Overview
An Incentive Stock Option (ISO) is a type of employee stock option that can only be granted to employees (not to board members or contractors) and offers preferential tax treatment under the Internal Revenue Code. With ISOs, the employee does not have to pay taxes at the time the option is granted or when it is exercised. Instead, taxes are owed at the time the shares are sold, provided certain conditions are met. This tax treatment offers potential benefits over non-qualified stock options (NSOs).
Examples
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Example 1: Employee A receives ISOs from Company XYZ.
- Grant Date: January 1, 2021, no tax liability.
- Exercise Date: April 1, 2023, no tax liability.
- Sale Date: December 1, 2025, capital gains tax is due.
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Example 2: Employee B receives ISOs from Company ABC.
- Grant Date: July 1, 2020, no tax liability.
- Exercise Date: August 1, 2022, no tax liability.
- Sale Date: November 1, 2024, capital gains tax applies based on the difference between the sale price and the exercise price.
Frequently Asked Questions (FAQs)
Q1: When are employees taxed on ISOs?
Employees are taxed on ISOs at the time they sell the shares acquired through the exercise of the option, not at the grant or exercise date.
Q2: What tax rates apply when ISOs are sold?
If holding period requirements are met (both more than 2 years from the grant date and more than 1 year from the exercise date), gains are taxed at the long-term capital gains rate. Otherwise, gains may be subject to ordinary income taxes.
Q3: What is the Alternative Minimum Tax (AMT) in relation to ISOs?
The spread between the fair market value at exercise and the exercise price may be subject to AMT in the year of exercise, which can create a tax liability even if the shares are not sold.
Q4: What happens if an employee sells ISO shares before meeting the holding period requirements?
This sale is treated as a “disqualifying disposition” and the income received will be taxed as ordinary income based on the difference between the exercise price and the market price at the time of exercise.
Q5: Can ISOs be transferred?
ISOs cannot typically be transferred except at death. They are held by the individual to whom they are granted.
Related Terms
- Non-Qualified Stock Option (NSO): A type of stock option that does not qualify for special tax treatments and requires the employee to pay taxes at the date of exercise.
- Exercise Price: The price at which an option holder can purchase the underlying stock when the option is exercised.
- Capital Gains Tax: A tax on the profit from the sale of property or an investment.
- Alternative Minimum Tax (AMT): A parallel tax system that ensures individuals and corporations with certain exemptions still pay a minimum amount of tax.
- Grant Date: The date on which a stock option or other stock-based compensation is awarded to an employee.
Online Resources
Suggested Books for Further Studies
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“Equity Compensation for Tech Employees” by Alan C. Roman
An in-depth guide to various forms of equity compensation, including ISOs, tailored specifically for employees in the tech industry. -
“Accounting for Compensation Arrangements” by Steven M. Bragg
A comprehensive overview of the accounting standards and practices associated with various compensation arrangements.
Fundamentals of Incentive Stock Options: Employee Compensation Basics Quiz
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