Hi @Dee0622 ,
If you are using TurboTax Online, you can find the field to enter Tax instalment payments under Deductions.
If you are using TurboTax Desktop, you can enter the instalment payments on line 47600 of the T1 General in the Forms Mode. If you are using the interview mode, you can find it under other deductions.
Thank you for using Turbo Tax.
