How do I report a backdoor Roth IRA contribution in TurboTax 2020?

To report a backdoor Roth IRA contribution in TurboTax 2020, you need to enter the information in the "Traditional and Roth IRA Contributions" section. Specify the amount you contributed to a traditional IRA and then converted to a Roth IRA. TurboTax will guide you through the process of reporting this transaction accurately.