Why does the new car loan interest deduction calculation not match all of the articles I have read? I have a car loan that qualifies, but when I enter the information in FreeTaxUSA, it says the deduction is $0. The MAGI is over $100,000, and the filing status is married filing separately. The MAGI is $114,841, and the interest paid was $2,773. Based on what I am reading, the max that could be deducted is $7,000 ($10,000 - (15 x $200), so I should be able to deduct the whole thing. But on FreeTaxUSA, it says I can't deduct anything because the $2,773 is less than $3,000 (15 x $200). I looked at Schedule 1-A, and what FreeTax has done does follow the instructions, but I am confused because I thought the phaseout worked differently.