Retirement tax questions

I'm having the same issue. 

 

1) I put post-tax money in a non-deductible IRA 

2) I immediately rolled it over to a Roth 

3) I received a 1099-R for the traditional IRA distribution 

4) Add the 1099-R to Turbo Tax. My tax obligation increases 

5) I answer the question that the distribution was to a Roth conversion 

6) The tax obligation does not go away 

 

You should not have to pay tax on a non-deductible IRA to Roth conversion so why is it trying to tax me?