I just realized I have not been claiming the correct amount of student loan interest (I should have been claiming a lot more), can I claim this year and can I do via TT

[MargaretL · Accepted solution]

Yes, you can claim student loan interest paid in a prior year on the prior year tax return - by filing an amendment.  Only interest paid IN 2016 is deducted on 2016 tax return.  

If you filed prior years' tax returns with TT, please see link below for amending instructions.

https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed

If your haven't filed with TT - it is a little more complicated, as you would have to recreate your original in TT, then amend it.