My income did not change from last year when I filed with Turbotax but now I'm told that I owe 264 dollars in taxes on my Federal?

[MayaD]

Did you enter all your forms and information?

Make sure the amount of taxes withheld was entered correctly.

Other reasons why you might owe this year:

1. You did not have enough taxes withheld during the year. 
2. You changed your Filing Status.
3. Number of dependents claimed this year.
4. If you are claiming a dependent who turned 17 in 2019. 

Print a copy of last year's return and make a line by line comparison with this year's return to see what have changed.