement,
- Protects your family, and
- Builds a multi-generation legacy through intentional estate planning.
The catch? QSBS planning has to be done early, long before a buyer is at the table.
QSBS in Plain English: What It Is and Why Business Owners Care
QSBS is a federal tax incentive designed to encourage investment in certain small C-corporations. Very broadly, if you:
- Own stock in a qualifying domestic C-corporation,
- Acquired it directly from the company (not by buying shares from someone else),
- Hold it long enough, and
- Your company stays within specific size and business-type rules,
then you may be able to exclude a large portion of your capital gain when you eventually sell those shares.
Before OBBBA, that exclusion was generally capped at the greater of $10 million or 10× your basis in that company’s QSBS, and you needed to hold the stock more than five years to receive any benefit. Now, for qualifying stock acquired after July 4, 2025, the cap is $15 million or 10× basis, and you may receive a partial exclusion after three or four years, with a full exclusion after five.
For founders and early investors in high-growth businesses, that is a potentially enormous tax savings on an eventual exit, with more flexibility on timing.
Who and What Can Qualify as QSBS?
QSBS rules are detailed and technical, but at a high level, here are some of the key requirements:
- Entity type: The company must be a domestic C-corporation. LLCs, S-corps, and partnerships generally do not issue QSBS, although in some cases there may be ways to convert or restructure going forward.
- Size limits (aggregate gross assets): For QSBS issued after July 4, 2025, the company generally must not have had more than $75 million in aggregate gross assets (cash plus the adjusted basis of its other property) at the time the stock is issued. Under prior law, this cap was $50 million.
- Active business test: The company must be engaged in a qualifying active trade or business. Certain service businesses (like most professional practices, financial services, and some hospitality or personal services businesses) may not qualify.
- How stock is acquired: The shareholder must acquire the stock directly from the company in exchange for money, property, or services. Buying shares from another shareholder normally doesn’t qualify as QSBS acquisition.
- Holding period: For stock acquired after July 4, 2025, the new tiered holding periods apply:
- At least 3 years for up to a 50% exclusion,
- At least 4 years for up to a 75% exclusion, and
- More than 5 years for up to a 100% exclusion.
Older QSBS (acquired on or before July 4, 2025) generally remains subject to the pre-OBBBA rules, which typically require a more-than-five-year holding period for the full exclusion, with no partial benefits for shorter holding periods.
The bottom line: entity choice and timing matter. For some Florida business owners, remaining an LLC or S-corp still makes sense. For others, especially those eyeing a sale in the next decade, converting to or forming a C-corp and pursuing QSBS status may unlock significant tax and estate planning advantages.
How the New $15 Million Cap Works
The QSBS gain exclusion is calculated on a per-taxpayer, per-issuer basis. Under OBBBA, for qualifying QSBS issued after July 4, 2025, the cap is:
- Up to $15 million of gain per taxpayer, per issuer, or
- Up to 10× your aggregate adjusted basis in the QSBS you sell,
whichever is higher, assuming all other requirements are met.
For example, if you are a founder who invested $500,000 in a qualifying C-corp and later sell your shares for $20 million, the QSBS rules may allow you to:
- Exclude up to $15 million of gain from federal capital gains tax, and
- Pay tax only on the remaining $5 million (again, assuming all QSBS requirements are satisfied).
That’s the opportunity per taxpayer. And that’s where estate planning can amplify the benefit.
Where Estate Planning Enters the Picture
For many business owners, the goal isn’t just “pay less tax.” It’s to:
- Protect what you’ve built,
- Fund a secure retirement, and
- Transfer meaningful wealth, and values, to the next generation.
QSBS, especially under the new OBBBA rules, can be a powerful tool in that larger plan when combined with trusts and carefully timed gifts.
1. Structuring Early So Your Business Qualifies
QSBS is not something you bolt on at the last minute. To even have the option, you generally need to:
- Organize or convert the business into a C-corporation,
- Issue stock in ways that meet QSBS rules, and
- Track the company’s asset levels and business activities over time.
For Florida owners, this may mean weighing the trade-offs between C-corp status and pass-through taxation, looking closely at growth plans, and coordinating QSBS planning with broader estate, asset protection, and retirement planning.
2. Using Trusts to Multiply the QSBS Exclusion
The $15 million cap applies per taxpayer, per issuer. With careful planning, it may be possible to “multiply” or “stack” the exclusion across multiple taxpayers by:
- Creating one or more non-grantor trusts for children or other family members,
- Transferring QSBS into those trusts well before a sale, and
- Allowing each trust (and you) to have its own separate QSBS exclusion if the rules are satisfied.
In some cases, families may integrate dynasty trusts or other long-term vehicles so that QSBS-enhanced wealth can benefit multiple generations, while also providing asset protection and governance structure.
However, this is a sophisticated strategy. The IRS will look at substance over form, and there are potential risks if the planning is overly aggressive or done too close in time to a sale. It must be carefully designed, documented, and coordinated with your tax and estate planning advisors.
3. Timing Your Sale and Gifts Around Your Exit
When you sell matters. So does when you make gifts of QSBS to family members or trusts. Good planning often involves:
- Reviewing your structure and QSBS eligibility several years before a possible sale,
- Making gifts of QSBS before a definitive sale agreement is in place, and
- Coordinating QSBS planning with other strategies like lifetime gifting, charitable planning, and your overall estate tax strategy.
Handled well, the same business sale that funds your retirement can also:
- Seed trusts for your children and grandchildren,
- Support charitable causes that matter to you, and
- Fit within your broader estate plan, including any planning around the federal estate tax exemption.
Common Pitfalls and Misconceptions
QSBS is powerful, but it’s not a magic wand. Common issues include:
- Wrong entity type: An LLC or S-corp interest is not QSBS. Converting might help for future growth, but the rules are nuanced.
- Non-qualifying business activities: Certain service businesses may not qualify under QSBS rules, even if the company is a C-corp.
- Waiting too long: Trying to “back into” QSBS at the letter-of-intent stage is usually too late. Many of the requirements look at how and when the stock was originally issued and held.
- Ignoring recordkeeping: Poor documentation of stock issuances, basis, and corporate activities can make it difficult to prove QSBS eligibility later.
- Focusing only on QSBS: A great QSBS outcome doesn’t help if your overall estate plan, buy-sell arrangements, or asset protection structures are out of sync.
Is QSBS Planning Right for You?
QSBS is not appropriate for every business. It may be worth a closer look if:
- You own or are forming a growth-oriented business that could justify a C-corporation structure,
- You expect to sell or partially exit in the next 5–10 years,
- Your projected exit value could be in the millions, and
- You care about how that wealth supports your retirement, your spouse, and your heirs.
If this sounds like you, QSBS is best thought of as part of your long-term business, tax, and estate planning conversation, not a standalone tax trick.
Next Steps: Talk to Us Before the Term Sheet, Not After
At Brandon Legal Group, we work with business owners and families to align business structure, exit strategy, and estate planning so they all point in the same direction.
If you think you might sell your business in the next five to ten years, the time to talk about structure and QSBS is now, not at the closing table. That early planning window is often what separates a merely “good” outcome from a truly life-changing one for you and your family.
Let’s talk about how the new QSBS rules under OBBBA fit into your bigger picture, your business, your retirement, and your legacy.
FAQ: OBBBA, QSBS, and Estate Planning
What is QSBS in simple terms?
QSBS, or Qualified Small Business Stock, is stock in certain domestic C-corporations that meets a detailed set of rules under IRC §1202. If all requirements are met and you hold the stock long enough, you may be able to exclude a large portion of your gain from federal capital gains tax when you sell those shares.
What did OBBBA change about QSBS?
For QSBS acquired after July 4, 2025, OBBBA increased the basic per-taxpayer, per-issuer cap on the QSBS gain exclusion from $10 million to $15 million (while retaining the alternative 10× basis limit), raised the aggregate gross asset threshold from $50 million to $75 million, and introduced a tiered exclusion schedule that allows 50% of gain to be excluded after 3 years, 75% after 4 years, and up to 100% after 5 years if all other requirements are satisfied.
Can my existing LLC or S-corporation qualify for QSBS?
QSBS applies to C-corporation stock. Interests in LLCs, partnerships, or S-corps generally don’t qualify. In some cases, it may be possible to reorganize or convert your entity and have future growth occur inside a C-corp that may issue QSBS going forward, but this requires careful tax and legal analysis.
How do trusts help “multiply” the QSBS exclusion?
Because the QSBS exclusion is calculated per taxpayer and per issuer, some families create one or more non-grantor trusts and transfer QSBS into them well before a sale. Each trust may be treated as a separate taxpayer with its own QSBS cap if the rules are satisfied. This can potentially allow more than $15 million of total gain to be excluded across the family. However, this strategy is complex and must be designed carefully with professional advice to manage tax, legal, and IRS scrutiny risks.
When should I start planning around QSBS and my exit?
Ideally, you should begin discussing QSBS and structure options years before you plan to sell, not after you receive an offer. Early planning gives you time to choose the right entity structure, confirm eligibility, consider trust strategies, and coordinate QSBS with your broader estate and retirement plans.
This article is for general informational purposes only and does not constitute legal, tax, or financial advice. QSBS and OBBBA planning are highly fact-specific. You should consult with your own legal, tax, and financial advisors about your particular situation before taking any action.