If you used TurboTax to prepare your 2022 tax return and transferred that tax file into 2023 TurboTax to begin your 2023 tax return, the amount on line 2 of the 2023 Form 8606 would normally have come from line 14 of your 2022 Form 8606, so you should examine your 2022 tax return to see if any errors were made there.
