Do you have to file?

[riverspecialist]

If my income/winnings is low enough that i dont owe, do i still have to file?

[MatthewRyan]

how dumb are you?

[TimTimSalabim]

There's a threshold above which you are legally required to file whether or not you would owe any tax. I think it's something like $6k of income, but I would check with a professional or the IRS to be sure.