The tax authority has protected between an estimated £1.2 million and £1.6 million over the next 3 years using this approach.
Mae'r awdurdod treth wedi diogelu amcangyfrif o rhwng tua £1.2 miliwn ac £1.6 miliwn dros y tair blynedd nesaf drwy ddefnyddio'r dull hwn.