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Tax

How are ISOs taxed?

Quick Answer

ISOs trigger no regular tax at exercise, but the bargain element (FMV minus strike price) is an AMT preference item that can create a large alternative minimum tax bill. Qualifying dispositions get full long-term capital gain treatment.

ISO tax events at grant, exercise, qualifying and disqualifying disposition.
Warren Team
Updated April 26, 2026
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Important Disclaimer:

The information provided is for educational purposes only and should not be considered as personalized financial advice. Warren is a registered investment advisor. Past performance does not guarantee future results. Please consult with a qualified financial advisor before making investment decisions.

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