Deductions & credits

@sfeldma2   You have the 600 on 1040 line 12b?  Then you are getting the Standard Deduction on line 12a.  Or the 600 charity would be added to schedule A not line 12b.  Do you have the schedule A?  How much is the deduction on line 12a?  You might be misinterpreting the amount.   What do you think your Standard Deduction should be?