The gümrük resmi (also called a selametlik resmi, paid to a gümrük emin) was a customs charge, or tax, in the Ottoman Empire. In modern-day Turkey the term continues to be in use: Gümrük vergi ve resimleri (Turkish for customs taxes and duties). Customs duties were typically paid on the value of commodities; in the Ottoman empire, just as in modern commerce, this would fuel disagreements over the "value" of the goods being traded. Sometimes an emin might be stationed at a port or border crossing, to manage customs; this would be a gümrük emin.