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Estimate vest tax

How do stock options and RSUs differ for taxes?

Options and RSUs follow different tax paths. know which events create wage income vs capital gain.

Rates and rules change. Check the tax year and last-reviewed date on each page, then confirm against IRS or state guidance before you file.

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are usually simpler timing: tax at as wages. Stock options create tax choices at exercise (and sometimes for ) and again at sale. Options can offer more control over when income hits; offer less timing control but fewer surprise tax events before .

RSUs vs stock options

Both can be part of your pay, but the tax timing and decisions differ. This is a high-level comparison — your grant documents control.

TopicRSUsStock options
What you receiveShares (or cash) after vest conditions are metThe right to buy shares at a strike price
Typical tax timingWage income at vest for many employeesOften at exercise (NSO) or sale (ISO, if qualifying)
Cash needed for taxEmployer may sell shares (sell-to-cover) for withholdingYou may need cash at exercise even if you do not sell
Price risk before tax eventValue fixed at vest — you receive stock thenSpread depends on price at exercise vs strike
ComplexityUsually simpler — vest, W-2, optional saleISO/NSO rules, AMT, holding periods add layers

Private-company options add liquidity and 409A valuation questions not covered here.

Why this happens

are a delivery of stock after conditions, income when you receive shares.

Options are the right to buy stock at a strike price. No wage income at grant for standard / in typical cases.

usually create wage income at exercise based on spread ( minus strike).

may not create regular tax at exercise but can trigger on the spread.

Selling shares after exercise or is a separate or loss event in both cases.

What to check

  • Grant type on your equity statement. vs vs .
  • or exercise dates coming in the same year as vests.
  • Whether you have cash to cover tax on exercise (options) vs ().
  • Company plan documents, post-termination exercise windows for options.
  • If you are at a startup, options may be illiquid longer than at a public company.

Common mistake

Treating options like and ignoring exercise tax: Exercising with a large spread can create a big event with no automatic unless you set it up. exercises can create with no cash from a sale.

Example scenario (hypothetical)

Illustration only, not your tax situation.

Two employees each receive $50,000 of equity value: The recipient vests $50,000 of stock and sees wage income and at . The recipient waits, exercises when spread is $50,000, and may owe wage tax on the spread at exercise without selling any shares, needing cash from elsewhere. Same headline value, different cash-flow timing.

When to get help from a tax pro

  • You have both and options or exercisable in one year.
  • You are leaving a company with unvested and unexercised options.
  • You are at a pre-IPO company planning early exercise.
  • You want to compare after-tax value of an offer vs option offer.

Related calculators

Related pages

Sources and notes

High-level comparison of option exercise timing vs RSU vest-as-wages treatment.

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.