The 2026 QSBS Section 1202 Comprehensive Report: Eligibility, Stacking, State Conformity, Common Failures

Section 1202 is the single most powerful tax provision for founder exits in the US code, and it is also the most poorly understood. A correctly structured QSBS exit can exclude $10 million or 10x basis of gain at zero federal capital gains tax. Stacked across multiple non-grantor trusts and family members, the same exit can exclude $50M, $100M, or more. The provision has existed since 1993 and reached full 100% exclusion in 2010, yet most founders we speak with either have never heard of it or have a partial understanding that misses the structural traps.

This report is the canonical reference. We walk through the five statutory requirements in plain language with worked examples. We show the $10M-vs-10x-basis calculation at multiple basis levels so you can model your own situation. We map state-by-state conformity, including the seven jurisdictions that do not honor the federal exclusion. We document the stacking strategies that compound the exclusion across trusts and family members. And we catalogue the common failure modes that disqualify otherwise-eligible shareholders, with citations to the IRC sections, Treasury regulations, and IRS rulings that govern each.

We are CT Strategic Partners, a U.S. buy-side M&A firm based in Sheridan, Wyoming. We are buyer-paid. The seller pays nothing and signs nothing in our process. We publish this report because QSBS planning is the single most consequential tax structural decision in a founder exit, and the consequences of missing the 5-year window or the C-corp test are irreversible. This is not legal or tax advice. It is a structured reference you can use with qualified counsel.

One framing note. QSBS planning is most valuable 5+ years before a sale. It is moderately valuable 3-5 years before a sale (you can convert to C-corp and start the clock, but you lose pre-conversion appreciation). It is marginally valuable at 1-3 years (you can still use QSBS rollover under §1045 if you reinvest into new QSBS). And it is functionally useless at the sale closing table, where the structural decisions that determine eligibility were already made years prior. The cost of acting late is permanent.

The five statutory tests for QSBS eligibility

QSBS eligibility under IRC §1202 requires all five of the following tests to be satisfied. Missing any one disqualifies the entire holding. Each test has been the subject of IRS guidance, private letter rulings, and case law.

Test 1: domestic C-corporation

The issuing corporation must be a US domestic C-corporation at the time the stock is issued and during substantially all of the holder’s holding period. S-corporations, partnerships, LLCs taxed as partnerships, REITs, RICs, REMICs, DISCs, and cooperatives are excluded.

Practical implications. A business operating as an S-corp or LLC cannot issue QSBS until it converts. Conversion starts a new clock; pre-conversion appreciation is generally not eligible for the exclusion. The conversion mechanics matter: a typical S-to-C revocation under §1362(d) does not trigger original issuance, while an F-reorganization that creates a new C-corp parent generally does. Consult counsel on which mechanism preserves eligibility for any new equity issued post-conversion.

Test 2: $50 million gross assets at issuance

The corporation’s aggregate gross assets (measured by tax basis, with certain adjustments) must not exceed $50 million at any time on or before the date of stock issuance, and the gross assets immediately after issuance must also not exceed $50 million (counting the stock issuance proceeds). This is a one-time test at issuance, not an ongoing test.

What counts in gross assets. Cash, receivables, inventory, equipment at tax basis, goodwill, intellectual property, and equity in subsidiaries. Property contributed to the corporation is counted at fair market value at the time of contribution under §1202(d)(2)(B), not basis — this can create traps when a founder contributes appreciated property to start the corporation.

The aggregation rule. Under §1202(d)(3), parent-subsidiary controlled groups are aggregated for purposes of the gross asset test. A founder cannot avoid the $50M cap by splitting operations across multiple C-corps that share more than 50% common control.

Once-failed-always-failed. If gross assets ever exceed $50M before or at issuance, the issuance is permanently disqualified. Subsequent reductions in gross assets do not restore eligibility for that issuance, although future issuances after the gross assets again drop below $50M may qualify if all other tests are met.

Test 3: original issuance for cash, services, or property

The stock must be acquired by the holder at original issuance directly from the corporation in exchange for money or other property (not stock), or as compensation for services to the corporation. Secondary purchases from existing shareholders do not qualify.

What ‘original issuance’ means. Stock issued at corporate formation qualifies. Stock issued in a subsequent funding round qualifies. Stock issued upon exercise of stock options or warrants generally qualifies if the option/warrant itself was originally issued by the corporation. Stock acquired through purchase from a co-founder, an angel investor, or any prior shareholder does not qualify, even if all other tests are met.

Specific exceptions. Stock received in certain tax-free reorganizations (carryover basis transactions under §351 or §368) inherits the QSBS status of the predecessor stock, with holding period tacking. Stock received by gift or inheritance retains QSBS status with carryover holding period. Stock received in a divorce transfer under §1041 retains QSBS status.

Test 4: 5-year holding period

The holder must hold the stock for more than 5 years before sale or exchange. The holding period is measured from the original issuance date. Holding period tacks through gifts (donor’s holding period adds to donee’s) and through tax-free exchanges that preserve QSBS status.

The trap of premature sale. A sale 4 years and 11 months after issuance is fully taxable at long-term capital gains rates (typically 23.8% federal including NIIT). A sale one month later is potentially 100% federally tax-free up to the cap. The 5-year clock is the single most important date in QSBS planning.

§1045 rollover relief. If you must sell QSBS held less than 5 years, IRC §1045 allows you to defer recognition of gain by reinvesting the sale proceeds in new QSBS within 60 days. The rolled basis carries the original holding period forward, so you can eventually meet the 5-year test through chained rollovers. This is useful for serial founders.

Test 5: active qualified trade or business

During substantially all of the holder’s holding period, the corporation must conduct an active qualified trade or business. ‘Substantially all’ is interpreted by Treasury and most practitioners as roughly 80% or more of the holding period; the safe-harbor language has not been formally codified by regulation, so conservative practice treats this as substantially-all in fact.

The disqualified business list. Section 1202(e)(3) excludes corporations whose ‘principal asset is the reputation or skill of one or more employees’ — in practice, this means:

• Health (medical practices, dental, vet, behavioral health) — explicitly excluded
• Law — explicitly excluded
• Engineering, architecture, accounting, actuarial science — explicitly excluded
• Performing arts, consulting, athletics, financial services, brokerage services — explicitly excluded
• Banking, insurance, financing, leasing, investing — explicitly excluded
• Farming (including raising or harvesting trees), production or extraction of natural resources eligible for percentage depletion — explicitly excluded
• Hospitality (any business operating a hotel, motel, restaurant, or similar) — explicitly excluded

The active-business test (§1202(c)(2) and (e)(1)). At least 80% of the corporation’s assets (by value) must be used in the active conduct of a qualified trade or business throughout substantially all of the holding period. Working capital and certain investment assets count up to a cap; passive investment income and excessive real estate holdings can fail this test.

The reputation-or-skill trap for borderline businesses. Software, fintech, biotech, manufacturing, and consumer goods generally qualify. Pure consulting, agency services, and professional services generally don’t. The grey zone — tech-enabled services, productized consulting, certain healthtech models — requires case-by-case analysis. The 2017 IRS PLR 201717010 and subsequent guidance have clarified some edges but left others ambiguous.

The $10M vs 10x basis cap calculation, with worked examples

The QSBS exclusion is capped at the greater of $10 million per issuer (lifetime cap) or 10 times the holder’s aggregate adjusted basis in the QSBS sold during the taxable year. The choice is not optional; the cap is computed both ways and the higher number applies. For most low-basis founders, the $10M cap binds. For investors who put significant cash in, the 10x cap binds and can be much higher.

Example 1: low-basis founder

Variable	Value
Founder cash investment at formation	$10,000
QSBS issuance basis	$10,000
Sale price 6 years later	$25,000,000
Realized gain	$24,990,000
$10M cap	$10,000,000
10x basis cap	$100,000 (10 × $10,000)
Applicable cap (greater of two)	$10,000,000
Excluded gain	$10,000,000 (100% federally tax-free)
Taxable gain	$14,990,000 (taxed at LTCG + NIIT, typically 23.8%)
Federal tax saved by QSBS	$2,380,000

Example 2: high-basis investor

Variable	Value
Investor capital into Series A QSBS	$5,000,000
QSBS issuance basis	$5,000,000
Sale price 6 years later	$60,000,000
Realized gain	$55,000,000
$10M cap	$10,000,000
10x basis cap	$50,000,000 (10 × $5,000,000)
Applicable cap (greater of two)	$50,000,000
Excluded gain	$50,000,000 (100% federally tax-free)
Taxable gain	$5,000,000 (taxed at LTCG + NIIT, typically 23.8%)
Federal tax saved by QSBS	$11,900,000

Example 3: mixed founder and investor basis

Many founders hold a mix of low-basis founder stock and higher-basis stock from later cash investments or option exercises. The 10x cap is computed on the aggregate adjusted basis of QSBS sold in the taxable year, not separately for each lot.

Variable	Value
Founder stock basis (Year 0)	$20,000
Option exercise basis (Year 2)	$2,000,000
Aggregate QSBS basis at sale	$2,020,000
Sale price 6 years after first issuance, 4.5 years after option exercise	$40,000,000
Eligible QSBS (founder stock only, since option stock has not met 5-year test)	Founder stock portion only

The option-exercised stock fails the 5-year test and is fully taxable at LTCG. The founder stock is QSBS-eligible. The 10x basis cap on the founder stock alone is $200,000 (10 × $20,000), so the binding cap is $10M and most of the gain is excluded.

The per-issuer rule. The $10M / 10x cap applies per issuer corporation, not per holder. A serial founder with QSBS in multiple unrelated C-corps can claim the cap separately for each company. This is the foundation of the multi-entity planning strategy.

Pre-2010 issuance: partial exclusions

QSBS issued before September 28, 2010, qualifies for only a 50% exclusion. QSBS issued between September 28, 2010, and February 17, 2009, qualifies for a 75% exclusion. Only QSBS issued on or after September 28, 2010 qualifies for the 100% exclusion. The lower exclusion percentages also trigger AMT preference items and the 28% capital gains rate on the included portion. Almost all current planning focuses on post-2010 issuances.

State conformity: where QSBS works and where it does not

The federal QSBS exclusion does not bind state taxing authorities. Each state determines whether to conform to the federal treatment. Most states do conform because they begin their income tax calculation from federal adjusted gross income or federal taxable income. A handful explicitly decouple.

State	QSBS conformity status (2026)	Notes
California	Does NOT conform	California repealed its state-level QSBS exclusion (former Cal. R&TC §18152.5) in 2013 following Cutler v. FTB. California taxes the full gain at state rates up to 13.3%. The most material non-conformity state.
Alabama	Does NOT conform	Alabama follows federal AGI but explicitly adds back the QSBS exclusion.
Hawaii	Does NOT conform	Hawaii decouples from §1202.
Mississippi	Does NOT conform	Mississippi decouples; full gain taxable at state rates.
New Jersey	Does NOT conform	New Jersey uses gross income tax base independent of federal AGI; §1202 has no effect on NJ tax.
Pennsylvania	Does NOT conform	Pennsylvania uses its own income classification system; §1202 does not flow through.
Puerto Rico	Does NOT conform	PR has its own tax code; §1202 does not apply.
Wisconsin	Partial conformity	Wisconsin conforms but at a 30% exclusion (Wis. Stat. §71.05(25)) instead of 100%.
Massachusetts	Conforms with limited modification	Massachusetts conforms generally but has historically applied different definitions for some business types; verify at filing.
All other states with income tax	Generally conform	States that start from federal AGI or federal taxable income generally honor the federal exclusion. This includes New York, Texas (no income tax), Florida (no income tax), and most others.
No-income-tax states	N/A	Texas, Florida, Wyoming, Washington, Nevada, South Dakota, Tennessee, Alaska, New Hampshire have no individual income tax, so federal QSBS exclusion fully governs.

The California problem and how founders work around it

California’s non-conformity is the most consequential single state issue in QSBS planning. A California founder selling $10M of QSBS gain pays $0 federally but up to $1.33M to California (13.3% top rate). The most common workarounds:

• Move to a no-tax state before sale — requires bona fide change of domicile, typically 6-18 months in advance, with all the documentary indicia (driver’s license, voter registration, primary residence, family location). California aggressively audits domicile changes by high-net-worth individuals.
• Non-grantor trust in a no-tax state — transfer QSBS to a non-grantor incomplete-gift trust (ING) or completed-gift non-grantor trust in Nevada, Delaware, South Dakota, or Wyoming. The trust pays state tax based on its situs, not the grantor’s residence. Requires careful structuring to avoid California throwback rules.
• Charitable strategies — donate QSBS to a charitable remainder trust (CRT) or donor-advised fund pre-sale. Eliminates both federal and California tax on donated portion at the cost of a partial economic interest.

QSBS stacking: multiplying the cap across trusts and family members

The $10M per-issuer cap binds per taxpayer, not per holder economic exposure. A founder can multiply the cap by transferring QSBS to multiple non-grantor trusts and family members, each of which is a separate taxpayer for federal income tax purposes. This is the single largest planning lever in QSBS.

The basic stacking structure

Each of the following can claim its own $10M (or 10x basis) cap on the same issuer’s stock:

• The founder personally
• The founder’s spouse (separate filer for QSBS purposes even if joint filer on Form 1040; some practitioners argue for joint return aggregation, conservative practice is to plan each separately)
• Each non-grantor trust the founder establishes for a beneficiary (children, grandchildren, parents)
• Each adult child or grandchild who receives QSBS by gift before sale (if gift is bona fide and respect-the-form)

The mathematics are powerful. A founder with $80M of QSBS gain and four children can structure four non-grantor trusts (one per child) and claim $50M of exclusion across the founder, spouse, and four trusts ($10M each × 5 taxpayers; with proper structure, sometimes 6 or 7). At a 23.8% federal marginal rate, the additional $40M of exclusion saves $9.5M in federal tax.

Non-grantor trusts: the workhorse vehicle

A non-grantor trust is a trust that is treated as a separate taxpayer from the grantor for federal income tax purposes. Achieving non-grantor status requires careful drafting to avoid the grantor trust rules in §671-§679. The trust must not be revocable, the grantor must not retain certain powers, and the income/principal must not be distributable to or for the grantor in ways that trigger grantor treatment.

Each non-grantor trust is a separate §1202 taxpayer. Each gets its own $10M cap on each issuer’s stock. The trust must hold the QSBS for the requisite 5-year period (including tacked holding period from the gift) and must satisfy all five eligibility tests at the entity level.

Gift-and-hold structuring

A founder who has held QSBS for 4 years can gift portions to non-grantor trusts. The trust receives the QSBS with tacked holding period; in this example, the trust needs to hold only 1 more year to satisfy the 5-year test. The gift is a taxable gift for transfer tax purposes (subject to lifetime exemption, which is $13.99M per individual in 2025, indexed annually). For high-net-worth founders pre-sale, using lifetime exemption to fund non-grantor trusts is a wealth-transfer plus QSBS-multiplier in one move.

The ‘incomplete gift non-grantor’ (ING) variation

An ING is a non-grantor trust where the grantor’s transfer is an incomplete gift for transfer tax purposes (the grantor retains certain limited powers that prevent the transfer from being a completed gift). The trust is still non-grantor for income tax purposes, so it has its own §1202 cap. INGs avoid burning lifetime gift tax exemption and are particularly useful for founders who want to multiply QSBS exclusions without making completed gifts.

Watch for state attacks. California, New York, and several other states have aggressively attacked INGs as state-tax-avoidance vehicles. New York’s 2014 ING legislation and California’s evolving guidance limit ING effectiveness for state purposes. Federal QSBS treatment is generally respected even where state attribution rules are unfavorable.

The non-grantor trust pre-sale checklist

• Trust drafted and funded before binding sale negotiations begin (a trust funded after a definitive agreement is signed can be recharacterized as a step-transaction)
• Trust situs in a state with favorable trust laws and no state income tax (Nevada, South Dakota, Delaware, Wyoming, Tennessee, Alaska)
• Independent trustee (not the grantor, not a related party in a way that triggers grantor status)
• Trustee has actual discretion over distributions to beneficiaries
• Gift tax return (Form 709) filed for any completed gifts to the trust
• Holding period documentation (acquisition date, type of stock, basis, qualified-business status)
• Annual trust income tax returns (Form 1041) and distribution accounting

Section 1045 rollover stacking

IRC §1045 allows a holder who sells QSBS held more than 6 months but not yet 5 years to defer gain by reinvesting proceeds into new QSBS within 60 days. Holding period tacks, so the eventual 5-year test can be met across multiple rollover legs. Serial founders use §1045 to compound QSBS positions across multiple ventures. Combined with non-grantor trust stacking, the structure can support very large lifetime QSBS exclusions.

Common failure modes that disqualify otherwise-eligible holders

The IRS does not issue refunds for QSBS planning mistakes. The following failure modes account for the majority of disqualifications we see in pre-sale review.

Failure 1: S-corp conversion does not create original issuance

A founder operating as an S-corp for years cannot ‘convert to C-corp’ and have the existing stock magically become QSBS. The S-to-C revocation under §1362 changes the corporation’s tax classification but does not create a new stock issuance. The existing stock retains its original-issuance date, which was when the corporation was an S-corp, and the stock fails Test 1 (must be C-corp at issuance).

The structural workaround: contribute the S-corp stock to a new C-corp parent in a §351 exchange (or use an F-reorganization). The new C-corp issues stock to the founder in exchange for the S-corp shares. The new stock is treated as originally issued by the C-corp parent on the contribution date. From that date forward, the new stock can qualify as QSBS if all other tests are met. Pre-conversion appreciation is lost: only post-conversion gain qualifies for the exclusion.

Failure 2: professional services exclusion

Founders of consulting firms, agencies, healthcare practices, law firms, and accounting firms regularly believe they have QSBS until counsel reviews the trade-or-business test. §1202(e)(3) explicitly excludes ‘any trade or business involving the performance of services in the fields of health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage services, or any trade or business where the principal asset of such trade or business is the reputation or skill of one or more of its employees.’

The ‘reputation or skill of employees’ catch-all is the most-litigated phrase. Software companies, fintech, biotech, manufacturing, and consumer goods generally qualify because their principal asset is intellectual property, products, or systems — not the personal reputation of employees. The 2017 PLR 201717010 (insurance brokerage) and PLR 201436001 (pharmaceutical research) provide useful boundary guidance.

Failure 3: gross asset test miscount

The $50M gross asset test is computed at tax basis with one critical exception: property contributed in exchange for stock is counted at fair market value at the time of contribution, not at carryover basis. A founder who contributes a building worth $30M to start a C-corp uses up $30M of the $50M cap on day one. If the corporation then receives $25M of cash investment, gross assets are $55M and the issuance to the cash investors fails.

The aggregation rule under §1202(d)(3) also catches founders who try to split operations across multiple C-corps. If the corporations are more than 50% commonly controlled, their gross assets are aggregated for QSBS purposes.

Failure 4: stock acquired from a co-founder or angel

Stock purchased from another shareholder is not originally issued. A founder who acquires additional shares by buying out a departing co-founder cannot claim QSBS on those shares, even if the underlying corporation is fully eligible. The same rule applies to secondary purchases from angel investors. Only stock issued directly by the corporation in a primary issuance qualifies.

The carve-out for options: stock acquired by exercising an option or warrant originally issued by the corporation is treated as originally issued at the exercise date. This is the primary mechanism by which option-holding employees can claim QSBS on their exercise stock.

Failure 5: redemptions of related-party stock

If the corporation redeems stock from a holder or a related party within 2 years before or after the QSBS issuance, and the redemption exceeds 5% of the aggregate stock value, the QSBS status of the new issuance can be disqualified under §1202(c)(3). This is the ‘related party redemption trap’ that catches founders who buy out a co-founder shortly before or after a Series A.

Specific safe-harbor exceptions exist for redemptions in connection with death, disability, divorce, or termination of employment, but the structural rule is broader than most founders realize. Pre-sale, any redemption activity within the 2-year window should be reviewed against §1202(c)(3).

Failure 6: ineligible asset mix

Throughout substantially all of the holding period, at least 80% of the corporation’s assets must be used in the active conduct of a qualified business. Excessive real estate (unless used in operations), passive investment securities, or cash holdings beyond reasonable working-capital needs can fail this test.

The IRS has not issued bright-line guidance on the working-capital safe harbor, but most practitioners use a 2-year reasonable-needs test: cash held to fund operations within 2 years counts as actively used; cash held longer than 2 years is suspect. For a corporation with $50M in cash and $20M in operating assets, this test can be the disqualifying constraint.

Failure 7: tax-free merger that does not preserve QSBS status

A QSBS holder whose corporation is acquired in a tax-free reorganization (§368) generally preserves QSBS status on the substitute stock if the acquiring corporation is also a qualified small business at the time. If the acquirer is a large public company that fails the $50M gross asset test, the substitute stock loses QSBS treatment. The acquirer’s size at the time of the merger matters; subsequent growth does not retroactively disqualify.

The practical implication: founders selling into a large public-company merger must accelerate the QSBS sale (e.g., by structuring as a stock sale with cash election or a partial cash sale before the stock leg) to lock in the exclusion on the QSBS leg.

Failure 8: sale within the 5-year window for cap-table reasons

The most painful failure: a founder forced to sell at 4 years and 7 months because the acquirer will not wait. The cost: full LTCG plus NIIT (23.8%) on the entire gain, instead of zero federal tax up to the cap. On a $10M gain, that is $2.38M of tax that would have been zero with 5 more months of patience.

The §1045 partial relief: if rollover into new QSBS is feasible within 60 days, the gain can be deferred and the original holding period tacks forward. For founders who plan to start another business anyway, this can salvage the exclusion. For founders who plan to retire, the gain is recognized.

Pre-sale QSBS planning timeline: 5+ years, 3-5 years, 1-3 years, and last-minute

QSBS planning value decays steeply as the sale window shrinks. The following timeline shows what is achievable at each lead time.

5+ years before sale

• Convert to C-corp if currently S-corp or LLC; start the 5-year clock
• Confirm gross asset test compliance at every funding round
• Confirm qualified-trade-or-business eligibility through the planning horizon
• Document original-issuance evidence (subscription agreements, board resolutions, share certificates)
• Establish non-grantor trusts for stacking; fund with founder stock while value is low (lower gift tax cost)
• Plan domicile if currently in California, NJ, PA, or other non-conforming state
• Estimated tax saved versus zero planning: up to $20M+ on a $50M-$100M exit

3-5 years before sale

• Still possible to convert to C-corp and start the clock, but pre-conversion appreciation is lost
• Non-grantor trust gifting is still useful; tacked holding period plus residual hold can reach 5 years
• Begin domicile planning if relocating from non-conforming state
• Confirm option/warrant exercise timing to align with 5-year window
• Estimated tax saved versus zero planning: up to $5M-$15M on a $25M-$50M exit

1-3 years before sale

• Insufficient time for new C-corp conversion to mature
• Existing QSBS holdings can still be stacked across non-grantor trusts (5-year tacking)
• §1045 rollover available if forced sale, with reinvestment into new QSBS
• Domicile change still possible but increasingly aggressive; California audit risk rises with proximity to sale
• Estimated tax saved versus zero planning: up to $2M-$5M on a $15M-$30M exit

Less than 1 year / at closing

• Existing QSBS that has already met 5-year test: claim the exclusion, stack across trusts only if trusts were funded earlier
• QSBS that has not met 5-year test: §1045 rollover into new QSBS if reinvestment feasible
• Charitable strategies (CRT, DAF) can absorb some gain at the cost of economic interest
• Domicile change at this stage is rarely effective
• Estimated tax saved versus zero planning: marginal; the major structural decisions are locked in

QSBS interaction with rollover equity, asset sales, and PE buyout structures

Most lower-middle-market PE transactions involve structural elements that interact non-obviously with QSBS treatment. Understanding the interactions is the difference between preserving and forfeiting the exclusion.

Asset sale versus stock sale

QSBS exclusion applies only to gain on the sale or exchange of QSBS stock. An asset sale by the corporation does not directly trigger QSBS exclusion at the shareholder level. To get the exclusion in an asset-sale context, the corporation must liquidate (or distribute proceeds in a redemption) and the shareholder must recognize gain on the receipt of liquidating proceeds in exchange for the QSBS stock.

Properly structured, an asset sale followed by liquidation can preserve QSBS treatment because the liquidating distribution is treated under §331 as a sale or exchange of the QSBS by the shareholder. The qualification depends on the asset-sale-plus-liquidation sequence being respected as a single integrated transaction.

The 338(h)(10) trap. A §338(h)(10) election treats a stock sale as an asset sale for tax purposes. This can preserve QSBS treatment because the transaction remains a stock sale at the shareholder level. Counsel should confirm the specific structure with the acquirer.

Rollover equity in PE transactions

PE buyers commonly require sellers to reinvest 10-30% of proceeds into the buyer’s post-close holding company. The rollover is typically structured as a tax-deferred exchange under §351 (contribution to a corporation) or §368 (reorganization).

QSBS treatment of rolled stock: if the rollover is structured properly under §351 or §368, the new holding company stock inherits QSBS status from the original QSBS, with tacked holding period. If the new holding company is itself a qualified small business at the time of the rollover, the stock can retain QSBS status going forward, potentially supporting a second QSBS exclusion at the next exit.

If the new holding company fails the $50M gross asset test (which is common when the rollover entity has acquired multiple platforms), the rolled stock loses QSBS status from that point forward. Existing accrued QSBS gain at the time of the rollover can still be locked in if structured as a partial cash exit with rollover on the residual.

Earnouts and QSBS

Earnout payments received after the QSBS holding period are generally treated as additional gain on the QSBS sale and are eligible for the exclusion (up to the cap). The IRS has not issued definitive guidance on closed-transaction vs open-transaction reporting for QSBS earnouts; conservative practice uses closed-transaction reporting with the discounted earnout value included in the cap calculation.

The cap binds at sale, not at earnout receipt. If the $10M cap is consumed at closing with no headroom, subsequent earnout payments may exceed the cap and become fully taxable. Planning for cap allocation between initial proceeds and earnout proceeds matters.

Escrow holdbacks and indemnification

Escrow proceeds received within the same taxable year as the closing are generally included in the QSBS sale calculation. Multi-year escrows can create installment-sale treatment, which interacts with QSBS in complex ways. Counsel should model the escrow tax mechanics specifically.

Stock-for-stock acquirer mergers

If the acquirer is a public or large private company that does not meet the $50M gross asset test at the merger, the substitute stock loses QSBS treatment. Sellers in this position generally prefer a cash election or partial cash structure to preserve QSBS on the cash leg, since the rolled stock leg loses the exclusion regardless.

QSBS in PE platform buyouts: how it survives, and how it does not

PE platform buyouts are the most common LMM exit structure. They also create the most opportunity for inadvertent QSBS loss. The patterns:

Pattern 1: 100% cash exit at PE platform acquisition

A founder sells 100% of QSBS to a PE platform for cash. If the 5-year holding period is met and all other tests are satisfied, the exclusion applies up to the cap. Clean and rare; most PE deals involve some rollover.

Pattern 2: cash plus rollover into the PE holding company

Founder sells 80% for cash and rolls 20% into PE NewCo stock under §351. The 80% cash portion is treated as a QSBS sale (eligible for exclusion up to the cap). The 20% rollover is tax-deferred under §351. The rolled stock inherits the QSBS holding period and may retain QSBS status if NewCo is itself a qualified small business at the time of the rollover.

The NewCo qualification trap: if the PE platform is already a $200M-revenue business at the time of the rollover, NewCo’s gross assets exceed $50M and the rolled stock loses QSBS status from the rollover date forward. The cap on the cash portion still applies; the rolled portion is now non-QSBS for the next sale.

Pattern 3: cash plus rollover into the operating subsidiary

In some structures, the rollover is into the operating subsidiary (the original C-corp) rather than the PE NewCo parent. The subsidiary’s QSBS status is preserved, but the founder now holds a minority position in a non-publicly-traded sub of the PE platform. Exit liquidity is generally tied to the PE NewCo’s eventual sale.

Pattern 4: QSBS in a recapitalization (no change of control)

A minority recapitalization where PE buys 30-49% of the company while the founder retains majority control does not necessarily trigger a sale event for QSBS. The founder’s QSBS basis and holding period are unaffected. The founder can sell at the next liquidity event (typically 3-7 years later) with the original QSBS basis and a longer cumulative holding period.

The ‘two bites at the apple’ strategy

A founder sells QSBS to a PE platform with rollover into a NewCo that is itself a qualified small business. The rolled stock retains QSBS status. Five+ years later, the PE platform exits to a larger acquirer. The founder claims QSBS exclusion on the second sale up to the cap (typically a new $10M cap, since the cap is per issuer and NewCo is a different issuer than the original company). The two-bite structure can support $20M+ of total QSBS exclusion per founder on a single business.

The NewCo size constraint: the rollover NewCo must satisfy the $50M gross asset test at the time of the rollover. For sub-$25M-EBITDA platforms, this is generally feasible. For larger platforms, NewCo will exceed $50M and the strategy fails.

Qsbs 1202: Frequently Asked Questions

What is QSBS Section 1202 in plain English?

Section 1202 of the IRC lets you exclude up to 100% of federal capital gains tax on the sale of qualified small business stock held more than 5 years, capped at the greater of $10 million or 10x your basis per company. To qualify, the stock must be issued by a US C-corporation that had less than $50M in gross assets at issuance and that conducts an active qualified trade or business (excluding most professional services, finance, hospitality, farming, and natural resources).

Can I claim QSBS if my company is an LLC or S-corp?

No. QSBS requires the stock to be issued by a domestic C-corporation. LLCs taxed as partnerships and S-corporations do not qualify. You can convert to C-corp (via S-to-C revocation or F-reorganization), but the 5-year clock starts at the conversion date. Pre-conversion appreciation is generally lost. Plan conversions 5+ years before any anticipated sale.

What does the $10M or 10x basis cap actually mean?

The exclusion is capped at the greater of (a) $10 million per issuer corporation over your lifetime, or (b) 10 times your aggregate adjusted basis in the QSBS sold during the taxable year. Low-basis founders typically hit the $10M cap. Investors who put significant cash into a company can claim 10x basis, which can be much higher (e.g., $5M of basis supports $50M of excluded gain).

Which businesses are excluded from QSBS eligibility?

Section 1202(e)(3) excludes health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage, banking, insurance, financing, leasing, investing, farming, natural-resource extraction eligible for percentage depletion, and hospitality (hotels, restaurants). The catch-all ‘principal asset is the reputation or skill of one or more employees’ captures most professional service businesses.

Does California honor the QSBS exclusion?

No. California does not conform to Section 1202 following the 2013 Cutler v. FTB decision and subsequent FTB guidance. The full gain is taxable at California rates up to 13.3%. Alabama, Hawaii, Mississippi, New Jersey, Pennsylvania, and Puerto Rico also do not conform. Wisconsin conforms partially (30% exclusion). All other states with income tax generally conform via federal AGI.

How does QSBS stacking with non-grantor trusts work?

Each non-grantor trust is a separate taxpayer for federal income tax purposes and gets its own $10M cap on each issuer’s QSBS. By transferring QSBS to multiple non-grantor trusts for the benefit of family members (5+ years before sale, with proper drafting to maintain non-grantor status), a founder can multiply the exclusion. The structure requires careful drafting to avoid grantor trust treatment and to respect the gift’s form.

What is the difference between Section 1202 and Section 1045?

Section 1202 excludes gain on QSBS held more than 5 years. Section 1045 lets you defer gain on QSBS held more than 6 months but less than 5 years by reinvesting proceeds in new QSBS within 60 days. The rolled stock’s holding period tacks from the original purchase, so you can eventually meet the 5-year test through chained rollovers. Serial founders use §1045 to compound QSBS positions.

Can I claim QSBS if I bought my stock from another shareholder?

No. The original issuance requirement means the stock must be acquired directly from the corporation in exchange for cash, services, or property (not in exchange for other stock). Stock purchased from a co-founder, angel investor, or any prior shareholder fails this test. Exceptions exist for stock received in tax-free reorganizations, gifts, and inheritance, where the QSBS status carries over from the predecessor stock.

What happens to QSBS in a PE buyout with rollover equity?

If the rollover is structured under §351 (contribution) or §368 (reorganization), the new stock inherits the QSBS holding period and may retain QSBS status if the rollover entity is itself a qualified small business at the time of the rollover (gross assets less than $50M). The cash portion of the buyout is treated as a QSBS sale and eligible for the exclusion up to the cap. If the rollover entity is a large platform exceeding $50M in gross assets, the rolled stock loses QSBS status going forward.

How do I document QSBS eligibility?

Maintain (a) the corporate formation documents showing C-corp status from inception or conversion date, (b) subscription agreements and board resolutions evidencing original issuance, (c) gross asset documentation at the time of issuance (financial statements, tax returns), (d) qualified-trade-or-business documentation throughout the holding period, (e) holding period evidence (share certificates, stock ledger), and (f) any trust documentation for stacked exclusions. Counsel typically prepares a QSBS eligibility memo at the time of sale.

What if I sell QSBS 4 years and 9 months after issuance?

The 5-year holding period is strict. A sale before 5 years does not qualify for the exclusion. Three options: (a) defer the sale 3 more months if the buyer will wait, (b) use §1045 to roll the proceeds into new QSBS within 60 days, with holding period tacking, or (c) accept the full LTCG plus NIIT (typically 23.8% federal) on the entire gain. The cost of waiting 3 months is typically much less than the tax cost of selling early.

Is QSBS planning relevant for businesses I’m about to sell?

It depends on lead time. With 5+ years, full QSBS planning is possible. With 3-5 years, partial planning (stacking existing QSBS across trusts) can still capture meaningful value. With less than 3 years, the major structural decisions are largely locked in, but §1045 rollover and charitable strategies can salvage some value. This report is not a substitute for transaction-specific counsel; we recommend engaging a tax attorney and CPA with specific QSBS experience well before any binding sale negotiations.

Sources & References

• IRC §1202 — statutory text, exclusion mechanics, eligibility tests, and per-issuer cap
• IRC §1045 — rollover provision for QSBS held more than 6 months but less than 5 years
• IRC §351 and §368 — tax-free contribution and reorganization provisions that preserve QSBS status
• Treasury Regulations and Revenue Procedures — Rev. Proc. 93-22 on QSBS reporting; subsequent procedural guidance
• IRS Private Letter Rulings — PLR 201717010 (insurance brokerage), PLR 201436001 (pharmaceutical research), and other PLRs interpreting the qualified-trade-or-business test
• ABA Tax Section — published guidance and committee reports on QSBS planning, conversion mechanics, and stacking
• California FTB guidance — including Cutler v. FTB and subsequent FTB notices on non-conformity
• State revenue department guidance — conformity statements from Wisconsin, Massachusetts, New Jersey, Pennsylvania, Alabama, Hawaii, Mississippi
• BVR / DealStats Database — observed transaction structures involving QSBS-eligible companies
• SRS Acquiom 2026 M&A Deal Points Study — rollover equity and earnout structure benchmarks

Last updated: May 16, 2026. CT Strategic Partners refreshes this report quarterly. For corrections or methodology questions, get in touch.