Depends on your tax bracket and amount of Capital Gains and the length of time (less than 12 months or 12 months or more) you hold the position. Best thing to do is hold at least 12 months and then you have 20% long term gains.
Short term gains are based on your federal tax bracket, top tier is like 37% if you make more than 500k which i think is the plan for most of the holders here.
Long term capital gains (if you hold over a year) are 15% under 500k and 20% over 500k.
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