Provide the relevant expense details in the Expenses section. If you copied from an approved Travel Authorization this information will be prepopulated.Miami per diem rate calculator. To calculate your per diem allowance while traveling to Miami, enter the dates of your business travel. The Electronic Travel Approval Reimbursement System is an integrated computerized system which automates the travel expense request process of Miami-Dade County. The traveler and area head or designee must sign the. Request Form in attestation of travel expenses incurred upon completion of travel. Complete MiamiDade County Local Business Tax Receipt on their website or call (305) 2794949. When travelling for business purposes, not only the transporation portion is deductible, but also lodging while away as well as meals. MunicodeNEXT, the industry's leading search application with over 3300 codes and growing!