Many taxpayers assume they qualify because a company is a small startup, then discover at sale, or in an audit, that one test was never met. This guide walks through the tests that determine QSBS eligibility and flags where founders and investors most often slip up.

For the big-picture overview, see our complete guide to QSBS and Section 1202. The thresholds below reflect the current rules; note that some figures differ for stock acquired after July 4, 2025, which we cover in our article on the 2025 QSBS changes.

The five core QSBS eligibility tests

Think of QSBS eligibility as five gates. You have to pass all of them.

1. C corporation stock

The issuer must be a domestic C corporation when the stock is issued and, generally, throughout substantially all of your holding period. Stock in an S corporation, or an interest in an LLC or partnership, does not qualify. A company that later converts to a C corporation can begin generating QSBS, but the holding period generally starts at conversion.

2. Qualified small business (the gross-assets test)

The corporation’s aggregate gross assets must not exceed the statutory ceiling at all times before, and immediately after, the stock is issued. That ceiling is $50 million for stock issued on or before July 4, 2025, and $75 million for stock acquired after that date.

Aggregate gross assets generally means cash plus the adjusted basis of other property, with contributed property counted at fair market value. Once a company permanently crosses the ceiling, it can no longer issue QSBS, although stock issued earlier can remain qualified.

3. Original issuance

You generally must acquire the stock directly from the corporation in exchange for money, property other than stock, or services. Buying shares from an existing shareholder on the secondary market usually does not create QSBS in your hands. Special rules preserve QSBS status for stock received by gift, at death, or in certain partnership distributions.

4. Active qualified trade or business (the 80% test and excluded fields)

During substantially all of your holding period, at least 80% of the value of the corporation’s assets must be used in the active conduct of one or more qualified trades or businesses. Certain fields are excluded outright, and this is the requirement that trips up the most taxpayers.

Excluded businesses include services in health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, and brokerage; banking, insurance, financing, leasing, and investing; farming; mineral extraction; and operating a hotel, motel, or restaurant. Any business whose principal asset is the reputation or skill of one or more employees is also excluded.

5. Holding period

For stock acquired on or before July 4, 2025, you generally must hold it more than five years to claim any exclusion. For stock acquired after July 4, 2025, a tiered schedule applies: 50% at three years, 75% at four years, and 100% at five years or more. The holding period generally begins the day after the stock is issued.

The redemption trap that can undo eligibility

Even when the five tests are met, Section 1202’s anti-abuse rules can disqualify stock if the corporation redeemed shares near the time of issuance. In general terms, significant redemptions from any shareholder within a one-year window before or after issuance, measured against roughly 5% of the company’s value, can taint newly issued stock, and redemptions from the shareholder or related parties within a two-year window can do the same.

Companies that buy back equity from a departing founder or employee often have no idea they may be affecting everyone else’s QSBS eligibility.

A quick QSBS eligibility checklist

If any row gives you pause, that is the row an examiner will focus on. Sorting it out before a sale is far easier than defending it afterward. Our article on how QSBS claims are audited and defended explains what the IRS looks for, and crypto founders should also review our guide to QSBS for crypto startups, where the qualified-trade question is especially thorny.

If any item on this checklist is uncertain, it is worth resolving before a buyer’s diligence team asks about it. Our QSBS Pre-Sale Review confirms eligibility and builds the documentation file you will need.

Frequently asked questions about QSBS eligibility

What are the basic requirements for QSBS?

The stock must be in a domestic C corporation that was a qualified small business at issuance, acquired at original issuance, with at least 80% of assets used in an active qualified trade or business, and held for the required period.

What businesses do not qualify for QSBS?

Excluded fields include health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, and brokerage, plus banking and similar financial businesses, farming, mineral extraction, and hotels, motels, and restaurants, along with any business built primarily on the reputation or skill of key employees.

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

Aggregate gross assets generally cannot exceed $50 million for stock issued on or before July 4, 2025, or $75 million for stock acquired after that date, tested at and immediately after issuance.

Does buying shares from another shareholder qualify for QSBS?

Usually not. QSBS generally must be acquired at original issuance from the company. Secondary purchases typically do not qualify, though gift and inheritance rules can preserve QSBS status.

Can redemptions affect my QSBS eligibility?

Yes. Redemptions near the issuance date can disqualify stock under Section 1202’s anti-abuse rules, even for shareholders who were not involved in the buyback.

Disclaimer. This article is for general information only and is not legal or tax advice. Reading it does not create an attorney-client relationship. Tax results depend on your specific facts. Past results do not guarantee future outcomes. Consult a qualified attorney about your situation before acting.

The catch is that Section 1202 was written around traditional C corporation stock, and the way many crypto companies are built, as LLCs, foreign entities, or token projects, often puts the benefit out of reach. Qualifying is possible, but the path is narrow and easy to miss.

This article explains when a crypto or blockchain company can produce QSBS, the two places founders most often fall out of eligibility, and why the audit exposure is higher here than in almost any other setting. For the underlying framework, start with our complete guide to QSBS and Section 1202.

What QSBS for crypto startups actually requires

Nothing about Section 1202 is relaxed for crypto. The same core requirements apply: the issuer must be a domestic C corporation, the stock generally must be acquired at original issuance, the company’s aggregate gross assets must be under the statutory ceiling when the stock is issued, at least 80% of the company’s assets by value must be used in an active qualified trade or business, and the holding period has to be met.

A crypto company that satisfies all of these can produce QSBS just like any other startup. The trouble is that crypto businesses frequently stumble on two of these requirements in particular.

Problem one: the entity and the instrument

Only stock in a C corporation qualifies. That single rule knocks out a large part of the crypto world before the analysis even begins.

Many crypto ventures are organized as LLCs, partnerships, or foreign foundations, none of which issue QSBS. Just as important, tokens are not stock. Whatever a token is for tax purposes, it is not equity in a domestic C corporation, so gain on tokens does not qualify for the Section 1202 exclusion.

The same caution applies to instruments that are not yet stock, such as SAFEs, warrants, or convertible notes; the holding period and QSBS character generally turn on when actual C corporation stock is issued to you. A founder who holds tokens and LLC units may have no QSBS at all, even in a wildly successful project, while a founder who holds original-issuance stock in a U.S. C corporation may have a great deal.

The takeaway is that entity choice and how you hold your interest are decisive, and both are best addressed at formation rather than reconstructed on the eve of a sale.

Problem two: is a crypto company a “qualified trade or business”?

Even with the right entity, the company still has to be in a qualified trade or business, and Section 1202 excludes several fields that crypto companies can drift into. Businesses in financial services, brokerage, and investing are outside the benefit.

That matters because the IRS may argue that a company trading digital assets for its own account looks like an investing business, or that a trading venue or exchange looks like brokerage or financial services. A protocol, infrastructure, or software company that happens to operate in crypto is more likely to be a qualified trade or business, while a fund-like or exchange-like operation is more exposed to challenge.

There is also the 80% active-asset test. A company that holds a large treasury of digital assets relative to its operating assets can find that too little of its value is used in an active business, which can jeopardize the exclusion. Where a crypto company sits on this spectrum is intensely fact-specific, and it is exactly the kind of question examiners probe.

Why the audit exposure is higher for crypto

Crypto QSBS claims carry a double layer of risk. On top of the ordinary Section 1202 scrutiny that any large exclusion invites, crypto companies operate in an area the IRS is already examining aggressively. A QSBS position built on a crypto business can draw questions about the qualified-trade classification, the valuation of digital assets for the gross-assets and active-asset tests, and the basic record keeping that crypto ventures are notorious for lacking.

If you intend to rely on QSBS, the contemporaneous documentation has to be built as you go. Our article on how QSBS claims are audited and defended covers what that record should contain, and our guide to the Section 1202 qualification tests walks through each requirement.

Because our firm handles both sides of this problem, we can help crypto founders structure for QSBS and defend the position later. See our services for cryptocurrency accounting and audits and IRS tax audit defense.

Before a financing or sale, a QSBS Pre-Sale Review can confirm whether your company’s stock qualifies and document it while the records are still easy to gather.

Frequently asked questions about QSBS for crypto startups

Can a cryptocurrency company qualify for QSBS?

Yes, but only if it is a domestic C corporation running an active qualified trade or business and meeting the other Section 1202 requirements. Many crypto ventures are structured in ways that do not qualify.

Do tokens qualify for the Section 1202 exclusion?

No. Tokens are not stock in a C corporation, so gain on tokens is not QSBS. The exclusion applies to qualifying C corporation stock, not to tokens, SAFEs, or LLC interests.

Is a crypto exchange or trading firm a qualified trade or business?

Often it is questionable. Section 1202 excludes financial services, brokerage, and investing businesses, and the IRS may view an exchange or a firm trading for its own account as falling into those excluded fields. A software, protocol, or infrastructure company is more likely to qualify.

Does holding a large crypto treasury affect QSBS?

It can. At least 80% of the company’s assets by value must be used in the active business. A large digital-asset treasury relative to operating assets can put the active-asset test at risk.

How can a crypto founder protect a QSBS position?

Choose the right entity early, hold original-issuance C corporation stock, and keep contemporaneous records of the business activity, asset values, and issuance. Documentation built along the way is the best defense in an audit.

Disclaimer. This article is for general information only and is not legal or tax advice. Reading it does not create an attorney-client relationship. Tax results depend on your specific facts. Past results do not guarantee future outcomes. Consult a qualified attorney about your situation before acting.

You can qualify for a 100% federal exclusion under Section 1202, exclude every dollar of gain on your federal return, and still owe California income tax on the entire amount, at rates as high as 13.3%. For a large exit, that gap is not a rounding error. It can be the single biggest line item in the whole transaction.

This article explains why California treats QSBS so differently, what it means in real dollars, and how the issue collides with California residency rules for anyone thinking about leaving the state before a liquidity event. For the federal mechanics, see our complete guide to QSBS and Section 1202.

The core rule: California QSBS does not follow Section 1202

California is not a conformity state when it comes to QSBS. The federal exclusion under Section 1202 has no equivalent on your California return today. Whatever gain you exclude federally is added back for California purposes and taxed as ordinary capital gain at California’s regular rates.

There is no reduced California rate for capital gains, and there is no state-level QSBS exclusion or deferral to fall back on. In short, the federal benefit stops at the state line.

How California got here: a short history worth knowing

California once had its own QSBS provision. Former Revenue and Taxation Code Section 18152.5 allowed a 50% exclusion of gain on qualifying stock held more than five years, but it added a geographic condition the federal rule never had: the company generally had to keep at least 80% of its assets and 80% of its payroll inside California.

In Cutler v. Franchise Tax Board (2012), a California Court of Appeal held that the in-state requirements were unconstitutional because they favored California operations over out-of-state operations, violating the Commerce Clause. Rather than extend the benefit to everyone, the Franchise Tax Board initially moved to disallow the exclusion and deferral entirely. The Legislature then stepped in with AB 1412, which preserved the benefit for taxpayers who had claimed it for the 2008 through 2012 tax years.

For tax years beginning on or after January 1, 2013, however, California’s QSBS exclusion and deferral were repealed outright. The result is the rule we live with now: for a sale today, there is no California QSBS benefit at all.

Because this history is nuanced and fact-specific, anyone dealing with an older year or an unusual posture should have the details confirmed by counsel rather than relying on a general summary.

What it costs in real dollars

The practical impact is easiest to see with a simple comparison. Assume a California resident sells qualifying stock with a large gain that is fully excluded for federal purposes.

On a $10 million gain that is fully excluded federally, California can still reach the entire amount. That is why the state treatment, not the federal exclusion, is often the number that actually drives planning for California sellers.

Where QSBS collides with California residency

Once founders realize the state will tax a federally excluded gain, the natural question is whether moving out of California before the sale solves the problem. Sometimes it can, but this is exactly the area where California pushes back hardest. The Franchise Tax Board is aggressive about residency, and a departure that lines up neatly with a big liquidity event is a classic audit trigger.

Several issues have to be handled correctly. Residency is about far more than a mailing address; the FTB weighs where you actually live, work, keep family and community ties, and spend your time. The timing of the sale relative to the move matters. So does the character and source of the income, because California can tax certain California-source income even of a nonresident. Getting the sequence and the documentation right, well before the sale closes, is what separates a defensible position from an expensive one.

This is exactly the terrain our firm works in every day. If you are weighing a move ahead of a sale, our team defends California tax problems and Franchise Tax Board matters, and our related article on California residency audits explains how the state builds these cases.

Two of our reviews address this overlap directly: a QSBS Pre-Sale Review for the federal exclusion and a Residency Audit Risk Assessment for the California side of a move.

Planning ideas, and a caution

There are legitimate strategies California sellers explore, from carefully planned changes of residency to the use of trusts established outside California. Each of these carries real complexity and real audit risk, and California has specific rules designed to limit them. None should be attempted from a blog post or a message-board tip.

The right move is to model your specific facts with counsel, decide what is genuinely defensible, and build the record to support it before you sell, not after the Franchise Tax Board asks.

Frequently asked questions about California and QSBS

Does California recognize the federal QSBS exclusion?

No. California does not conform to Section 1202. Gain you exclude federally is still taxable in California under the state’s regular income tax rates.

Did California ever have its own QSBS break?

Yes. Former R&TC Section 18152.5 allowed a 50% exclusion, but it required most of the company’s assets and payroll to be in California. After the Cutler decision found those in-state requirements unconstitutional, California repealed the exclusion and deferral for tax years beginning on or after January 1, 2013.

How much can California tax on a federally excluded gain?

California taxes the full gain at its regular rates, which reach up to 13.3% for the highest earners. There is no special lower capital gains rate in California.

Can I move out of California before selling to avoid the tax?

It is possible in some cases, but a move timed to a sale is a common Franchise Tax Board audit trigger. Residency, timing, and the source of the income all have to be handled carefully and documented before the sale.

What triggers an FTB residency audit after a QSBS sale?

A recent departure paired with a large liquidity event, continued California ties, and inconsistent records are frequent triggers. Careful, contemporaneous documentation of a genuine change of residency is the best protection.

Disclaimer. This article is for general information only and is not legal or tax advice. Reading it does not create an attorney-client relationship. Tax results depend on your specific facts. Past results do not guarantee future outcomes. Consult a qualified attorney about your situation before acting.

It shortens the wait for a partial exclusion, raises the dollar cap on excluded gain, and lets larger companies still issue qualifying stock. For founders, employees, and investors, the takeaway is simple: the QSBS benefit just got bigger, but only for the right stock acquired at the right time.

This article breaks down exactly what changed, who benefits, and the crucial distinction between stock acquired before and after the effective date. For the full background on how the exclusion works, see our complete guide to QSBS and Section 1202.

What changed in the 2025 QSBS rules

Three changes stand out, and each applies to QSBS acquired after July 4, 2025.

1. A new tiered holding period

Under prior law, you had to hold QSBS for more than five years to exclude any gain at all. Sell at four years and eleven months, and you got nothing. The 2025 law replaces that all-or-nothing rule with a tiered schedule for newly acquired stock:

This is a meaningful shift for anyone who may need liquidity before the five-year mark. A partial exclusion at three or four years is now possible where none existed before.

2. A higher per-issuer cap: $15 million

The exclusion has always been capped, per company, at the greater of a dollar figure or ten times your adjusted basis in the stock sold that year. The 2025 law raises the dollar figure from $10 million to $15 million, with inflation adjustments scheduled to begin after 2026. For a founder with a large exit and a low basis, that is up to $5 million of additional gain potentially excluded per company.

3. A higher gross-assets ceiling: $75 million

To issue QSBS, a company’s aggregate gross assets generally cannot exceed a ceiling at the time of issuance. The 2025 law raises that ceiling from $50 million to $75 million. The practical effect is that somewhat larger, later-stage companies can now issue qualifying stock, expanding the universe of investments that can produce QSBS.

Old stock versus new stock: which rules apply to you

The single most important question after the 2025 changes is when you acquired your stock. The new rules apply only to QSBS acquired after July 4, 2025. Stock acquired on or before that date keeps the prior rules.

If you hold stock from an earlier investment, you do not lose anything; your stock continues under the terms that applied when you acquired it, and a full 100% exclusion may still be available if you acquired it after September 27, 2010 and hold it more than five years. The new, more generous terms are simply not retroactive.

Who benefits most from the 2025 changes

The expansion is most valuable to founders and early investors in companies formed or capitalized after the effective date, employees who receive newly issued equity in qualifying C corporations, and investors who want the option of a partial exclusion if an exit comes before year five. It also helps venture-stage companies that have grown past the old $50 million asset ceiling but remain under $75 million, because they can once again issue QSBS.

What has not changed

The core structure of Section 1202 is intact. The issuer still has to be a domestic C corporation. The company still has to conduct an active qualified trade or business, and the same excluded fields, including health, law, consulting, financial services, and businesses built on the reputation or skill of key employees, still fall outside the benefit. Stock still generally has to be acquired at original issuance. And the redemption anti-abuse rules still apply. The 2025 law made the benefit larger; it did not make it easier to qualify.

Two cautions that are easy to overlook

California still does not conform

None of this changes California’s treatment. California does not follow Section 1202, so a California resident can qualify for a full federal exclusion under the new rules and still owe California tax on the entire gain. We cover this in our article on California and QSBS.

A bigger benefit invites more scrutiny

As the dollars excluded grow, so does the IRS’s interest in making sure every requirement is actually met. Larger exclusions on newly expanded rules are exactly the kind of position examiners look at closely. If you plan to rely on the 2025 rules, build your documentation now, not after a notice arrives. Our article on how QSBS claims are audited and defended explains what that record should include.

Because the new rules apply by issuance date, many founders now hold stock under two different regimes. A QSBS Pre-Sale Review sorts out which rules apply to each block of your shares and what you can expect to exclude.

Frequently asked questions about the 2025 QSBS changes

When did the 2025 QSBS changes take effect?

The new rules apply to QSBS acquired after July 4, 2025. Stock acquired on or before that date remains subject to the prior rules.

Do the new rules apply to stock I already own?

No. The tiered exclusion, the $15 million cap, and the $75 million gross-assets ceiling apply only to stock acquired after July 4, 2025. Earlier stock keeps the rules that applied when you acquired it.

Can I now exclude gain after only three years?

For stock acquired after July 4, 2025, yes, a 50% exclusion is available at three years and 75% at four years, with the full 100% at five years. Older stock still generally requires more than five years for any exclusion.

How much can I exclude under the new per-issuer cap?

For qualifying stock acquired after July 4, 2025, the cap per company is the greater of $15 million or ten times your adjusted basis in the stock sold that year.

Does California follow the new QSBS rules?

No. California does not conform to Section 1202, so the 2025 federal changes do not reduce California tax on the gain.

Disclaimer. This article is for general information only and is not legal or tax advice. Reading it does not create an attorney-client relationship. Tax results depend on your specific facts. Past results do not guarantee future outcomes. Consult a qualified attorney about your situation before acting.

Under Section 1202 of the Internal Revenue Code, a taxpayer who holds qualifying stock in a small C corporation can exclude a large portion, and in many cases all, of the capital gain when the stock is sold. On a successful exit, the difference can be millions of dollars kept rather than paid to the IRS.

The benefit is also one of the most misunderstood provisions in the tax code, and one the IRS examines closely. Qualifying for the QSBS exclusion depends on a series of technical tests, several of which are easy to fail without realizing it.

This guide explains how the Section 1202 exclusion works, what changed in 2025, and where taxpayers get into trouble. It is written from the perspective of a firm that handles the harder end of the problem: defending these positions when the IRS pushes back.

What is Qualified Small Business Stock?

Qualified Small Business Stock is stock in a domestic C corporation that meets the requirements of Section 1202. When the requirements are satisfied and the stock is held long enough, the shareholder can exclude eligible gain from federal income tax on a sale or exchange. The policy goal is to encourage investment in small, active businesses by rewarding people who put capital into them early and hold for the long term.

Three ideas sit at the center of the QSBS rules. First, the company has to be the right kind of company, small and actively operating a qualified business. Second, you have to acquire the stock the right way, at original issuance, in exchange for money, property, or services. Third, you have to hold it long enough. Miss any one of these and the exclusion can disappear entirely.

The five tests to qualify for the Section 1202 exclusion

1. It must be C corporation stock

The issuer must be a domestic C corporation, both when the stock is issued and, generally, throughout substantially all of the taxpayer’s holding period. Stock in an S corporation, a partnership, or an LLC taxed as a partnership does not qualify. This is why the choice of entity at formation is so important, and why some companies convert to C corporation status with QSBS in mind.

2. The company must be a “qualified small business”

At all times before and immediately after the stock is issued, the corporation’s aggregate gross assets must not exceed a statutory ceiling. For stock issued on or before July 4, 2025, that ceiling is $50 million. For stock acquired after July 4, 2025, the ceiling is $75 million. “Aggregate gross assets” generally means cash plus the adjusted basis of other property, with contributed property counted at fair market value. A company that has already grown past the ceiling can no longer issue QSBS, though stock issued earlier, while the company was under the limit, can remain qualified.

3. It must be acquired at original issuance

You generally must acquire the stock directly from the corporation, in exchange for money, other property (not including stock), or services. Buying shares from another shareholder on the secondary market usually does not produce QSBS in your hands. There are important exceptions for stock received by gift, at death, or from a partnership distribution, where holding periods and QSBS character can carry over.

4. The company must run an active qualified trade or business

During substantially all of the holding period, at least 80% of the value of the corporation’s assets must be used in the active conduct of one or more qualified trades or businesses.

Certain fields are specifically excluded, including services in health, law, engineering, architecture, accounting, actuarial science, performing arts, consulting, athletics, financial services, and brokerage, along with banking and other financial businesses, farming, mineral extraction, and the operation of hotels, motels, or restaurants. Any business whose principal asset is the reputation or skill of one or more employees is also excluded.

Whether a given company clears this test is one of the most frequently litigated QSBS questions, and a common focus of IRS audits.

5. You must meet the holding period

Historically, the stock had to be held for more than five years to claim any exclusion. The 2025 legislation introduced a tiered holding period for newly acquired stock, discussed below. The holding period generally starts the day after the stock is issued.

How much gain can you exclude?

The share of gain you can exclude depends on when you acquired the stock. Congress has increased the exclusion over time, so the acquisition date matters a great deal:

Any portion of the gain that is not excluded is generally taxed as capital gain at a maximum rate of 28%, rather than the usual 15% or 20% long-term rates. For stock eligible for the 50% or 75% exclusion, a portion of the excluded gain has historically been treated as an alternative minimum tax preference item; stock eligible for the full 100% exclusion generally is not. These interactions are technical, and worth confirming with counsel before you rely on a specific number.

The per-issuer cap

The exclusion is not unlimited. For each company whose stock you hold, the amount of gain you can exclude in a given year is capped at the greater of two figures: a dollar limit, or ten times your aggregate adjusted basis in the QSBS of that company that you sold during the year.

The dollar limit was $10 million for many years and was raised to $15 million for stock acquired after July 4, 2025, with inflation adjustments scheduled to begin after 2026. Because the cap is applied per issuer, sophisticated planning sometimes involves multiplying the cap across family members or trusts, a strategy that carries its own audit risk and is covered in a separate article in this series.

The 2025 changes to Section 1202

The One Big Beautiful Bill Act, enacted in 2025, expanded the QSBS benefit for stock acquired after July 4, 2025 in three main ways. It introduced the tiered holding period so that shareholders no longer have to wait a full five years for any benefit; it raised the per-issuer dollar cap from $10 million to $15 million; and it raised the aggregate gross assets ceiling from $50 million to $75 million, letting somewhat larger companies still issue QSBS. Stock acquired on or before July 4, 2025 keeps the older rules.

We cover the details, and the old-stock-versus-new-stock question, in our dedicated article on the 2025 QSBS changes.

Deferring gain with a Section 1045 rollover

What if you need to sell before your holding period is complete? Section 1045 offers a partial answer. If you have held QSBS for more than six months and sell it, you can generally defer the gain by reinvesting the proceeds into new QSBS within 60 days, carrying your holding period forward. A rollover does not make the gain disappear, but it can preserve the path to a future exclusion. The mechanics are strict, and missing the reinvestment window forfeits the benefit.

Common traps that destroy QSBS status

Redemptions

Section 1202 contains anti-abuse rules that can disqualify stock if the company buys back its own shares around the time of issuance. In general terms, “significant” redemptions from any shareholder within a one-year window before or after issuance, measured against roughly 5% of the company’s value, can taint newly issued stock, and redemptions from the shareholder or related parties within a two-year window can do the same.

These rules catch well-meaning companies that repurchase shares from departing founders or employees without realizing the effect on everyone else’s QSBS.

Entity missteps

Because only C corporation stock qualifies, businesses formed as LLCs or S corporations often have no QSBS unless and until they convert, and the holding period generally starts fresh at conversion. The gross assets ceiling is tested at issuance, so a company that waits too long to issue equity may lose the chance.

California does not follow the federal rule

This is a critical point for our clients. California does not conform to Section 1202. A California resident can exclude 100% of a gain for federal purposes and still owe full California tax on the same gain. For founders considering a move before a liquidity event, the interaction with California residency rules is significant, and it is a frequent trigger for Franchise Tax Board scrutiny. We address this in detail in our article on California and QSBS.

Many of these traps only surface when someone reviews the company’s records line by line. If a sale is on the horizon, our QSBS Pre-Sale Review tests each requirement and documents the result before you sign.

What happens if the IRS challenges your QSBS?

A QSBS exclusion is claimed on your return, but claiming it is not the end of the story. The IRS can examine whether the company was truly a qualified small business, whether the active-business and qualified-trade tests were met, whether the stock was acquired at original issuance, and whether the holding period and dollar caps were respected. Because the dollars at stake are usually large, these examinations are thorough, and a disallowed exclusion can turn into a substantial assessment of tax, interest, and penalties.

This is where careful documentation and experienced representation matter, and we cover it in depth in our guide to how QSBS claims are audited and defended. If you are facing questions about a Section 1202 position, our team handles IRS tax audits, and where a matter cannot be resolved at exam or appeals, U.S. Tax Court litigation. We also assist with related tax problems and, for crypto and blockchain companies, cryptocurrency accounting and audits.

Frequently asked questions about QSBS

Disclaimer. This article is for general information only and is not legal or tax advice. Reading it does not create an attorney-client relationship. Tax results depend on your specific facts. Past results do not guarantee future outcomes. Consult a qualified attorney about your situation before acting.