Get your taxes done using TurboTax

As of 3/1, the form is implemented in TT and listed as "available" on the forms page.

However,...

There is a mistake on the form as currently implemented in TT desktop, and perhaps all versions. Specifically if you have an overpayment in the first quarter/two quarters because of the covid change, it does not properly apply to the third quarter. The mistake can be corrected by overriding line 18 column b, which is blank, with a 0. However, if you override an entry, then TT will not allow you to e-file.

Hopefully the IRS is not making this error, but just TT, in which case if the IRS calculates the penalty, you should get the right result. This situation only applies if you have an overpayment in quarter 1/2 (combined this year.)