What Is the New QSBS Holding Period? (w/Examples) + FAQs

This article reflects federal rules as of June 2026 and covers tax years 2025 and 2026. It also notes major state rules (California, New Jersey, Pennsylvania). Tax law changes — confirm current figures with a licensed professional before you file or sell.

Quick Answer

The new QSBS holding period is tiered. For stock acquired after July 4, 2025, you exclude 50% of your gain at 3 years, 75% at 4 years, and 100% at 5 years. Older stock still needs the full 5 years for any exclusion.

That tiered schedule, created by the One Big Beautiful Bill Act, rewrites a 32-year-old “all-or-nothing” rule under Internal Revenue Code Section 1202. Before this change, you got zero exclusion if you sold even one day before the five-year mark. Now an early exit can still save real money — but the partial tiers come with a tax cost most articles skip, and the included part of your gain is taxed at a steep 28% federal rate plus a 3.8% surtax.

The stakes are high and the timing is exact. The graduated rule applies only to stock acquired after July 4, 2025, and recent SEC and Angel Capital data show angel and venture investors back well over 60,000 U.S. startups a year, many of them C corporations that can issue this stock. Get the acquisition date or the holding-period math wrong, and you can hand the IRS hundreds of thousands of dollars you did not owe.

Here is what you will learn:

📅 The exact 3-, 4-, and 5-year tiers and the effective tax rate at each step.
💰 The higher $15 million exclusion cap and $75 million gross-asset limit, and who they help.
🧮 Fully worked dollar examples for a year-3, year-4, and year-5 sale of the same stock.
🏛️ Whether your state — like California or New Jersey — taxes the gain anyway.
⚠️ The seven costliest mistakes that quietly destroy a QSBS exclusion.

QSBS in Plain English

Qualified Small Business Stock (QSBS) is stock in a small U.S. C corporation that lets you skip federal tax on a large chunk of your profit when you sell. The benefit lives in Section 1202 of the tax code, which Congress wrote in 1993 to push private money into young companies. In short, you take the risk of funding a startup, and the government waives tax on the reward if the bet pays off and you hold long enough.

The exclusion is generous. You can exclude the greater of a fixed dollar cap or 10 times your cost in the stock, per company. For most founders and early employees who pay almost nothing for their shares, the fixed cap is what matters. For investors who write large checks, the 10-times-basis figure often matters more.

QSBS is not a small niche. It quietly shapes how startups choose their legal structure, when they convert to a C corporation, and when founders and investors decide to sell. A wrong move on any of these can turn a tax-free exit into a fully taxable one. That is why the holding-period change is such a big deal — it rewrites the single most important date in the entire strategy.

What “holding period” means here

Your holding period is how long you own the stock before you sell it, measured from the day after you acquire it. Under Section 1202, this clock decides how much gain you exclude. Miss the mark by a day under the old rule, and you owed full tax on everything.

The consequence of misreading this clock is direct and expensive. Sell too early and you convert a tax-free gain into one taxed at up to 23.8% (or 31.8% on the special QSBS rate, explained below). The fix is simple but unforgiving: track your acquisition date to the day, and never sell on a guess about which tier you are in.

The Old Rule vs. The New Rule

Before the OBBBA, signed July 4, 2025, QSBS was all-or-nothing. You held for more than five years and excluded up to 100% of your gain, or you held for less and excluded nothing. There was no partial credit, no consolation prize for a four-year exit.

The new law keeps the old rule alive for older stock and layers a friendlier schedule on top for new stock. The dividing line is the acquisition date, not the sale date. This split means two investors selling the same week can face completely different rules.

The table below shows the core difference between the two regimes.

When You Acquired the Stock	How Your Gain Is Excluded
On or before July 4, 2025	Old rule: 0% exclusion before 5 years, up to 100% at more than 5 years, capped at the greater of $10 million or 10x basis (per Mintz)
After July 4, 2025	New tiered rule: 50% at 3 years, 75% at 4 years, 100% at 5 years, capped at the greater of $15 million or 10x basis (per Nelson Mullins)

Why the acquisition date controls everything

The new benefits apply only to QSBS issued or acquired after July 4, 2025, and to tax years beginning after that date, as Mintz confirms. Stock you bought on July 4, 2025 or earlier stays under the old five-year, $10 million world even if you sell it in 2030.

The consequence is that recordkeeping now decides your tax bill. If you cannot prove your acquisition date, the IRS can default you to the worse rule. A common misconception is that selling after the law passed pulls your old stock into the new rules — it does not. What you should do: pull your stock purchase agreement, grant notice, or Form 3921 exercise records now, and confirm the exact day you acquired each block of shares.

The New Tiered Holding Period, Tier by Tier

For stock acquired after July 4, 2025, the exclusion grows with time, as Nelson Mullins lays out. The longer you hold, the bigger the slice of gain that escapes federal tax. Each tier carries its own effective tax rate, which is the part most readers miss.

The catch is in the taxed portion. The gain that is not excluded is taxed under Section 1202 at a flat 28% federal rate, plus the 3.8% net investment income tax, for 31.8% on that slice — not the usual 23.8% long-term rate. So the partial tiers are useful, but they are not a free lunch.

Holding Period	What Happens to Your Gain
At least 3 years	50% excluded; the other 50% taxed at a 31.8% rate, for a ~15.9% effective federal rate on the whole gain (per Mintz)
At least 4 years	75% excluded; the other 25% taxed at 31.8%, for a ~7.95% effective federal rate (per Mintz)
At least 5 years	100% excluded; 0% federal tax on the gain, up to the cap

The 3-year tier (50% exclusion)

At three years you exclude half your gain. The other half is taxed at the 28% Section 1202 rate plus the 3.8% surtax, so your blended federal rate on the full gain lands near 15.9%, as Mintz explains. That is still better than a fully taxable sale.

The consequence of grabbing this tier too eagerly is that you leave the larger benefit on the table. A misconception is that 15.9% is a “discount” worth taking — but waiting two more years can drop you to 0%. What to do: only sell at year three if you have a real reason (a forced exit, a buyer, or a need for cash), not just because the tier exists.

The 4-year tier (75% exclusion)

At four years you exclude three-quarters of your gain, and only 25% is taxed at the 31.8% rate, for roughly a 7.95% effective federal rate, per Mintz. This is the “almost there” tier.

The consequence of selling here instead of waiting one more year is a tax bill on a quarter of your gain that would have been zero. The common mistake is selling in month 49 to “lock in” a deal when the buyer would wait 11 more months. What to do: if you are inside the fourth year, ask whether the sale can close just past the five-year date.

The 5-year tier (100% exclusion)

At five years you reach the full prize: 100% of your gain is excluded, up to the cap, with no federal tax and no alternative minimum tax preference, as Mintz notes. This is the target for almost every holder who can wait.

The consequence of just missing it is brutal — one day short drops you to the 75% tier and a 7.95% effective rate on a multimillion-dollar gain. The misconception is that “about five years” is close enough; the statute counts to the day. What to do: confirm the exact five-year anniversary with your tax advisor and, if needed, delay closing past it.

The Two Companion Changes You Cannot Ignore

The holding period grabs headlines, but two other OBBBA changes decide whether you qualify at all and how much you can shield. Both apply to stock acquired after July 4, 2025, as Baker Tilly reports. Ignore them and the new holding period does you no good.

These changes widen the door. More companies now fit the definition, and each holder can protect more money. Together with the tiers, they make QSBS the most powerful it has ever been.

The new $15 million exclusion cap

For new stock, the per-issuer exclusion cap rises from $10 million to $15 million, with inflation adjustments starting in 2027, per Nelson Mullins. You still exclude the greater of that cap or 10 times your basis.

The consequence of mixing old and new stock is a split cap: pre-July 5, 2025 stock keeps the $10 million ceiling even if sold later, as Mintz warns. A misconception is that the higher cap applies to all your shares — it does not. What to do: track each block of stock separately by acquisition date and cap.

The new $75 million gross-asset limit

A company qualifies as a “qualified small business” only if its gross assets never exceed a ceiling before and right after it issues the stock. The OBBBA raises that ceiling from $50 million to $75 million, as Grant Thornton explains, indexed for inflation from 2027.

The consequence is that bigger, later-stage startups can now issue QSBS that once could not. A company that already crossed $50 million may issue fresh QSBS from July 5, 2025 until it hits $75 million, per Mintz. What to do: ask the company for a written QSBS attestation at the time you buy, confirming it was under the limit.

Which Situation Applies to You?

QSBS is never one-size-fits-all. The right move depends on who you are, when you got your stock, and where you live. Use the branches below to find your path before you read the examples.

You are a founder with pre-July 5, 2025 stock: You live under the old five-year, $10 million rule. Focus on hitting the full five years; partial tiers do not apply to you.
You are a founder or employee with post-July 4, 2025 stock: The tiered rule and $15 million cap apply. Track your acquisition date and weigh an early sale against the 5-year zero-tax target.
You are an angel or VC investor: Compare the $15 million cap against 10x your basis; large checks often make the 10x figure the bigger number.
You live in California or New Jersey: Your state likely taxes the gain even when the IRS does not. Plan for a state bill regardless of the federal tier.
Your company is mid-stage (over $50 million in assets): Ask whether new shares issued after July 4, 2025 can still qualify under the $75 million limit.

Worked Examples: The Same Stock at Year 3, 4, and 5

Numbers make this real. Assume you acquire QSBS in August 2025 for $100,000 and sell when it is worth $5,100,000, for a $5,000,000 gain that sits under the $15 million cap. The only thing that changes across the three cases is how long you hold.

The math below uses the Section 1202 rate of 28% plus the 3.8% net investment income tax (31.8%) on the included gain, the rates Mintz cites. These are federal figures only; your state may add its own tax.

Sell at 3 years (50% exclusion)

You exclude $2,500,000 and pay federal tax on $2,500,000. At 31.8%, that is $795,000 in federal tax, an effective 15.9% rate on the full $5,000,000 gain. You keep about $4,205,000 before state tax.

The consequence of stopping here is a near-$795,000 federal bill that would shrink to zero in two more years. The lesson: the 3-year tier is a backstop for forced exits, not a goal. What to do: sell at year three only if you cannot wait, then set aside cash for the tax.

Sell at 4 years (75% exclusion)

You exclude $3,750,000 and pay tax on $1,250,000. At 31.8%, that is $397,500 in federal tax, an effective 7.95% rate. You keep about $4,602,500 before state tax.

The consequence is that one extra year cut your federal tax nearly in half versus the 3-year case. Yet you are still paying $397,500 that vanishes at year five. What to do: if a buyer is ready in year four, ask to push the closing past your five-year mark.

Sell at 5 years (100% exclusion)

You exclude the entire $5,000,000 and pay $0 in federal tax, up to the cap. You keep the full $5,000,000 gain at the federal level.

The consequence of patience is dramatic: holding 12 to 24 months longer than the early tiers saves the full $397,500 to $795,000 in federal tax. The misconception is that the early tiers are “good enough.” What to do: unless you must sell, target the exact five-year anniversary and confirm it in writing with your advisor.

Three Named Scenarios

Real people make the rules concrete. Each scenario below shows the new holding period and companion caps in action, and the dollar result of the choice.

Maria, the founder racing a buyout

Maria founded a software C corporation and received her QSBS in September 2025 for a $50,000 basis. In year four, an acquirer offers terms that would give her a $12,000,000 gain. Because she is in the 4-year tier, she excludes 75% ($9,000,000) and pays 31.8% on $3,000,000, or $954,000 in federal tax.

Maria asks the buyer to delay closing until past her five-year anniversary in September 2030. The buyer agrees, her exclusion jumps to 100%, and her federal tax drops from $954,000 to $0 — a near-million-dollar swing for waiting under a year.

David, the angel investor comparing caps

David invests $2,000,000 in a startup in October 2025. He sells five years later with a $25,000,000 gain. His cap is the greater of $15,000,000 or 10x his $2,000,000 basis, which is $20,000,000.

So David excludes $20,000,000 and pays the 31.8% Section 1202 rate on the remaining $5,000,000, for $1,590,000 in federal tax. Had he relied on only the $15 million flat cap, he would have wrongly assumed a far larger taxable amount. The 10x-basis rule is what large investors must always check.

Priya, the California employee caught by her state

Priya exercises stock options in November 2025 and holds five years, ending with a $4,000,000 gain. Federally, she excludes 100% and owes $0 to the IRS.

But Priya lives in California, which does not conform to Section 1202, as practitioners widely note. California taxes her full $4,000,000 gain at rates up to 13.3%, costing her roughly $532,000 in state tax despite her perfect federal result.

State Conformity: Does Your State Tax This?

Federal law is only half the story. A state can tax your QSBS gain even when the IRS does not, because many states write their own rules. Always confirm your state separately before you celebrate a federal exclusion.

Three patterns matter most. California does not allow the QSBS exclusion at all and taxes the full gain. New Jersey historically did not conform and taxed the gain, though you should confirm current-year treatment. Pennsylvania has its own limited treatment that often differs from the federal break. States with no income tax — Texas, Florida, Washington, Nevada, and others — simply do not tax the gain, which is a complete and favorable answer.

The consequence of assuming your state follows the IRS is a surprise five- or six-figure state bill. The misconception is that “federal tax-free” means “tax-free.” What to do: ask your CPA for your state’s exact QSBS treatment for the year you sell, and budget for a state bill in non-conforming states.

How to Claim It: Forms and Reporting

You report a QSBS sale on your federal return, not through a special application. The sale flows through Form 8949 and Schedule D, the same forms used for other capital gains, with a code that flags the exclusion. If you need a refresher on those forms, see our guide on how to fill out Form 8949 and pair it with the capital-gains reporting steps on Schedule D.

You enter the full gain, then enter the excluded amount as a negative adjustment with code Q in column (f) of Form 8949. The taxable remainder carries to Schedule D and onto your Form 1040. The deadline is your normal return due date — April 15 of the year after the sale, or October 15 with an extension.

The consequence of skipping the code or misreporting the basis is an IRS notice and possible loss of the exclusion. The fix: keep your purchase records, the company’s QSBS attestation, and your holding-period proof with your tax file for at least seven years.

Mistakes to Avoid

These errors quietly destroy QSBS benefits. Each one has cost real taxpayers real money.

Selling one day before a tier date. You drop to a lower tier or to zero, costing tax on gain that would have been excluded.
Assuming old stock gets the new rules. Pre-July 5, 2025 stock keeps the $10 million cap and five-year all-or-nothing rule, so you over-claim and face penalties.
Trying to “reset” your clock with an exchange. The law counts carryover holding periods, so a stock-for-stock swap or Section 1045 rollover usually will not move old stock into the new rules, per Mintz.
Ignoring state tax. A perfect federal exclusion still leaves a large California or New Jersey bill.
Buying stock in an S corporation or LLC. Only C corporation stock qualifies, so the entity type silently disqualifies you.
Missing the 10x-basis cap. Large investors who use only the flat cap overstate their taxable gain and overpay.
Losing your acquisition records. Without proof of the date, the IRS can deny the exclusion entirely.
Letting the company cross the gross-asset limit before issuance. Stock issued after the company exceeds $75 million does not qualify.

Do’s and Don’ts

Do confirm your exact acquisition date in writing, because it controls which rule set applies.
Do get a QSBS attestation from the company at purchase, because it proves the gross-asset and active-business tests.
Do compare the $15 million cap against 10x your basis, because the larger figure is your real ceiling.
Do check your state’s conformity, because a non-conforming state can erase much of your savings.
Do time your sale to clear the five-year mark when you can, because the jump to 100% is the biggest single benefit.
Don’t sell on a guess about your tier, because the statute counts to the day.
Don’t assume an extension of the law to old stock, because the July 4, 2025 line is firm.
Don’t rely on a rollover to upgrade old stock, because carryover holding periods block the reset.
Don’t forget code Q on Form 8949, because omitting it can trigger an IRS notice.
Don’t skip professional help on a multimillion-dollar exit, because the cost of an error dwarfs the fee.

Pros and Cons of the New Tiered Rule

Pro: Early exits now keep partial benefits, because the 3- and 4-year tiers replace the old zero.
Pro: The higher $15 million cap shields more gain, because the per-issuer ceiling rose by half.
Pro: The $75 million asset limit lets larger startups qualify, because more companies meet the test.
Pro: Inflation indexing from 2027 protects the caps over time, because the figures will rise.
Pro: The flexibility helps founders accept good offers sooner, because waiting is no longer all-or-nothing.
Con: The partial tiers tax the included gain at a steep 31.8% rate, because Section 1202 uses the 28% rate plus the surtax.
Con: The split between old and new stock adds complexity, because two cap regimes can coexist.
Con: Many states still do not conform, because state law diverges from the federal break.
Con: Recordkeeping demands rise, because the acquisition date now drives the whole result.
Con: Rollovers no longer reset the clock, because carryover holding periods apply.

What to Do Next

Take these steps in order to protect your QSBS benefit before you sell.

Confirm your acquisition date for each block of stock and label it pre- or post-July 4, 2025.
Get the company’s QSBS attestation covering the gross-asset, C corporation, and active-business tests.
Calculate your cap as the greater of $15 million (or $10 million for old stock) or 10x your basis.
Map your tier dates — the exact 3-, 4-, and 5-year anniversaries — on a calendar.
Check your state’s conformity for the year you plan to sell, especially in California, New Jersey, and Pennsylvania.
Gather your reporting records for Form 8949 and Schedule D, including basis and holding-period proof.
Call a CPA or tax attorney before any sale above roughly $1 million; a typical engagement involves a QSBS qualification review and exit-timing analysis, and the fee is small against the tax at stake.

This article is educational and not a substitute for advice from a licensed professional about your specific situation. A multimillion-dollar exit, a mix of old and new stock, an entity conversion, or a non-conforming state are all signs you should bring in a CPA or tax attorney before you act.

FAQs

What is the new QSBS holding period?

Tiered: 3, 4, or 5 years. For stock acquired after July 4, 2025, you exclude 50% of gain at 3 years, 75% at 4 years, and 100% at 5 years. Older stock still needs more than 5 years.

Does the new holding period apply to my existing QSBS?

No. The tiered rule applies only to stock acquired after July 4, 2025. Stock acquired on or before that date keeps the old five-year, all-or-nothing rule and the $10 million cap, even if you sell it later.

How much gain can I exclude under the new QSBS rules?

The greater of $15 million or 10x basis. For stock acquired after July 4, 2025, the per-issuer cap rose to $15 million, indexed for inflation starting 2027. Older stock keeps the $10 million cap.

What tax rate applies to the gain that is not excluded?

31.8% federal. The included gain is taxed at the Section 1202 rate of 28% plus the 3.8% net investment income tax. That is why the 3-year tier carries a ~15.9% effective rate and the 4-year tier ~7.95%.

What is the new gross-asset limit for a qualified small business?

$75 million. The OBBBA raised the corporate gross-asset ceiling from $50 million to $75 million for stock issued after July 4, 2025, indexed for inflation from 2027, which lets larger startups qualify.

Can I reset my holding period by exchanging my stock?

No. The law requires you to carry over prior holding periods, so a stock-for-stock exchange or Section 1045 rollover generally will not move pre-July 5, 2025 stock into the new, more favorable rules.

Does my state tax QSBS gain?

It depends on your state. California does not conform and taxes the full gain; New Jersey historically did not conform; Pennsylvania has its own treatment. No-income-tax states like Texas and Florida do not tax it.

Do these QSBS changes expire?

No stated sunset. Unlike some temporary OBBBA provisions, the QSBS changes to Section 1202 are not scheduled to expire, and the dollar caps are indexed for inflation beginning in 2027.

What type of company stock qualifies for QSBS?

Original-issue C corporation stock. You must buy it directly from a domestic C corporation that meets the gross-asset and active-business tests. Stock in an S corporation, LLC, or partnership does not qualify.

How do I report a QSBS sale to the IRS?

On Form 8949 and Schedule D. Report the full gain, then enter the excluded amount as a negative adjustment with code Q on Form 8949. The taxable remainder flows to Schedule D and your Form 1040.

What happens if I sell one day before a tier date?

You drop a tier. The holding period counts to the day, so selling just short of 3, 4, or 5 years gives you the lower exclusion — or zero before 3 years — costing tax on gain that would have been excluded.

Should I sell at year three or wait for year five?

Usually wait if you can. At year five your federal tax on the gain is zero, versus a ~15.9% effective rate at year three. Sell early only for a forced exit, a firm buyer, or a real cash need.

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