If you want to deduct your business expenses, you must complete Form 2106 and itemize your deductions. This form is not required to complete your expense report but your agency may request it.The travel advance is deducted on the front of the Travel Voucher. Are My Travel Expenses as a Reservist Deductible? Am I a Member of a Reserve Component? Find what you need to know about the federal campaign finance process. Wondering how to deduct travel expenses from your taxes? The Harris Center provides mental health outpatient services that consider the whole person as they create a life of stability and recovery.