Thanks for the detailed answer!
Also, for 2021, I am also expecting uneven capital gains. I am planning to pay estimated, but what if the estimated payments are not 4 equal parts? (e.g. if I pay $500 before April 15th in estimated and $1000 before Sept 15th)?
(In another words, I expect to sell stock for gains but I don't know how much I will be selling... I think the estimated taxes will be uneven as well for the quarter I sell).
Is there anything specific required for this process?
