Here is a reprint of the laws regarding work permits.
There are two types of work permit applications: a) Application for permission to employ a foreigner: Any foreign citizen who wishes to work in Belize MUST be a legal resident (have resided in Belize for at least six months). He or she must be in the country legally, with proper visas and/or permits issued by the Immigration Department. The prospective employer must submit the following to the Labour Department: The application for the foreign worker he wishes to hire; three passport photos; $10 in stamps; a valid passport; and proof that this individual is qualified for the job. At the same time, the Labour officer must be satisfied that all efforts to employ a Belizean have been exhausted. This includes providing proof that the vacant position was advertised locally for at least three weeks, following which, no suitable applicant was found;
and, b) Application for Temporary Self-Employment: This category would apply to foreign investors, among others. All applicants must be in the country legally, with proper visas and/or permits issued by the Immigration Department. They are required to produce proof of reasonably sufficient funds for their proposed venture (i.e.: local bank statement of account). Applicants must also obtain a reference from the relevant Ministry or Local Organization concerned with the category of work involved. In such situations, the six-month residency requirement is waived, and it is assumed that the venture will lead to creation of employment for Belizeans in the future.
Work Permit Fees are now as follows: Professional and technical workers: $750; general workers: $100; seasonal agricultural workers: $25 per crop; entertainers in groups of two to five: $250 each; individual entertainers: $150; missionaries, educational and volunteer individuals: $25. Barring exceptional circumstances, work permits will not be granted for waiters, vendors, domestic workers, and farm hands.
For further information, telephone the Immigration and Nationality Department at: 501-8-22611 or -22423; or the Labour Department at: 501-8-22204
I believe a work permit to be a bartender would be very difficult to get.