How do i import its deductible into my 2020 tax return

First you wait for the year to end ... then follow the screen instructions ...

How do I import my donations from ItsDeductible?

You can import your ItsDeductible donations into TurboTax Deluxe or higher:

1. Open (continue) your return in TurboTax.
2. In the search box, type donations and then click Jump to donations in the search results.
3. Answer Yes to Did you make any donations to charity?
4. On the next screen, answer Yes.
5. Follow the onscreen instructions to import your donations.

TurboTax Federal Free Edition and Basic do not support Schedule A, which is needed to report charitable donations.