Incentive stock options (ISOs)

Among available stock options, ISOs are often the most tax-advantaged, but potentially complicated options to manage, especially since they entail planning for alternative minimum tax (AMT) and AMT credit, and qualified/disqualified sales. They also typically require you to have cash available to purchase stock when you exercise your options. Describing availability, vesting schedules, tax treatments, maximum grants, 83(b) eligibility, termination agreements, and detailed cash flow considerations is beyond the scope of this glossary.