Equity compensation can be a powerful wealth-building tool, but it also comes with some of the most common and costly tax surprises we see each year. As December approaches, employees with RSUs, stock options, and ESPPs often find themselves blindsided by unexpected tax bills, underpayment penalties, or missed planning opportunities. If you’ve received equity this year or exercised options, sold company stock, or had a big vesting event, this is your chance to get ahead of the year-end crunch.