Please follow these steps in TurboTax Online to enter your total basis for 2023 and earlier years:
- Sign in to TurboTax and open or continue your return
- Under the Deductions and Credits section, select Add/Edit next to Traditional and Roth IRA Contributions
- Check the box for Traditional IRA and choose Continue
- Walk through the TurboTax interview screens and on the Any Nondeductible Contributions to Your IRA? screen choose YES and then Continue
- Enter the amount in the Total Basis as of December 31, 2023 box and click Continue
- Continue through the interview questions to complete the entry

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