How do I input prepaid state tax that I made in 2020 for the year 2021?

[RGB15]

In December 2020 I prepaid CA income tax for the year 2021. Can anyone advise how to input this into TurboTax? When I try to input the prepay date of 12/2020, TurboTax tells me that I can't list a prepay date prior to 1/1/21. Thanks in advance!

[DoninGA]

An estimated tax payment between 09/16/2020 and 01/15/2021 would be entered as a fourth quarter tax payment for tax year 2020.

If your CA return for 2020 did not already have this payment entered then you need to amend the 2020 CA return to add the payment you made.