Income driven plan when unemployed, but make money on the side.

Hey, I am in between jobs at the moment so my income is $0. However, I do make some money reselling on Poshmark. The amount varies each month, but is usually a net profit of $100-500 a month. If I apply for an income based repayment plan, would I say my income is $0 or should I put an estimate of my Poshmark earnings? Will they verify this?