Households all over the Island are to be contacted to help with a survey of the Manx VAT spend.
This will give a more accurate figure to form the basis of calculating the VAT income the Island recieves.
It follows two cuts in the Island's overall figures by the UK. That has forced cuts on Manx government spending.
Economic adviser to the government, Stephen Carse, says the results should be of long-term benefit.
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Government issues clarification on proposed changes to public housing policy
"There is no proposal to reduce the 10-year residency requirement"
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Charles Rennie Mackintosh sideboard on display at Knockaloe
Government 'supporting' Strix after announcement of Ramsey factory closure
Department for Enterprise responds
Minister acknowledges challenges facing hospitality industry
Chris Thomas says recruitment rules are adding to the pressures facing the sector