<prompt> Human: Today, I filed my federal tax return through freetaxusa.com, and everything seemed fantastic up until the end, where when reviewing my tax forms, I noticed I actually owed money to the IRS. If I only made a little bit over 15,000 in 2015, and claimed 1 or 0 nearly all year, why is it that I owe money?  <response>: Did your parents claim you as dependentare you filing as dependent on someone else? That is usually the cause of owing more than you expected at your age. Everything else i can think of has been mentioned. Make sure you double check all your paystubs for the year if things are still not adding up right! 