you can deduct student loan interest no matter what from what i understand
I just got my wifes 1098-E for student loan interest and tried to input it into Turbo Tax. Our AGI exceeds the limit to claim a deduction, but I noted the following eligibility requirement:
"Your filing status cannot be married filing separetly."
I also noted that you can claim a deduction for student loan interest on loans that your parents helped you pay. I'm sure that both parties cannot claim the deduction so I'd research it more before I put it on my tax return.