loogie,
if you make under $4200 in a year, you get a full refund. in fact, if you made 4200 or less last year, and expect to make either 4200 or less this year, you can set it up so you don't pay taxes. That way you don't wait for your refund. I made a bit more than that last year, and had to pay up, so I don't think 8000 is the right number.