QSBS by State: California Taxes It, Texas and Florida Skip It

The federal section 1202 exclusion is the headline. State conformity is the small print that determines whether the federal benefit actually lands in the founder's pocket. For most US states, the answer is clean: federal exclusion equals state exclusion, the founder pays zero combined tax on QSBS gain up to the $10 million cap per issuer per taxpayer. For five specific states — California, Pennsylvania, New Jersey, Alabama, and Mississippi — the federally excluded gain remains fully taxable at the state level, sometimes at rates that materially reduce the federal benefit.

This post is the state-by-state conformity map every founder needs before making any QSBS-related decision. For a founder in Texas or Florida, the federal exclusion is the full story — no state planning needed. For a founder in California or Pennsylvania, state planning is at least half the work. The dollar difference between getting state conformity right and getting it wrong, on a $10 million to $50 million exit, is routinely seven figures.

The 9 no-income-tax states: full conformity by default

The cleanest QSBS exit jurisdictions are the 9 states without a broad state income tax. With no state income tax, there is no statute that could tax (or not tax) capital gains — the federal exclusion is the only tax analysis required.

• Texas: No state income tax under the Texas Constitution. QSBS gain is not state-taxable regardless of source.
• Florida: No state income tax under the Florida Constitution. QSBS gain is not state-taxable.
• Nevada: No state income tax. QSBS gain is not state-taxable.
• Washington: No broad income tax. Capital gains tax under RCW 82.87 (7% on gains over $270,000 in 2026) explicitly conforms to section 1202 — federally excluded QSBS gain is also state-excluded.
• Wyoming: No state income tax. QSBS gain is not state-taxable.
• South Dakota: No state income tax. QSBS gain is not state-taxable.
• Tennessee: Hall income tax (on interest and dividends) was fully phased out by 2021. No tax on capital gains.
• Alaska: No state income tax. QSBS gain is not state-taxable.
• New Hampshire: Interest and dividend tax was being phased out and fully eliminated in 2025. No tax on capital gains.

For a founder residing in any of these 9 states at the time of the QSBS sale, the federal $10 million per-issuer per-taxpayer exclusion translates directly to a $0 combined federal-plus-state tax bill on the excluded portion of the gain. Texas, Florida, and Nevada are the most popular destinations for pre-sale relocation precisely because the state-tax outcome is unambiguously favorable.

Conforming income-tax states: most of the country

Most US states with an income tax adopt the Internal Revenue Code with limited modifications and conform to section 1202 by default. The state honors the federal exclusion, and only the federally non-excluded portion (gain in excess of the $10 million or 10x basis cap, or gain not meeting the 5-year holding period) is state-taxable.

• New York (top rate 10.9% for non-NYC residents, 14.776% with NYC for NYC residents) — conforms to section 1202. Federally excluded QSBS gain is also state-excluded.
• Massachusetts (5% flat for most income; 9% surtax over $1M) — conforms to section 1202.
• Illinois (4.95% flat) — conforms to section 1202.
• Connecticut (top rate 6.99%) — conforms to section 1202.
• Maryland (top rate 5.75% state + 3.2% local) — conforms to section 1202.
• Virginia (top rate 5.75%) — conforms to section 1202.
• North Carolina (4.5% flat in 2026) — conforms to section 1202.
• Georgia (top rate 5.39% in 2026) — conforms to section 1202.
• Colorado (4.4% flat) — conforms to section 1202.
• Arizona (2.5% flat) — conforms to section 1202.
• Michigan, Ohio, Indiana, Wisconsin, Minnesota — all conform to section 1202.
• Hawaii (top rate 11%) — partial conformity. Hawaii has its own QSBS-like exclusion under HRS 235-2.45 that may be more or less generous than federal in specific cases.
• Oregon (top rate 9.9%) — conforms to section 1202.

For founders residing in any of these states, the federal section 1202 exclusion flows through to state treatment automatically. The state-level outcome is the same as federal — zero state tax on excluded QSBS gain. State planning for QSBS purposes is generally unnecessary in these states (although residency-establishment rules still matter for non-residents claiming exclusion).

The 5 non-conforming states: where state planning is critical

Five states do not conform to section 1202 and tax 100% of federally excluded QSBS gain under their own state rules. For founders in these states, state planning is essential to preserve the federal benefit.

California (top rate 13.3%) — full nonconformity

California is the highest-stakes non-conforming state. The state historically provided a partial QSBS exclusion under Cal. Rev. & Tax Code section 18152.5 — a 50% exclusion on gain from California-based qualifying companies — but the California Court of Appeal ruled the provision unconstitutional in Cutler v. Franchise Tax Board (2012) under the dormant commerce clause because it favored California-source companies over out-of-state QSBS. Rather than expand the exclusion to all states (which would have been revenue-negative), the legislature repealed it entirely effective for tax year 2013 forward.

Since 2013, California has fully decoupled from section 1202. The state taxes 100% of QSBS gain at the standard California capital gains rate — which is the same as the California ordinary income rate (California does not provide preferential treatment for long-term capital gains, unlike federal law). For top earners, the rate is 12.3% on income over $677,275 (single, 2026 brackets), plus the 1% mental health services tax on income over $1 million — combined top rate of 13.3%.

On a $10 million federally excluded QSBS gain, California tax is approximately $1.33 million. On a $40 million per-taxpayer-stacked gain, California tax is approximately $5.32 million. The state tax on federally excluded gain is the primary driver of pre-sale relocation strategies for Bay Area founders.

Pennsylvania (3.07% flat) — full nonconformity

Pennsylvania imposes a flat 3.07% personal income tax under 72 Pa. Stat. section 7301 and does not conform to section 1202. The state taxes 100% of QSBS gain at the flat rate. On a $10 million federally excluded QSBS gain, Pennsylvania tax is $307,000. The lower rate makes Pennsylvania less painful than California or New Jersey on absolute dollars, but the nonconformity still meaningfully reduces the federal benefit.

New Jersey (top rate 10.75%) — full nonconformity

New Jersey's gross income tax under N.J.S.A. 54A:1-1 et seq. does not conform to section 1202 and taxes 100% of QSBS gain. The top marginal rate is 10.75% on income over $1 million. On a $10 million federally excluded QSBS gain, New Jersey tax is approximately $1.07 million. New Jersey's position is materially equivalent to California's in dollar impact for top-bracket exits.

Alabama (top rate 5%) — full nonconformity

Alabama's individual income tax under Ala. Code 40-18-1 et seq. does not conform to section 1202. The top rate is 5% on income over $3,000. On a $10 million QSBS gain, Alabama tax is approximately $500,000. The rate is lower than California, New Jersey, or Pennsylvania, but the full federal exclusion is still recaptured at the state level.

Mississippi (4.7% flat in 2026, phasing to 4%) — full nonconformity

Mississippi's individual income tax under Miss. Code section 27-7-1 et seq. does not conform to section 1202. The flat rate is 4.7% in 2026 (phasing down to 4% by 2027). On a $10 million QSBS gain, Mississippi tax is approximately $470,000.

Worked example: identical $10M QSBS exit, six states

Consider a founder selling QSBS for $10 million in gain, fully eligible for the federal section 1202 exclusion. Same operating outcome, same federal treatment, six different state-of-residence outcomes:

• Texas, Florida, Nevada, Washington, Wyoming, etc. (no income tax): Federal tax $0. State tax $0. Total: $0.
• New York, Massachusetts, Illinois, etc. (conforming states): Federal tax $0. State tax $0. Total: $0.
• California: Federal tax $0. State tax $1,330,000 (13.3% top rate on full $10M). Total: $1,330,000.
• New Jersey: Federal tax $0. State tax $1,075,000. Total: $1,075,000.
• Alabama: Federal tax $0. State tax $500,000. Total: $500,000.
• Pennsylvania: Federal tax $0. State tax $307,000. Total: $307,000.

A founder relocating from California to Texas before the sale saves $1.33 million on a $10 million QSBS exit. On a $40 million per-taxpayer-stacked exit, the same relocation saves $5.32 million. The dollar value of pre-sale residency planning is the central economic case for QSBS founders in California, New Jersey, and Pennsylvania.

Residency mechanics: how the state determines which taxpayer can be taxed

State authority to tax QSBS gain depends on the taxpayer's state of residence at the time of sale. California taxes its residents on worldwide income, including capital gains from stock sales regardless of where the underlying corporation is located. California does not tax non-residents on gain from the sale of corporate stock (sourcing rule for intangible property is the residence of the seller, not the location of the issuing company under Cal. Code Regs. section 17951-4(b)).

A founder who genuinely establishes residency in Texas (or any no-income-tax state) before the QSBS sale closes is not a California taxpayer on the gain. The state has no jurisdiction. The key conditions:

• Termination of California domicile. California domicile must be genuinely abandoned, with no intent to return. Documentation includes selling or renting out the California home, terminating California business and professional ties, and disengaging from California community memberships.
• Establishment of new state domicile. The new state must be genuinely embraced as the permanent home. Driver's license, voter registration, primary residence, doctors and dentists, religious or community ties, business and professional relationships, and personal belongings must all shift to the new state.
• Time-based threshold. California does not have a bright-line residency rule, but FTB audit practice generally accepts 12+ months of continuous absence with full documentation as sufficient. Establishing residency 30-90 days before a sale is not credible.
• Documentation contemporaneously. The residency change must be documented in real time — utility bills, lease or purchase records, employment changes, banking changes. Reconstructing documentation after audit is uphill.

California aggressively audits high-value residency changes that coincide with major liquidity events. The FTB's Residency Audit Unit specifically targets founders, executives, and high-net-worth individuals who relocate within 24 months of a known liquidity event. Audits typically demand 18-36 months of documentation establishing the new domicile, the absence from California, and the bona fide intent.

Washington's 7% capital gains tax: nuance worth knowing

Washington enacted a 7% capital gains tax effective for 2022 forward (RCW 82.87), upheld by the Washington Supreme Court in 2023 as an excise tax rather than an unconstitutional income tax. The tax applies to long-term capital gains exceeding $270,000 per individual in 2026 (indexed for inflation).

For QSBS purposes, Washington explicitly conforms to section 1202. Gain that is federally excluded as QSBS is also excluded from the Washington capital gains tax base. A founder selling $10 million of QSBS in Washington pays $0 federal and $0 Washington capital gains tax — the same outcome as Texas or Florida.

The Washington tax does apply to non-QSBS capital gains — sale of investment portfolio, real estate (with the Section 121 personal-residence exclusion), and non-qualifying stock. A founder who also has non-QSBS investment gains in the same year (rebalancing portfolios, selling other assets to fund a new venture, etc.) will face Washington capital gains tax on those gains. The QSBS portion is clean.

DING/NING trust situs and state-level shifting

For non-grantor trusts holding QSBS — relevant in per-taxpayer stacking strategies — the trust's state of situs determines where the trust's portion of the gain is taxed. Delaware and Nevada both have favorable trust-income tax regimes that exclude properly structured non-grantor trusts from state income tax.

A California-resident grantor who funds a Delaware DING or Nevada NING trust with QSBS can shift the trust's portion of the eventual gain away from California state taxation. The trust is a separate taxpayer; the trust's tax residence is in Delaware or Nevada; the trust's portion of the QSBS gain is not California-source income. The result: California state tax applies only to the founder's personally-retained portion, not the trust portions.

California challenges these structures aggressively under throwback rules and source-based taxation theories. The legal posture is contested but has held in several recent California appeals decisions when the trust structure is rigorously implemented — independent trustee, no California-resident trustee or distribution committee member with material discretionary control, no California-source assets within the trust other than the QSBS being shifted. For California founders unable to relocate personally before the sale, the DING/NING strategy is the alternative for shifting at least the trust portions of the per-taxpayer stack.

How the FTB and other state agencies audit QSBS exits

California's FTB Residency Audit Unit applies a documented checklist when reviewing high-value residency changes. The unit looks at:

• Where the taxpayer maintained a permanent home (rented or owned)
• Where the taxpayer's primary banking, brokerage, and professional relationships were located
• Where the taxpayer voted in elections (federal, state, local)
• Where the taxpayer maintained driver's license, vehicle registration, and other licenses
• Where the taxpayer maintained social, religious, and community ties
• Where the taxpayer's family (spouse, dependent children) was located
• Whether the taxpayer's business activities and W-2 employment continued in California
• Time spent in California vs the new state (using cell phone records, credit card geolocation, flight records)

A founder who relocates from California to Texas 18 months before a $20 million QSBS sale, with full documentation across all these vectors, has a defensible position. A founder who relocates 3 months before the sale and continues to maintain California ties is exposed. The FTB has won numerous residency cases against high-value individuals who failed to fully sever California ties.

Other state planning issues that interact with QSBS

Beyond direct state conformity, several state-level issues can affect QSBS outcomes:

• State sourcing of compensation income. Many founders receive earn-out payments or post-closing consulting agreements that may be characterized as compensation rather than capital gain. Compensation income is sourced where the services are performed — a former California employee receiving consulting compensation for California services may still owe California tax even after relocating.
• Trust distributions to non-grantor trust beneficiaries. If the QSBS trust eventually distributes the gain to beneficiaries who are California residents, the gain may be California-taxable to the beneficiary at distribution, even if the trust itself was Delaware-resident.
• State estate tax. Some states have their own estate tax with lower thresholds than the federal $13.99 million exemption — including Massachusetts ($2M), Oregon ($1M), and Washington ($2.193M). A QSBS founder with a $30M+ exit who remains in one of these states faces state estate tax on the post-sale net worth.
• Local income tax. New York City imposes a separate income tax (up to 3.876% top rate) on NYC residents in addition to New York State's 10.9%. Even though New York State conforms to section 1202, NYC's own tax provisions should be checked.

Decision framework: which states matter for which founders

The state-conformity analysis is binary in most cases:

• If you are in California, New Jersey, or Pennsylvania: State planning is essential. Pre-sale relocation to a no-income-tax state, combined with DING/NING trust situs for per-taxpayer stacking, is the standard playbook. Begin 18-24 months before anticipated exit.
• If you are in Alabama or Mississippi: State exposure exists but is smaller. For exits under $5M, the state tax may not justify the relocation cost. For exits over $20M, relocation analysis is worth the time.
• If you are in any other state: Federal QSBS exclusion translates directly to combined federal-plus-state tax-free treatment. No state-specific planning needed beyond confirming federal qualification.
• If you are already in a no-income-tax state: Federal QSBS planning is the full story. Verify section 1202 qualification, structure the deal as a stock sale, and ensure 5-year holding period compliance.

Key takeaways

• Most US states conform to federal section 1202 QSBS treatment. The 9 no-income-tax states (Texas, Florida, Nevada, Washington, Wyoming, South Dakota, Tennessee, Alaska, New Hampshire) and most conforming income-tax states (New York, Massachusetts, Illinois, and many others) preserve the federal exclusion at zero state cost.
• Five states do not conform: California (top 13.3%), Pennsylvania (3.07% flat), New Jersey (top 10.75%), Alabama (top 5%), and Mississippi (4.7% in 2026). These states tax 100% of federally excluded QSBS gain at their own state rates.
• California is the highest-stakes non-conforming state because of its rate (13.3% top) and the concentration of QSBS-eligible founders. On a $10M federally excluded gain, California state tax is approximately $1.33M.
• Pre-sale relocation to a no-income-tax state can eliminate the state tax entirely, provided residency is genuinely established and documented at least 12-24 months before the sale. California aggressively audits high-value residency changes.
• Washington's 7% capital gains tax explicitly conforms to section 1202 — federally excluded QSBS gain is also state-excluded in Washington, making it functionally equivalent to Texas/Florida/Nevada for QSBS purposes.
• DING/NING non-grantor trusts in Delaware or Nevada can shift trust portions of QSBS gain away from California or other non-conforming home states, mitigating exposure when personal relocation is not feasible.
• The dollar value of getting state conformity right on a $10M-$50M exit is routinely $1M to $7M. For founders in non-conforming states, state planning should begin 18-24 months before anticipated exit.