Retirement Literacy Foundation · Seller Tax Education

QSBS: The Section 1202 Exclusion for Selling a C Corporation

By , founder, Retirement Literacy Foundation · Updated
Admitted to practice before the IRS.

Short answer: Qualified small business stock (QSBS) is stock in a domestic C corporation acquired at original issue. If you hold it long enough, section 1202 can exclude a large part or all of the gain from federal tax. For stock issued after July 4, 2025, the exclusion is 50% after 3 years, 75% after 4 and 100% after 5, with a per-company cap of the greater of $15 million or 10 times basis. Stock issued earlier generally needs 5 years for a 100% exclusion, capped at $10 million or 10 times basis.
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States

Not every state follows section 1202. California does not, so a California resident pays full state tax on the gain even when it is federally excluded. See the RLF study of state tax on a $1 million gain.

Common questions

How much gain can QSBS exclude?

Per company, the greater of $10 million (stock issued before July 5, 2025) or $15 million (stock issued after July 4, 2025), or 10 times your basis in the stock.

Does an S corporation qualify for QSBS?

No. The company must be a C corporation when the stock is issued and during substantially all of the holding period.

Does California allow the QSBS exclusion?

No. California taxes the gain even if it is excluded federally.

Related

More for sellers: Suspended Passive Losses When You Sell a Rental Property · Capital Loss Carryover · Real Estate Professional Status Explained · Unrecaptured Section 1250 Gain Explained · Converting a Rental to a Primary Residence, or a Home to a Rental

Sources: IRC section 1202, as amended by Pub. L. 119-21 (July 4, 2025); IRS Topic 409 for the 28% rate on the taxable part. Checked October 10, 2026.

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Hans Goldstein

Hans Goldstein, EA

Founder & Executive Director · Retirement Literacy Foundation, a 501(c)(3) non-profit
Admitted to practice before the IRS

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