<prompt> Human: I was doing my taxes for the first time by myself this year when I saw something peculiar. At my one job I earned 3000 dollars, but they had only taken out 18.74 for federal income tax despite having no dependents. When I looked back through the past few years taxes they did this every year causing me to owe. I know the blame is partially on me for not thoroughly checking my pay stub but I was a 16-20 year old kid. Is there anything I can do or am I SOL? I have since left this jobAssistant: How much did you earn each pay period and what was the pay period?Human: It was always around 100-200 dollars and a pay period was 2 weeksAssistant: Your withholdings are based on the assumption that you earn that much every pay period. So if you earn 2002 weeks, youll only earn 5.2kyear, which is less than the standard deduction. So they assume youll owe no federal taxes.Human: So then when my other jobs came in and I was over I ended up having to owe?  <response>: Each job assumes thats the only income you make. They have no way to knowing what you make elsewhere. 