Backdoor conversion of nondeductible IRA to Roth

Hello,

 

I am trying to figure out how to do this:

I made a backdoor conversion of $6,000 (nondeductible contribution) of IRA into Roth IRA. I ended up with extra $17.16 in interest, which clearly should be taxable.

 

My AGI is above the threshold for it to be deductible, as TurboTax pretty made me painfully aware of this.

 

Turbotax is confusing and the previous post does not make sense, e.g. "do you want to make your contribution nondeductible?", which it didn't ask me that.

 

Thank you.