<prompt> Human: Hey everyone, Im very lost and very worried. Pretty much as the title says. I started working my 2nd real job this past October and when I filed my W-4 I registered as single with 0. I only just found out about the companys online paystubs and realized that no federal income taxes had been taken out all this time.Logically, when I got my w-2 in the mail right after, my federal income tax box was empty. I called a representative and found out that its been registered as single with 99 dependents since October. Between this job and my last Ive made less than 6,000 last year, but Im honestly worried and confused.I spoke to my supervisor and a member from our corporate office and was basically told I dont know what to tell you when I stated I had not put 99 in my W-4. I have submitted a corrected W-4 form for this next year.I dont know if Im going to end up owing money because of this, Im honestly terrified this is going to come back and get me later in life. I dont even know how this will affect how I file my taxes which Ive yet to do because Im so lost..I called the IRS the other day and a representative told me I needed to submit a corrected W-4 to my supervisor for last year? That didnt make sense to me though, because where is that money that wasnt taken out my checks going to come from?Any help is appreciated and Im sorry if Im vague or missing any details, Ill take any help at all at this point.  <response>: If your annual income was less than the standard deduction 6,350 in 2017, you will not owe any federal taxes. 