I found another way to do this, but I guess it is not that different from doing an override Go to forms, Est Tax Options. At the top click on "100% (110%) of your 2019 taxes". That will generate estimated tax vouchers, but let's say you want to change the amount. Click on each of the vouchers so that it has a tab in the display window. Go back to the Est Tax Options form & click on "100% of tax on your 2020 estimated taxable income". Assuming that the tax amount next to that is zero, your estimated tax vouchers under those four tabs will now be blank. Fill in the amount you want to pay with each voucher. TurboTax will retain and print these vouchers.
