The Federal ID is under the address, see image in the above answer. You can e-file without the Federal ID number on the 1098-T, however, you will not be eligible for the American Opportunity Credit (most valuable) without it. You will only be able to claim the Lifetime Learning Credit.
Note** Although the Tuition and Fees Deduction was extended through Dec 31, 2017, TurboTax has not been updated to take the deduction. We are waiting on finalization from the IRS.
[Edited 02/20/18 2:18 pm PST]
