As prescribed in 229.402-70(f), use the follow clause:
VALUE ADDED TAX EXCLUSION (UNITED KINGDOM) (JUN 1997)
The supplies or services identified in this contract are to be delivered at a price exclusive of value added tax under arrangements between the appropriate United States authorities and Her Majesty’s Customs and Excise (Reference Priv 46/7). By executing this contract, the Contracting Officer certifies that these supplies or services are being purchased for United States Government official purposes only.
(End of clause)