I have a similar problem. The Turbotax 2020 interview is giving me obviously erroneous results for estimated taxes for 2021. I have an SEP-IRA for which I am required to take minimum required distributions. Those distributions were suspended for the 2020 tax year, leaving me with a large refund for 2020. But when I added in that amount for my 2021 estimate, Turbotax told me my estimated income for 2021 would be much lower than for 2020. Something is seriously wrong in the calculation or the interview. I am using the Desktop version on a Mac.
