Hat Money Law and Legal Definition

In the context of Maritime law, hat money refers to a small gratuity which is usually paid to the master and crew of a ship for taking care of the cargo. Hat money is also known as pocket money or primage. Hat money is a small compensation or duty paid to the master, over and above the freight, for his care and trouble as to the goods. The master has a lien of the cargo for theses charges and also for freight.