"The numbers in box 1 and 5 are $46155. and $17284",
I'll take that to mean box 5 is $46155 and box 1 is 17284.
$46155 - 17284 + 4000 = $32871 - 14,600 = $18,371 x 22% = $4042 tax. That's without the book expense.
Q. Please comment on my comments about putting numbers into TT and TT not calculating form 8615 correctly.
A. You only need to enter two numbers, 0 in box 1 at the 1098-T screen and the calculated taxable amount (32871 before books). TT will generate form 8615 and ask you for the parents info, income and tax. I can't explain why you're seeing anything different.
