Government is holding a prize draw each month where respondents can win up to £1,000
People are being encouraged to take part in government's Household Income and Expenditure Survey.
It's being handed out to random households, with the data said to help inform government's future financial planning.
But it's thought some are avoiding filling it out due to concerns about privacy and the amount of time it takes.
Treasury Minister Alex Allinson told Manx Radio:
Farmers could be left 'high and dry' by tariffs response
Manx farmer warns of potential impact of Donald Trump's announcements
Will the impending arrival of Wetherspoons to Manx shores impact the local music scene?
One artist says local people will always support local music
Thirty nine babies born in March
Two sets of twins among them
Fines of nearly £22k issued for Income Tax and NI offences
Nine corporates and five individuals fined