noun
departure tax
A tax levied on individuals when they leave a country, typically collected at airports or borders.
日本では2019年から出国税が導入された。
A departure tax was introduced in Japan in 2019.
noun
expatriation tax; exit tax
A tax imposed on individuals who renounce their citizenship or long-term residency, often on unrealized capital gains. Less common than the departure tax sense.
富裕層の国外転出に際して、出国税が課されることがある。
An exit tax may be imposed when wealthy individuals move abroad.