turbotax does not support form 8990. so the form will need to be done manually
use schedule A
the $75 would go on 8990 column c
20AE would report excess taxable income which goes on form 8990 column f
20AF would report excess business income which goes on form 8990 column g
https://www.irs.gov/pub/irs-pdf/i8990.pdf
read the instructions for the form
