What is QSBS and could it reduce taxes when I sell my business?
By Adam Kasick | Wealth Advisor | Updated September 2026
Qualified Small Business Stock, or QSBS, can allow eligible shareholders to exclude some or potentially all qualifying gain from federal income tax under Internal Revenue Code Section 1202. The opportunity can be significant, but eligibility depends on the company, when and how the shares were acquired, how long they were held and other requirements. This is something I want identified before a sale is finalized, not after.
Here's how I'd think about it.
If you're selling a business, the headline sale price is only part of the story. What matters to your financial life is what you actually get to keep and what those proceeds can make possible.
QSBS is one of the tax questions worth asking early because it can materially change the economics of a qualifying sale. I don't want to assume you qualify, and I don't want to discover the possibility after an irreversible transaction has already happened.
What generally has to be true?
At a high level, the stock generally must be stock of a qualifying domestic C corporation, the shareholder generally must have received the shares at original issuance, the company must satisfy gross-asset and qualified-business requirements, and holding-period rules apply. The rules changed for stock issued after July 4, 2025, including the gross-asset threshold, so the acquisition date matters.
This is a tax-planning flag, not a DIY tax conclusion.
If QSBS may apply, I want your CPA and tax attorney involved before the transaction is final. My role is to make sure the question gets asked early and that the tax answer is incorporated into the larger plan for the sale proceeds.
What would I want to know?
- Is the company a C corporation, and when did it become one?
- When and how did you acquire your shares?
- What were the company's gross assets when the shares were issued?
- What type of business does the company conduct?
- How long have you held the shares?
- Are you considering a stock sale, asset sale or another transaction structure?
- What do you want the proceeds to accomplish after the sale?
Why ask before the sale?
Because taxes, transaction structure and investment planning are all talking about the same dollars. A decision made in one area can change the choices available in another.
The goal isn't to turn you into a Section 1202 expert. It's to recognize a potentially valuable opportunity early enough for the right professionals to evaluate it.
Start the Conversation →Tax rules are complex and can change. This page is educational and is not tax or legal advice. Confirm your specific situation with qualified tax and legal professionals.
Current IRS guidance matters here.
IRS instructions describe the Section 1202 requirements, including original-issuance and qualified-business rules. They also reflect a $75 million gross-asset threshold for qualifying stock issued after July 4, 2025, and $50 million for stock issued on or before that date.