As part of the 2010 Budget proposals, States Members have approved a vehicle emissions duty and a land value tax which will apply existing stamp duty rates on share transfer flats for the first time.
The share transfer rules take effect from 1 January, but the car duty will start in September. They are expected to raise around £1.5m next year, but around £3m in a full calendar year.
Treasury Minister Philip Ozouf introduced the changes in the Budget and they were approved with little debate.