Equity Compensation · 12 min read
QSBS and California: The Exclusion California Doesn’t Follow
Section 1202 lets a federal taxpayer exclude gain on qualified small business stock: 100% after five years for most stock issued since September 28, 2010, and, for stock issued after July 4, 2025, 50% at three years, 75% at four, and 100% at five, capped at $15 million per company. California does not conform, so a California resident pays California tax on the whole gain at rates up to 13.3%. Stock issued after a company's gross assets passed $50 million ($75 million for post-July 4, 2025 issuances) is not QSBS, which rules out most employee stock at large late-stage companies.
Qualified small business stock is one of the few places in the tax code where a large gain can be excluded from federal income tax entirely. It is also one of the places where California most visibly parts ways with federal law. Below: the Section 1202 tests, the rules that changed for stock issued after July 4, 2025, why employee stock at a large late-stage company usually does not qualify, and what a California resident owes on a gain the IRS ignores. Figures are for the 2026 federal tax year and California’s 2025 rate schedule, the latest published; confirm your own facts with a CPA or tax counsel, because the tests turn on company records you may not hold.
What is qualified small business stock?
Stock in a domestic C corporation that you acquired from the company itself, while the company was still small, and have held long enough. Section 1202 lets a non-corporate taxpayer exclude a percentage of the gain on stock that meets four tests (26 U.S.C. §1202(c), (d) and (e)):
- C corporation. The issuer must be a domestic C corporation at issuance and during substantially all of your holding period. Stock in an LLC taxed as a partnership or in an S corporation does not qualify unless the entity converts and issues new stock.
- Original issuance. You must have acquired the stock “at its original issue,” directly or through an underwriter, for money or property other than stock, or “as compensation for services.” Shares issued to an employee on an RSU settlement or an option exercise are original issuances; shares bought from another holder, including in a tender offer or a secondary sale, are not.
- The gross-assets test. The company’s aggregate gross assets must not have exceeded the limit at any time before the issuance or immediately after it: $50 million for stock issued on or before July 4, 2025, and $75 million for stock issued after that date, indexed for inflation after 2026.
- Active business. During substantially all of your holding period, at least 80% of the company’s assets by value must be used in the active conduct of a qualified trade or business. Fields such as health, law, accounting, consulting, financial services, banking, insurance, farming, hotels, and restaurants are excluded.
Then comes the holding period, and the percentage of gain excluded, which depend on when the stock was issued.
What changed for stock issued after July 4, 2025?
Three things: the exclusion now phases in from year three, the per-company cap rose to $15 million, and the gross-assets ceiling rose to $75 million. The 2025 tax act (Public Law 119-21) amended Section 1202 for stock acquired after its enactment date, which the statute calls the applicable date (26 U.S.C. §1202(a)(4) and (b)(1), as amended by Pub. L. 119-21). Stock acquired on or before that date keeps the rules that applied when it was issued.
| Rule | Stock acquired on or before July 4, 2025 | Stock acquired after July 4, 2025 |
|---|---|---|
| Minimum holding period | More than 5 years | 3 years for a partial exclusion; 5 years for the full exclusion |
| Percentage of gain excluded | 100% for stock acquired after September 27, 2010; 75% for stock acquired February 18, 2009 through September 27, 2010; 50% before that | 50% at 3 years, 75% at 4 years, 100% at 5 years |
| Cap on excludable gain | The greater of $10 million, reduced by gain excluded on the same company’s stock in earlier years, or 10 times the basis of the stock sold in the year | The greater of $15 million, reduced the same way and indexed for inflation after 2026, or 10 times basis |
| Company gross-assets ceiling at issuance | $50 million | $75 million, indexed for inflation after 2026 |
Two mechanics apply to whatever is not excluded. Gain that would have qualified but for the percentage limit is “section 1202 gain,” taxed at a maximum federal rate of 28% rather than 20% (26 U.S.C. §1(h)(1)(F) and (h)(7)). So a three-year sale of post-2025 stock excludes half the gain and taxes the other half at up to 28%, plus the 3.8% net investment income tax. Excluded gain, by contrast, is never taken into account in computing taxable income, and the net investment income tax reaches only net gain “to the extent taken into account in computing taxable income” (26 U.S.C. §1411(c)(1)(A)(iii)), so a fully excluded gain carries no federal income tax and no net investment income tax.
The holding period runs from the day the stock is issued to you: the exercise date for options, and for restricted stock the vesting date unless an 83(b) election was filed at grant (26 U.S.C. §83(f)). Our separate article on the 83(b) election covers that timing.
Why is employee stock at a large late-stage company usually not QSBS?
Because the gross-assets test is applied when your shares are issued, not when the company was founded. A company that was small in its first years can issue qualified stock to its founders and first employees, then cross $50 million (or $75 million) in gross assets and never issue qualified stock again. Employees who join afterward, or who exercise options and settle RSUs afterward, receive stock that fails the test on the day it is issued, however long they hold it. The trap inside that rule: an option granted while the company was small produces stock only when it is exercised, and the test looks at the company’s assets at exercise.
SpaceX illustrates the scale of the gap. Its June 2026 prospectus reports $12.3 billion of proceeds from stock sales in 2024 alone (SpaceX Form 424(b)(4) prospectus, June 11, 2026, cash flows from financing activities), so the asset ceiling was passed long before any recent grant, exercise, or RSU settlement. The public record does not show when the company first crossed $50 million, so whether any founder-era shares once qualified is a question for counsel with access to the company’s books; we draw no conclusion about any individual’s shares. Former xAI employees whose awards converted in the February 2026 merger have a further question, whether any qualified status carried across the exchange under Section 1202(h)(4), which again belongs with counsel. A careful analysis often ends with “not QSBS,” and that answer is worth having before an exit is planned around an exclusion that does not exist.
The same reasoning applies at the other large technology employers: stock issued by a company with tens of billions in assets is outside the statute regardless of how early the employee joined, and shares bought in a tender offer from another holder fail the original-issuance test as well.
Why doesn’t the exclusion work in California?
Because California never adopted it. The Franchise Tax Board’s guide to federal and state differences states, under its heading for qualified small business stock, that federal law allows the Section 1202 exclusion and that “California law does not conform,” and it instructs taxpayers who claim the exclusion federally to “enter the entire gain realized” on California Schedule D (FTB Publication 1001 (2025), Supplemental Guidelines to California Adjustments, page 11). California taxes capital gains as ordinary income, with no preferential rate (FTB, capital gains and losses).
For 2025, the latest published schedule, the top 12.3% bracket begins at $742,953 of taxable income for a single filer and $1,485,906 for a married couple filing jointly (FTB 2025 California tax rate schedules). On top of that, California imposes “an additional tax… at the rate of 1 percent on that portion of a taxpayer’s taxable income in excess of one million dollars” (Cal. Rev. & Tax. Code §17043), renamed the Behavioral Health Services Tax for tax years beginning in 2025 (FTB 2025 Form 540 booklet, What’s New). A large exit therefore lands in a 13.3% marginal bracket. A California resident who sells qualified small business stock owes nothing federal on the excluded gain and 13.3% to Sacramento on most of it.
Does moving to Texas before the sale avoid the California tax?
Only if you have become a genuine nonresident of California before the sale, and residency is a facts-and-circumstances question that California examines closely. The Franchise Tax Board’s residency guide says that “generally, your state of residence is where you have your closest connections,” and it lists the factors it weighs: where you spend your time, the location of your home, family, and business, where you vote and hold a driver’s license, where your professionals and memberships are, and the permanence of your work assignments in California (FTB Publication 1031 (2025), Guidelines for Determining Resident Status). Anyone who spends more than nine months of a year in California is presumed to be a resident. Gain on a stock sale by a true nonresident is generally not California-source income, but the wage element of options and restricted stock earned while working in California remains taxable by California under its equity-compensation sourcing rules (FTB Publication 1004, Equity-Based Compensation Guidelines). Texas levies no personal income tax (Tex. Const. art. 8, §24-a). Our separate article on moving from California to Texas before a liquidity event covers the residency file in depth.
What about stacking the cap with trusts or gifts?
Strategies exist to multiply the per-taxpayer cap, typically by gifting qualified stock to family members or non-grantor trusts before a sale so that each recipient has a cap of their own. They involve gift tax reporting, trust design, timing, and anti-abuse rules, and the results depend on details we cannot verify in a general article. They require tax counsel, and they must be set up well before a transaction. California’s non-conformity does not change with the structure: a California-resident recipient still owes California tax on the gain.
An illustrative example: the federal exclusion and the California tax on the same gain
The founder below is hypothetical and the figures are round numbers. A married founder filing jointly received common stock at original issuance in 2019, when the company had well under $50 million in gross assets, and paid $20,000 for it. The company has been an operating C corporation throughout. In 2026, more than five years after issuance, the founder sells the stock in an acquisition for $8,020,000, a gain of $8,000,000. The household’s other income already exceeds the $613,700 threshold at which the 20% federal capital gains rate begins (Rev. Proc. 2025-32, section 4.03), and it exceeds the top California bracket, so the marginal rates below apply to the whole gain.
| Tax on the $8,000,000 gain | Stock is QSBS (2019 issuance) | Stock is not QSBS |
|---|---|---|
| Gain excluded federally (100%, within the $10 million cap) | $8,000,000 | $0 |
| Federal capital gains tax at 20% | $0 | $1,600,000 |
| Net investment income tax at 3.8% | $0 | $304,000 |
| Total federal tax | $0 | $1,904,000 |
| California tax as a California resident at 13.3% (12.3% plus 1%) | $1,064,000 | $1,064,000 |
| Total, California resident | $1,064,000 | $2,968,000 |
| Total, Texas resident with no California-source gain | $0 | $1,904,000 |
The exclusion is worth $1,904,000 to this household federally, and California’s non-conformity claws back $1,064,000 of it. Had the stock been issued after July 4, 2025 and sold after only three years, the federal side would exclude half the gain and tax the other $4,000,000 at up to 28% plus 3.8%, and California’s number would not change.
How we approach a potential QSBS exit
We start by establishing whether the stock qualifies at all, because the answer changes every downstream decision: the issuance date and acquisition path for each lot, the company’s gross assets at each issuance, its entity history, and the holding period, with counsel confirming anything that depends on the company’s books. For founders and owners this is part of the exit work we do with business owners; for employees it sits inside equity compensation and concentrated stock and, for pre-IPO holders, pre-IPO planning. Then we layer the state: where the household lives at the sale, where it will live afterward, and what income remains California-source can drive a number larger than the federal tax. That analysis, and the coordination of the sale with charitable gifts, the estate plan, and the rest of the year’s income, runs through our tax planning process with the household’s CPA. What to do with the proceeds is covered in planning after a large gain.
Questions worth answering before an exit
- Was each lot acquired from the company at original issuance, or from another holder?
- What were the company’s gross assets immediately before and after each issuance, and who can document that?
- Was the company a C corporation at issuance and since, and does it pass the active-business test?
- When does each lot reach three, four, and five years, counting from exercise, vesting, or an 83(b) election date?
- Which cap applies to each lot, $10 million or $15 million, and how much has been used in prior years?
- Where will we be resident on the sale date, and would California treat us as a nonresident on the facts?
- Is any part of the gain California-source wage income under the equity-compensation sourcing rules?
- If gifting or trust strategies are on the table, has counsel been engaged early enough to set them up before the transaction?
What this does not mean
Nothing here concludes that any company’s stock is or is not qualified small business stock, and the SpaceX discussion describes a public filing, not any individual’s shares; whether a particular lot qualifies depends on company records that only counsel with access to them can confirm. Nothing here is a recommendation to sell, hold, or buy any security, or to move to another state. And it is not a substitute for a return prepared with your facts: the 2025 changes, the pre-2025 rules, the 28% rate on non-excluded gain, California residency, and the sourcing of equity compensation each turn on details a CPA or tax counsel should verify before a sale is signed.
Frequently asked questions
Does California recognize the QSBS exclusion?
No. The Franchise Tax Board states that California law does not conform to the federal Section 1202 exclusion and requires the entire gain to be reported on California Schedule D. California taxes the gain as ordinary income, at rates that reach 12.3% plus a 1% additional tax on taxable income over $1 million.
What are the QSBS rules for stock issued after July 4, 2025?
The exclusion is 50% after three years, 75% after four, and 100% after five. The per-company cap is the greater of $15 million, indexed for inflation after 2026, or 10 times the basis of the stock sold, and the company’s gross assets may not have exceeded $75 million at or before issuance. Stock acquired on or before July 4, 2025 keeps the earlier rules: a five-year holding period, 100% exclusion for stock acquired after September 27, 2010, and a $10 million or 10-times-basis cap.
Is my employee stock at a large late-stage company QSBS?
Usually not. The gross-assets test is applied when your shares are issued, which for options is the exercise date and for RSUs the settlement date. Once a company’s gross assets pass the ceiling, stock issued afterward cannot qualify however long it is held. Only shares issued while the company was still under the limit are candidates, and that requires the company’s records to confirm.
How much of the gain is taxed if I sell QSBS after three years instead of five?
For stock issued after July 4, 2025, half the gain is excluded at three years and the other half is section 1202 gain, taxed federally at up to 28% plus the 3.8% net investment income tax. Stock issued on or before that date has no partial exclusion; it must be held more than five years for any exclusion at all.
If I move to Texas before selling, does California still tax the gain?
Not if you are a genuine nonresident on the sale date and the gain is not California-source. California judges residency by where your closest connections are and presumes residency for anyone in the state more than nine months of the year. The wage portion of options or restricted stock earned while working in California stays California-source even after a move. Document the move well before the sale.
Can I multiply the QSBS cap by gifting shares to trusts?
Strategies exist that give each recipient a cap of their own, typically through gifts to family members or non-grantor trusts before a sale. They require tax counsel, careful timing, and gift tax reporting, and they do not change California’s treatment for a California-resident recipient.
Sources and further reading
- 26 U.S.C. 1202, partial exclusion for gain from certain small business stock, as amended by Pub. L. 119-21 (July 4, 2025)
- 26 U.S.C. 1(h)(1)(F) and (h)(7), 28 percent rate on section 1202 gain
- 26 U.S.C. 1411(c)(1)(A)(iii), net investment income measured by net gain taken into account in computing taxable income
- 26 U.S.C. 83(f), holding period for restricted property
- Rev. Proc. 2025-32, section 4.03, 2026 maximum 15 percent capital gains rate amounts
- California Franchise Tax Board, Publication 1001 (2025), Supplemental Guidelines to California Adjustments: qualified small business stock, page 11
- California Franchise Tax Board, capital gains and losses: taxed as ordinary income
- California Franchise Tax Board, 2025 California tax rate schedules
- California Revenue and Taxation Code section 17043, 1 percent additional tax on taxable income over $1,000,000
- California Franchise Tax Board, 2025 Form 540 booklet, What's New: Behavioral Health Services Tax
- California Franchise Tax Board, Publication 1031 (2025), Guidelines for Determining Resident Status
- California Franchise Tax Board, Publication 1004, Equity-Based Compensation Guidelines
- Texas Constitution, Article 8, Section 24-a
- Space Exploration Technologies Corp., Form 424(b)(4) prospectus dated June 11, 2026, cash flows and the xAI merger
- The Tax Adviser, Revisiting Sec. 1202: strategic planning after the 2025 OBBBA expansion (December 2025). Secondary source.
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