The Department of Economic Development's revealed it's more than trebled the income it gets from licensing its TT trademark in the last five years.
Departmental member Rob Callister took to Facebook to detail the figures after the latest row over charges for local businesses using the TT initials.
He revealed the DED made £878,000 last year - compared to just £249,000 five years ago.
Mr Callister says from now on, charities won't be charged for using the TT trademark:
Make sure we can see you in the dark, says bus service
Chief Minister says details on cost-savings to come in April
DoI says it would protect bus services during strike
Peel bids farewell to lifeboat of over 30 years
Fire & Rescue Service deals with 11 incidents in one day
Avoid Fairy Bridge after crash, say police
Man can sue DHSC over respite care PTSD allegations
More EV chargers at Sea Terminal?