No, if you were reimbursed for business related expenses, it does not have to be reported on your W-2 or reported on your tax return. If you received money in excess of business reimbursed expenses, then you would report the income on your tax return. For example, if you spent $1,000 in travel expenses and your company reimbursed you $1,000, you do not need to report this on your tax return, nor do they have to include the amount on your W-2. However, if you were given $1,100, then you would report $100 which is above the amount of the actual business expense reimbursement.
