The TurboTax refund estimator asks about tuition and fees. This is where I'm assuming I would put in the amount of student loans I took out for the year. The next questions is how much interest I paid on those loans. I haven't made any payments yet so I entered 0 into this field. In doing this, did I get a truly accurate estimate or was I not supposed to enter loan amounts into the field for how much I paid for school?