<prompt> Human: Back in 2011, I ran sold iPhones on eBay, I made really good money for a 21 year old and didnt pay taxes because I didnt know much about running a business. I sold on eBay. Well today I received a notice saying I owe 19,000 by May 3, 2013. I am a poor college student working as a server at a restaurant. In other words, I am fucked. I dont live at home with my parents so I need to pay rent and stuff. What can I do, I truly am so poor that I cant afford this. Any advice on what I should do next?Edit: once I graduate I should be able to get a decent job with my computer science degree. Would they wait for me until I start making real money?  <response>: CPA here. This is a great lesson for people who believe they wont ever get caught not reporting different types of income. I suspect you were taxed on your gross proceeds and not your gains from these sales. We need to file returns for every year you sold these iPhones. Did you file for 2011? If that is the case we need to file an amended return with these sales included. Start gathering all the information necessary. You will need to figure your total sales purchases made during this time period. We will need to file a 1040X Amended Return with this information and then contact the IRS to ensure they agree. You will owe interest and penalty on top of the tax. 