Jersey's Goods and Sales Tax is likely to cost householders there an estimated average of ?626 a year.

For a household containing a couple, neither of whom are pensioners, the average figure is ?693 per annum. The average cost for a couple with at least one dependent child is put at ?877, and the average for a household containing a single pensioner is ?259 per annum.

The average amount of GST per year paid by lower income households (the bottom 20%) will be ?271.

A government spokesman said: 'Nobody likes extra taxes, but GST will leave the Island in a strong position to deal with the loss of up to ?100 million in tax revenues next year, as a result of the move to 0/10%, which is essential to protect our economy'.

The figures above were arrived at using detailed retail price indices.

(Picture: A view of Jersey, from blueislands.com).