Get your taxes done using TurboTax
You are correct. You first enter a non-deductible IRA contribution to a traditional IRA account in TurboTax, then you enter the form 1099-R reporting the rollover of nondeductible contributions to the ROTH IRA. IF done properly, there will be no tax on the rollover and no deduction for contributions to an IRA.
Key things to look for in TurboTax is to make sure you designate the contributions to the traditional IRA account as non-deductible. Also, you will be asked about your basis (non-deductible contributions) in IRA accounts at end of the previous year and the value at end of the current year, you need to make sure you answer those questions properly. Also, when you enter the Form 1099-R, you need to indicate that you did a combination of rolling over, converting, or cashing out the money, and then enter the amount converted to a ROTH IRA account. Here are some screen shots:
