<prompt> Human: Hey PF,Im not sure if this is the right place to ask this, so please let me know if Im in the wrong place.I do freelance design work and I have a gig at a company for three weeks. They want me fill out a 1099 and a W9 form. I am unfamiliar with these, but I read that these are tax not withholding and that I will have to pay the taxes reported on my 1099 later down the line. So my question is, how do i know if Ill owe taxes, and is there an easy way to calculate how much I will owe? Sorry if this is a noob question. With the loans from school Im paying, Im just making ends meet, so the last thing Id want is it owe the government money too. Thanks in advance!  <response>: Youll definitely owe tax. You will owe 15.3 in social security and Medicare tax, whatever your federal income tax is look up IRS tax brackets, and whatever your state income tax is. 