Same problem continues!Even when I enter $600 for a married couple, it reverts to $300.Please, please fix?Thanks.

Dear Turbotax,Can you please fix this simple problem so that it works properly, without any complicated workarounds?Many Thanks!

Changed to line above to 600 (allowed charitable deduction for married filing jointly), and then put in 600 on the charitable deduction line. Does not accept, a...

Same problem here. Tried full amount of donations, 300, 600, etc. All result in an error.