I hear the worry here—when a stock price drops after you’ve exercised incentive stock options (ISOs), it’s natural to want to limit losses and simplify your situation. The good news is that this question has a clear framework, even if the best next step depends on your bigger tax picture.
The key rule: ISOs have two holding-period requirements
For a sale of ISO shares to receive “qualifying disposition” tax treatment, the shares generally must be sold:
- At least 1 year after the exercise date, and
- At least 2 years after the grant date
If you sell before meeting both of those timelines, the sale is generally considered a disqualifying disposition.
So, if you sell before the one-year anniversary of exercise…
In most cases, yes—selling ISO shares before one year from the exercise date is a disqualifying disposition, even if you’ve met (or will meet) the two-year-from-grant requirement.
That doesn’t mean you did anything “wrong.” It just means the tax treatment typically shifts from the special ISO rules to rules that resemble nonqualified stock option taxation for the spread.
Why this matters: what can change at tax time
With a disqualifying disposition, the gain (if any) can be split into different components, and some portion may be treated as ordinary income (often tied to the “spread” between the exercise price and the fair market value at exercise), with any additional gain/loss treated as capital gain/loss. If the stock declined after exercise, the math can get especially important.
Don’t forget the AMT angle
If you exercised ISOs last year and held the shares into year-end, you may have created an AMT (Alternative Minimum Tax) item based on the spread at exercise—even if the stock price later fell. When shares drop, it can feel frustrating to owe tax on value that no longer exists.
In some cases, selling (even via a disqualifying disposition) may help unwind exposure and potentially generate an AMT credit over time—but it’s highly situation-dependent.
A practical next step before you sell
Before placing the trade, consider coordinating with your CPA and your advisor to review:
- Your grant date and exercise date (to confirm both holding periods)
- The fair market value at exercise and current price
- Whether you triggered AMT last year
- Whether you have other gains/losses this year that could offset results
If you’d like, we can help you organize the timelines and data points so your tax professional can model scenarios—then you can make a decision that fits your cash needs, your risk comfort, and your longer-term plan.