I am not sure either! I think the original software either under applied tax credits or mischaracterized certain tax free income. I am fairly certain all my inputs are identical on the original software and TurboTax. TurboTax has the maximum refund guarantee whereas the original software does not, so I am inclined to trust TurboTax. I am unable to pinpoint how TurboTax’s calculation is different until it files my return and releases the forms, but I am afraid to complicate things with IRS by filing the same form twice instead of properly filing an amendment form. It doesn’t appear that TurboTax would let me file a form 1040-x before filing a form 1040 first? Thanks!
