Qualified Small Business Stock (QSBS): The Founder & Fund Practitioner’s Resource

TL;DR. Section 1202 lets a founder or fund-LP exclude up to 100% of federal capital gain on qualifying C-corp stock held for more than five years, capped at the greater of $10 million or 10× basis per issuer per taxpayer. Multiply taxpayers via non-grantor trusts and the cap multiplies. Mind the redemption windows, the $50 million asset cap, the qualified-trade-or-business test, and your state’s conformity. If you sell before five years, §1045 rollovers preserve QSBS character. This page is the working guide.

Quick self-check: do you have a QSBS position?

Run through these five questions before reading further. If every answer is yes, you likely have a §1202 position worth planning around. If any answer is no, you may have lost or never had a QSBS position — and the rest of this page tells you why and what to do.

1. Was the stock issued by a domestic C corporation, and is the company still a C corp today? If the company has ever been an LLC or S corporation since you received the stock, the §1202 clock has reset or the stock may not qualify at all.

2. Did you receive the stock at original issuance — directly from the company in exchange for cash, property (other than stock), or services? Secondary purchases (from another shareholder) do not qualify in your hands, with limited exceptions for gifts, transfers at death, and partnership distributions to partners.

3. At the time of issuance, were the company’s aggregate gross assets under $50 million? If the company crossed the $50 million asset cap before your stock was issued, that issuance is not QSBS.

4. Is the company actively engaged in a qualified trade or business — and not in any of the excluded categories (health, law, consulting, financial services, banking, insurance, brokerage, hospitality, mining, farming, etc.)?

5. Have you held the stock for more than five years (or do you plan to before disposing of it)? If not, §1045 rollover may preserve the benefit; see the dedicated section below.

If you can answer yes to all five, you likely have a QSBS position. The next question is how big: the per-issuer cap is the greater of $10 million or 10× your basis. For high-basis founders or for multiple-trust stacking, the upside can be much larger than the headline $10 million number.

What §1202 actually offers

For stock acquired after September 27, 2010 and held for more than five years, all gain on a qualifying sale or exchange is excluded from federal gross income (IRC §1202(a)(4)). The excluded gain is not an AMT preference item (IRC §1202(a)(4)(C)), and it is not subject to the 3.8% Net Investment Income Tax under §1411. Effective marginal federal rate on excluded gain: zero.

The exclusion is per-taxpayer, per-issuer, capped at the greater of (i) $10 million in cumulative excludable gain reduced by gains excluded in prior years on the same issuer’s stock, or (ii) 10 times the taxpayer’s aggregate adjusted basis in the stock disposed of in that year (IRC §1202(b)(1)). For a founder who paid $10,000 for founder shares, the practical cap is $10 million. For a holder with a $5 million basis from a property contribution, the 10× multiplier opens the gate to $50 million of excluded gain.

Exclusion percentage by acquisition vintage

The exclusion percentage depends on when the stock was acquired:

Acquisition window	Exclusion	AMT preference?	NIIT applies?	Statute
After Sept. 27, 2010	100%	No	No	§1202(a)(4)
Feb. 18, 2009 – Sept. 27, 2010	75%	Partial	Partial	§1202(a)(3)
Aug. 11, 1993 – Feb. 17, 2009	50%	Yes	Yes	§1202(a)(1)

Stock issued in the past fifteen years is almost always 100%-exclusion stock. Older vintages should be modeled separately.

Why this matters now. §1202 is one of the few remaining federal provisions that meaningfully advantages domestic small-business equity investment over alternatives, and it has been the focus of recurring legislative attention. Founders and sponsors should confirm the per-issuer cap, gross-asset cap, and holding-period schedule against the most current statutory text before relying on the figures here.

Qualifying stock: the five conditions

1. Domestic C corporation

The issuer must be a domestic C corporation when the stock is issued and during substantially all of the taxpayer’s holding period (IRC §1202(c)(1), §1202(c)(2)(A)). LLC interests, S corporation stock, foreign corporations, and partnership interests do not qualify. The single most common QSBS-killing decision is the early-stage S election or LLC formation that gets retained too long. The conversion to a C corp resets the issuance date for §1202 purposes; the holding-period clock starts there, and pre-conversion appreciation in the founders’ hands does not benefit from the exclusion.

2. Original issuance

The stock must be acquired directly from the corporation in exchange for money, other property (not stock), or as compensation for services (IRC §1202(c)(1)(B)). Secondary purchases never qualify in the buyer’s hands, with limited exceptions under §1202(h) for transfers by gift, at death, or in certain partnership distributions to partners.

3. Qualified small business (the asset cap)

The corporation’s aggregate gross assets — measured on a tax-basis convention with appreciated contributed property valued at fair market value — must not exceed $50 million at all times before and immediately after the issuance (IRC §1202(d)). Once the company crosses $50 million, future issuances are not QSBS, but stock issued before the bust remains qualifying. Sequence matters: a $40 million Series B before a planned $30 million Series C closes the QSBS window for the Series C primary shares, and a §351 contribution of appreciated IP can lift the gross-asset measurement by the FMV of the contributed property regardless of basis (IRC §1202(d)(2)(B)).

4. Qualified trade or business (the active business test)

At least 80% of the corporation’s assets (by value) must be used in the active conduct of one or more qualified trades or businesses throughout substantially all of the taxpayer’s holding period (IRC §1202(e)(1)). Cash and securities held as working capital count as active for up to two years from receipt (§1202(e)(6)); held longer, they convert to passive and threaten the 80% test.

The excluded categories under §1202(e)(3) are broad and disqualifying: health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage services, banking, insurance, financing, leasing, investing, and farming. §1202(e)(4) further excludes hospitality, mining, and oil-and-gas businesses.

The “consulting” carve-out has caught more software and managed-services companies than founders expect, because companies that deliver services to enterprise clients sometimes get characterized as consulting rather than as products. Treas. Reg. §1.1202-2 and a series of IRS private letter rulings have addressed the SaaS / consulting line — generally finding that companies whose primary business is selling software products at scale, rather than providing customized professional services, qualify as active trades or businesses, but the analysis is fact-intensive and must be confirmed for the specific company.

5. Five-year hold

The stock must be held for more than five years(IRC §1202(a)(1)). The clock starts on the original issuance date. Conversions, splits, reorganizations, and recapitalizations have specific tacking and substitution rules under §1202(f), §1202(h), and §1202(i) that should be reviewed before any structural transaction.

The per-issuer cap and the 100% exclusion

The §1202 cap is calculated per taxpayer, per issuer, per year of disposition (IRC §1202(b)(1)). The “per taxpayer” piece is what enables stacking strategies. The “per issuer” piece means a founder with QSBS in three different portfolio companies has three separate caps.

The cap is the greater of two figures:

$10 million absolute cap. Cumulative across all years; reduced by any §1202 gain previously excluded on the same issuer’s stock by the same taxpayer.
10× basis multiplier. Ten times the taxpayer’s aggregate adjusted basis in the QSBS disposed of in the taxable year. Calculated annually; can produce a much larger number than the $10M absolute cap for taxpayers with high basis.

For most founders with low basis (founder shares purchased for nominal consideration), the practical cap is the $10M absolute number. For taxpayers who contributed appreciated property, exercised options at significant strike prices, or acquired QSBS in §351 transactions, the 10× multiplier governs.

Worked example: the $40 million founder exit

Maria forms a Delaware C corporation in 2020. She receives 5,000,000 shares of common stock at $0.001 per share — total basis $5,000. The company never elects S status, never converts to an LLC, and never crosses the $50 million asset cap before Maria’s shares are issued. The business — a B2B software product — is a qualified trade or business under §1202(e). Maria holds her shares continuously through a sale of the company in 2026 (six-year hold).

At sale, Maria’s 5,000,000 shares are sold for $40,000,000. Her gain is $39,995,000.

Without §1202 planning: Maria’s gain is taxed at long-term capital gains rates (20% federal) plus NIIT (3.8%), for a federal tax liability of approximately $9.5 million. State tax on top of that depending on her residence.

With §1202 (no stacking): Maria’s per-issuer cap is the greater of $10M or 10× her $5,000 basis = $10M. She excludes $10 million of gain. Remaining $29,995,000 is taxed at 20% + 3.8% = approximately $7.1 million federal. §1202 saved her $2.4 million on this exit.

With QSBS stacking (next section): Maria pre-exit gifts shares to four non-grantor trusts. Each trust gets its own $10M cap. Maria’s personal cap covers another $10M. Total exclusion: $50M. Federal tax on this exit: approximately zero.

The math is straightforward. The structure has to be built before the term sheet, not after.

Stacking the cap with trusts and gifts

The §1202 exclusion is per-taxpayer. Multiply the number of taxpayers and you multiply the cap. This is QSBS stacking, and for a founder whose company is on a path to clear the $10 million cap on a single holder, it is often the difference between a tax-efficient exit and a federal check that approaches the size of a Series A round.

The §1202(h) tacking rule

QSBS character carries forward through three categories of transfers — gifts, death, and partnership distributions to partners (IRC §1202(h)(1) and (2)). The donee’s holding period tacks onto the donor’s (§1202(h)(2)(C)), the original-issuance status carries over (§1202(h)(1)(A)), and the donee can claim §1202 on a subsequent qualifying sale up to the donee’s own per-issuer cap. This is the engine of stacking.

What does not carry §1202 character: sales (the buyer never gets QSBS), transfers to grantor trusts that are later toggled in ways that constitute deemed sales, transfers in liquidation of an entity, and transfers via redemption or recapitalization that fail §1202’s specific tacking rules under §1202(f).

Non-grantor trust strategy

A non-grantor trust is a trust whose income is taxed at the trust level (or distributed to beneficiaries), not to the grantor. For §1202 purposes, a properly structured non-grantor trust is a separate taxpayer with its own $10 million / 10× basis cap.

Drafting precision matters. The trust must avoid grantor trust status under IRC §§671–679: no retained reversion (§673), no power to revoke (§676), no power to control beneficial enjoyment (§674), no toggling powers, and careful treatment of administrative powers (§675). Distributions to the grantor or the grantor’s spouse must be limited or barred. An independent trustee is essential. Situs in a no-income-tax state — Nevada, South Dakota, Delaware, Tennessee, Wyoming, or Florida — preserves the federal benefit without state tax drag on accumulated income.

Sequencing the gift

Two timing rules dominate. First, gift before the liquidity event — the further from the term sheet, the better. A transfer made the day before signing a definitive sale agreement raises hard valuation questions and step-transaction risk. Second, the gift can be made at any point in the five-year window without resetting the QSBS clock, because the donee tacks the donor’s holding period under §1202(h)(2)(C). The donee’s own cap then governs the exclusion at the donee’s eventual sale.

Practical sequencing. If the company is on a high-growth path, the QSBS-stacking conversation belongs before the Series B closes — when valuations are still low enough that gift exemption goes far, and when the timeline to exit is still long enough to defuse step-transaction concerns.

Worked example: stacking a $60 million exit to zero federal

Continue Maria’s facts. In 2023, three years before her exit, Maria expects the company will be worth $60 million at exit but the current 409A valuation supports a per-share price of $0.50 (so 1,000,000 shares are worth $500,000 today). Maria takes the following structuring steps:

Spousal Lifetime Access Trust (SLAT) #1 funded with 1,000,000 shares. SLAT is non-grantor (drafted with no §674–676 strings), with Maria’s spouse as discretionary beneficiary, independent trustee, situs in South Dakota. Gift of $500,000 reported, lifetime exemption used.
Non-grantor trust for Child A funded with 1,000,000 shares. Independent trustee, no grantor strings.
Non-grantor trust for Child B funded with 1,000,000 shares. Independent trustee, no grantor strings.
Charitable Lead Annuity Trust (CLAT) funded with 1,000,000 shares. A charity benefits during the term; remainder to children.
Maria retains 1,000,000 shares personally.

In 2026, the company sells for $60/share. Each shareholder realizes $60M / 6M shares = $60M total split as follows:

Holder	Shares	Sale proceeds	Cap	Gain excluded	Federal tax
SLAT #1	1,000,000	$10,000,000	$10M	$10M	$0
Non-grantor Trust A	1,000,000	$10,000,000	$10M	$10M	$0
Non-grantor Trust B	1,000,000	$10,000,000	$10M	$10M	$0
CLAT	1,000,000	$10,000,000	$10M	$10M	$0
Maria (personal)	1,000,000	$10,000,000	$10M	$10M	$0
Total	5,000,000	$50,000,000	$50M	$50M	$0

If Maria had retained all 5,000,000 shares personally, only $10M of the $40M+ gain would be excluded; the remaining ~$30M would have generated approximately $7.1M of federal tax. The stacking structure costs gift-exemption usage and trust administration, but saves seven figures in federal tax — and the assets are now held in vehicles that protect them from creditors and that benefit children, spouse, or charity by design.

§1202(g): QSBS through pass-through vehicles

For sponsors of venture, growth, and lower-middle-market private equity funds investing in C-corp portfolio companies, §1202(g) is one of the most under-discussed levers in fund structuring. It is the provision that allows the §1202 gain exclusion to flow up through partnerships and S corporations to the ultimate individual investor.

How the pass-through works

When a partnership holds QSBS and disposes of it for a gain, IRC §1202(g)(1) allows each individual partner to claim the §1202 exclusion on the partner’s allocable share of the gain, subject to the same rules that would apply if the partner had held the stock directly — including the per-issuer cap, the five-year hold, and the issuer-level qualification tests under §1202(c)–(e).

Three partner-level conditions narrow this benefit (IRC §1202(g)(2)):

The partner must have held the partnership interest at the time the partnership acquired the QSBS.
The partner must hold the partnership interest continuously from acquisition through disposition.
The partner’s eligible amount is capped at the partner’s percentage interest in the partnership at the time of the QSBS acquisition.

Parallel rules under §1202(g)(3) extend this treatment to S corporations and certain other pass-through structures.

Fund-structuring implications

Blocker corporations are §1202 killers for LPs. A blocker C corporation that holds the QSBS interrupts the pass-through chain — gain at sale is realized by the blocker, taxed at 21%, and only the after-tax distribution flows to LPs without §1202 character. Tax-exempt and foreign LPs need blockers for UBTI and ECI reasons, but US taxable LPs should structure into a parallel partnership-vehicle path that holds QSBS directly.

Side cars and AIVs need careful planning. A separate SPV formed to hold a particular investment works for §1202 if the LP committed at formation. LPs who join later miss the at-acquisition test under §1202(g)(2)(A).

Carried interest holders face complications. The conservative position — and the one most fund counsel adopts — is that a vested profits interest received in connection with services qualifies, with the GP’s eligible percentage measured at the QSBS acquisition date.

Fund-of-funds and tiered partnerships work, with friction. Each layer must independently satisfy §1202(g). Tracking complexity scales with the number of tiers, and most fund administrators are not staffed to model multi-tier QSBS pass-through cleanly.

Why this matters for fund marketing

A growth fund with a portfolio of C-corp software companies that generates a few large §1202 winners can deliver after-tax LP IRRs that materially exceed the comparable PE fund’s, even with similar gross returns, because the §1202 exclusion is worth roughly 23.8% on excluded gain. Communicating this benefit accurately in LP reporting — calculating each LP’s §1202-eligible share at each disposition — is a fund-administration function that many sponsors underinvest in. Sponsors who can deliver §1202 to LPs have a marketable advantage over those who cannot.

Six common disqualifiers

Most QSBS losses are not the result of dramatic decisions; they are the product of routine corporate activity that no one connected to §1202.

1. Redemptions in the danger windows

§1202(c)(3) imposes two redemption traps. The “significant redemption” rule (§1202(c)(3)(B)) disqualifies all stock issued during a one-year window — beginning on the date of any redemption that involves more than 5% of the aggregate value of the corporation’s stock — measured one year before and one year after the redemption. The “related-party redemption” rule (§1202(c)(3)(A)) disqualifies stock issued to a particular holder if any redemption from the same holder (or related parties under §267(b)) occurs in a two-year window, with a $10,000 / 2% de minimis exception under §1202(c)(3)(A) and the regulations thereunder.

Stock buybacks in the run-up to a financing — even small repurchases of departing employees’ shares — can disqualify newly issued primary stock for QSBS if they fall within the windows. Diligence on QSBS positions must trace every redemption in the company’s history.

2. Conversion or restructuring that destroys C-corp status

S elections, conversions to LLC, and certain reorganization patterns reset or destroy QSBS character. The QSBS holding period starts at the C-corp conversion date, not at any earlier LLC formation date. The §1202(h)(4) substituted-basis rules govern certain reorganizations and may preserve QSBS character if structured carefully — but the analysis turns on whether the new corporation itself satisfies the §1202(c)–(e) requirements. Always confirm the original C-corp issuance date, which often differs from the company’s “founding” date.

3. The asset cap bust

The $50 million gross-asset test under §1202(d) is measured at all times before and immediately after the issuance. A $20 million company with $35 million in cash on hand from a prior round is over the cap. A subtle trap: appreciated property contributed to the company is measured at fair market value at contribution under §1202(d)(2)(B), not at basis — so a founder contributing IP worth $20 million in a §351 transaction lifts the company’s gross-asset count by $20 million, even if the property has zero tax basis.

4. Active business test failure

The 80% active-asset requirement under §1202(e)(1) applies throughout substantially all of the holding period. Cash and securities held as working capital count as active for up to two years from receipt (§1202(e)(6)); held longer, they convert to passive. A company that raises a large primary round and parks the proceeds for three years has a §1202 problem on stock issued during the parking period. Real estate holdings under §1202(e)(7) and portfolio investments under §1202(e)(5) have additional limitations that should be evaluated for any company with significant non-operating assets.

5. Excluded service businesses

Health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, brokerage services, banking, insurance, financing, leasing, investing, and farming are excluded categories under §1202(e)(3). §1202(e)(4) further excludes hospitality, mining, and oil-and-gas businesses. The “consulting” category in §1202(e)(3) has been the most contested in IRS guidance and PLR practice, particularly as applied to software and managed-services companies.

6. Tier-of-intermediaries problems

§1202 generally does not flow up through corporate tiers. A C-corp parent owning a C-corp subsidiary can sometimes use the §1202(e)(5)(A) look-through rules if the parent holds more than 50% of the sub by vote or value, allowing the parent to count its proportionate share of the sub’s qualifying-trade-or-business activities. Holding company structures owning multiple subs are more complicated; many configurations fail the active-business test at the parent level despite meeting it at each operating sub.

§1045 rollovers: selling before five years

What happens when the company sells in year four? §1045 of the Code provides a rollover mechanism that lets a taxpayer who has held QSBS for more than six months sell that stock, reinvest the proceeds in new QSBS withinsixty days, and defer the gain (IRC §1045(a)). Holding periods stack under §1045(b)(4), basis carries over, and QSBS character is preserved.

Mechanics

Election requirements are tight. The original QSBS must be held more than six months (§1045(a)(1)). Reinvestment in stock of one or more other qualified small businesses must occur within sixty days (§1045(a)(2)). The election is made on the federal return for the year of sale via specific designation on Form 8949 and Form 4797 as applicable. Deferred gain reduces the basis of the replacement QSBS dollar for dollar (§1045(b)(3)). The replacement stock’s holding period for §1202 purposes tacks onto the original under §1045(b)(4).

Excess proceeds that are not reinvested are taxable in the year of sale at long-term capital gains rates (assuming the original hold was over a year). Partial rollover is permitted; only the reinvested portion is deferred.

Strategic uses

Founder takes early liquidity but redeploys. A founder selling Company A in year four can roll proceeds into Company B at original issuance, defer the gain, and clear §1202 on Company B’s stock at the eighteen-month mark from the rollover.
Fund-level rollover preserves QSBS for LPs. A fund whose portfolio Company A exits in year four can elect §1045 at the fund level under the partnership rules in §1045(b)(5), reinvest in Company B, and roll the deferred gain forward to LPs.
Consolidation in a venture portfolio. Stakes in three early-stage C-corps acquired at different times can be partially consolidated by selling two and rolling into a new platform issuance of the third.

Pitfalls

The replacement company must independently satisfy all QSBS rules at the rollover. Buying secondary shares in an existing portfolio company does not work; the replacement must be a primary issuance. The sixty-day window is firm. The election is irrevocable. For partnership-level §1045 elections under §1045(b)(5), eligible partners are determined under rules similar to §1202(g) — partners must have held their interests at the time of the original QSBS acquisition, and the partnership’s hold counts.

Worked example: the year-four exit and rollover

David receives QSBS in Company A in 2022 (basis $10,000). In 2026, four years into his hold, Company A sells for a price that produces $8,000,000 of gain to David. He has not yet hit the five-year mark, so direct §1202 treatment is unavailable. Three options:

Option 1: Take the gain and pay tax. David recognizes $8M long-term capital gain, taxed at 20% + 3.8% NIIT = approximately $1.9M federal.

Option 2: §1045 rollover into a new C-corp at original issuance. Within 60 days of the Company A sale, David identifies Company B (a new venture in formation that meets §1045’s QSBS requirements) and invests $8M for newly issued stock. He elects §1045 on his 2026 return. Result: $0 federal tax in 2026. His basis in Company B is $10,000 (carried over). His holding period in Company B for §1202 purposes starts at his original 2022 acquisition date — meaning he passes the five-year mark on the Company B stock by 2027, after only one year of holding it.

Option 3: Partial rollover. David rolls $5M into Company B and pockets $3M. He recognizes $3M gain in 2026 (federal tax ~$0.7M) and defers $5M into Company B with the same QSBS-tacking effect as Option 2.

The §1045 election is one of the few tax-deferral mechanics that preserves rather than merely postpones a tax benefit. For founders who exit early and want to redeploy into new ventures, it is the difference between a one-time tax event and a continuous §1202 strategy across multiple companies.

State conformity at a glance

State income-tax treatment of §1202 gain follows three patterns. Most states conform via reference to federal AGI or taxable income; a handful break with federal treatment; and no-income-tax states make the issue moot.

Conforming states (selected)

Most states pick up federal §1202 treatment automatically through their starting-point conformity to federal AGI or taxable income. New York, Massachusetts, Illinois, New Jersey, Connecticut, Maryland, Virginia, North Carolina, Georgia, Ohio, Michigan, Minnesota, Colorado, Arizona, and most others fall into this group.

Non-conforming and partial-conforming states

State	Treatment	Authority
California	Does not conform; full federal exclusion is added back to state taxable income.	Cal. Rev. & Tax. Code §17131.5 (and predecessors).
Pennsylvania	Does not conform to federal §1202 exclusion for state purposes.	Pennsylvania Personal Income Tax law; full gain taxable at state level.
Mississippi	Limited conformity / non-conformity for QSBS exclusion purposes.	Confirm against current Mississippi Code provisions.
Alabama	Partial / non-conformity; verify before relying.	Alabama Code title 40.
Wisconsin	Limited or non-conformity historically; verify under current Wisconsin statutes.	Wis. Stat. ch. 71.

No-income-tax states (issue is moot)

Florida, Texas, Nevada, Tennessee, Washington (with caveats for capital-gains tax on high earners), Wyoming, South Dakota, Alaska, and New Hampshire (interest/dividends only). Founders contemplating a major exit who can establish residency in one of these states well in advance of sale often do so.

Practical residency planning

State conformity alone does not save the tax — residency at the time of sale governs. Establishing residency in a conforming or no-tax state requires real changes (driver’s license, voter registration, primary residence, days physically present, professional and personal connections) and should be done well in advance of any exit transaction. Non-conforming states have aggressive audit programs targeting partial-year residents who claim out-of-state status during high-income years.

Frequently asked questions

My company started as an LLC. Can I still get QSBS treatment? Yes, but the holding period and asset-cap test reset at the C-corp conversion. The QSBS clock starts on the date the LLC converts to a C corporation. Pre-conversion appreciation is built into the founders’ basis at conversion and does not get §1202 treatment; only post-conversion gain is QSBS-eligible.

Can a married couple stack two §1202 caps by filing separately? The clean answer is unsettled. Joint filers are treated as one taxpayer for §1202 purposes; some practitioners take the position that separate filings allow separate caps, but the IRS has not formally blessed that approach. The conservative planning move is to use non-grantor trusts to multiply caps rather than to rely on filing-status arbitrage.

Does QSBS apply to state taxes? It depends on the state. See the state conformity section above. Most states conform; California and a few others do not.

Does §1202 apply to QSBS held by an IRA or 401(k)? No. The exclusion is unnecessary inside a tax-advantaged retirement account, and the rollover and stacking strategies do not apply.

What documentation should I keep to prove QSBS qualification? At minimum: the stock-purchase agreement reciting original-issuance status; corporate records showing the C-corp formation or conversion date and the gross-asset position at issuance under §1202(d); a memorandum from counsel addressing the qualified-trade-or-business test under §1202(e) as of issuance; and contemporaneous records of any redemptions, recapitalizations, or restructurings during the holding period. The §1202 audit-defense file is built over years, not weeks.

Are §1202 rules likely to change? Section 1202 has been the subject of recurring legislative attention. Reform proposals affecting the per-issuer cap, the gross-asset cap under §1202(d), and the holding-period schedule have been part of recent tax legislation discussions. Practitioners should confirm the current state of the law before relying on the figures and rules summarized here.

If my fund holds QSBS, do my LPs automatically get the exclusion? Not automatically. They get the exclusion only if §1202(g) applies — which generally requires that they held their interest in the fund at the time the fund acquired the QSBS, that they continue to hold continuously through the disposition, and that the fund’s structure does not interrupt the pass-through chain (no blocker corporations between the fund and the QSBS).

Can I claim §1202 if I exercised an option and held the stock for five years? Yes, if the option exercise was treated as original issuance (the typical case for an ISO or NSO exercise), the stock acquired at exercise can be QSBS, and the five-year hold runs from the exercise date.

What about secondary purchases of QSBS in a tender offer? Secondary purchases generally do not qualify for §1202 in the buyer’s hands — the original issuance requirement under §1202(c)(1)(B) is not satisfied. Limited exceptions exist for transfers under §1202(h) (gifts, death, partnership distributions to partners), but a normal tender or secondary share purchase does not.

Sources & authorities

Statutes

IRC §1202 — Partial exclusion for gain from certain small business stock. Core operative provision; subsections (a) through (j) cover the exclusion percentage, per-issuer cap, qualifying conditions, redemption rules, transferee tacking, and reporting.
IRC §1045 — Rollover of gain from qualified small business stock. Permits deferral on QSBS held more than six months and reinvested within sixty days.
IRC §1411 — Net investment income tax. §1202-excluded gain is excluded from “net investment income,” confirming the 0% effective federal rate on excluded gain.
IRC §§267, 351, 671–679, 7701 — Cross-referenced provisions governing related-party redemptions, capital contributions, grantor trust status, and entity classification, each of which interacts with §1202 planning.

Treasury regulations

Treas. Reg. §1.1202-2 — Active business requirement under §1202(e). Addresses the working-capital safe harbor, asset-use measurement, and look-through rules for subsidiaries.
Treas. Reg. §1.1045-1 — §1045 rollover mechanics for individuals and partnerships, including the partnership-level election.

§1202 has comparatively few final regulations relative to other Code sections; much of the operative guidance is in the statute itself, supplemented by IRS notices, private letter rulings, and chief counsel advice.

IRS guidance

The IRS has issued numerous private letter rulings and chief counsel advice memoranda interpreting the §1202(e)(3) “consulting” / “services” line, particularly for software, SaaS, managed-services, and pharmaceutical companies. The guidance pattern: the IRS focuses on whether the company’s revenue derives primarily from a productized offering versus customized professional services, on the role of human expertise in the value delivered, and on the scale and standardization of the customer base. PLRs apply only to the requesting taxpayer and do not constitute binding authority for others. Specific PLR and CCA citations should be confirmed via Westlaw, Bloomberg Tax, or the IRS Bulletin before reliance.

Treatises and practice materials

Bittker & Lokken, Federal Taxation of Income, Estates and Gifts — comprehensive QSBS coverage in the chapter on capital gains and losses.
Mertens, Law of Federal Income Taxation — §1202 coverage in the chapters addressing capital gains and small business taxation.
BNA / Bloomberg Tax Management Portfolio — the QSBS-related portfolios in the capital-gains and small-business series; see also the Tax Practice Series.
CCH Federal Tax Service and RIA Federal Tax Coordinator — operational practice materials with worked examples.
Practical Law (Thomson Reuters) — practice notes on QSBS qualification, redemption-window analysis, §1045 rollovers, and §1202(g) partnership planning.

Case law

QSBS case law is comparatively thin because most §1202 disputes resolve at the IRS audit or PLR level, and the exclusion’s mechanics are largely deterministic. The Tax Court has addressed §1202 holding-period issues, the gross-asset test, and the active-business / qualified-trade-or-business analysis in a series of decisions; conflicts of laws between QSBS state conformity and resident-state taxation have produced state-court decisions in California and a handful of other non-conforming jurisdictions. Citations to the leading cases should be verified in current Westlaw or Lexis before publication.

State conformity

State conformity to federal §1202 follows three patterns: full conformity (most states, via reference to federal AGI or taxable income); partial or non-conformity (California — Rev. & Tax. Code §17131.5 and predecessors; Pennsylvania; Mississippi; Alabama; Wisconsin); and no-income-tax states (Florida, Texas, Nevada, Tennessee, Washington, Wyoming, South Dakota, Alaska, New Hampshire), where the issue is moot. Confirm conformity and any state-specific add-back rules in the taxpayer’s resident state before structuring around §1202.

Working with Montague Law

Montague Law advises founders, family offices, and fund sponsors on structuring entities and transfers to maximize §1202 benefits and to avoid the common QSBS-killing pitfalls. Our work spans entity formation, gift and trust planning, fund structuring, and exit-stage tax positioning.

Specifically, we help with:

Pre-incorporation structuring — choosing the entity that preserves §1202 from day one.
Stacking and trust planning — drafting non-grantor trusts that hold QSBS for separate-taxpayer benefit, including SLATs, dynasty trusts, and CLATs.
Fund formation and §1202(g) preservation — designing partnership and SPV structures that preserve QSBS character for LPs and that survive carried-interest, blocker-corp, and side-car complications.
Pre-exit diligence — running the §1202 audit eighteen months before a sale to identify and address redemption windows, asset-cap busts, and active-business questions before they become buyer concerns.
§1045 rollover planning — structuring early-exit reinvestments to preserve QSBS character through the new venture.
State residency and conformity planning — moving founders out of non-conforming states well in advance of liquidity events.

Contact: john@montague.law

This page is provided for general informational purposes and does not constitute legal or tax advice. Federal tax law evolves; the rules summarized above reflect Section 1202 as in effect through 2025 and may have been amended. Statutory and regulatory citations herein should be verified against current authority before reliance on a specific transaction. Consult counsel for advice on your particular facts.