I was in the process of reviewing entries on my return and going through anything I missed. I accidentally entered in the wrong amount on one of them and now I don't know how to fix it. On Form 1040, Line 20, I entered 4,719. I'm confused because I had a refund of 4,719 then when I entered that on Line 20, the refund went to 0. I don't think I did that correctly.
Line 16 I'm showing 0.
Line 17 I'm showing 2,929.
Line 18e I'm showing 1,790.
Line 19 I'm showing 4,719.
Line 20 says If line 19 is more than line 16, subtract line 16 from line 19. This is the amount you overpaid.