Your 2023 Form 8606 should have shown $6,500 on line 14. That $6,500 should have carried forward to line 2 of your 2024 Form 8606 if you transferred in your 2023 tax file to begin your 2024 tax return. If the $6,500 is not present on line 2, be sure to go through the traditional IRA contribution section of TurboTax, indicate that you made nondeductible contributions, then enter the $6,500.
