TurboTax made an update in their software to the federal filling for the 2020 Charitable Contribution Carryover, that is significant. This update was not applied to my current file, I only discovered it by re-entering all the same data into a new file this morning, because of a quirk in the software that would not allow me manually enter 1099 data into a previous listed 1099 provider that would not populate. By entering this data into a new file, this resulted in going from taxes owed of $1,848, to a refund of $4,811, under this second saved file. I was skeptical of this huge change, but here is a rather technical article of what I found concerning the change under the CARES Act related to this (scroll to the 7th paragraph).
https://www.thetaxadviser.com/issues/2020/dec/changes-charitable-giving-rules-2020.html
In my case, working on my uncle's return, his AGI is $137,932. In 2020, he made charitable cash contributions of $26,743. He was allowed to use $68,966 of a 144,877 charitable contribution carryover (50%) and also use the full $26,743 for a total of $95,709 charitable deduction. So this update for Turbotax seems to be correct. I would recommend you check this calculation if you entered your data before this week, as it did not get applied to my original file.
Turbotax still has an error in the NC return software, that allows charitable contributions in excess of 100%, where NC did not adopt the CARES Act and limits it to 60%. This has not been corrected. I also posted this under the general Tax filing area because of this change and perhaps not correctly being brought forward into saved files before this change was made.
