Solved
I was able to do this with taxslayer a couple of years ago, but I am unsure if this is a program limitation, if I'm just not seeing the option, or if CA law requires the penalty to be paid in full at the time of filing for tax year 2020.
If you say "I'll mail a check", TurboTax will be satisfied,
After that you can pay any amount on IRS website at
www.irs.gov/payments
OR write a check for the amount you want to pay.
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