Check your QSBS facts before you sell
Review seven areas under Section 1202. This is a preliminary screen for one block of stock, not a determination that you qualify. Select “Not sure” wherever the records do not establish an answer.
Limits still apply. Apply the exclusion percentage to eligible gain after the per-issuer limit. The limit generally uses the greater of the remaining applicable dollar limit or 10 times qualifying basis. The dollar regime is $10 million for pre-cutoff acquisitions or $15 million for post-cutoff acquisitions, with statutory coordination, prior-gain reductions, married-filing-separately rules and post-2026 inflation adjustments. $15 million is not a universal maximum or an automatic tax-free amount.
This screen does not determine eligible gain, state tax, AMT, NIIT, hedging restrictions or every special rule. Confirm the facts and applicable law before a sale. A proposed future sale assumes continuing compliance through that date.
Updated September 8, 2026. Keep an issuance-specific substantiation file and evidence of ongoing compliance. For a tax estimate after qualification is reviewed, use the QSBS calculator.
Get a Professional Review Before You Sell
This tool gives you a starting point — not legal advice. Before you make any decisions about your exit, talk to a startup attorney who knows QSBS inside and out.
Book a 20-Minute Intro Call → Read the Full QSBS Guide⚖️ Important Legal Disclaimer
Not Legal Advice. This tool is provided for general informational and educational purposes only. It does not constitute legal advice, tax advice, or the practice of law. The results generated by this tool are not a substitute for consultation with a qualified attorney or tax professional.
No Attorney-Client Relationship. Use of this tool does not create an attorney-client relationship between you and Joe Wallin, The Startup Law Blog, or any affiliated entity. Do not transmit any confidential information through this tool.
Accuracy Not Guaranteed. While this tool is based on the requirements of Section 1202 of the Internal Revenue Code as currently in effect, tax laws change frequently and individual circumstances vary significantly. The tool cannot account for all facts and circumstances relevant to your specific situation. Results should not be relied upon as a definitive determination of your QSBS eligibility.
Consult a Professional. Before making any decisions regarding the sale of stock, tax planning, or reliance on the Section 1202 exclusion, you should consult with a qualified attorney and tax advisor who can review your specific documentation and circumstances.
IRS Circular 230 Disclosure. To ensure compliance with requirements imposed by the IRS, we inform you that any U.S. federal tax advice contained in this tool is not intended or written to be used, and cannot be used, for the purpose of (i) avoiding penalties under the Internal Revenue Code or (ii) promoting, marketing, or recommending to another party any transaction or matter addressed herein.
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