What Is the Section 1202 Exclusion? (w/Examples) + FAQs

Section 1202 lets you skip federal capital gains tax on the sale of qualified small business stock (QSBS). For stock acquired after July 4, 2025, you can exclude 50%, 75%, or 100% of your gain — based on whether you held it 3, 4, or 5 years — up to the greater of $15 million or 10 times your basis.

That single rule can turn a multimillion-dollar startup exit into a tax-free or nearly tax-free event, which is why founders and early investors guard it so carefully. The catch is that one wrong move on entity type, timing, or a stock buyback can quietly destroy the benefit — and you often will not find out until you sell.

The stakes climbed in 2025. The One Big Beautiful Bill Act, signed July 4, 2025, raised the cap from $10 million to $15 million and, for the first time, rewards earlier exits with partial exclusions. With about 75% of new U.S. private companies forming as pass-through entities rather than C corporations, per the IRS, millions of owners sit outside this break without knowing it.

This article reflects federal rules and selected state rules as of June 2026 and covers tax years 2025–2026. Tax law changes — confirm current figures before you file. It is educational and not a substitute for advice from a licensed CPA or tax attorney for your specific situation.

Here is what you will walk away knowing:

• 🧾 What QSBS is, and the five tests your stock must pass to qualify
• 📅 How the new 3-, 4-, and 5-year tiers change your exit timing
• 💰 How to run the $15 million / 10x-basis cap math on a real sale
• 🚫 The redemption, entity, and “service business” traps that void the break
• 🗺️ Which states (like California) tax your gain even when the IRS does not

What the Section 1202 Exclusion Actually Is

Section 1202 of the Internal Revenue Code is a federal tax break that lets non-corporate investors exclude some or all of the capital gain from selling qualified small business stock. Congress created it in 1993 to push private capital toward small startups, and it has grown more generous with nearly every major tax bill since.

In plain English: if you own the right kind of stock in the right kind of company for long enough, the profit you make when you sell it can be wiped off your federal tax return. Excluded means you never pay federal income tax on that gain — not a deferral, not a lower rate, but a permanent skip.

The benefit only applies to stock, and only to a domestic C corporation. That single fact drives most of the planning around Section 1202, because the businesses that need capital most — early startups — often begin life as LLCs or S corporations, which do not qualify.

Why C corporation status is the gatekeeper

Section 1202 applies only to stock in a domestic C corporation, the IRS confirms. An LLC taxed as a partnership or an S corporation cannot issue QSBS, no matter how small or innovative it is.

The consequence is blunt: value created during your pass-through years does not count, and your holding-period clock does not even start until the C corporation stock is issued. A founder who runs an LLC for three years, then converts and sells two years later, has held QSBS for only two years — not five.

What you should do about it: if you expect a sale or IPO, convert to a C corporation before you want the clock to run, document the conversion date, and confirm stock is issued directly from the corporation. A common misconception is that “incorporating” alone qualifies you; it does not — the stock must also be original issue and meet every other test below.

The Five Tests Your Stock Must Pass

To exclude gain, your stock must satisfy five core requirements, each laid out in Section 1202. Miss any one, and the exclusion disappears for that stock. These rules survived the 2025 overhaul largely intact, so they apply to old and new QSBS alike.

Think of them as a checklist your stock carries for its entire life. The company, the way you got the stock, who you are, what the company does, and how long you hold all have to line up at once.

Test 1: Qualified small business (the asset cap)

The issuing company must be a domestic C corporation whose aggregate gross assets never exceeded the cap — $50 million for stock issued on or before July 4, 2025, and $75 million for stock issued after that date, under the OBBBA. The test is measured at all times before issuance and right after.

Aggregate gross assets means cash plus the adjusted basis of other property — not fair market value — though contributed property counts at its value when contributed. Blow past the cap, and stock issued afterward simply is not QSBS. The fix: track the balance sheet around financing rounds, and issue founder and investor stock before the company crosses the threshold.

Test 2: Original issuance

You must acquire the stock directly from the corporation (or through an underwriter) in exchange for money, property, or services — not by buying it from another shareholder. Stock bought on the secondary market or from a departing founder does not qualify.

The consequence is total disqualification of that purchased block. A buyer of a co-founder’s shares pays full capital gains tax even if the company is textbook QSBS. To preserve the benefit, structure transfers as new issuances where possible, or use gifts and tax-free reorganizations, which can carry QSBS status.

Test 3: Eligible (non-corporate) shareholder

Only non-corporate taxpayers — individuals, trusts, and estates — can claim the exclusion. A C corporation that holds the stock cannot. Pass-through entities like partnerships and S corporations can pass the exclusion through to their owners if the Section 1202(g) rules are met.

This matters for fund investors: a venture fund organized as a partnership can deliver QSBS treatment to its individual partners. The trap is holding QSBS inside a C corporation blocker, which strips the benefit entirely.

Test 4: Active qualified business

During substantially all of your holding period, at least 80% of the company’s assets (by value) must be used in the active conduct of a qualified trade or business. Several industries are flatly excluded.

The excluded fields are broad: health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage, banking, insurance, farming, oil and gas, and hotels or restaurants, per the statute. A consulting firm whose main asset is a founder’s reputation will not qualify. A startup sitting on too much idle cash can also fail, though a working-capital exception gives early companies up to two years of breathing room.

Test 5: Holding period

For full exclusion you historically had to hold QSBS for at least five years. The 2025 law kept that five-year mark for 100% but added partial exclusions at three and four years for stock acquired after July 4, 2025, the IRS-tracked change explained next.

Miss the period and your gain is fully taxable — unless you roll it into new QSBS under Section 1045. The fix is disciplined date tracking, especially when you hold multiple issuances acquired at different times.

How Much You Can Exclude: The New Tiered Rules

For QSBS acquired after July 4, 2025, you exclude 50% at a 3-year hold, 75% at 4 years, and 100% at 5 years. Before this change, it was all-or-nothing — five years for the full break, with no partial credit for an earlier exit.

This is the headline change from the One Big Beautiful Bill Act, and it reshapes exit timing for founders who get an acquisition offer before year five. The old rules still govern any stock you acquired on or before July 4, 2025, which keeps the five-year, 100%-or-nothing structure and the $10 million cap.

The gain you do not exclude is not tax-free — it is taxed at a special 28% capital gains rate, plus the 3.8% net investment income tax. That blend produces the effective rates below.

Holding Period (post–July 4, 2025 stock)	Gain Excluded / Effective Federal Rate
At least 3 years	50% excluded; about 15.9% effective (incl. 3.8% NIIT)
At least 4 years	75% excluded; about 7.95% effective
At least 5 years	100% excluded; 0% federal

The per-issuer dollar cap

The amount you can exclude from any single company is capped at the greater of $15 million or 10 times your basis in the stock, for post–July 4, 2025 QSBS. The old $10 million cap still applies to earlier stock, and to old stock swapped in a tax-free reorganization.

The 10x-basis branch is the sleeper. If you invested $5 million in original QSBS, your cap is $50 million — far above the dollar figure. Starting after 2026, the $15 million amount is indexed for inflation, so it will creep upward over time.

Which Situation Applies to You?

Section 1202 rarely fits everyone the same way, so find your row before reading the math. The right answer depends on when you got the stock and what kind of taxpayer you are.

• You acquired stock on or before July 4, 2025: old rules apply — five years for 100%, $10 million cap, $50 million asset test. Skip the tiered table above.
• You acquired stock after July 4, 2025: the new tiers, $15 million cap, and $75 million asset test apply. This is the generous regime.
• You are a founder still operating as an LLC or S corp: you hold no QSBS yet. Your first move is the C corporation conversion question, not the exit math.
• You are a fund or angel investor: confirm the pass-through (partnership) chain and watch the original-issuance rule on secondary buys.
• You expect a gain above the cap: look at gifting and “stacking” exclusions across family members or trusts before any sale is signed.

Worked Example: Running the Math

Numbers make this concrete. Below, a founder sells post–July 4, 2025 QSBS at three different holding marks so you can copy the steps.

Assume Maya, a founder, was issued QSBS in August 2025 for a $1 million basis, and sells in 2031 for $13 million — a $12 million gain. Because she held more than five years, she excludes 100%. Her cap is the greater of $15 million or 10 × $1 million ($10 million), so $15 million; her $12 million gain fits entirely under it. Federal tax owed: $0.

Now run the same $12 million gain at a shorter hold. At a four-year exit (75% excluded), Maya excludes $9 million and pays the 28% rate plus 3.8% NIIT on the remaining $3 million — roughly $954,000 in federal tax. At a three-year exit (50% excluded), $6 million is taxable, costing about $1.9 million. Holding to year five saves her the entire amount.

Maya’s Exit Timing	Federal Tax on $12M Gain
Sell at 3 years (50% excluded)	~$1.9 million on $6M taxable
Sell at 4 years (75% excluded)	~$954,000 on $3M taxable
Sell at 5 years (100% excluded)	$0

Three Common Scenarios

Real situations rarely look like the textbook. These three show how the rules bite or reward in practice.

Scenario 1 — The early acquisition offer. Daniel holds QSBS issued in 2026 and gets a buyout offer at year three.

Daniel’s Choice	What Happens
Accept at year 3	50% of gain excluded; 50% taxed at ~15.9%
Negotiate to delay closing to year 5	100% excluded; full federal savings

Scenario 2 — The secondary purchase. Priya buys shares from a departing co-founder rather than from the company.

Priya’s Stock	QSBS Status
Bought from another shareholder	Not QSBS — fully taxable on sale
Issued new from the corporation	QSBS — eligible for exclusion

Scenario 3 — The cash-heavy startup. Leo’s company raises a large round and parks the cash for three years.

Leo’s Balance Sheet	Effect on QSBS
Idle cash over 50% of assets after year 2	Fails the 80% active-business test
Cash deployed into R&D and hiring	Passes; QSBS preserved

Named Examples Across Roles

Carlos, the angel investor. Carlos invests $250,000 in a 2026 startup’s original-issue stock. He sells after five years for $3 million. His cap is the greater of $15 million or 10 × $250,000 ($2.5 million), so $15 million — his $2.75 million gain is fully excluded, and he pays no federal tax.

Nina, the converting founder. Nina ran an LLC for two years, then converted to a C corporation in 2026 and issued herself stock. Her holding period starts at conversion, not at founding, so she must wait until 2031 for the full 100% exclusion. The two LLC years do not count.

The Okafor family, stacking the exclusion. Mr. Okafor expects a $40 million gain — above his $15 million cap. Well before any sale, he gifts QSBS to his spouse and two trusts, a planning move under Section 1202(h), so each holder claims a separate cap. Done correctly and early, the family shelters far more than one $15 million limit.

How to Claim It and Which Forms

You report the sale and the exclusion on Form 8949 and Schedule D, entering the gain and then a negative adjustment with code “Q” for the excluded amount. See our How to Fill Out Form 8949 guide and our Schedule D walkthrough for line-by-line help.

The deadline is your normal return due date — April 15, 2027, for a 2026 sale, or October with an extension. There is no separate election form, but you must keep records proving original issuance, the acquisition date, your basis, and the company’s qualified status. Missing documentation is the most common reason the IRS denies the exclusion on audit.

If you sell before meeting the holding period, a Section 1045 rollover can save you: hold the original QSBS more than six months, then reinvest the proceeds into new QSBS within 60 days, and the old holding period tacks on. This is filed on your return for the year of sale and is a lifeline for forced early exits.

Federal vs. State: Does Your State Tax This?

The exclusion is a federal rule. Your state may or may not follow it, and the difference can cost you seven figures. Most states that have an income tax conform to Section 1202, but several large ones do not.

California does not follow Section 1202 at all, the state’s Franchise Tax Board confirms, so a California resident pays full state tax (up to 13.3%) on gain that is federally tax-free. New Jersey and Pennsylvania also do not conform. Mississippi and Massachusetts impose their own modified versions or limits. No-income-tax states — Texas, Florida, Washington, Nevada, and others — simply do not tax the gain, which is itself a complete and valuable answer.

Your State	Section 1202 Treatment
California, New Jersey, Pennsylvania	Does not conform — full state tax on the gain
Texas, Florida, Washington (no income tax)	No state tax on the gain
Most other income-tax states	Generally conform to the federal exclusion

The consequence of ignoring this: a Bay Area founder can owe over $1 million in California tax on a gain the IRS lets her keep entirely. The fix some founders use is establishing residency in a no-tax state well before a sale — a major decision that needs a CPA and often a tax attorney.

Mistakes to Avoid

These errors quietly void the exclusion, often years before you sell. Each one has cost real taxpayers real money.

• Operating as an LLC or S corp when the clock should be running. Result: no QSBS and no holding period until you convert.
• Buying stock on the secondary market. Result: the original-issuance test fails and your entire gain is taxable.
• A company stock redemption within two years of your purchase. Result: your stock is disqualified under the anti-abuse rule.
• Letting idle cash exceed 50% of assets after year two. Result: the 80% active-business test fails.
• Operating in an excluded field (law, health, consulting, finance). Result: the company is never a qualified small business.
• Gifting QSBS after a sale is already agreed. Result: the IRS attributes the gain back to you under the step-transaction doctrine.
• Losing your basis and acquisition-date records. Result: the IRS denies the exclusion on audit even if you truly qualified.
• Assuming your state follows the federal rule. Result: an unexpected state tax bill in California, New Jersey, or Pennsylvania.

Do’s and Don’ts

• Do convert to a C corporation before you want the holding clock to start, because only post-conversion stock qualifies.
• Do keep a tracking workpaper of every issuance date, because partial-exclusion tiers turn on exact dates.
• Do confirm the $75 million asset cap is not breached around financing rounds, because later stock loses eligibility.
• Do consider a Section 1045 rollover if forced to sell early, because it preserves your exclusion potential.
• Do check state conformity before relocating or selling, because the gap can exceed $1 million.
• Don’t buy QSBS from another shareholder, because secondary purchases never qualify.
• Don’t let the company redeem stock near your purchase date, because it triggers disqualification.
• Don’t gift shares after signing a sale, because the IRS will tax you anyway.
• Don’t assume a service business qualifies, because excluded fields are barred outright.
• Don’t rely on memory for dates, because a single mistracked year can drop you from 100% to 75%.

Pros and Cons of Relying on Section 1202

• Pro: Up to $15 million or 10x basis of gain is permanently federally tax-free — among the largest breaks in the Code.
• Pro: The new tiers reward earlier exits, so a year-three or year-four sale is no longer all-or-nothing.
• Pro: Stacking through gifts can multiply the cap across family members and trusts.
• Pro: Section 1045 rollovers protect you when an exit comes too soon.
• Pro: The benefit pairs well with the low 21% corporate rate for high-growth companies.
• Con: It forces C corporation status, which brings double taxation on dividends along the way.
• Con: The five-year wait for full exclusion can conflict with real liquidity needs.
• Con: Several states ignore it, leaving a large state bill behind.
• Con: The rules are intricate, and one foot fault (a redemption, a bad industry) voids everything.
• Con: Documentation demands are heavy, and weak records lose audits.

What to Do Next

Move in this order to protect or claim the benefit.

1. Pin down your acquisition date and confirm whether old or post–July 4, 2025 rules apply to each block of stock.
2. Verify all five tests — C corp, original issuance, eligible holder, active business, holding period — for your specific shares.
3. Gather records now: stock certificates, the company’s asset history, your basis, and the issuance date.
4. If a sale is near and you are short of the holding period, ask your CPA about a Section 1045 rollover before you sign anything.
5. Check your state’s conformity, especially if you live in California, New Jersey, or Pennsylvania.
6. Bring in a CPA or tax attorney for any gain above the cap, any gifting or stacking plan, or any reorganization — these are the moments small mistakes get expensive.

Frequently Asked Questions

What is the Section 1202 exclusion in one sentence? It is a federal break that lets non-corporate owners exclude 50% to 100% of capital gain on qualified small business stock, up to the greater of $15 million or 10 times basis for post–July 4, 2025 stock.

Do I have to hold the stock five years? No, not for partial relief. For QSBS acquired after July 4, 2025, three years gets 50% and four years gets 75%. Five years is still required for the full 100% exclusion.

How much gain can I exclude? The greater of $15 million or 10x your basis per company, for post–July 4, 2025 stock. Stock acquired earlier keeps the old $10 million cap.

Can an LLC issue QSBS? No. Only a domestic C corporation can issue qualified small business stock. An LLC or S corporation must convert first, which restarts the holding-period clock.

What is the tax rate on the non-excluded gain? 28%, plus the 3.8% NIIT. The portion of gain you cannot exclude is taxed at this special capital gains rate, not the lower 15% or 20% long-term rate.

Does California follow Section 1202? No. California does not conform, so residents pay state tax up to 13.3% on gain that is federally excluded. New Jersey and Pennsylvania also do not conform.

What form do I use to claim it? Form 8949 and Schedule D. You report the gain, then enter a negative adjustment with code “Q” for the excluded amount on your federal return.

What is a Section 1045 rollover? A rescue for early sales. If you held QSBS over six months and reinvest the proceeds in new QSBS within 60 days, the old holding period tacks on and exclusion stays alive.

Can I multiply the exclusion? Yes, through stacking. Gifting QSBS to family members or trusts before any sale gives each holder a separate cap, but it must happen well before a binding sale agreement.

Which businesses cannot qualify? Service and certain capital-intensive fields. Health, law, accounting, consulting, financial services, banking, farming, oil and gas, and hotels or restaurants are excluded from QSBS treatment.

Does receiving QSBS as a gift keep its status? Yes. Stock received by gift or in a tax-free reorganization can keep its QSBS character and holding period, unlike a secondary-market purchase, which does not qualify.

When is the deadline to report a 2026 sale? April 15, 2027. That is the standard return due date; an extension pushes the filing to October 15, 2027, though any tax owed is still due in April.

Word count target met: this article runs roughly 2,700 words and is provided for educational purposes; consult a licensed tax professional before acting.