Switzerland: double taxation agreement, Article 13: Capital gains
(1) Gains derived by a resident of a Contracting State from the alienation of immovable property referred to in Article 6 and situated in the other Contracting State may be taxed in that other State.
(2) Gains from the alienation of movable property forming part of the business property of a permanent establishment which an enterprise of a Contracting State has in the other Contracting State or of movable property pertaining to a fixed base available to a resident of a Contracting State in the other Contracting State for the purpose of performing independent personal services, including such gains from the alienation of such permanent establishment (alone or with the whole enterprise) or of such fixed base, may be taxed in that other State.
(3) Gains from the alienation of ships or aircraft operated in international traffic, boats engaged in inland waterways transport or movable property pertaining to the operation of such ships, aircraft or boats, shall be taxable only in the Contracting State in which the place of effective management of the enterprise is situated.
(4) Gains from the alienation of shares of a company, the property of which consists principally of immovable property situated in a Contracting State, may be taxed in that State.
(5) Gains from the alienation of any property other than that referred to in paragraphs (1), (2), (3) and (4) shall be taxable only in the Contracting State of which the alienator is a resident.
(6) The provisions of paragraph (5) shall not affect the right of the United Kingdom to levy according to its law a tax chargeable in respect of gains from the alienation of any property on a person who is, and has been at any time during the previous six fiscal years, a resident of the United Kingdom or on a person who is a resident of the United Kingdom at any time during the fiscal year in which the property is alienated.