Termination of tax treaty requires diplomatic notice and alters withholding and fiscal-year applicability going forward. Termination requires diplomatic notice at least six months before year-end after the Convention has been in force five years. Upon termination the Convention ceases prospectively: in one Contracting State by reference to the fiscal year commencing on or after the April following the calendar year in which notice is given; in the other Contracting State for withholding taxes as to amounts paid or credited after that calendar year's end and for other taxes as to taxable years beginning after that calendar year's end. The instrument includes multilingual authentic texts with English prevailing.