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Thank you, this is helpful.  It got me part of the way there.  The only gaps are how do I apply the Qualified Small Business Stock treatment to my long term capital gains?  ...and there is also a rule that if your AGI is over $1MM, you need to pay 90% of your 2022 taxes, and not 110% of your 2021 taxes.  I see an option for 90% of 2022, but my question is, if I received all of the capital gains in Feb of 2022, do I need to pay all of the estimated taxes in April, rather than splitting it into 4 equal payments as turbotax suggests?