I just started selling PC this year, so I have no idea what to do about taxes. And I've never been good with what to do aroudn tax time. My dad is an accountant so I rely on him. It wasn't until last month that I realized I might need to pay some for taxes, so I've put some money aside for that. However, I was talking to a friend the other day that owns a small business and she said that if I wasn't sending in quarterly taxes, that I would have to pay a large fine? Is this true?? I just assumed that if I kept my receipts and had some money aside, I could take care of all the taxes at the end of the year. Thanks!