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.
Road closures in place following incident in Hillberry area
Police response ongoing with Little Mill Road, Cronk-ny-Mona and Creg Ny Baa affected
Accessible bus stops rolled out across Bus Vannin network
Department of Infrastructure says upgrades will make travel easier for wheelchair and mobility scooter users
£1 million National AI Office launched to coordinate artificial intelligence policy and adoption
NAIO to oversee strategy, guidance and skills development across public and private sectors
Confusion over cause of issues for IOM residents selling on Vinted
Manx users say they've not been able to use site for around a month
Peel Commissioners first to announce rate increases
Its general rate will be raised to 275 pence in the pound