I had a windfall last quarter of 2020 with stocks etc of aprox 60 k . Unfortunately I missed the deadline for paying extra taxes 1/15/12021 but made a payment to the irs of 30k on 2/18/2021. Now I am finishing my taxes and owe an additional 5k which I plan on paying tomorrow. Do i need to put these tax payments on my 1040 or let the IRS figure it out? If I need to enter it where and how? Thanks
