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Job Offer - Explain Stock Options [US]
There are a few other items that you should be aware of when getting options: The strike price is usually determined by an independent valuation of the common shares (called a 409a valuation). This should give you a sense on what the options are worth. Obviously you are hoping that the value becomes many multiple of that. There are two kinds in the US: Non-quals (NQO) and Incentive Stock Options (ISOs).  The big difference is that when you exercise Non-quals, you have to pay the tax on the difference between the "fair" market value on the shares and what you paid for them (the strike price).  This is important because if the company is private, you likely can not sell any shares until it is public. With ISOs, you don't pay any tax (except AMT tax) on the gain until you actually sell the shares.  You should know what kind your getting. Some plans allow for early exercise, essentially allowing you to buy the shares early (and given back if you leave before they vest) which helps you establish capital gains treatment earlier as well as avoid AMT if you have ISOs. This is really complicated direction and you would want to talk to a tax professional.  And always a good idea to know how many total shares outstanding in the Company. Very few people ask this question but it is helpful for you to understand the overall value of the options.