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What tax happens when I exercise NSOs?

NSO exercise is usually a paycheck event. wage income, withholding, and possible cash due without a sale.

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Exercising non-qualified stock options () is usually a wage event: the spread between the value and your strike price is treated as , reported on your , with , even if you do not sell any shares. That means you can owe tax and need cash without having sold anything.

Why this happens

do not get the special treatment do, so the exercise spread is ordinary compensation.

Because it is wage income, your employer generally reports it and withholds tax at exercise.

If you exercise and hold, you have taxable income now but no sale proceeds to pay it with.

A later sale is a separate or loss based on the value at exercise (your basis).

What to check

  • The spread at exercise: minus your strike price.
  • How is collected, from the exercise, a sale, or your paycheck.
  • Whether you have cash to cover tax if you exercise and hold.
  • Your for the added income and .
  • Your basis for a future sale (generally the value at exercise).

Common mistake

Exercising and holding without reserving cash for the tax. The tax event and the cash event are not the same thing, you can owe tax at exercise even though you have not sold a single share.

Example scenario (hypothetical)

Illustration only, not your tax situation.

Example: Dana exercises 1,000 at a $4 strike when the value is $20. The $16,000 spread is generally on Dana's , with . If Dana holds the shares, Dana owes tax on that spread now and would report any further gain or loss only when selling later.

When to get help from a tax pro

  • You plan to exercise and hold without selling.
  • The spread is large relative to your cash on hand.
  • You exercised in one state and may sell in another.
  • You have both and in the same year.

Related calculators

Related pages

For learning, not filing

Grants, employers, and states all differ. Use your own documents and a qualified tax professional before you make decisions from this guide.