CSS profile “Federal taxes paid”

Hi, I’m trying to fill out the css profile for the first time and one of the required fields is asking for “federal taxes paid” and says it’s on line 14 of the 1040 form for 2019. But, on the form for line 14 it says “subtract line 12b from line 13b” and the amount listed for 14 is $0 (because 12b and 13b list the same amount). Is this really the amount of federal taxes paid?

Is the “federal income withheld” amount listed on the w2 forms not federal taxes paid? I’m not really sure if I should list the $0 and if that’s correct, or if the federal income withheld amount is what I should write instead.

0 is correct. If federal taxes =0, the amount withheld will be the tax refund due.

Thank you so much!!