I have a similar question and I don't understand there solution that was given.
My situation is the I overpaid 2019 taxes, so the overpayment was applied to the 2020 taxes. So regardless of how I paid or earned in 2020, I should not have to pay an underpayment penalty since I paid 100% of 2019 taxes. Line 8 on 2210 doesn't show 90% of 2019 but 100%. Where do I look to correct this?
