eBook Travel Expenses TED S Print Item Joan is a self-employed attorney in New York City. Joan took a trip to San Diego, CA, primarily for business, to consult with a client and take a short vacation. On the trip, Joan incurred the following expenses: Airfare to and from San Diego $825 Hotel charges while on business Restaurant meals while on business Car rental while on business Hotel charges while on vacation 475 270 90 665 Restaurant meals while on vacation 297 Car rental while on vacation 180 $2,802 Total Calculate Joan's travel expense deduction for the trip, assuming the trip was made in 2021. x Feedback Check My Work Travel expenses are defined as ordinary and necessary expenses incurred in traveling away from home in pursuit of the taxpayer's trade or business. Expenses included as part of the travel deduction include the cost of such items as meals, lodging, taxis, tips, and laundry. These justbin as long as they can be substantiated and are not lavish or extravagant..