I have an ending balance on my "charitable donation carryforward" from previous years. This year, I am able to use them. Does Turbo tax account for that,or do I reenter?

If you transferred your TurboTax return from last year into this year's return, TurboTax should have carried forward any unused amounts. But, it doesn't hurt to confirm.

To navigate the Donations entry section in your return, select Find in the upper right corner of your return, type Donations Profile and select Go.