Deductions & credits

Thanks for your input @Hal_Al. Your assumption is correct, I meant the standard mileage allowance.

 

So if I decide to ignore it, will I have the same problem when I file 2020 taxes since I would need to show what happened to the car? 

 

And if I decide to go through with it, what is the gain or loss basis? For example, if I bought the car for $20,000 and it valued at $14,000. I'm assuming I can skip this but want to get a second opinion.

 

Thank you again for your help.