After you file

I believe that the second credit card charge was to upgrade the cd desktop version from basic to deluxe (which included 1 free state)

 

and the third payment on the credit card was something that the turbo tax software said that I needed to make during the final steps of the return process.  it gave me the option to have it deducted from my return or to pay it right away, and i chose to pay it right away with a credit card.