Abstract: Tab cutting apparatus designed to assist in floor leveling, the tab cutting apparatus including a base designed for movement along the surface of a floor. A framework is affixed to the base and supports a vertically movable portion above the base. The framework and vertically movable portion include height control apparatus capable of moving the movable portion vertically relative to the framework. Height sensing apparatus is affixed to the movable portion. A cutting element is affixed to the movable portion and positioned at a fixed distance below the height sensing apparatus. The cutting element is designed to cut an upright ribbon or rod portion of a leveling tab.