QSBS and New York State: Does NY Conform to the Federal Exclusion?

Yes. New York conforms to the federal QSBS exclusion under IRC Section 1202. New York personal income tax starts from federal adjusted gross income, and the Tax Law has no modification that adds excluded Section 1202 gain back. New York City personal income tax uses the same New York AGI, so NYC residents get the same result.

In practice, if a sale of qualified small business stock produces $8 million of gain and all of it is excluded on your federal return, none of it shows up in New York AGI. A founder who lives in Manhattan pays no federal, state or city income tax on that excluded gain.

Earlier versions of this article said New York did not conform. That was wrong, and we have corrected it. The confusion usually comes from California, which does not follow Section 1202, and from proposals in Albany to change New York's treatment.

During the spring 2026 budget process, the New York Senate's one-house budget included a proposal to decouple from the federal QSBS exclusion, which would have required New Yorkers to add excluded gain back to income. Proposals like this resurface because Section 1202 got more generous under the One Big Beautiful Bill Act (P.L. 119-21), and New York's revenue cost rises automatically with federal conformity.

The proposal did not survive. The enacted revenue bill for FY2027, S.9009-C/A.10009-C, was signed on May 28, 2026 as Chapter 59 of the Laws of 2026. Its parts cover items such as a new child and dependent care credit, a tips exclusion, corporate rate extensions and New York's treatment of the federal research expensing and depreciation changes. None of its listed parts addresses qualified small business stock. We checked this in October 2026.

Treat New York's conformity as current law, not a permanent promise. Decoupling could come back in a future budget, and New York has a history of making tax changes retroactive to January 1 of the budget year. If a large exit is likely within the next two years, watch the January executive budget and the March one-house bills.

Because New York piggybacks on the federal number, the federal rules decide your New York result. There are now two sets of rules, depending on when your stock was issued.

Under the new tiers, the portion you cannot exclude is not taxed at the regular 20% capital gains rate. It is taxed at up to 28% federally under IRC §1(h)(4), plus the 3.8% net investment income tax. New York then taxes that non-excluded portion like any other capital gain.

Conformity only shelters what the federal return excludes. Three situations leave New Yorkers with a state bill:

• Gain above the cap. If your gain from one company is $25 million and your cap is $15 million, the extra $10 million is taxable federally and in New York.
• Early sales under the new tiers. Selling post-July 4, 2025 stock after three years excludes only 50%. The other 50% flows into New York AGI.
• Stock that fails a test. Secondary purchases, stock issued when the company was over the asset limit, or stock in a company that failed the active-business test does not qualify at all.

New York's top state rate is 10.9% on taxable income above $25 million, and NYC adds up to 3.876%. For example, a hypothetical NYC founder with $10 million of non-excluded gain on top of other high income could owe roughly $1.4 million in combined state and city tax, because New York phases out its lower brackets for very high earners. That is the number worth planning around, not the excluded portion.

Seed-stage Delaware C-Corps are the classic QSBS issuer, but qualification is a set of tests, not a status. For stock issued after July 4, 2025, the main requirements under Section 1202 are:

1. The issuer is a domestic C corporation when the stock is issued and during substantially all of your holding period. Delaware incorporation is fine; so is any other state.
2. Aggregate gross assets (cash plus the tax basis of other property) did not exceed $75 million at any time before the issuance and immediately after it, counting the money raised in that round.
3. You acquired the stock at original issuance from the company, for cash, property other than stock, or services. Secondary purchases do not count.
4. At least 80% of assets by value are used in an active qualified business. Software, hardware, biotech and most consumer products qualify. Consulting, financial services, law, health, engineering and architecture services, banking, hospitality and similar businesses are excluded under §1202(e)(3).
5. You hold the stock at least three years for a partial exclusion and five years for the full one.

A typical pre-seed company with $2 million in the bank passes the asset test easily. The tests that actually trip companies up are the active-business test (too much idle cash held for investment beyond working-capital allowances), redemptions around the issuance date, and an LLC-to-C-Corp conversion where the pre-conversion appreciation is not eligible.

No. Being a Delaware C-Corp satisfies only the first requirement. Each block of stock is tested separately, so founders' common issued at formation may qualify while preferred issued after the company crosses $75 million of gross assets does not.

The holding period also starts at acquisition, which interacts with vesting. If you received restricted founder stock and filed an 83(b) election, the holding period generally starts on the purchase date. Without an 83(b), each tranche is treated as acquired when it vests. Stock acquired by exercising options starts its holding period at exercise, and SAFE or note conversions start when the stock is issued on conversion.

Ask the company for a QSBS representation or a gross-asset schedule at each financing. Many companies will provide a statement on request, and having it in your files makes the claim far easier to defend later.

Because New York conforms, the main planning work is federal: maximize the excluded amount and keep stock qualified. A few moves are especially relevant to New Yorkers.

Stacking the cap. The cap applies per taxpayer per issuer. Gifts of QSBS keep their status and holding period under §1202(h), so gifts to family members or non-grantor trusts can create additional $15 million (or $10 million for older stock) caps. Trusts set up mainly to multiply exclusions face anti-abuse risk under IRC §643(f), so this needs an estate attorney.

Residency. Moving out of New York only changes the outcome for gain New York would otherwise tax, which under current law is the non-excluded portion. New York audits residency changes before large liquidity events closely, and statutory residency (a permanent place of abode plus more than 183 days in the state) can apply even if your domicile has changed.

Timing. For post-July 4, 2025 stock, waiting from year three to year five moves the exclusion from 50% to 100%. On large gains that is usually worth more than any state-level strategy.

We review QSBS eligibility for C-Corp clients at each financing and model the federal and New York result before an exit. Rules here were checked October 17, 2026; this is general information, not tax advice for your specific facts.