@psanand wrote:
I didn't report the deposit made to IRA in 2019 TurboTax
That's the problem. In 2019 TurboTax you are required to have reported your contribution for 2019 made in 2020. Doing so will result in TurboTax generating Form 8606 if that contribution was nondeductible. The amount on line 14 of that Form 8606 will transfer to line 2 of your 2020 Form 8606.
