Yes you can.
If you meet all of the following requirements, you can claim the student interest deduction:
The input for the student loan interest would go under the Federal section.
See the attached for additional information:
So as the co-signer I understand that I can deduct my dependant son's student loan interest - I have been making interest payments for him. However, I am not listed on the 1098-e, it only has his name on it, and Turbo Tax tells me I cannot claim it. So how to claim it?
@mamao7 You are the cosignor so you are the borrower, mark your name as borrower, enter the lender and interest paid. Continue on.
You do qualify according to the IRS, Topic No. 456 Student Loan Interest Deduction | Internal ...