Are taxes levied by governments on the importation, exportation, or use of goods.

taxes on imports that are put in place to protect local economies and to encourage citizens to buy locally. Free trade agreements recommend getting rid of duties and other trade restrictions.

taxes on goods which were traded

Fees paid on items as they pass the border of a country. Duties are based on many things, sometimes on the value of the item, as a percentage of the value, or based on quantity, or both.

Things each of us ought to do. For example, if you have a baby, you have the duty to look after it.