USA: double taxation agreement, Article 27A: Offshore activities
Replaced by new DTA, which applies in UK from 1st April 2003 for CT, 6th April 2003 for IT and 1st January 2004 for PRT. For US withholding taxes it applies from 1st May 2003 and for other US taxes from 1st January 2004. See DT19939L.
(1) Notwithstanding the provisions of Article 5 (Permanent establishment) and Article 14 (Independent personal services), a person who is a resident of a Contracting State and carries on activities in the other Contracting State in connection with the exploration or exploitation of the seabed and sub-soil and their natural resources situated in that other Contracting State shall be deemed to be carrying on in respect of those activities a business in that other Contracting State through a permanent establishment or fixed base situated therein.
(2) The provisions of paragraph (1) shall not apply where the activities are carried on for a period not exceeding 30 days in aggregate in any 12 month period. However, for the purpose of this paragraph, activities carried on by an enterprise related to another enterprise shall be regarded as carried on by the enterprise to which it is related if the activities in question are substantially the same as those carried on by the last-mentioned enterprise.
(3) The provisions of Article 8 (Shipping and air transport) shall not apply to a drilling rig or any vessel the principal function of which is the performance of activities other than the transportation of goods or passengers.