Employee Stock Options
Employee stock options give the holder the right to purchase company shares at a predetermined price (the exercise/strike price). Both types have a vesting schedule (period before options can be exercised) and an expiration date. The two types (ISOs and NQSOs) have very different tax treatments.
Terminology note: The spread at exercise (FMV − exercise price) is also called the bargain element. Both terms refer to the same amount.
Incentive Stock Options (ISOs)
ISOs offer the most favorable tax treatment but come with strict rules.
- Who can receive them: Employees only (not independent contractors, consultants, or board members)
- Exercise price must be at least fair market value (FMV) on the grant date
- $100,000 annual vesting limit - only ISOs covering stock worth up to $100,000 (based on FMV at grant date) may become exercisable in any calendar year; excess is treated as NQSOs
- Maximum 10-year term: ISOs must be exercisable within 10 years of the grant date (5 years for employees who own 10%+ of the company's voting stock). NQSOs have no statutory time limit on the exercise window.
ISO Tax Treatment:
| Event | Regular Tax | Alternative Minimum Tax (AMT) |
|---|---|---|
| Grant | No tax | No tax |
| Exercise | No tax (no ordinary income) | Spread (FMV - exercise price) is AMT preference item |
| Qualifying disposition (sale) | Entire gain taxed as long-term capital gains | AMT credit may apply |
| Disqualifying disposition (sale) | Spread at exercise taxed as ordinary income; additional gain as capital gains | N/A |
ISO Holding Requirements
To receive the favorable long-term capital gains rate, the employee must hold the shares for:
- At least 1 year after exercise, AND
- At least 2 years after the grant date
If the employee sells before meeting both holding requirements, the gain is treated as a disqualifying disposition - the spread at exercise is taxed as ordinary income, with any additional gain as capital gains.
Exam Tip: Gotchas
- ISOs can only be granted to employees. If the question mentions a consultant or independent contractor receiving options, it must be an NQSO.
- ISOs have no regular income tax at exercise, but the spread is an AMT preference item that can trigger alternative minimum tax.
- ISO holding requirements: 1 year after exercise AND 2 years after grant. Both must be met. Missing either one triggers a disqualifying disposition.
Nonqualified Stock Options (NQSOs)
NQSOs have simpler rules but less favorable tax treatment.
- Who can receive them: Anyone (employees, independent contractors, consultants, board members)
- Exercise price can be set at any price (may be below FMV)
- No annual dollar limit on grants
NQSO Tax Treatment:
| Event | Tax Treatment |
|---|---|
| Grant | No tax (unless option has readily ascertainable FMV, which is rare) |
| Exercise | Spread (FMV - exercise price) taxed as ordinary income; subject to income tax withholding and payroll taxes |
| Sale | Gain/loss from exercise-date FMV taxed as capital gain/loss (short-term or long-term depending on holding period) |
- Company tax deduction: Yes; the company deducts the ordinary income recognized by the employee at exercise
Exam Tip: Gotchas
- The company gets NO tax deduction for ISOs (qualifying disposition). The company only gets a deduction for NQSOs, equal to the ordinary income the employee recognizes.
ISO vs NQSO Comparison
| Feature | ISO | NQSO |
|---|---|---|
| Eligible recipients | Employees only | Anyone (employees, contractors, directors) |
| Tax at exercise | No regular income tax (AMT may apply) | Ordinary income on the spread |
| Qualifying disposition | Entire gain = long-term capital gains | N/A (no qualifying disposition concept) |
| Holding period for favorable treatment | 2 years from grant + 1 year from exercise | Standard capital gains holding period from exercise date |
| Annual limit | $100,000 FMV vesting per year | No limit |
| Exercise price | Must be at least FMV at grant | Any price |
| Employer deduction | No deduction (qualifying disposition) | Deduction equal to employee's ordinary income at exercise |
Think of it this way: ISOs reward patience. Hold long enough and the entire gain gets the favorable capital gains rate. NQSOs are taxed immediately at exercise as ordinary income, but the company gets a tax deduction in return. ISOs are better for the employee; NQSOs are better for the company.