ISO, NSO and ESPP: the planning questions each one raises
Stock options and employee stock purchase plans each follow different tax rules. Knowing which type you hold is the first step, because the questions that matter differ. This is an educational overview, not advice on whether or when to exercise.
Incentive stock options (ISOs)
ISOs can receive favorable tax treatment if holding-period rules are met, but exercising them can create alternative minimum tax (AMT) exposure. Planning questions usually center on exercise timing, AMT and cash needed to exercise.
Non-qualified stock options (NSOs)
NSOs are typically taxed as ordinary income on the spread between the exercise price and market value when exercised. Questions often focus on how much income an exercise creates in a given year and how taxes will be paid.
Employee stock purchase plans (ESPPs)
ESPPs let employees buy shares, often at a discount. Tax treatment depends on whether a sale is a qualifying or disqualifying disposition. Many people track purchase dates so they understand the treatment before selling.
What to gather
- Which types you hold and their key dates
- Exercise prices and current value
- Expiration dates on options
- Whether a CPA has modeled AMT exposure
Free Sam's List diagnostic
Take the free Equity Compensation Planning Review. Built by Sam's List. Related Sam's List profile: Malcolm Ethridge / Capital Area Planning Group.
Browse the directory
Frequently asked questions
Can I hold ISOs and NSOs at the same time?
Yes. Many employees receive both. Grant documents state which type each grant is.
Is this equity compensation guide advice?
No. Sam's List writes these guides for education. They describe common questions and processes, not advice for your specific situation.
Sam's List is a directory. Listing or paid status does not imply endorsement or ranking.