Turbo Tax and Credit Karma are coming up with two different refund amounts for my 2020 tax return

[VolvoGirl]

Then you have to compare each line and find the differences.

[VolvoGirl]

Oh do you mean the refund you received on a Card?  How much is missing?  Did you have the Turbo Tax fees deducted from your refund?  There is an Extra $40 Refund Processing Service charge (45 in California) for that.  ,

Or if the IRS Adjusted your return they will mail you a letter explaining it.  Could it be for a state refund? Federal and state refunds come separately.