Yes, I went over the 600 limit Opinion Outpost has last year, and they required me to do that in order to be able to keep cashing out. Once they received it, I was up and running again (Had to physically snail mail it). They later sent me a form 1099 - MISC which I turned into the IRS and it really didn't seem to have much effect as I still got a refund. As neminem stated above, they legally have to report it as taxable income, what you do from there is your choice, but technically you are supposed to turn it in.