If you went from a Traditional IRA to a Roth IRA, then this is taxable IRA conversion.

Enter the 1099-R in Federal > Wages and Income > Retirement, and then answer the questions.

To enter the 1099-R distribution/conversion from traditional IRA to Roth IRA: 

1. Login to your TurboTax Account 
2. Click on the Search box on the top and type “1099-R”
3. Click on “Jump to 1099-R”
4. Click "Continue" and enter the information from your 1099-R
5. Answer questions until you get to “Tell us if you moved the money through a rollover or conversion” and choose “I converted some or all of it to a Roth IRA”
6. On the "Your 1099-R Entries" screen click "continue"
7. Answer "yes" to "Any nondeductible Contributions to your IRA?" if you had any nondeductible contributions in prior years.
8. Answer the questions about the basis