I'm going to receive company stock options in my new job with the lower of the price on my start date and 1 year later (minus 15%). Lets assume that on year later I'm going to buy the stocks. If I'm going to sell the stock within 1 year of my purchase date, do I need to pay short term capital gain tax? Or does my start date of employment count as the counter for the short/long term capital gain? Or do I need to income tax on the entire amount?