Incentive Stock Option AMT Preference

If you exercised an incentive stock option in 2007, and did not sell the stock in 2007, enter the difference between the fair market value of the stock and the amount you paid to exercise the ISO. If your stock is not transferable, or is subject to a substantial risk of forfeiture, don't enter an amount here. You don't have to report an AMT adjustment until the shares are transferable.