1) on your return, there should have been no impact. If you are using the desktop version, you can prove it to yourself by going into Forms View, deleting form 1098T and watch to see whether the amount of the refund / amount due changes. It shouldn't which proves no impact and no need to file an amendment.
2) yes, on her return, enter the 1098T again with $13,000 in Box 1 and $20,000 in Box 5. Just rekey the form exactly as it is presented to you.
3) with respect to the $900. The money spent on the computer is not tax deductible, so there is nothing to do there. The money spent on the books: if they were REQUIRED for a clasee, then increase Box 1 by that amount. if they were not required (say, you bought a dictionary, if anyone does that anymore!!), then that is not deductible.
but again, she may not have to file a federal return at all. the W-2 wages are $3900 and the educational income is about $6500 from items 2 and 3 above, so that is about $10,500. if there were NO federal withholdings on that $3900, there is NO REQUIREMENT to file a return because the total income is less than $12200. What makes your daughter believe she has to file (and it may be because she had withholdings). and your state rules may be different.
