Understanding Incentive Stock Options (ISOs)

Learn how Incentive Stock Options can be a powerful wealth-building tool

An Incentive Stock Option (ISO) is a type of equity compensation that allows employees to buy company stock at a predetermined price after a vesting period. Unlike Non-Qualified Stock Options (NSOs), ISOs offer preferential tax treatment such that taxes are deferred until the shares are sold, rather than being taxed as ordinary income at the time of exercise.

This tax advantage makes ISOs especially attractive for employees at startups and fast-growing companies, where the value of shares may increase significantly over time.

ISO Overview

• Eligibility Requirements: Only full-time corporate employees (not contractors or board members) are eligible to receive ISOs.
• Company Limitations: Not all companies are authorized or willing to issue ISOs.
• Alternative Minimum Tax (AMT): Exercising ISOs can trigger AMT liability, even if the shares haven’t been sold, potentially creating a surprise tax bill.
• The $100,000 Rule: The $100K rule for ISOs limits how much can receive favorable tax treatment each year. Only up to $100,000 worth of ISOs, based on the grant-date fair market value, can become exercisable in a single calendar year. Any options above that amount are automatically treated as Non-Qualified Stock Options (NQSOs) and taxed less favorably.

Important Considerations

• Confused about AMT or your eligibility?
  • We can walk through your equity package together—book a free consultation today.
• Thinking about exercising your ISOs this year?
  • We’ll help you create a tax-smart strategy tailored to your financial situation.
• Unsure if you should hold or sell? 
  • Our team can help you weigh the risk vs. reward and optimize your decision.