Paragraph 18
In this Schedule “listed supply” means a supply falling within sub-paragraph (2)—
which is made for a consideration the whole or part of which is determined or payable periodically or from time to time, and
which is treated as taking place by virtue of the issue of a VAT invoice or the receipt of a payment by the person making the supply.
The following supplies fall within this sub-paragraph—
a supply of services,
a supply arising from the grant of a major interest in land,
a supply of water other than—
distilled water, deionised water or water of similar purity, or
bottled water,
a supply of—
coal gas, water gas, producer gases or similar gases, or
petroleum gases, or other gaseous hydrocarbons, in a gaseous state,
a supply of power, heat, refrigeration or ventilation, and
a supply of goods together with services in the course of the construction, alteration, demolition, repair or maintenance of a building or civil engineering work.
The Treasury may by order amend sub-paragraph (2) by—
adding or omitting any description of supply, or
varying any description of supply for the time being listed in that sub-paragraph.