<prompt> Human: I would like to start by saying yes, I am an idiot. I didnt file my taxes for 2015 in time because I didnt have my documents in order, did some research and saw that as long as I was receiving money back which I always have, I had nothing to worry about. I expected I would be receiving a small amount of back and put it off. Fast forward to now, I finally have what I need to file and it looks like I owe the IRS 800, plus Im guessing a late fee.This is what Ive been able to calculate with the 1040EZ form online. I earned around 30,000 in wages and my employer withheld about 2000 for federal taxes. I also received around 2000 in outside, untaxed income 1099. My friend who earns about 50,000 in taxed wages received money back so Im wondering what gives. I suppose my employer didnt withhold enough for federal tax, but I filled out my W4 as single, head of household with 0 dependents as always.My question is, do you think its worth it to have a professional look at this for me and see if Im taking all possible deductions? I would hate to pay a professional and end up still owing the 800 on top of their fee. Any advice is appreciated!  <response>: Head of householdTheres your problem. You arent a head of household if you have no dependents to be a head of household of. 