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.
Police issue statement after reports female 'grabbed by her arm'
Officers issue appeal for information following incident
Option to relocate dementia patients no longer being considered by Manx Care
Body issues further update on reinstatement of rehab service to north
'Multitude of late boat arrivals' impacting customer numbers, says business
Technical issues on the ferry resulted in papers arriving late on the Island yesterday
Six month appointment follows Teresa Cope's resignation