RSUs vs stock options
Contemporary briefings emphasise that RSUs and stock options are distinct: RSUs convert to taxed shares on vest and are straightforward to value, while options can carry strike‑price, expiry and liquidity risks that often make them worth heavily discounting for new grads. Social commentary stresses asking about vesting, post‑termination exercise windows and whether withholding covers tax on vesting. (x.com/systemdesignone/status/2043377808139821188, x.com/BowTiedBull/status/2043094382619038019)
Restricted stock units and stock options can look similar in an offer letter, but they pay out in different ways and carry different risks. (irs.gov) A restricted stock unit is a promise to deliver shares or cash after a vesting date set by the company. Fidelity says the employee becomes the full owner on the vesting date, and Carta says the fair market value at vest is taxed as ordinary income. (fidelity.com) (carta.com) A stock option is the right to buy shares later at a fixed strike price, not a share grant itself. The Internal Revenue Service says tax treatment depends on the kind of option, and Fidelity says an exercise can require cash for the strike price, withholding, and fees. (irs.gov) (fidelity.com) That difference changes how people value an offer. A vested restricted stock unit in a public company is usually worth close to the market price of the shares, while an option is worth only the gap between the share price and the strike price, and can be worth nothing if the strike price is above the market price. (fidelity.com 1) (fidelity.com 2) Private-company equity adds another layer because employees may not be able to sell shares when taxes or exercise costs come due. Carta says some restricted stock unit plans use “double-trigger” vesting, where time alone is not enough and a liquidity event such as an initial public offering or acquisition is also required. (carta.com) The tax timing is one of the first questions to ask. The Internal Revenue Service says some private-company employees can elect to defer tax on certain qualified stock from broad-based restricted stock unit and option programs for up to five years, but that rule applies only in limited cases. (irs.gov) With restricted stock units, another practical question is whether the company’s withholding actually covers the tax bill. Fidelity’s example shows a “sell to cover” transaction in which 74 of 250 vested shares were sold to meet a $725 withholding obligation. (fidelity.com) With options, the key document is often the post-termination exercise window, the deadline to buy after leaving a job. Carta says that window is usually 90 days, and employees who cannot fund the exercise and tax impact before it closes can lose vested options. (carta.com) That is why two grants with the same headline number can have very different real value. Before comparing offers, employees need the vesting schedule, strike price, expiration date, tax withholding method, and the exact post-termination exercise terms in the grant agreement. (carta.com) (irs.gov)
