A waste box for use with a litter box, the waste box is used for collecting litter clumps removed from the litter box and for collecting litter particulate scattered onto the waste box after a cat exists the litter box. The waste box includes a bottom wall, a pair of sidewalls, a pair of end walls and a pivotable top forming a waste storage area. The top is movable between closed and opened positions. The waste box pivotable top includes an opening to direct the scattered litter particulate present on the waste box pivotable top into the waste storage area as the waste box pivotable top moves to the open position.