Get your taxes done using TurboTax

As one can clearly see the calculation of $12,867 - $8,464 = $4,707 is incorrect. The correct result is $4,403 which is $304 less. I have no idea how the system could make such a strange miscalculation. I can get it right by calculator or in my head and so does for that matter e.g. the software FreeTaxUSA.

Now I need to wonder what other bugs might be in the system that I am using since 2013.