OK. I received some time ago CP2000 form for my 2018 tax return.
IRS caught that I didn't pay taxes on my ESPP stock I sold in 2018 year.
But they treated this income as a regular income although it was a long-term capital gain (I kept the stock longer than one year).
I payed the amount from CP2000 form to IRS even if I knew it was higher then the amount I actually owed.
I'm working on my amendment tax return now and I can't figure out where I can plug the amount I paid to IRS on CP2000 form. The only estimated tax payment available in tax amendment is for 2018 year not for 2020 year.
I also can't find a place in TurboTax where I can calculate an interest on back taxes.
Please help me to figure it out.
