A cashbox includes a box body with a first opening, an anti-theft plate with a second opening, and an anti-theft plate locking mechanism mounted to the box body and including a first latch member that includes a first main body pivotally connected to the box body and a latch portion extending from the first main body. The anti-theft plate is movable to an opening position, where the second opening communicates with the first opening. The anti-theft plate locking mechanism is switchable between a locking state, where the latch portion prevents the first opening from moving to the opening position, and an unlocking state, where the latch portion allows the anti-theft plate to move to the opening position.