<prompt> Human: I just realized that my federal taxes have been blocked for over 6 months. Though i was just claiming 0 but just noticed i have not been paying federal income taxes for the last 6 months. How screwed am i?? I am 24 and make 25,000year and have only paid 525 in federal income tax for the year. What should i do to avoid getting screwed come tax season  <response>: You can fill out a new W-4 using the numbers you get from the IRS withholding calculatorThen, in January, fill out another W-4 using that IRS calculator so that your withholding is even throughout the year. 