I still think there is a bug here. It accepts an entry of $600 for married filing jointly, but does not update 1040 10b correctly. Seems to max out at $300.
Charitable donations: The 2020 CARES Act created a $300 above-the-line deduction for cash charitable donations for 2020 tax filers who don’t itemize deductions. The CAA increased this to $600 for married couples, and extended the deduction through 2021.
