QSBS, Section 1202 of the U.S. Tax Code | Updated for the One Big Beautiful Bill Act (2025)
Disclaimer: This article is for informational and educational purposes only and does not constitute legal or tax advice. Tax laws are complex and individual circumstances vary. Please consult a qualified tax attorney or CPA before making investment or tax planning decisions.
You built something real. You deserve to keep what you earned.
Building a company has an actual costs – and it isn’t just money.
It’s the Sunday nights you spent staring at spreadsheets instead of being present with your family. The salary you didn’t take so you could make payroll. The relationships that frayed under the weight of relentless pressure. The version of yourself you had to become just to survive the early years.
And then, against the odds, it works. A term sheet. An acquisition. An IPO. Suddenly there’s a number that your parents never dreamed of – the kind of number that could pay for your children’s education, fund their own startups someday, and create a foundation that lasts for generations.
Then you call your accountant.
And you learn that somewhere between 30% and 40% of it – sometimes more – goes to taxes.
That moment hits differently than most people expect. Not because founders don’t know taxes exist. But because the gap between what you built and what you get to keep can feel genuinely disorienting. Unjust, even. You took the risk. You did the work. And now a significant piece of the outcome belongs to someone else.
Here’s what most founders don’t know until it’s too late: there is a legal, IRS-sanctioned way to exclude all of that federal gain from taxation. Not defer it. Not reduce it a little. Exclude it – entirely.
That’s Qualified Small Business Stock (QSBS) under Section 1202 of the Internal Revenue Code. And thanks to the One Big Beautiful Bill Act (OBBBA), signed into law on July 4, 2025, it just became the most powerful wealth-preservation tool in the startup ecosystem.
This guide will walk you through everything – clearly, honestly, and with enough detail to have a real conversation with your tax advisor.
Table of Contents
- What Is Qualified Small Business Stock (QSBS)?
- How the Section 1202 Gain Exclusion Works
- What Changed: The One Big Beautiful Bill Act (2025)
- Before vs. After: QSBS Rules at a Glance
- Who Qualifies? Eligibility Requirements
- Industries That Do – and Don’t – Qualify
- Generational Wealth: QSBS Stacking Strategies
- QSBS Planning Checklist
- Frequently Asked Questions
- The Bottom Line
What Is Qualified Small Business Stock (QSBS)?
Qualified Small Business Stock (QSBS) is stock in a domestic C corporation that meets specific criteria under Section 1202 of the Internal Revenue Code. When you sell QSBS you’ve held for the required period, you can exclude a substantial portion – potentially all – of your capital gain from federal income tax.
Congress created the QSBS exclusion to do something simple and sensible: make it more rewarding to take the risk of starting or backing a small business. The logic is sound. The economy benefits when talented, driven people pour their energy into building new companies. Section 1202 makes that risk more worth taking by offering extraordinary tax relief at the moment a company succeeds.
It rewards exactly the kind of behavior that most people agree society should reward: building something new, creating jobs, taking personal financial risk, and adding value where none existed before.
The core benefit
At its fullest, Section 1202 lets non-corporate shareholders – individuals, trusts, and estates — exclude 100% of capital gains from federal income tax on the sale of qualifying stock, up to $15 million per taxpayer, per company (for stock issued after July 4, 2025).
That means zero federal capital gains tax. Zero net investment income tax (NIIT). No Alternative Minimum Tax (AMT) impact on the excluded gain.
On a $15 million gain, that’s potentially more than $3.5 million in federal taxes saved — for a single taxpayer. For a family using advanced planning strategies, that number can multiply several times over.
How the Section 1202 Gain Exclusion Works
The QSBS exclusion has three moving parts: the exclusion percentage, the dollar cap, and the holding period. Understanding how they interact gives you a clearer picture of what’s at stake – and how to plan for it.
Exclusion percentages and holding periods
For stock issued after July 4, 2025, the exclusion follows a graduated schedule based on how long you hold the stock:
- Hold for 3+ years: Exclude 50% of qualifying gain
- Hold for 4+ years: Exclude 75% of qualifying gain
- Hold for 5+ years: Exclude 100% of qualifying gain
For stock issued on or before July 4, 2025, only the 100% exclusion is available, and only after a full five-year hold.
The dollar cap: how much can you exclude?
The exclusion is capped at the greater of:
- $15 million per taxpayer, per issuing company (inflation-indexed starting in 2027), or
- 10 times your aggregate adjusted basis in the stock
The 10x basis alternative matters most for founders. If you received founder shares worth $500,000 at issuance and the company later exits at a high valuation, your exclusion ceiling could reach $5 million under the basis rule – or $15 million under the dollar cap, whichever is larger.
AMT and net investment income tax (NIIT)
One of the most underappreciated features of QSBS: gains excluded under Section 1202 are not subject to the federal AMT and are not included in net investment income for purposes of the 3.8% NIIT.
This distinction matters because the headline tax rate and your actual effective rate can look very different once AMT and NIIT enter the picture. QSBS neutralizes both.
Example: A founder sells QSBS with $12 million in gains after a 5-year hold. With a 100% exclusion, she owes $0 in federal capital gains tax, $0 in AMT on the excluded gain, and $0 in NIIT – saving over $2.8 million compared to a non-QSBS exit.
State tax considerations
QSBS is a federal exclusion. Many states conform to the federal treatment – but some, most notably California, do not. California taxes QSBS gains in full at the state level, currently up to 13.3%.
For high-value exits, your state of domicile can cost or save you millions. This makes residency planning a critical conversation to have well before any liquidity event – and one that requires its own legal and practical guidance.
What Changed: The One Big Beautiful Bill Act (2025)
The One Big Beautiful Bill Act (OBBBA) was signed into law on July 4, 2025. It represents the most significant expansion of QSBS benefits in years – and for founders and investors whose companies are still growing, the timing of these changes could shift the calculus on everything from fundraising structure to exit timing.
These enhanced rules apply to stock issued after the enactment date.
Change 1: Exclusion cap rises from $10M to $15M
The previous per-taxpayer, per-issuer cap was $10 million (or 10x basis). The OBBBA raises that to $15 million, with inflation indexing beginning in 2027.
What this means in practice: For a single investor in a single company, the maximum federal tax benefit just increased by 50%. On a $15 million gain at a combined 23.8% rate (20% capital gains + 3.8% NIIT), the OBBBA adds roughly $1.5 million in additional savings over the prior rules.
Change 2: Graduated exclusions for shorter holds
Previously, QSBS was all-or-nothing: you held for five years and got 100%, or you sold early and got nothing. That binary choice put founders in a difficult position when an acquisition offer arrived at year three or four.
The OBBBA changed this with a graduated schedule:
- 3-year hold: 50% exclusion
- 4-year hold: 75% exclusion
- 5-year hold: 100% exclusion
What this means in practice: If an acquisition offer arrives after a three-year hold, you’re not choosing between the deal and your tax benefit. You can take the exit and still exclude half your gain. That flexibility has real value – both financially and emotionally.
Change 3: The gross asset threshold rises from $50M to $75M
To qualify as a QSBS-issuing company, the corporation’s gross assets must not exceed a statutory threshold at the time of stock issuance. The OBBBA raises this from $50 million to $75 million, with inflation indexing starting in 2027.
What this means in practice: Companies that had grown beyond the old threshold can now issue QSBS in later financing rounds. More companies qualify. More employees and investors can access these benefits.
Before vs. After: QSBS Rules at a Glance
| Feature | Pre-OBBBA Rules | Post-OBBBA Rules (Stock Issued After July 4, 2025) |
| Exclusion at 3-Year Hold | None | 50% |
| Exclusion at 4-Year Hold | None | 75% |
| Exclusion at 5-Year Hold | 100% | 100% |
| Per-Taxpayer Dollar Cap | $10 million | $15 million (inflation-indexed after 2026) |
| 10x Basis Alternative | Yes | Yes |
| Gross Asset Threshold | $50 million | $75 million (inflation-indexed after 2026) |
| AMT on Excluded Gain | No | No |
| NIIT on Excluded Gain | No | No |
Note: QSBS issued on or before July 4, 2025 is governed by the pre-OBBBA rules.
Who Qualifies? Eligibility Requirements
Both the company issuing the stock and the shareholders receiving it must meet specific requirements for QSBS treatment to apply. Here’s what that looks like at each level.
The company must be a domestic C corporation
Only stock issued by a domestic C corporation qualifies for QSBS treatment. S corporations, partnerships, and LLCs taxed as partnerships do not qualify – though an LLC that has elected C corporation tax treatment may be eligible. Most venture-backed startups are structured as C corporations from inception, often for this reason among others.
The company must meet the gross asset test
At the time of stock issuance (and immediately after), the corporation’s aggregate gross assets – including cash and property contributed – must not exceed $75 million (for stock issued after July 4, 2025). Assets are measured at original cost, not fair market value.
The company must be an active business
At least 80% of the fair market value of the corporation’s assets must be used in the active conduct of one or more qualified trades or businesses. A holding company, shell entity, or primarily real estate or investment vehicle does not meet this test.
Shareholders must be non-corporate
The Section 1202 exclusion is available to individuals, trusts, and estates — not corporations. This makes QSBS particularly valuable for founders and employees who hold stock personally, and for estate planning structures like non-grantor trusts.
The stock must be original issue
QSBS must be acquired at original issuance from the corporation – not purchased on the secondary market. The shareholder must have received the stock in exchange for money, property, or services rendered.
Industries That Do – and Don’t – Qualify
Not every company qualifies under Section 1202. Congress intentionally excluded certain professional service industries. If your company operates in one of those fields, QSBS is likely not available – and a conversation with a tax professional about alternative strategies is worth having.
Industries that generally qualify
- Technology and software
- Manufacturing
- Retail and e-commerce
- Wholesale trade
- Agriculture and food production
- Transportation and logistics
- Most scientific research and development companies
- Many consumer product companies
Industries that are excluded
The following fields do not qualify for the QSBS exclusion, regardless of company size or structure:
- Health and medical services
- Law firms and legal services
- Engineering (in certain configurations)
- Architecture
- Accounting and tax advisory services
- Actuarial science
- Performing arts
- Consulting services
- Athletics and sports
- Financial services and brokerage
- Any trade or business where the principal asset is the reputation or skill of employees
If your company operates in one of these sectors, QSBS is likely unavailable. That’s a hard reality worth knowing early – rather than discovering it on the eve of an exit.
Generational Wealth: QSBS Stacking Strategies
This is where QSBS transforms from a personal tax break into something more profound: a generational wealth strategy.
The founding generation rarely thinks about this in the early years. You’re too focused on survival. But the families who end up preserving the most wealth aren’t necessarily the ones who built the biggest companies – they’re the ones who planned far enough in advance to protect what they built.
Through a technique known as “stacking,” families can multiply the Section 1202 exclusion across multiple taxpayers, dramatically increasing the total amount shielded from taxation at a single exit.
How stacking works
The Section 1202 exclusion limit applies per taxpayer, per issuing company. Each individual shareholder has their own cap. When QSBS is gifted to another person or entity before a sale, the recipient receives their own exclusion – and critically, the holding period “tacks,” meaning it carries over from the donor. A recipient counts the donor’s ownership time toward their own five-year requirement. For a detailed breakdown of how tacking works in practice, the ACTEC Foundation’s estate planning overview is worth reading.
A family stacking example
A founder has held QSBS for more than five years. Before any sale agreement closes, she gifts shares to family members. Each recipient – her spouse, adult children, and family trusts – receives their own $15 million federal exclusion:
- Founder: $15 million excluded
- Spouse: $15 million excluded
- Child 1: $15 million excluded
- Child 2: $15 million excluded
- Non-Grantor Trust: $15 million excluded
That’s $75 million in federally excluded gains from a single company — all legal, all documented, all through advance planning.
Critical rules to observe
Stacking requires careful execution – ideally years before any liquidity event. Key guardrails:
- Gifts must occur before any agreement to sell the stock is reached. Gifting after a letter of intent is signed may be challenged by the IRS as a transaction on the eve of sale.
- Recipients must be non-corporate. Gifts to C corporations do not receive a new exclusion.
- Non-grantor trusts can be powerful vehicles, particularly when sited in income-tax-free states (Nevada, South Dakota, Wyoming, Texas), allowing the trust’s share of the exclusion to avoid both federal and state tax.
- Gifting triggers its own planning considerations – gift tax, transfer tax, and trust structuring all require professional guidance from attorneys experienced in this intersection.
The generational dimension
Beyond the immediate tax benefit, QSBS stacking represents something worth pausing to appreciate: the ability to transfer wealth across generations with minimal tax friction.
Children who receive gifted QSBS shares before a sale can exclude millions from taxation. Those funds, reinvested and compounded, can fund their own education, their own ventures, and eventually their children’s futures. When the next generation builds their own startups, Section 1202 is available to them too.
This is the compounding effect of intentional planning – and it’s the difference between building wealth and building a legacy.
QSBS Planning Checklist
Bring this to your next meeting with your tax attorney or CPA. It won’t replace their advice – but it will make the conversation more productive.
Company-level verification
- [ ] Is the company structured as a domestic C corporation?
- [ ] Did gross assets not exceed the threshold at the time of stock issuance? ($50M for pre-OBBBA stock; $75M for post-OBBBA stock)
- [ ] Does the company operate in a qualified trade or business – not an excluded industry?
- [ ] Is at least 80% of asset value actively used in business operations?
Shareholder-level verification
- [ ] Was stock received at original issuance – not via secondary purchase?
- [ ] Are you a non-corporate taxpayer (individual, trust, or estate)?
- [ ] Have you tracked your holding period from the original issuance date?
- [ ] Do you have documentation of your adjusted cost basis?
Pre-exit planning
- [ ] Have you discussed QSBS stacking with a qualified tax attorney – ideally years before any exit?
- [ ] Have you identified family members or trusts who could receive gifted shares?
- [ ] Has gifting been completed before any LOI or sale agreement is signed?
- [ ] Have you reviewed state tax implications in your state of residence?
- [ ] Have you considered trust siting in income-tax-free states?
- [ ] Is your holding period tracking accurate and fully documented?
Frequently Asked Questions
The Bottom Line
You didn’t build your company looking for tax breaks. You built it because you believed in something – an idea, a market, a problem worth solving, a future worth creating.
The QSBS exclusion exists because Congress recognized that belief deserves to be rewarded. Section 1202 isn’t a loophole for the well-connected. It’s a written invitation – embedded in the tax code – for founders, early employees, and investors to take risk, build something real, and keep more of what they create.
The One Big Beautiful Bill Act made that invitation more accessible than ever. Shorter holding periods, a higher exclusion cap, and a broader company eligibility threshold mean that more people, at more stages of the startup journey, can benefit.
But here is the honest truth: QSBS does not work passively. It requires the right corporate structure from the very beginning. Meticulous documentation. Gifting strategies executed well before any sale agreement. And guidance from professionals who understand both tax law and the realities of startup finance.
The families who benefit most from QSBS are not necessarily the ones who built the largest companies. They’re the ones who planned early – and who understood that the wealth they built was worth protecting with the same intensity they used to build it.
The code is on your side. Plan accordingly.
Talk to a qualified tax attorney or CPA who specializes in QSBS planning before your next liquidity event. The best time to start planning is the day you receive your equity. The second best time is today.
Sources and Further Reading
- One Big Beautiful Bill Act Increases Tax Benefits for QSBS – Holland & Knight
- QSBS Gets a Makeover: What Tax Pros Need to Know – The Tax Adviser
- The OBBBA: How New QSBS Rules Affect Startups and Investors – Baker Donelson
- QSBS Just Got a Major Upgrade – Davis Wright Tremaine
- QSBS Regime Expanded Under One Big Beautiful Bill Act – Greenberg Traurig
- Explaining Enhanced Section 1202 Benefits – Grant Thornton
- Changes to Section 1202 QSBS – Baker Tilly
- QSBS Guide 2026: Section 1202 Rules After OBBBA – SDO CPA
- One Big Beautiful Bill Act Doubles Down on QSBS – Frost Brown Todd
- QSBS and Section 1202 – U.S. Bank Wealth Management
- Estate Planning Under the OBBBA: QSBS – ACTEC Foundation
- Section 1202 Qualified Small Business Stock – Cooley LLP Cheat Sheet
© 2026 | This content is for educational purposes only and does not constitute legal, tax, or financial advice. Individual tax situations vary. Consult a licensed tax professional before making decisions based on this material.