A tape cutting device includes a tape cutting unit adapted to ride along a tape roll. The tape cutting unit includes a device panel. A pair of spaced-apart tape roll guides extend from the device panel. A tape cutting blade having a tape cutting edge extends between the tape roll guides. A pair of tape bending tabs extends from the tape roll guides, respectively, toward each other and in spaced-apart relationship to the tape cutting edge of the tape cutting blade. A retaining mechanism is carried by the tape cutting unit. The retaining mechanism is adapted to secure the tape cutting unit on the tape roll.