I'm having some trouble figuring out how much in tax I owe and need to pay. I'm currently a student and I sold a lot of items I imported over the summer to help pay for school. I made about $2,100 off of Amazon, ~$3,000 off of eBay, and $750 through sales I made on a variety of forums using PayPal. Both the eBay and Amazon accounts ended up getting suspended. My problem is I spent nearly all of that money on school and now I don't have enough left to pay taxes. I don't have a job now nor do I really have time to make some money without doing poorly in school. I haven't gotten any IRS forms from PayPal, Amazon, or eBay. Will the IRS still know about my income and will they come after me? I created a Sole Proprietorship at the end of November and got an EIN thinking it would simplify my taxes and I would get more deductions for my sales over the summer. After doing that I found out about the additional 15% Self-Employment tax from the Schedule C. I don't know if this applies to me or not, can anyone help me out? Please estimate the percent of my income I owe. Just ballpark it, I just want some idea of how much before I try to figure out how I'm going to pay my taxes off. Also, I don't have many of my receipts from expenses or inventory, will I still be able to estimate them and write them off or am I SOL? I really appreciate any and all help!