This Convention shall remain in force until terminated by a Contracting State. Either Contracting State may terminate the Convention, through diplomatic channels, by giving notice of termination at least six months before the end of any calendar year after the expiration of a period of five years from the date of its entry into force. In such event the Convention shall cease to have effect for taxable years and periods beginning after the end of the calendar year in which the notice of termination has been given.