Testing your situation...as "single" with a Standard Deduction using the 2016 tax software, I get
You will have a Federal tax assessment of ~$20,400 (including an estimated ~$475 tax penalty for underpayment, but you may not be subject to that). State tax depends on what state you are in.
I have not included any withholding you may have already done with your paycheck, or any estimated payments you might have made already, and the STD Ded assumes you have no itemized deductions.....but you can figure the math on that yourself to see what your total tax bill is likely to be......
_________________________
Long-term holding reduces your taxes on that gain, but yes, your gain is included in your AGI for determining your marginal tax bracket.
____________*Answers are correct to the best of my knowledge when posted, but should not be considered to be legal or official tax advice.*
