A surcharge, also known as checkout fee, is an extra fee charged by a merchant when receiving a payment by cheque, credit card, charge card or debit card which at least covers the cost to the merchant of accepting that means of payment, such as the merchant service fee imposed by a credit card company.

Als Zulage bezeichnet man allgemein Entgelte, die für Sonderleistungen oder spezifische Arbeitsbelastungen über das übliche Entgelt hinaus entrichtet werden.

An additional charge (as for items previously omitted or as a penalty for failure to exercise common caution or common skill)

Prior to 2000 a local government officer or councillor in the United Kingdom, who had unlawfully spent public funds, or caused loss to a local authority through misconduct could be surcharged to recover public money.