To charge below or under; to charge less than is usual or suitable for; as, to undercharge goods or services.
To put too small a charge into; as, to undercharge a gun.
A charge that is less than is usual or suitable.
an insufficient charge
charge (someone) too little money
Any transportation charge below the filed tariff rate, the accepted reduced rate, or that is prescribed by the Commission in one of its MRTs. The PUC may impose and collect form the carrier a fine that equals the amount of the undercharge.
To charge less than the proper amount.