zero-rate

[ zeer-oh-reyt ]
/ ˈzɪər oʊˌreɪt /

verb (used with object), ze·ro-rat·ed, ze·ro-rat·ing. Chiefly British.

to exempt (merchandise or services) from value-added tax.

British Dictionary definitions for zero-rated

zero-rated

adjective (zero rated when postpositive)

denoting goods on which the buyer pays no value-added tax although the seller can claim back any tax he has paid