Yeah - options are taxed on exercise, not on grant (that’s the dispute with your original comment). Also, you’re taxed on the spread at exercise between the st

Yeah - options are taxed on exercise, not on grant (that’s the dispute with your original comment). Also, you’re taxed on the spread at exercise between the strike price and the fair market value at the time of exercise. If you’re able to exercise when the shares are granted (which early employees can often do by early exercising unvested shares) then there is no spread and there is no tax (at time of exercise, you still pay tax when you eventually sell the shares). Doing this and filing an 83b election with the IRS is important for people joining a startup where they hold lots of equity that’s valued near zero. It’s even a little more complicated than that if you get ISOs since you can exercise some of them tax free until you hit AMT (but AMT has not increased over time so this is less useful than it used to be). NSOs don’t have this ability. RSUs are different and you do get taxed on grant and some are withheld to cover (FB started this and they’re colloquially called FB-style RSUs). This is a relatively recent invention that started because private companies with high valuations had options with strikes too expensive for normal employees to exercise prior to the mandatory ten year expiration. Also old employees who held the option contracts wouldn’t be able to pay the exercise tax on the spread you mention and would hit the 10yr expiration (at which point they need to make a loan shark deal or risk floating a lot of cash). This used to not be an issue because companies didn't stay private this long. With RSUs employees don’t have to worry about any of this, but they lose more on grant to income tax than they could by exercising and holding options optimally. RSUs aren’t strictly better though because if you can exercise options you can hold the stock for 1yr and get long term cap gains which is 15% up to 400k and 20% after. This is a lot more potential upside than just getting hit with income tax. Though in CA you still get hit with a large percentage state income tax on it anyway. (13% after 1M I think). All of the above commentary is unrelated to a wealth tax (or capping net worth) which I think is dumb policy. This grew into a kind of long comment, but if you’re dealing with equity it’s worth learning this stuff for yourself since leveraging equity effectively is probably the best way to actually get wealth in a timeframe shorter than a lifetime of index funds investing.