The Department for Enterprise says TT visitors spent an average of £1,015 each during this year's festival.
The figures have been released in response to a Freedom of Information request about visitors and how much they spend.
In its reply, the department published the results of a visitor survey carried out by Hampshire-based TSE research this year.
The figures show those coming to the TT were most likely to be from the UK or Ireland, aged between 40 and 60, and staying in tents.
Any progress on street resurfacing plans?
An MHK wants to know what progress has been made on plans to resurface a town's two main streets.
Commissioners want to rent bowling club from gov
Port Erin Commissioners are looking to rent the town's bowling green for £400 per year from the Department of Infrastructure.
Landmark Education Bill to be read in Tynwald
Legislation which the government says will modernise the education system will be introduced to the House of Keys next week.
Gov says it's found £11.4m in potential savings
The government says it's finished 35 out of 180 potential cost-saving measures.
Tynwald will be asked to approve pension changes
Tynwald will be asked to approve changes to pension schemes for public sector workers when it sits in December.
Bill to recognise Douglas as city to go before LegCo
A Bill to recognise the capital's new city status will go before the Legislative Council next week.
3FM's Santa's Little Helpers back in town
3FM's Santa's Little Helpers charity drive is back this year.
Tyres dumped at local beauty spot
Braddan commissioners are urging people to come forward with information after a fly-tipping incident on one of the Island's most picturesque roads.
