Six Tynwald members were given hospitality passes worth up to £1,000 for this year's TT, while another four were given access-all-areas passes.
The figures have emerged in a Freedom of Information request to the Department for Enterprise about TT freebies for politicians and civil servants.
In its response, the department says six Tynwald members and three government employees were given free access to the Mercury club this year - tickets are sold to the public for between £350 and £1,000.
Four Tynwald members and four government workers were also given promoter passes to host guests.
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