<prompt> Human: I recently started a new job as a freelance assistant editor for a small video production company. In the production world, people are generally payed by there day rate. I make 125 a day for a total of 625 a week. My checks arent being taxed. Do I need to fill out quarterly taxes? I would appreciate any help on this matter.  <response>: If this is your only source of income then you wouldnt have withholding happening. Look at worksheets in Form 1040-ES booklet to find out what amounts to pay in as estimated taxes four times a year. Youll use Schedule C, Schedule SE, and Form 1040 especially lines 12, 2729, 44, 57, and 65 when determining your actual tax liability at tax time. Then you will learn if you overpaid and get refund or underpaid and still owe some more. 