surcharge

an extra charge related to the cost of fuel

an extra tax on top of an existing tax

a large additional charge

an extra fee for the delivery of goods

a minor additional charge

an extra charge applied to a particular item or transaction

an extra charge added for a specific reason or service

to give money for an extra charge

to include an extra charge

to officially force a surcharge to be paid

to officially demand a surcharge, typically used for taxes or official fees

to place an extra charge on something

indicates the existence of a surcharge on something