An impressed duty stamp is a form of revenue stamp created by impressing (embossing) a stamp onto a document using a metal die to show that the required duty (tax) had been paid. The stamps have been used to collect a wide variety of taxes and duties, including stamp duty and duties on alcohol, financial transactions, receipts, cheques and court fees. Usage has been worldwide but particularly heavy in the United Kingdom and British Commonwealth.

A revenue stamp, tax stamp, duty stamp or fiscal stamp is a (usually) adhesive label used to designate collected taxes or fees on documents, tobacco, alcoholic drinks, drugs and medicines, playing cards, hunting licenses, firearm registration, and many other things. Typically, businesses purchase the stamps from the government, and attach them to taxed items as part of putting the items on sale, or in the case of documents, as part of filling out the form.