<prompt> Human: Well Im gonna go in for a job next week and Im 19 so this will be only my second job. So my question is how the hell do you fill out that W-2 form?! I dont wanna ask my employer at the risk of seeming idiotic or unprepared so can you guys tell me how to fill it out?  <response>: You mean a W-4, which determines your withholding how much tax is set aside from your paycheck to pay the estimated taxes you will owe. A W-2 summarizes your wages and taxes for the year and is sent by January 31st the following year.You should use the IRS Withholding Calculator 